Rockville RPA14 User manual

7000-WATT PRO RACK AMPLIFIER
OWNER’S MANUAL
RPA14

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Thank you for purchasing this Rockville product. Please read this installation guide carefully for proper use of your Rockville RPA14 7000-Watt
Pro Rack Amplier. Should you need technical assistance please call our technical help line at 1-646-758-0144, Monday through Friday, 9am to
5pm EST.
IMPORTANT SAFETY INSTRUCTIONS
TO REDUCE THE RISK OF ELECTRICAL SHOCK, NEVER OPEN THE UNIT. NO USER SERVICEABLE PARTS INSIDE.
WE RECOMMEND TAKING THE UNIT TO A QUALIFIED SERVICE TECHNICIAN 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.
• Make sure cooling fan vents are free of obstructions.
• Replace fuse with one of the same type, size, and rating only.
• Do not attempt to operate this unit if the power cord has been frayed or broken.
• Do not attempt to break o or remove the ground prong. This prong is used to reduce the risk of electrical shock and re in case of an internal short.
• Do not operate this unit if it is damaged.
• This unit is intended for indoor use only.
• During long periods of non-use, disconnect the unit from power source.
• 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 upon or against them, paying particular attention to
the point of exit from the unit.
• To avoid unnecessary wear and to improve the unit’s lifespan, unplug the unit when not in use for extended periods of time.

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1. Power On/Off Switch.
2. Channel A Signal Level Adjustment Knob: Controls the level of incoming signal. The actual voltage attenuation of the amplier is shown in
decibels. Turn the knob counterclockwise if the Clip LED remains on for more than 5 seconds (indicating the input signal is too strong).
3. Channel A LEDs:
Clip - Indicates that the amplier’s output is within 3dB of clipping. Occasional blinking is acceptable, but if it remains on for more than 5
seconds you should turn down the level controls or reduce the output level of the input source to avoid audible distortion.
Signal - Indicates that there is an input signal greater than 100mV.
Protect - Indicates that the output connection is shorted, the load impedance is too low, or there is an internal malfunction.
On - Indicates the power is turned on.
4. LCD screen displays signal level and temperature for each channel.
5. Channel B LEDs: See item 3 above.
6. Channel B Signal Level Adjustment Knob: See item 2 above.
7. Ventilation
Features
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1. Channel A /B XLR Link Out
2. Channel A /B XLR /¼˝ TRS / TS combo inputs
3. Channel B Binding Post/Banana Plug outputs
4. Channel A /B Binding Post/Banana Plug bridged output
5. Channel A Binding Post/Banana Plug outputs
6. User serviceable fuse compartment (20A/250V)
7. Mode switch: stereo/parallel/bridged
8. Crossover switch: bypass/80Hz/160Hz
9. Built-in automatic variable-speed high-velocity cooling fan
10. Channel A /B Speakon outputs
11. AC 120V/50 – 60Hz power input
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Rack Mounting
The RPA14 was designed for standard 19˝ rack mounting and requires 2U rack space. Use the included heavy-duty rack mount ears, 4 screws,
and 4 washers for mounting to the front rack rail. 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. Be sure to support the rear of the amp, especially for mobile use
where it will be subjected to strong vibrations. The RPA14 can also be “stack” mounted without a cabinet.
Setup

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Set the switch to BYPASS when using full-range speakers.
Set the switch to SUB 80Hz or SUB 160Hz when using subwoofer(s). This will allow frequencies below
80Hz or 160Hz only.
In STEREO mode the amplifier is fed a full-range signal and outputs a specific left and right signal. Each
channel is fully independent and has a separate level control. Make sure the speakers’ impedance is no
less than 4 ohms.
In PARALLEL mode the channels are connected internally. On the RPA14 Channel A is the dedicated input
for use when in this mode. The signal input to Channel A will feed a mono signal to both channels. Each
channel has a separate level control.
In BRIDGED mode, the amplfier operates as a one channel mono amp. The power from both channels is
combined into one channel. As with parallel mode, the channels are connected internally and Channel A
is the dedicated input. The signal input to Channel A will feed a mono signal to the positive binding post
output terminals of each channel. The Channel B positive output is connected to the negative input of
your speaker. The Channel A positive output is connected to the positive input of your speaker. This mode
is primarily used when connecting subwoofers.
Configurations
Crossover and Mode Switches

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Stereo
Make sure the switch is
set to STEREO
Make sure the switch is
set to BYPASS
Mixer

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Parallel (mono to speakers)
Mixer
Connect input cable to
Channel A.
Make sure the switch is
set to PARALLEL
Make sure the switch is
set to BYPASS

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Mixer
Connect input cable to
Channel A.
Make sure the switch is
set to PARALLEL
Make sure the switch is set to
SUB 160Hz (allows for frequencies
of 160Hz and below) or SUB 80Hz
(allows for frequencies of 80Hz
and below).
Parallel (mono to passive subwoofers)

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Bridged (mono)
Make sure the switch is
set to BRIDGED
Make sure the switch is set to
SUB 160Hz (allows for frequencies
of 160Hz and below) or SUB 80Hz
(allows for frequencies of 80Hz
and below).
Connect the output
cable from the mixer
to Channel A.
Mixer

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These set ups allow you to use the RPA14’s XLR Link Out ports to send the full range signal from the main amp to a secondary amp (diagram
A) or directly to a powered sub (diagram B).
Make sure the MODE
switch is set to STEREO
Make sure the MODE
switch is set to STEREO
Make sure the MODE
switch is set to STEREO
Make sure the CROSS-
OVER switch is set to
BYPASS
Make sure the CROSS-
OVER switch is set to
BYPASS
Make sure the CROSS-
OVER switch is set to
BYPASS
Mixer
DIAGRAM A
DIAGRAM B
Mixer
Link Out XLR

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• LCD displays the volume in dB per channel and the operating temperature
• 2U rack space
• Built-in limiter protects your speakers from distortion and clipping
• Bridged mode allows you to combine both channels’ power into one channel for use with a subwoofer
• Stereo mode is perfect for (2) speakers or (4) speakers in a left and right conguration
• Parallel mode gives you dual mono output signals, which is perfect for monitor use when you want all sounds coming out of each speaker
instead of a L/R conguration
• Built-in crossover switch (bypass, 80 Hz, 160 Hz) allows amp to be used with full-range PA speakers or Subwoofer(s)
• Channel A & B Clipping Led Indicators
• Channel A & B Separate Level Controls
• Power, signal, clipping, and protection LED indicators on front of amp
• Heavy-duty rack mount ears with handles
• Built-in variable-speed high-velocity quiet cooling fan
• Maximum headroom for 4-ohm and 8-ohm speakers
• Input Terminals: Combo jack (XLR and ¼˝) A & B inputs
• Output Terminals: Banana binding post speaker output, Speakon output, XLR output (to connect another amplier or powered sub)
• Level controls for precise setting and matching of sensitivity
• Computer controlled IC protection circuitry against speaker short circuit, thermal over load, DC over load
• User serviceable fuse (20A, 250V)
• RMS Power Output: Stereo 8 Ohm: 2 x 700W
Stereo 4 Ohm: 2 x 1000W
Bridged 8 Ohm: 1 x 2000W
• Peak Power Output: Stereo 4 Ohm: 2 x 3500W Max
Bridged 8 Ohm: 1 x 7000W Max
• Frequency Response (bandwidth @ 2Vrms out, @ -3.0dB) 10Hz – 30Khz
Features/Specifications

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• THD + Noise @ 1Khz full power: <0.03%
• Input Impedance: 10K Ohm Balanced
• Input signal voltage: 660mV – 1.5V
• Input sensitivity: 0.7v
• Damping factor: (100Hz, 10w, 4 ohms): 43.4
• Damping factor: (1KHz @ 8 ohms): >400:1
• Effective damping factor (100Hz, 10w, 4 ohms) 1.08
• Output impedance at speaker terminals: 0.09214 ohms
• Frequency Response vs THD+N (worst case, across normal bandwidth 1W) 0.6%
• Signal to Noise Ratio: >100dB
• IMD 60Hz & 1KHz, 4:1: <0.04%
• SLEW RATE (input lter limited): 40v/uS
• Power Requirements: 120V/50 – 60Hz
• Weight: 28.7 lbs
• Dimensions: 19.09 x 16.93 x 3.35 inch

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Troubleshooting
PROBLEM
No sound
Clipping light
is on
No power 1. 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 on 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.
1. Check that all appropriate cables and wires are plugged in correctly.
2. Check the channel level settings.
3. Check the volume settings on your input devices.
4. Check mixer’s master and input volumes.
5. Make sure you are using the proper cables.
6. Make sure speakers are connected to the amp’s OUTPUT, not INPUT.
7. Make sure mixer is connected to the amp’s INPUT, not OUTPUT.
8. Make sure the mixer’s mute isn’t on.
1. Turn down signal level controls (gain).
2. Check impedance of speakers or subs.
SOLUTION

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