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D4-8/D4-16 Owner's Manual

Keith Harris
Updated

Dual 4˝ Wall Mount Swivel Outdoor Home Patio Speakers

Introduction

Rockville D4-8 and D4-16 are 8 ohm and 16 ohm commercial wall mount speakers. They are a great choice for any restaurant, office, school, retail store, or other commercial application. These speakers will sound great for all your PA announcements and background music.

 

Functions

  1. Metal grill
  2. 1˝ Soft Silk Dome Tweeter
  3. 4˝ Woofer
  4. European-style terminal block (euroblock)
A technical line drawing illustrating the front layout of an oval-shaped speaker housing, cut horizontally to reveal both external and internal components, numbered 1 through 3: 1: Mesh Grille: Perforated protective metal mesh cover spanning the left half of the speaker enclosure faceplate. 2: Tweeter Assembly: Centrally mounted high-frequency tweeter positioned between sculpted acoustic guide baffles. 3: Woofer Driver: Exposed circular low-frequency woofer cone on the right half of the cabinet, secured to the internal housing with four corner screws.
A technical line drawing illustrating the rear casing of the oval Rockville D4-8 speaker housing featuring a central connection panel labeled with callout number 4:Rear Cabinet Casing: Sculpted, contoured rear enclosure showing a mounting notch or passage on the left side and an offset rectangular terminal plate.4: Input Terminal Plate: A rectangular connector panel secured by four corner screws:Brand & Model: Header displays the ROCKVILLE logo at the top and D4-8 model designation.Specifications Text: Printed technical specs list POWER: 50W RMS/200W PEAK, IMPEDANCE: 8 OHM, and FREQ RESP: 55Hz - 200Hz.Wire Terminals: A 4-position Euroblock/Phoenix-style push-terminal socket labeled INPUT with polarity indicators ($+$, $+$, $-$, $-$) marked vertically along the left side.Footer Text: Bottom section displays the website RockvilleAudio.com.

 

 

Connecting the Speakers

These speakers are passive and thus require an amplifier or receiver to give them power. They can be connected to any 4 or 8 ohm amplifier. If your speakers are relatively close to the signal source (50 feet or less), 16 gauge wire can be used. For longer distances, 12 or 14 gauge wire is recommended. Be sure to observe proper polarity by ensuring that the wire from the positive speaker terminal is connected to the red or positive terminal of the signal source and that the wire from the negative speaker terminal is connected to the black or negative terminal of the signal source.

 

Setup

8-Ohm Speaker Configurations:

2 Speakers (1 Per Channel) Connected to an Amplifier with 8-Ohm Output

A technical wiring line drawing illustrating a basic two-channel speaker setup connected to an audio receiver or amplifier: Amplifier / Receiver (Top): Simplified front schematic of a audio receiver showing vertical vent lines, rotary control knobs, and button indicators along the front panel. Left Speaker Connection: A line connects from the receiver's positive output terminal to a circled + symbol above the top-left port of the left oval speaker. A line connects from the receiver's negative output terminal to a circled - symbol below the bottom-left port of the left oval speaker. Right Speaker Connection: A line connects from the receiver's positive output terminal to a circled + symbol above the top-left port of the right oval speaker. A line connects from the receiver's negative output terminal to a circled - symbol below the bottom-left port of the right oval speaker. Speakers (Bottom): Two horizontally positioned oval speakers with mesh grilles side-by-side receiving the stereo positive and negative lead connections.

 

16-Ohm Speaker Configurations:

4 Speakers (2 Per Channel) Connected to an Amplifier with 4-Ohm Output

A technical wiring line drawing illustrating a four-speaker parallel configuration connected to a two-channel audio receiver or amplifier: Amplifier / Receiver (Top Center): Simplified front schematic showing ventilation slots, small control buttons, and a volume dial on the front panel. Left Channel Pair (Bottom Left): Two oval speakers arranged side-by-side on the left side. Positive Connections: A line runs from the receiver's left positive output to a circled + symbol, splitting to connect to the top positive terminal of both left-side speakers in parallel. Negative Connections: A line runs from the receiver's left negative output to a circled - symbol, splitting to connect to the bottom negative terminal of both left-side speakers in parallel. Right Channel Pair (Bottom Right): Two oval speakers arranged side-by-side on the right side. Positive Connections: A line runs from the receiver's right positive output to a circled + symbol, splitting to connect to the top positive terminal of both right-side speakers in parallel. Negative Connections: A line runs from the receiver's right negative output to a circled - symbol, splitting to connect to the bottom negative terminal of both right-side speakers in parallel.

 

8 Speakers (4 Per Channel) Connected to an Amplifier with 4-Ohm Output

Short Alt Text (Recommended) Wiring schematic showing eight oval speakers connected in parallel across two channels (four speakers per channel) to a receiver amplifier. Detailed Description (For extended accessibility captions) A technical wiring line drawing illustrating an eight-speaker parallel configuration connected to a two-channel audio receiver or amplifier: Amplifier / Receiver (Top Right): Simplified front panel schematic featuring ventilation slots, small control buttons, and a volume dial. Left Channel Group (Bottom Left): Four oval speakers lined up horizontally on the left side. Positive Wiring: A single line extends from the receiver's left positive output to a circled + symbol above the rightmost speaker in the group, running parallel along the top to connect to the positive terminal of all four speakers. Negative Wiring: A single line extends from the receiver's left negative output to a circled - symbol below the rightmost speaker in the group, running parallel along the bottom to connect to the negative terminal of all four speakers. Right Channel Group (Bottom Right): Four oval speakers lined up horizontally on the right side underneath the receiver. Positive Wiring: A single line extends from the receiver's right positive output to a circled + symbol above the far-right speaker, running parallel along the top to connect to the positive terminal of all four speakers. Negative Wiring: A single line extends from the receiver's right negative output to a circled - symbol below the far-right speaker, running parallel along the bottom to connect to the negative terminal of all four speakers.

 

Installation

Tools Needed: 

  • Drywall Knife 
  • Drill
  • Drill Bits – 3/16˝ and 1/4˝
  • Allen Wrench
  • Wire Strippers
  • Ladder

These speakers can be mounted horizontally or vertically and can be installed on a variety of surfaces. When mounting horizontally, make sure to place the mounting bracket at a height that will allow the front of the speaker to be tilted towards the listening area. Please note, the bracket must be assembled prior to mounting. Refer to the included detailed mounting diagram for bracket assembly and mounting instructions.

 

Features/Specifications

  • Weather resistant with rugged ABS cabinet is perfect for outdoor patio or indoor use
  • Curved cabinet design for better sound coverage with an 80° x 120° dispersion
  • Dual swivel mounting bracket supports vertical swivel and horizontal swivel
  • Polypropylene Cone
  • Rubber Surround
  • (2) 4˝ Woofers
  • 1˝ Kapton Voice Coil
  • 1˝ Soft Silk Dome Tweeter
  • 9.75 oz. Ferrite Magnets
  • Detachable Euro-Block terminals with quick disconnect
  • Built in 12dB/Octave crossover with dynamic speaker protector
  • Crossover details: 2nd order/2500Hz rolloff
  • Impedance: Available in 8 ohm or 16 ohm
  • Frequency Response: 55Hz – 20kHz
  • Sensitivity: 88dB @ 1w/1m
  • Available in black or white
  • Dimensions in inches: 12.05˝ x 6.6˝ x 8.7˝
  • Weight: 6.4 Lbs

 

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