Rockville RCS80-1

19" Rack Mountable 60-Watt Commercial 70-Volt Receiver/Amplifier

Important Safety Instructions

To reduce the risk of electrical shock, never open the unit. 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.
• Do not attempt to break off or remove the ground prong. This prong is used to reduce the risk of electrical shock and fire in case of an internal short.
• Do not operate this unit if it is damaged.
• This unit is intended for indoor use only.
• 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

Rockville is proud to introduce the first commercial amplifier in our new RCS series of products. The RCS80-1 is a 60-watt, single zone, rack mountable digital hybrid amplifier/receiver. This amplifier is capable of 70-volt, 100-volt, 16-ohm, 8-ohm, and 4-ohm applications. This makes it perfect for use in a restaurant/bar/café/lounge/school/conference room or any other setting where multiple speakers are needed. With the dual mic inputs you can use this amplifier for announcements, speeches, or even for Karaoke night! The RCS80-1 features Bluetooth audio streaming, so you can play your favorite music or access a playlist right from your phone! This amp also features both USB and SD inputs, allowing you to play audio stored on a USB thumb drive or SD Card. There are also 2-line inputs that allow you to plug in another audio device such as an MP3 player, CD player, TV, etc. Individual volume knobs for two microphones, MP3, and line inputs allow for full and autonomous control of this amplifier. The built-in cooling system in this amplifier will keep the components cool, making the amplifier durable and reliable.

Our goal with the RCS series was to make it possible for anyone to install 70-volt systems on their own without spending thousands of dollars on a contractor. This model makes it a breeze to connect many speakers and multiple external sources. We intentionally use common plugs like RCA and 1/4" on our model to make this more universal and user friendly. With our unique design you can feel confident in your DIY ability when installing our commercial system!

What is 70 Volt?

70-volt systems are the number one choice for any application where you want to install multiple speakers. With 70 volt there are a lot of advantages over 8-ohm systems. One of the main advantages is the simplicity of the wiring as well as how easy it is to match up speakers with the amplifier. For example, with this 60-watt/70-volt amplifier, you can install speakers that total close to 50 watts. It does not matter if it is 10 speakers that are 5 watts each or 20 speakers that are tapped at 2.5 watts each. You always want your 70-volt amp to have at least 15 to 20% more power than the combined watts your speakers are tapped at. When we say the word tap, what we are referring to are the selectors that many speakers in 70 volt have on them. For example, some speakers might have selectable options of 1.5w, 3w, 5w, 10w. What this does is limit how many watts the built-in transformer on the speaker will allow the speaker to get from the amplifier. What this allows for is full customization of your sound for your space. In a restaurant, for example, you can tap your dining room speakers at 5 watts, the speakers by the bar area at 10 watts, the ones in the hallway at 3 watts, and the speakers in the bathrooms at 1.5 watts.

Another great feature with 70 volt is you can mix and match any 70-volt speakers whether they are ceiling speakers, wall mounted speakers, subwoofers, etc.

70-volt systems allow you to run very long lines of speaker wire without signal loss. This makes it ideal when running long speaker leads.

The wiring is simple. You just wire all the positive terminals of the speakers to the positive 70-volt terminals of the amplifier. The negative terminals on the speaker simply get wired to the negative terminals on the amp. You do not have to worry about impedance. The power is constant.

Functions

1. Power: ON/OFF Switch
2. LCD Display: This screen shows the input mode selected (FM Radio, USB/SD or Bluetooth). 
3. SD Input: Accepts FAT or FAT32 formatted 32 GB or less standard SD Cards.
4. Mode Button: Switch between USB/SD, Bluetooth and FM Radio. 
5. USB Input: Accepts FAT or FAT32 formatted 32 GB or USB Thumb Drives.
6. Playback Controls (for USB/SD, Bluetooth and FM Radio):
   • Volume⇩ / |◀◀ (Previous) - Long press to decrease volume. Short press for previous track (USB/SD/BT mode) or previous preset station (FM mode). 
   • ⏯ (Play/Pause) - Press once to play/pause music. In FM mode, short press to initiate auto scan. All available stations will be stored to presets.
   • Volume⇧ / ▶▶| (Next) - Long press to increase volume. Short press for next track (USB/SD/BT mode) or next preset station (FM mode).
7. Repeat Button (for USB/SD and Bluetooth): Press once to repeat a single track. Press twice to repeat all tracks. Press three times to repeat all files within a folder (USB/SD only). Press four times to enter random mode. Press and hold to force disconnect all paired Bluetooth devices.
8. EQ Presets (USB/SD, Bluetooth and FM Radio only): Select from Normal, Rock, Pop, Classic, Jazz and Country.
9. Talkover: Gives priority to Mic Input 1. Input signal from Mic 1 will override all other input signals. 
10. Mic 1: Connect microphones using 1/4" TS cable connection(TRS not recommended). 
11. Output Signal Level Indicator LEDs
12. Independent Mic Volume Controls
13. MP3 Module Volume Control (for USB/SD, Bluetooth and FM Radio)
14. Line Input Volume Controls: Controls levels for Line 1 and Line 2 RCA Inputs (Item 18)
15. Bass & Treble: This 2-Band EQ controls the overall bass and treble levels of all output.

16. FM Antenna: Move wire antenna around to find optimal location for FM Radio reception.
17. Mic 2: Connect microphones using 1/4" TS cable connection(TRS not recommended). 
18. RCA Line Inputs: Use these jacks (2 sets) to connect line level audio devices (i.e. Blu-ray / DVD Player, Wifi Media Player, Audio Mixer).
19. RCA Line Output: Use these jacks to connect a subwoofer, additional audio amplifier or other device with line input.
20. 100V Speaker Output Terminal: Output connections for 100-Volt speakers with raw speaker wire.
21. 70V Speaker Output Terminal: Output connections for 70-Volt speakers with raw speaker wire.
22. 4-16Ω Speaker Output Terminal: Output connections for 4 to 16-ohm speakers with raw speaker wire.
23. COM Terminal: Output connections for common ground or negative speaker wire connection.
24. Cooling Fan
25. AC 110V/60Hz Power Input

26. User Serviceable 2A/250V Fuse Compartment: Check and replace (if necessary) the 2-Amp 250-Volt 5x20mm Fast Blow Fuse.

     

Remote Control

⚠️This remote only controls the USB/SD, Bluetooth and FM Radio functions within the MP3 Module Section.

1. Power: ON/OFF Switch
    
2. Mode: Select USB/SD, Bluetooth, Optical or FM radio.
    
3. EQ Presets: Select from Normal, Rock, Pop, Classic, Jazz and Country.
    
4. Mute
    
5. VOL-/VOL+: Increase or decrease the volume.
    
6. Play/Pause: Press to play or pause playback. Press for two seconds to auto-scan and save stations in FM radio mode.
    
7. |◀◀ / ▶▶|: Previous/Next song
    
8. REP: Press once to repeat single track. Press twice to repeat all tracks. Press three times to repeat all files within a folder. Press four times to enter random mode.
    
9. U/SD: Press to switch between USB and SD input.
    
10. Number Pad: Select music files by number.
     

Setup

Selecting Output Wire and Connectors

It is recommended you use high quality 2 or 4 conductor, CL2 or CL3 rated, 100% Oxygen-Free Copper (OFC) speaker wire. CL2 and CL3 ratings refer to the cable jacket's fire resistance and the voltage capacity of the wire. While both cables have the same flame resistance capability, the CL2 cable can handle voltage spikes of up to 150 volts while the CL3 can handle up to 300 volts. When using the 70V/100V speaker output screw connectors, use terminal forks up to 10 AWG (recommended) or bare wire. Below is a chart to help you select the appropriate size wire based on the amp to speaker distance.

⚠️ Never use shielded cable for output wiring.
⚠️ Check local code requirements before installing in-ceiling or in-wall speaker wires. 

Mic Input Cables

There are two 1/4" balanced TS mic inputs on the RCS80-1. We recommend you use shielded a cable with a 1/4" TS (Tip Sleeve) connection. Using a 1/4" TRS (Tip Ring Sleeve) connection with the RCS80-1 Mic Inputs can actually cause signal loss, giving you lower sound levels from the microphone. 

Line Input Cables

The RCS80-1 features two RCA line inputs and one RCA line output. We recommend you use high quality Rockville cables like the RNRTR Series(TRS-1/4" to Dual RCA), RNRMR Series(3.5mm to Dual RCA), RMDPR Series(Dual 1/4" to Dual RCA)  or RCDR Series(Dual RCA to Dual RCA) RCA cables.

Rack Mounting

This unit should be on the bottom of the rack or above any equipment that does not produce heat. Be sure to provide at least 1 RU (Rack Unit, 1.75") of space above and below. Preferably, the side wall should be at least 2" from the sides of the amplifier and the back of the rack should be open. This will ensure a source of cool air to all sides of the amplifier.

Connections

The RCS80-1’s 70V and 100V connections can be set up in a variety of ways. Please note that utilizing 70/100-volt connections and 4 to 16-ohm connections simultaneously is not recommended and will cause damage to the amplifier and the speakers.

70V/100V Speaker Output

You may connect any number of speakers to the 70 or 100 volt speaker output as long as the total wattage does not exceed 50 watts. Best practice is to allow for about 15 to 20% "head room" or extra power to handle any unusual amp requirements such as a deep bass note or a booming finale.

Multi-Speaker 70V Connection

Multi-Speaker 100V Connection

⚠️ Do not use 8-ohm or 4-ohm speakers. Only use speakers with built in 70-volt or 100-volt transformers.

⚠️ Do not use 70-volt and 100-volt connections at the same time. Doing so will cause permanent damage to the amp.

4 to 16-Ohm Speaker Output

You can connect two speakers to this terminal as long as the final impedance does not fall below 4 ohms. Although it is possible to connect more than two speakers to these terminals, it is not recommended. Please consult a professional if you intend to do so as incorrect installation could lead to irreparable damage to your amp and speakers.

4-Ohm Speaker Connection (wired in series)

8-Ohm Speaker Connection (wired in parallel)

⚠️ Total impedance of your speakers must not be less than 4 ohms.

CAUTION: We recommend you consult a professional if you plan on wiring more than 2 speakers to the 4 to 16-ohm output.

Operation

Bluetooth Pairing

To connect your iPod, iPhone, MP3 player, Android phone or any other Bluetooth-capable device, follow these steps:

1. Make sure the RCS80-1 unit’s power switch is in the ON position.
2. Turn on the Bluetooth feature on your device and ensure that it is in "discoverable" mode.
3. Push the Mode button on the unit until you are in Bluetooth mode (LCD screen will display the word "bLUE").
4. Once in Bluetooth mode, the unit should automatically pair with your device. If not, look for "RCS80-1" on your device and select it.
5. If pairing is successful, you will hear a tone. Please note, the unit will remember the last paired device. Press and hold the REPEAT button for 5 seconds to force disconnect all paired devices.

Bluetooth Playback

• Playback may also be controlled from your Bluetooth device.
• You can control playback from your device or from the MP3 control panel on the RCS80-1:
  • ⏯ (Play/Pause): Press once to play current track, press again to pause.
  • Volume⇩ / |◀◀ (Previous): Long press to decrease volume. Short press for previous track.
  • Volume⇧ / ▶▶| (Next): Long press to increase volume. Short press for next track.
  • MP3 Volume Knob: Controls Bluetooth input volume.

USB/SD

For USB Thumb Drive or SD Playback...
Make sure that the audio files loaded on are MP3, WAV or WMA format.

• Inserting a FAT or FAT32 formatted 32 GB or less USB Thumb Drive (a.k.a. flash drive) or an SD Card into the corresponding port/slot will set the RCS80-1 to USB/SD mode and will automatically begin to play music.
• You can control playback from your device or from the MP3 control panel on the RCS80-1:
  • ⏯ (Play/Pause): Press once to play current track, press again to pause.
  • Volume⇩ / |◀◀ (Previous): Long press to decrease volume. Short press for previous track.
  • Volume⇧ / ▶▶| (Next): Long press to increase volume. Short press for next track.
  • MP3 Volume Knob: Controls USB/SD input volume.

Please note: Inserting a USB drive or an SD card will override FM radio mode and Bluetooth mode.

FM Radio

The wire antenna can be moved around to find optimal location for FM Radio reception.

1. Press the Mode button until you enter FM radio mode.
2. Press the Play/Pause button on the unit to initiate auto scan. The unit will automatically search and store stations.
3. Short press the Previous/Next buttons to navigate through preset stations.

Features / Specifications

• Rockville RCS80-1 60-Watt 19" Rack Mountable Commercial Amplifier/Receiver (removable rack brackets)
• Capable of 70 volt, 100 volt, 16 ohm, 8 ohm, and 4 ohm
• 100-volt RMS Power: 75 Watts
• 70-volt RMS Power: 60 Watts
• 4-ohm RMS power: 80 Watts
• 8-ohm RMS power: 70 Watts
• 16-ohm RMS power: 11 Watts
• Built in Bluetooth wireless audio streaming
• FM radio tuner
• USB input to play audio stored on a thumb drive (32GB max)
• SD card slot to play music stored on an SD Card (32GB max)
• Separate volume control for MIC 1, MIC 2, MP3, LINE 1, LINE 2 inputs
• Bass and Treble controller
• 5 segment signal level indicators
• Talkover function
• 5 EQ presets: Rock, Popular, Classic, Jazz, Country
• Built-in cooling system keeps component cool at all times
• Distortion: <0.5% (1kHz)
• Signal to Noise Ratio: > 79dB
• Power Requirements: 110V/50-60Hz
• Fuse: F2A 250V
• A Weighted Signal to Noise (@ 1W) -79.0dBA
• A Weighted Signal to Noise (referenced to full 4-ohm power) -95.1dBA
• Frequency Response (bandwidth @ 2Vrms out, @ -3.0dB) 8 Ohms <10Hz - 22.8kHz
• Frequency Response vs THD+N (worst case, across normal bandwidth 1W @ 8 ohms) 0.82%
• Weight: 10.03lbs
• Dimensions: 16.9" x 9.45" x 2.76" inches

Troubleshooting