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RPA40BT Owner's Manual

Keith Harris
Updated

1000W 4 Zone/Channel Home Stereo Bluetooth Amplifier Receiver

 

Includes

  • Receiver
  • Remote Control (for the MP3 module)
  • Video / Support Material Card

 

Important Safety Instructions

A standard electrical safety warning label enclosed in a rounded rectangular border: Left Icon: A black triangle containing a white lightning bolt symbol indicating high-voltage electrical hazard. Center Text Box: A central box with a black top banner reading "CAUTION" in white uppercase text. The white lower box reads "RISK OF ELECTRIC SHOCK. DO NOT OPEN" in black uppercase text. Right Icon: A black triangle containing a white exclamation point symbol indicating a general safety hazard alert.

To reduce the risk of electrical shock, never open the unit. There are no user-serviceable parts inside. We recommend sending the unit to the rockville service center for any repairs.

  • Do not expose this unit to any kind of moisture.
  • Please ensure that the unit is situated in a properly ventilated area.
  • Do not attempt to operate this unit if the power cord has been frayed or broken.
  • This unit is intended for indoor use only.
  • Always mount this unit in a safe and stable manner.
  • Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed on or against them, paying particular attention to the point of exit from the unit.
  • To avoid unnecessary wear and to improve the unit’s life span, unplug the unit when not in use for extended periods of time.

 

Introduction

The RPA40BT is a 4 zone true 4 channel receiver for home audio or commercial audio. It has a true 4 channel amplifier built in. Each channel has independent volume controls allowing you to connect speakers in up to 4 different rooms. You can easily add on a wall volume controller if you want to control the volume from each room. Each channel/zone is 4-8 ohm stable which means you can connect (2) 8 ohm speakers in parallel on each channel which would allow you to connect up to 8 speakers (2 per zone).

 

Stereo/Mono

This has a stereo/mono switch which just means that if you connect 2 channels into a single zone you can get stereo separation of left and right channels. This receiver supports 4 mono zones/rooms or 2 stereo zones/rooms.

 

High Power

When you pick this receiver up you can feel how heavy it is. It has a thick metal chassis to protect the internal amplifier. The amplifier puts out 250 watts RMS and 1,000 watts of peak power. All 4 zones/rooms have independent amplifiers that will easily power 1-2 speakers.

 

Playback Options

The RPA40BT has a high quality Bluetooth chip with a 35 foot range. It also has an RCA input to connect any audio device as well as an optical input to connect your television. The RCA output allows you to expand your system and add a powered subwoofer or another amplifier. You can also connect 2 microphones directly to the front of the receiver and use this for karaoke or for PA announcements. There are built-in mic inputs with echo control and independent mic volume controls making this perfect for karaoke performances. Other playback options include SD card, USB playback, and FM radio.

 

Controls

From the receiver you can control the volume of each zone/channel. There are bass and treble equalizer controls so you can tune the sound to your liking. You also get a master volume knob for the inputs and for the Bluetooth module.

 

Euroblock Speaker Terminals

The Euroblock (Phoenix) speaker terminals make connecting speaker wire easier than ever. You can detach the terminals connect your speaker wire and then connect the terminals back to the receiver. That is way easier then sticking your head into a shelf and bumping it into the wall 10 times. Euro-block terminals will literally save you many headaches.

 

Functions

An instructional diagram detailing the front panel (top) and rear panel (bottom) controls and connections for the Rockville RPA40BT amplifier, with numbered callouts from 1 to 23:Front Panel Controls (Top Diagram)CH A (LEFT) & CH B (RIGHT) Volume Controls: Two large rotary knobs for adjusting output levels for Channels A and B.SD Card Slot: Vertical slot for playing audio files directly from an SD memory card.Media Control Buttons: Row of six buttons beneath the LCD screen (MODE, Play/Pause, MENU, REPEAT, Previous/Rewind, Next/Fast-Forward).LCD Display Screen: Digital display screen for source playback, menu settings, and track status.USB Port: Standard USB-A port for media playback.IR Sensor: Small infrared receiver window for the remote control.CH C (LEFT) & CH D (RIGHT) Volume Controls: Two large rotary knobs for adjusting output levels for Channels C and D.Power Button: Main system power toggle switch on the far left.ECHO Knob: Rotary control for microphone echo effect depth.MIC 1 VOL & MIC 2 VOL Knobs: Dedicated volume adjustment knobs for Microphones 1 and 2.MIC 1 & MIC 2 Inputs: Two $1/4\text{''}$ (6.35 mm) microphone jack inputs.TREBLE & BASS Controls: Rotary EQ knobs for adjusting high and low frequencies ($\pm15\text{ dB}$).INPUT VOL Knob: Master input volume level control.MP3/BT • AUX • OPT Selector Knob: Source selection knob to switch between Bluetooth/USB/SD, Auxiliary input, or Optical input.Rear Panel Connections (Bottom Diagram)FM ANTENNA: Threaded connector with a wire FM radio antenna attached.FUSE (T5AL/250V): User-accessible compartment housing the system protection fuse.STEREO / MONO Toggle Switch: Push-button selector to switch output mode between stereo and mono.OPT IN: Optical digital audio input jack.AUX IN (L/R): Stereo RCA line input ports.REC OUT (L/R): Stereo RCA record/line output ports.SPEAKER OUTPUTS (Channels A, B, C, D): Four sets of green detachable terminal block (Euroblock/phoenix) connectors supporting a minimum load impedance of $4\ \Omega$.AC115V / 60Hz Power Cord: Integrated main AC power supply cable entering the lower right corner.
1.) CH A & B Master Volume Knobs:
  • CH A (LEFT) 
  • CH B (RIGHT)
2.) SD Card Input Slot:
  • Up to 32 GB Standard SD Card recommended for compatibility.
  • Windows FAT32 formatting required.
  • MP3 or WAV files on the card can be played.
3.) MP3 Module:
  • MODE: 
    • Press to cycle through available input sources.
    • Press and hold to enter or exit Standby mode.
  •  Play/Pause: 
    • In USB, SD, and Bluetooth modes; Press to start or pause playback.
    • In the Folder menu; Press to select desired file or folder.
    • In FM Radio mode; Press and hold to automatically scan and save all available stations. Press and hold again to stop scan. Can save up to 40 stations.
  • MENU/RECORD: 
    • Press this button to enter the folder menu (USB and SD mode only).
      • Use the Previous & Next buttons to cycle through files and/or folders. 
      • Press the Play/Pause button to select a file or enter a folder.
    • Press and hold for 1 second to begin recording the RPA40BT’s current output onto your USB thumb drive or SD card. 
      • Press the button again to stop recording. Press and hold for 5 seconds to force disconnect any paired BT device.
  • REPEAT: 
    • Press to cycle through repeat modes (in this order):
      • Repeat One
      • Repeat Random
      • Repeat All
      • Repeat Folder
  • Previous/Rewind:
    • In USB/SD modes; Press this key to return to the previous track. 
    • In USB/SD modes; Press and hold to rewind the current track.
    • In FM Radio mode; Press to cycle back through the saved stations. 
    • In FM Radio and BT modes; press and hold to lower the volume.
  • Next/Fast Forward:
    • In USB/SD modes; Press this key to proceed to the next track. 
    • In USB/SD modes; Press and hold to fast forward the current track. 
    • In FM Radio mode; Press to cycle forward through the saved stations. 
    • In FM Radio and BT modes; Press and hold to raise the volume.
4.) LCD Display:
  1. Spectrum Analyzer
  2. Elapsed Track Time / Total Track Time
  3. Playback Status
  4. Track Name
  5. Track Number (i.e. track 15 of 18 tracks)
  6. Current EQ Setting
  7. Current Repeat Mode
  8. Current MP3 Input SourceA detailed visual diagram of a digital media player screen with lowercase letter callouts pointing to various user interface elements: a (Spectrum Analyzer): A graphic equalizer / real-time audio spectrum bar graph displayed along the bottom edge of the screen. b (Track Time Counter): Numerical playback timer indicating current elapsed time and total track duration (05:04 / 05:09). c (Playback Status Indicator): A solid right-pointing triangle icon indicating active play mode. d (Track Title Display): Scrolling text area showing track metadata, currently displaying World- -Substit. e (Folder / Track Number): Numeric counter at the top center showing folder and track index (015-018). f (Equalizer Preset & Volume): Text preset indicator (JAZZ) above a 5-bar volume level graphic. g (Repeat / Playback Mode): Playback mode icon indicating repeat status (an enclosed A icon). h (Media Source Icon): Graphic icon in the top-right corner depicting the source media type (USB drive / SD card).
  9. Saved Station Number
  10. Station Frequency
  11. FM Frequency Bar
  12. Indicates the location of the current station’s frequency.
5.) IR Receiver:
  • Receives the signal from the remote control.
6.) USB Input:
  • Up to 32 GB Standard USB Stick / Thumb Drive recommended for compatibility.
  • Windows FAT32 formatting required.
  • MP3 or WAV files on the drive can be played.
7.) CH C & D Master Volume Knobs:
  • CH C (LEFT) 
  • CH D (RIGHT)
8.) Power Button:
  • Turns the unit on and off.
9.) ECHO:
  • Mic Echo Control: This vocal effect adds a series of reverbs and delays (repeated, decaying echoes) to the voice / microphone.
10.) MIC 1 & MIC 2 VOL:
  • Independent Microphone Volume Controls:
    • MIC 1 VOL
    • MIC 2 VOL
11.) MIC 1 & MIC 2 Input:
  • MIC 1 Input: ¼˝ TS (Tip-Sleeve)
  • MIC 2 Input: ¼˝ TS (Tip-Sleeve)
12.) TREBLE & BASS:
  • 2-Band EQ Controls:
    • TREBLE: Highs / High end of frequency spectrum
    • BASS: Lows / Low end of frequency spectrum
13.) INPUT VOLume Control:
  • Controls volume for:
    • AUX
    • USB
    • SD
    • BT
    • FM Radio 
    • Optical Input
14.) MP3/BT | AUX | OPT Input Source knob: 
  • Select Input Source:
    • MP3(USB or SD)/BT & FM Radio
    • AUX: Auxiliary RCA Audio Input 
    • OPT: Optical
15.) FM Antenna:
  • Extend to increase FM radio reception.
16.) T5AL/250V FUSE: 
  • User-Serviceable Fuse Compartment
17.) STEREO/MONO: 
  • Press to select Mono Output mode.
  • Depress to select Stereo Output mode.
18.) OPTical IN:
  • Optical Digital Audio Input w/LED to indicate when an optical signal is present
19.) AUX AUDIO INPUT:
  • Auxiliary RCA Audio Input
20.) REC AUDIO OUTPUT:
  • RCA Audio Output for recording.
21.) CH A, B, C, D Euroblock Speaker Outputs:
  • CH D
  • CH C
  • CH B 
  • CH A 
23.) Power Cable:
  • Input Voltage: 110V/60Hz

 

Remote Control

  1. Standby: Press to enter or exit standby mode. Please Note: To turn the unit off, use the power button on the unit.
  2. MODE: Press to cycle through available input sources.
  3. MUTE: Press to mute playback.
  4. EQ (USB and SD mode only): Press to cycle through the preset EQ settings, NORMAL / ROCK / POP / CLASSICAL / JAZZ / COUNTRY.
  5. VOL+: Press to increase the MP3 player’s volume settings. Please Note: This will not affect independent channel volume.
  6. Play/Pause: In USB, SD, and Bluetooth modes, press to start or pause playback. In FM radio mode, press and hold to automatically scan and save all available stations. Press and hold again to stop scan. Can save up to 40 stations.
  7. Previous/Rewind: In USB/SD modes, press this key to return to the previous track. Press and hold to rewind the current track. In FM radio mode, press to cycle back through the saved stations. (Next/Fast Forward): In USB/SD modes, press this key to proceed to the next track. Press and hold to fast forward the current track. In FM radio mode, press to cycle forward through the saved stations.
  8. VOL-: Press to decrease the MP3 player’s volume settings. Please Note: This will not affect independent channel volume.
  9. REP: Press to cycle through repeat modes (in this order): Repeat One, Repeat Random, Repeat All, and Repeat Folder.
  10. U/SD: Press to toggle between USB and SD input.
  11. Number Pad: Use the number pad select a specific track in USB and SD mode or a specific station in FM radio mode. When selecting radio stations, enter the station’s frequency, no decimal needed. For example, if you are selecting 88.1, simply press 8-8-1 on the number pad. If you are selecting 102.9, enter 1-0-2-9 on the number pad.
A detailed visual diagram of a digital media player screen with lowercase letter callouts pointing to various user interface elements: a (Spectrum Analyzer): A graphic equalizer / real-time audio spectrum bar graph displayed along the bottom edge of the screen. b (Track Time Counter): Numerical playback timer indicating current elapsed time and total track duration (05:04 / 05:09). c (Playback Status Indicator): A solid right-pointing triangle icon indicating active play mode. d (Track Title Display): Scrolling text area showing track metadata, currently displaying World- -Substit. e (Folder / Track Number): Numeric counter at the top center showing folder and track index (015-018). f (Equalizer Preset & Volume): Text preset indicator (JAZZ) above a 5-bar volume level graphic. g (Repeat / Playback Mode): Playback mode icon indicating repeat status (an enclosed A icon). h (Media Source Icon): Graphic icon in the top-right corner depicting the source media type (USB drive / SD card).

 

Input/Output Configurations

A visual connection guide illustrating how external devices connect to the front and rear ports of the Rockville RPA40BT amplifier:Front Panel Connections (Top Section)SD Card Slot: An arrow points from an SD memory card icon into the vertical SD card slot.USB Port: An arrow points from a USB thumb drive icon into the standard USB port.Microphone Jacks: An arrow points from two microphone icons to the MIC 1 and MIC 2 $1/4\text{''}$ input jacks.Rear Panel Connections (Bottom Section)Optical Input (OPT IN): Arrows show connections from digital audio sources—including a TV, Gaming Console, DVD / Blu-ray Player, and Cable/Satellite Box—to the optical digital input jack.Auxiliary Input (AUX): Arrows show stereo RCA connections from portable media devices—including a Cell Phone, MP3 Player, and Tablet—to the red and white AUX input ports.Record Output (REC): An arrow points from the stereo RCA line output ports (REC) to an external Recording Device.

Recording Device: The AUDIO OUTPUT (REC) should only be used when connecting another device to record your mix. It will not work as a regular line level signal output as record level outputs are lower power signals than line level outputs.

 

Connecting Speakers

1. Carefully cut away a small amount of the speaker wire’s insulation.
A close-up technical diagram illustrating cable preparation: Tooling: A pair of scissor blades positioned on the left side, open around the edge of a flat cable. Cable: A light gray flat cable or wire jacket extending from the right side. Action: The tip of the lower scissor blade is making a small horizontal cut into the center end of the cable sheath to assist in splitting or stripping the outer jacket.
2. Peel back enough of the insulation to expose approximately 3 inches of wire.
A close-up diagram showing wire insulation being stripped away: Tooling: A pair of scissor blades positioned on the right side of the frame cutting into the jacket material. Wire Assembly: A two-conductor speaker cable with black and red insulated wires running parallel to each other. Stripping Action: The scissor jaws curl and pull away a strip of the outer protective insulation, peeling back the sheath material along the length of the wire.
3. Cut off the excess insulation.
A technical diagram illustrating prepared speaker cable conductors: Cable Jacket: A light grey outer protective jacket extends from the right edge. Inner Conductors: Two individual insulated conductor wires project out from the jacket opening: A black insulated wire curving upward. A red insulated wire extending straight out below it. State of Wire: The outer jacket has been trimmed back, leaving the two distinct red and black leads exposed and ready to be stripped at the ends.
4. Strip 1/4˝ of insulation from each wire (fig. a). Fan out the strands (fig. b) and twist them (fig. c) making sure that there are none sticking out.
A three-step technical illustration detailing how to properly twist stranded wire prior to insertion or termination: fig. a (Straight Strands): A red-insulated wire with its stripped bare copper strands extending straight out in parallel alignment. fig. b (Frayed Strands): The same wire with the exposed copper strands splaying outward in a loose, frayed fan shape. fig. c (Twisted Strands): The exposed copper strands tightly wound together into a single, neat spiral bundle to prevent loose straggling wires.
5. Loosen the screws at either end of the Phoenix terminal (fig. d) and pull it away from the amp. Now loosen the terminal screws on top (fig. e).
A split technical diagram divided diagonally, demonstrating how to operate the screw terminals on a green removable Euroblock/Phoenix speaker connector: fig. d (Top Wire-Clamping Screws): View: Shows the top and front entry ports of the green terminal block. Action: A flathead screwdriver tip is inserted vertically into one of the top screw holes, with a circular two-way arrow indicating turning the screw to tighten or loosen the wire clamp. fig. e (Side Mounting Screws): View: Shows the side mounting flange of the green terminal connector block. Action: A flathead screwdriver is inserted horizontally into the side mounting screw hole, with a circular arrow indicating turning the screw to secure or release the connector from the speaker's socket housing.
6. Insert the appropriate wire into the corresponding slot. Check that the wire is fully inserted and properly seated.
A technical diagram illustrating wire insertion into a 2-pin green Euroblock/Phoenix terminal connector block: Terminal Connector: A green plastic terminal block featuring two top screw-access holes, two side locking screws on mounting ears, and two rectangular wire entry ports on the front face. Wire Insertion: A wire conductor (shown in white with a black insulated handle/sleeve) is aligned horizontally with an arrow pointing directly into the right-hand front entry slot, indicating where the stripped wire lead should be fully inserted before tightening the top terminal screw.
7. Tighten the terminal, do not overtighten. Repeat this procedure for the other wire(s). Make sure you’ve inserted the wire into the correct slot.
A technical diagram illustrating the final step of securing a wire conductor into a 2-pin green Euroblock/Phoenix terminal connector: Wire Connection: An insulated wire (black outer jacket with a white inner lead) is fully inserted into the right-hand front entry port of the green connector block. Tightening Screw: A flathead screwdriver is positioned vertically into the corresponding top screw hole directly above the inserted wire. Action Indicator: A circular two-way arrow around the screwdriver shank indicates turning the screw clockwise to clamp the internal metal plate down tightly onto the exposed wire conductor.
8. Plug the terminal into the zone slots. Gently push it until you hear it click.
A technical diagram illustrating how to plug a wired Euroblock/Phoenix terminal connector into an audio device socket: Wired Connector: In the foreground, a green 2-pin Euroblock connector has red and black speaker wires connected and secured in its front entry ports. Socket & Insertion Direction: Black arrows point toward two pin receptacles on a green socket mounted on the rear panel of the audio equipment, indicating the alignment and direction to push the connector firmly into place.
9. Tighten the screws at either end of the terminal to lock it in place. Do not overtighten.
A technical diagram illustrating the final step of securing a plugged-in Euroblock/Phoenix terminal connector onto an audio device panel: Inserted Terminal Block: A green 2-pin Euroblock connector with red and black speaker wires attached is fully seated into its matching rear panel socket (located next to RCA jack inputs). Locking Mechanism: A flathead screwdriver is inserted horizontally into the side mounting flange screw on the left side of the terminal block. Action Indicator: A circular two-way arrow around the screwdriver shaft indicates turning the screw clockwise to firmly lock the connector block onto the chassis socket housing.

 

Speaker Output Configurations

The RPA40BT has the ability to output a mono or stereo signal. Simply press (mono) or depress (stereo) the mono/stereo button on the back of the unit. Please refer to the explanations of mono and stereo output below.

Attention: It’s important that you match the impedance of your speakers to your amplifier. The RPT40BT has a minimum speaker impedance of 4 ohms; hence, the total impedance of your speakers must not be less than 4 ohms. Be sure to observe proper polarity.

Mono: In mono mode, the L/R audio signal is sent to one channel. Hence each speaker is playing the left and right signal at once.

Option 1: One 4-ohm or 8-ohm speaker connected to each channel.
A wiring connection diagram illustrating a four-channel speaker setup connected to the rear panel of an audio amplifier: Amplifier Output Terminals: The top section displays four green 2-pin Euroblock output ports labeled from left to right as + CH D - (RIGHT), + CH C - (LEFT), + CH B - (RIGHT), and + CH A - (LEFT). Inputs to the left include RCA connectors labeled AUX and REC, and an AC power cord entry labeled AC115V 60Hz is on the right. Speaker Wiring Connections: Channel D: Red (+) cable connects to terminal +, black (-) cable connects to terminal - leading to speaker CH D. Channel C: Red (+) cable connects to terminal +, black (-) cable connects to terminal - leading to speaker CH C. Channel B: Red (+) cable connects to terminal +, black (-) cable connects to terminal - leading to speaker CH B. Channel A: Red (+) cable connects to terminal +, black (-) cable connects to terminal - leading to speaker CH A. Speakers: Four identical bookshelf or surface-mount speakers are highlighted in blue boxes along the bottom, labeled CH D, CH C, CH B, and CH A from left to right.
Option 2: Two 8-ohm speakers, in parallel, connected to each channel.
Short Alt Text (Recommended) Wiring schematic showing eight speakers connected in parallel pairs across channels A, B, C, and D on the rear panel of an audio amplifier using Euroblock terminal connectors. Detailed Description (For extended accessibility captions) A technical wiring schematic illustrating an 8-speaker parallel setup connected to a 4-channel audio amplifier rear panel: Amplifier Output Terminals: The top section displays four green 2-pin Euroblock terminal connectors labeled from left to right as + CH D - (RIGHT), + CH C - (LEFT), + CH B - (RIGHT), and + CH A - (LEFT). Inputs to the left include RCA ports for AUX and REC, and an AC power cord entry labeled AC115V 60Hz is located on the right. Parallel Speaker Connections: Channel D: The positive (+) red wire splits to connect to the positive terminals of two separate speakers; the negative (-) black wire splits to connect to the negative terminals of both speakers in the CH D group. Channel C: The positive (+) red wire splits to connect to two speakers; the negative (-) black wire splits to connect to both speakers in the CH C group. Channel B: The positive (+) red wire splits to connect to two speakers; the negative (-) black wire splits to connect to both speakers in the CH B group. Channel A: The positive (+) red wire splits to connect to two speakers; the negative (-) black wire splits to connect to both speakers in the CH A group. Speaker Groups: Eight total identical speakers are arranged in four paired pairs highlighted in blue boxes labeled CH D, CH C, CH B, and CH A from left to right.

Stereo: In stereo mode, the audio signal is split into two channels, left and right. One speaker will play the left signal (channels C and A) and the other speaker will play the right signal (channels D and B).

Option 1: One 4-ohm or 8-ohm speaker connected to each channel.
A technical connection diagram illustrating a four-channel stereo speaker configuration wired to the rear terminal panel of an audio amplifier: Amplifier Output Terminals: Four green 2-pin Euroblock connectors are positioned across the top rear panel, labeled from left to right as + CH D - (RIGHT), + CH C - (LEFT), + CH B - (RIGHT), and + CH A - (LEFT). Surrounding panel features include RCA inputs labeled AUX and REC on the far left, and an AC power inlet labeled AC115V 60Hz on the far right. Stereo Channel Connections: CH D (Right): Red positive (+) and black negative (-) wires connect the + CH D - (RIGHT) terminal block to speaker R / CH D. CH C (Left): Red positive (+) and black negative (-) wires connect the + CH C - (LEFT) terminal block to speaker L / CH C. CH B (Right): Red positive (+) and black negative (-) wires connect the + CH B - (RIGHT) terminal block to speaker R / CH B. CH A (Left): Red positive (+) and black negative (-) wires connect the + CH A - (LEFT) terminal block to speaker L / CH A. Speaker Units: Four identical speakers highlighted in blue boxes are aligned along the bottom, designated left to right as R / CH D, L / CH C, R / CH B, and L / CH A.
Option 2: Two 8-ohm speakers, in parallel, connected to each channel.
the rear terminal panel of an audio amplifier: Amplifier Output Terminals: Four green 2-pin Euroblock connectors across the top panel are labeled from left to right as + CH D - (RIGHT), + CH C - (LEFT), + CH B - (RIGHT), and + CH A - (LEFT). Surrounding panel elements include AUX and REC RCA input ports on the far left, and an AC power inlet labeled AC115V 60Hz on the far right. Parallel Stereo Connections: CH D (Right): Red positive (+) wire splits to connect to two speakers in parallel; black negative (-) wire splits to connect to both speakers in the R / CH D group. CH C (Left): Red positive (+) wire splits to two speakers; black negative (-) wire splits to both speakers in the L / CH C group. CH B (Right): Red positive (+) wire splits to two speakers; black negative (-) wire splits to both speakers in the R / CH B group. CH A (Left): Red positive (+) wire splits to two speakers; black negative (-) wire splits to both speakers in the L / CH A group. Speaker Units: Eight total speakers arranged in four paired groups highlighted in blue boxes along the bottom, labeled left to right as R / CH D, L / CH C, R / CH B, and L / CH A.

 

Bluetooth

Controlled from the unit, the remote control, or your device.

Pairing:

  1. Turn the unit on and set the input selector knob to MP3/BT. Ensure that the INPUT and CH Volume knobs are turned up. Now, push the MODE button to enter pairing mode. The LCD screen will read DISCONNECTED with the Bluetooth logo immediately below it.
  2. On your Bluetooth device (i.e. Smartphone, Tablet, Computer); Locate and select RPA40BT on your list of available Bluetooth connections.
  3. Upon successful pairing, the LCD screen will read CONNECTED with the Bluetooth logo immediately below it.
  4. To unpair, disconnect via your BT device’s BT control panel. The unit will remember the last paired device.
    • To force disconnect all paired devices, press and hold the MENU/RECORD button for 5 seconds.

Playback:

  • Play/Pause: Press once to play current track; press again to pause.
  • Previous/Vol–: Press this key to return to the previous track. Press and hold to lower the volume.
  • Next/Vol+: Press this key to proceed to the next track. Press and hold to raise the volume.

Please Note: Bluetooth audio volume can be controlled via your Bluetooth device, or via the Previous/Vol– and Next/Vol+ buttons on the RPA40BT (as described above). The INPUT VOL knob, and the Channel Volume knobs on the RPA40BT must be set separately as they work independently of the Bluetooth audio volume. 

 

USB/SD

  1. Set the input selector knob to MP3/BT. 
  2. Ensure that the INPUT and CH volume knobs are turned up enough to hear. 
  3. Plug a USB thumb drive into the USB port or an SD card into the card reader on the front panel. 
  4. The unit will automatically begin to play music stored on the external device.

Playback:

Controlled from the unit or the remote control...

⚠️Connecting a USB drive or SD card will override other MP3 input modes.

Formatting may not be necessary, but if you do so, do not use NTFS format (FAT32 recommended as per Formatting Section below). 

  • Play/Pause: Press once to play current track; press again to pause.
  • Previous/Rewind: Press this key to return to the previous track. Press and hold to rewind the current track. Rewind is not available on the remote.
  • Next/Fast-Forward: Press this key to proceed to the next track. Press and hold to fast-forward the current track. Fast-forward is not available on the remote.
  • Volume: Volume is controlled via the INPUT VOL knob and the channel volume knobs.
    • Please Note: These controls must be set separately as they work independently of each other.

**Supported File Formats: MP3, WMA, MAV, FLAC, and APE.

Folder Menu/Record Function:

  • Press the MENU/RECORD button to enter the folder menu (USB and SD mode only).
    • Use the Previous & Next buttons to cycle through files and/or folders. 
    • Press the Play/Pause button to select a file or enter a folder.
  • Press and hold the MENU/RECORD button for 1 second to begin recording the RPA40BT’s current output onto your USB thumb drive or SD card. 
    • Press the MENU/RECORD button again to stop recording. 
    • Press and hold MENU/RECORD for 5 seconds to force disconnect any paired BT device.

Formatting:

*For any issue issues with USB Thumb Drive or SD Card Playback/Recording...
Please follow these formatting instructions to ensure audio/device compatibility:

  • Insert your 32GB or less(may not be compatible with larger) USB Thumb Drive(available USB port needed) or SD Card(available SD slot or external card reader needed) into a computer.
  • Right-Click: USB Thumb Drive or SD Card Icon.
  • Select: Format Device
  • It will ask for Format Type...Select FAT32.

**For USB Thumb Drive or SD Playback...
Make sure all music loaded on is MP3, WMA, WAV, FLAC or APE file format.
To cover audio to MP3, WMA, WAV, FLAC or APE:

  • Mac: Look for iTunes MP3 conversion option in dropdown menus.
  • PC: Look for iTunes MP3 conversion software available to download or websites that allow you to upload files to be converted.
    connecting a USB drive or SD card will override other MP3 input modes. 

 

AUX

Use the RCA AUX in audio inputs to connect line-level sources such as TVs, digital set-top boxes, DVD/Blu-ray disc players, gaming consoles, laptops, MP3 players, cell phones, tablets, etc. Mono audio sources can be connected using an RCA Y-cable connector.

Make sure that the input selector knob is set to AUX. All playback functions are controlled via your source device. Volume is controlled via your device, the INPUT VOL knob, and the channel volume knobs. 
Please Note: these controls must be set separately as they work independently of each other.

 

Optical

Many TVs, projectors, digital set-top boxes, DVD/Blu-ray disc players and gaming consoles have an optical (fiber optic) output. To connect your device to the RPA40BT using the optical input, follow the steps below.

  1. Use a digital optical audio cable to connect the sound source to the RPA40BT's OPT input.
  2. Set the RPA40BT's Input Source knob to OPT. 
  3. Ensure that the INPUT and CH volume knobs are turned up as needed to hear.
  4. Adjust your TV’s audio settings (if experiencing Optical audio issues):
    • If using TV, projector or other video device with internal speakers; Set the TV / Internal speakers to OFF.
    • Select PCM mode in the digital audio output settings of the TV, projector, digital set-top box, DVD/Blu-ray disc player, gaming console or other video device.

 

FM Radio

Controlled from the unit or the remote control.

  1. Set the input selector knob to MP3/BT. 
  2. Ensure that the INPUT and CH volume knobs are turned up enough to hear.
  3. Press the MODE button until the LCD display indicates you are in FM radio mode.
  4. Make sure the antenna is up and fully extended for best reception.
  5. Press and hold the Play/Pause button to automatically scan and save all available stations.
  6. Use Previous and Next to cycle back through the saved stations, 
  7. Press and hold Previous and Next to lower and raise the FM Radio volume from the RPA40BT. 
    • The remote control, the INPUT VOL knob and the channel volume knobs will also control volume. 
    • While the remote control and Previous/Next buttons on RPA40BT are synchronized, the INPUT VOL knob and the channel volume knobs work independently so they must be set separately.

 

Mic Connections, Volume & Echo

  • Connect a wired microphone (not included) or wireless mic receiver (not included) to one of the ¼˝ mic jacks.
  • Mic Volume: Use the knobs marked MIC 1 VOL and MIC 2 VOL independently control each mic’s volume.
  • Echo: This vocal effect adds a series of reverbs and delays (repeated, decaying echoes) to the voice / microphone. 

 

Features/Specs

  • 1000W 4 Zone/Channel Home Stereo Bluetooth Amplifier/Receiver

  • 4 Independent channels/zones/rooms/rooms each with volume control

  • 4 Mono zones/rooms or 2 Stereo zones/rooms

  • RMS Power: 4 x 62.5W @ 4 Ohms/4 x 40W @ 8 Ohms

  • Peak Power: 4 x 250W @ 4 Ohms/ 4 x 160W @ 8 Ohms

  • Built-in Bluetooth with 35 foot range

  • Rear RCA input

  • Rear Optical input

  • Rear RCA output for a powered sub or adding another amplifier

  • 4 sets of oversized detachable speaker terminals (Euro-block plugs)

  • Two ¼″ Mic Inputs on front panel

  • USB and SD inputs

  • Record output to mixer or recording device

  • Bass and treble control knobs

  • FM Radio Tuner with Presets & Auto-Scan

  • Built-in Pre-Amplifier

  • Preset EQ for Bluetooth/USB/SD (2 band EQ for other inputs)

  • Remote control for MP3 module only (does not control zone volume)

  • Variable speed cooling fan

  • Input Sensitivity: 300mv/20k Ohm

  • Frequency Response: 20Hz – 20kHz

  • Signal to Noise Ratio: 60dB

  • Tone Characteristic: 100Hz – 10kHz ±12dB

  • THD: > 0.1%

  • Dimensions in inches (W x D x H): 11.97″x 11.4″ x 3.86″

  • Weight: 13.23 lbs

 

Troubleshooting

Problem

Solution

No power1. Make sure the unit is plugged in and the power switch is in the ON position.
2. Check that the power cable is properly plugged into the wall socket.
3. Check and replace the fuse if necessary.
4. If people or equipment tend to step and roll over or stretch your power cable, it can get damaged. Check the power cable for damage. If the cable is damaged, discontinue using the unit until the cable can be repaired.
No sound/low sound/distorted sound1. Check that all appropriate cables and wires are plugged in correctly.
2. Check the INPUT VOL knob, the Microphone volume settings, the MP3 module volume (Bluetooth and FM radio mode), and the independent channel volume settings.
3. Check the volume settings on your input devices.
4. If using wall volume controls, be sure the volume is set properly.
5. Make sure the proper input source is selected.
6. Make sure you are using the proper type of speakers.
7. Make sure speakers are wired correctly (plus to plus, minus to minus; not plus to minus or vice versa).
8. Make sure the speakers’ power ratings match the amplifier’s.
Buzzing sound1. Make sure you are using the proper cable. Check the requirements of the connected gear and the inputs on the amplifier and make sure you are using the appropriate cable. This unit’s ¼˝ mic outputs are TS (unbalanced) so you will need a TS mic cable.
2. For line inputs be sure to use high quality RCA cables.
Mic feedback or poor sound1. Point mics away from any nearby speakers.
2. Make sure the microphones are on and the volume controls are properly set.
3. Make sure the microphone cables are properly connected and that you are using good quality TS mic-specific cables.
Bluetooth pairing fails1. Check to see that both devices are turned on and that your Bluetooth device is discoverable.
2. Turn both devices off and then on again.
3. Make sure you’ve selected the proper source.
4. Make sure that the Bluetooth device is within 5 feet of the unit.
5. Move both devices away from other Bluetooth devices.
6. Make sure that the unit is not paired to a previously paired device.
No USB playback1. Make sure you’ve selected the proper source.
2. Make sure that the audio files are in the specified format: MP3, WMA, WAV, FLAC, and APE
3. Make sure the USB drive is not formatted in NTFS format.

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