Cerwin Vega Car Amplifier CV 5000 User Manual

CV-5000  
HEAVY DUTY PROFESSIONAL AMPLIFIER  
USER MANUAL  
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TABLE OF CONTENTS  
Introduction ……………………………………………..... 4  
Features ………………………………………………….. 5  
Front Panel Controls …………………………………...…. 6  
Rear Panel Controls ………………………………………. 8  
Protection ……………………….……………………....... 10  
Setup ………………………………..…………………… 11  
Connections …………………………………………..….. 13  
Wiring…………………………………………………….. 15  
Specifications…………..........……………………………. 17  
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INTRODUCTION  
Thank you for your decision to purchase Cerwin-Vega’s innovative new CV Series  
professional power amplifier! Engineered for superior sound reproduction, the CV  
Series line of professional amplifiers deliver top quality audio at an affordable price.  
The CV Series offers a standard of reliability and efficiency that makes them the  
perfect solution for every DJ, musician, and sound engineer. Welcome to a new level  
of professional quality sound performance!  
UNPACKING AND INSTALLATION  
Although it is neither complicated to install nor difficult to operate your amplifier, a  
few minutes of your time is required to read this manual for a properly wired  
installation and to become familiar with the amp’s features and how to use them.  
Please take care in unpacking your amp and do not discard the carton and other  
packing materials. They may be needed when moving your amp, and are required if it  
ever becomes necessary to return the unit for service. Never place the unit near a  
radiator, in front of heating vents, in direct sun light, in excessive humidity, or dusty  
locations to avoid damageto the amp and to guaranty it lives a long and reliable life.  
Connect your amp according to the description on the following pages.  
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FEATURES  
The CV-5000 amplifier delivers the following power ratings.  
2 x 1100 Watts at 8 ohm, 2 x 1800 Watts at 4 ohms and 2 x 2500 Watts at 2  
ohms  
2-channel, parallel or bridged mono operating modes for flexible application -  
5000 Watts  
…and the following features.  
Independent limiters for each channel reduce distortion.  
Independent input level controls for each channel allow precision  
adjustments.  
Precise signal and clip LED indicators to monitor performance, allow you to  
correct for overloading (clipping) condition.  
Low-frequency filters (30Hz or 50Hz) remove rumble and subsonic  
frequency.  
Twin-tunnel and two temperature-sensitivity forced-air cooling system to  
maintain a low, temperature working condition.  
Balanced XLR or balanced 1/4-inch TRS Combination input connector for  
each channel and LINK ports.  
5-way output binding posts or Speaker connectors enable secure operation.  
High-current toroidal transformer for absolute reliability.  
Independent DC and thermal overload protection on each channel  
automatically protects amplifier and speaker.  
The CV-5000 can be mounted in any standard 19” rack.  
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FRONT PANEL CONTROLS  
1. Rack Mounting Ears  
Two front panel mounting holes are provided on each mounting ear.  
2. Fan Vent  
CV-5000 amplifier is cooled by two rear-mounted fans. Cool air flows through the front fan  
filters, reducing the temperature of the inside components while forcing the heat out the rear  
vents. Never block these vents and keep them clean at all time.  
3. AC Power Switch  
This switch controls the units main power.  
4. Signal Indicators  
These green and yellow LED will illuminate to indicate that a signal is present at the amplifier  
input, and that the signal is being amplified.  
5. Clip Indicators  
These red LED will illuminate at the clipping threshold. If it lights frequently, you could be  
overloading the amplifier and a distorted signal is possibly being output. Under heavy clipping  
activity, lower the channel gain controls to reduce the risk of damage to your speakers and  
amplifier.  
6. Active Indicators  
These blue LEDs indicate that AC power is connected and the amplifier is turned on.  
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7. Protect Indicators  
These red LED indicate that the channel is in Protect mode. When the channel goes into  
protect mode all output for that channel will turn off by output relay. The protect LED will light  
when overheating or other severe problems occur. This is to protect any speakers connected  
to the channel. These LEDs light for approximately five seconds whenever the amplifier is  
powered on, and fade slowly when the amplifier is powered off. This is normal operation.  
8. Channel input level control  
These two 21-position controls adjust input level for their respective amplifier channels. In  
Bridged Mono Mode, only channel 1 input level control is used to adjust signal level. In Parallel  
Mode, both input level control are used to adjust signal level for their respective amplifier  
channels. At their fully counter-clockwise position, the signal is attenuated by more than  
80dB. At their fully clockwise position, the signal is at unity gain. When 0 dBu of signal arrives  
at the input jacks and the Channel input level controls are set to their fully clockwise position,  
the amplifier delivers full power output.  
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REAR PANEL CONTROLS  
1. Fan  
This is a variable speed cooling fan. Cool air enters the amplifier through the fan ports located  
on the front of the amplifier chassis, be sure not to block these ports when installing the  
amplifier or other associated equipment.  
2. Input connectors  
Connect the input source to these electronic balanced Combination connectors using either  
XLR or 1/4” TRS plugs. The 1/4” TRS and XLR plug configured as follows: Pin 2 (Tip) hot, Pin  
3 (Ring) cold, and Pin 1 (Sleeve) ground. We recommend the use of balanced three-conductor  
cabling wherever possible. Unbalanced two-conductor 1/4” plugs can also be inserted into  
these inputs, but you will get better signal quality and less outside noise and hum if you use  
balanced lines. Stereo signal should be connected to both the Channel 1 and Channel 2 input  
jacks. When operating the CV-5000 in Bridged Mono or Parallel modes, use the Channel 1  
input jack only.  
3. Link connectors  
These jacks are used to send a parallel signal form the channel Link jacks to another device  
or amplifier.  
4. High Pass Filter (HPF) switch.  
These slide switches are used to activate the built-in High Pass Filter.  
The HPF rolls off signals below 30Hz or 50Hz. This improves bass performance by limiting  
sub-audio cone motion, making more power available for the speaker’s rated frequency  
range. When the filter is turn off, a 5 Hz roll off protects against DC or deep sub-audio inputs.  
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5. Limiter switch  
When the input signal connected to your amplifier is too high, you can end up with a distorted  
output signal. To prevent this, both channels of your CV-5000 feature a clip limiter that can be  
engaged or disengaged selectively.  
6. Bridge / Stereo / Parallel switch  
This switch changes the amplifier operating mode from either stereo or mono, and bridged or  
parallel. You can place this switch in “STEREO” position (center) for normal stereo operation.  
When placed in “PARALLEL” position, the channel 1 input signal is routed to the power  
amplifier of both channel. When placed “BRIDGED” position, the channel 1 input signal is  
routed to both amplifiers again. In Parallel and Bridged mode, the channel 2 input is ignored.  
7. 5-way Binding Post  
Connect each channel of the CV-5000 to 4 ohms or 8 ohms loudspeakers. Two pairs of 5-way  
binding posts are provided for each channel, so that paralleling of speakers is possible.  
Connection to the binding posts can be made with bare wire, banana plugs, or spade lug  
terminations. Make connections to both the Channel 1 and Channel 2 terminals for Stereo or  
Parallel Mode, or a single connection across the red terminals only of Channel 1 and Channel  
2 for Bridged Mono Mode.  
8. Speakon output connectors  
You can use these to connect each channel of the CV-5000 to 4 ohms or 8 ohms  
loudspeakers. Using Speakon speaker cables, make connections to both the channel 1 and  
channel 2 connectors for Stereo or Parallel Mode, or to the Bridged mode connector for  
Bridged Mono Mode.  
9. Circuit breaker  
The circuit breaker replaces common disposable fuses. This circuit breaker will trip if there is  
a fault with the main voltage or if maximum output is exceeded. Simply depress the circuit  
breaker and power up the unit again.  
10. AC input  
This is an IEC connector for your included AC power cable.  
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PROTECTION  
The CV-5000 incorporates protection features. The front panel Protection LED indicates the  
activity of the relay speaker connection circuitry in each channel. When the Protection LED  
turn on, this circuitry is active and all connected speakers are muted.  
Initial Power Up - For approximately five seconds after initial power-up, the protection circuitry  
is activated and the speaker outputs are muted. If everything is operating normally, you will  
hear an audible click at the conclusion of this brief period, as the protection circuitry is  
deactivated and the amplifier begins delivering signal to connected speakers. It is normal for  
the Protection LED to fade gradually after the amplifier is powered off.  
Thermal Protection - Abnormally high heat sink temperatures will engage the Protection  
circuitry for the overheating channel only. An output relay disconnects the speakers until  
normal temperature range is restored. During this time, the Protect LED will light.  
To guard against this problem, make sure the CV-5000 receives adequate ventilation on all  
sides and that both the front and rear panels are unobstructed. If the power transformer gets  
too hot, its thermal switch will disconnect all of the secondary power and disconnect both  
channel outputs.  
Short Circuit - If output is shorted due to faulty wiring, the thermal circuitry will automatically  
protect the amplifier. If this occurs, the load will be disconnected by the thermal protection  
circuitry (also, the output relay opens).  
DC Voltage Protection - If an amplifier channel detects DC voltage at the speaker output, the  
output relay immediately opens to prevent speaker damage.  
Subsonic Frequency Protection - Built-in High Pass Filter provides subsonic frequency  
protection for each channel.  
Current Limiting Protection - At the amplifier’s full power limit, (or clipping point) the limiter  
circuitry will be activated. This is indicated by illumination of the Clip LED. The channel gain is  
automatically reduced, protecting the speakers from damage. This circuitry may be activated  
by uncontrolled feedback, oscillations,or improper equipment gain settings. This circuitry is  
virtually transparent in operation, and full signal bandwidth is maintained.  
Any time the Protection LED lights up (except for approximately 5 seconds during initial  
power-up), there is reason to be concerned. If this occurs, turn the amplifier off immediately  
and check carefully all wiring and external equipments in order to locate and correct the  
condition.  
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SETUP  
Clip Limiter  
Clipping is the result of an amplifier running into a power supply limitation. The maximum  
output voltage that any amplifier can produce is limited by its power supply. Attempting to  
output a voltage (or current) level that exceeds the power supply results in a “flattenin” effect  
on the signal, making it’s waveform look cut off or “clipped”. A clipped waveform exhibits  
extreme harmonic distortion, dominated by large amplitude odd-ordered harmonics and  
making it sound harsh or dissonant.  
The clip limiter detects this and reduces the gain to minimize the amount of overdrive. To  
preserve as much of the program dynamics as possible, limiting reduces the average program  
level until peaks barely clip. Each channel has its own clip limiter, and you can switch it on or  
off.  
When driving full-range speakers, clip limiting reduces high frequency distortion caused by  
bass overload. It also protects higher frequency drivers from excess overdrive and harsh  
clipping harmonics.  
HPF (Hi-Pass Filter)  
A filter having a passband extending from some finite cutoff frequency (not zero) up to infinite  
frequency. Also known as a low-cut filter. HPF rolls off signals below 30Hz or 50Hz, removing  
the frequencies below the selected roll off. Reproduction of the signal’s bass portion is thus  
optimized, since ultra-low, distracting frequencies are eliminated, and more power is available  
for the reproduction of the wanted segment of the signal.  
You should set up the filters so they best suit the frequency response of your speakers, since  
some speakers are particularly sensitive to over-excursion. The 50Hz filter works well with  
most compact full-range speakers.  
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Mode Select  
Stereo Mode  
In stereo mode, both channels operate independently, with their input gain controls. Signal at  
channel 1’s input produces output at channel 1, while signal at channel 2’s input produces  
output at channel 2’s output. Recommended minimum nominal load impedance for stereo  
operation is 2 ohms per channel.  
Parallel Mode  
When set to Parallel mode, a signal applied to channel 1’s input will be amplified and appear  
at outputs for both channel 1 & 2. With set to parallel. The parallel mode is well-suited for  
applications in which driving two speakers with the same signal but with separate  
amplification.  
Bridged Mono Mode  
Bridged mono mode straps both amplifier channels together to make a very powerful, single-  
channel monaural amplifier. One channel ”pushes” and the other channel “pulls” equally,  
doubling the power over that of either channel alone. Therefore the voltage is doubled, the  
peak power is quadrupled, and program power is roughly three times as high as that of the  
individual channel.  
Signal is applied to the channel 1 input only and channel 1 input gain control is used to adjust  
signal level. The input gain control belonging to channel 2 are not used.  
Note : Bridged mono mode is to be used only when the CV-5000 is connected to a 4 or 8  
ohms speaker load. Use of Bridged mode with speaker loads of 4 ohms or less can result in  
severe damage to the unit due to excessive heat and current limiting.  
Use extreme caution when operating the amplifier in Bridged Mono Mode. Never ground  
either side of the speaker cable when the amplifier is in Bridged Mono Mode ; the speaker  
load must “ float “ away from the amplifier chassis.  
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CONNECTIONS  
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WIRING  
These are several ways to interface the CV-5000 to support a variety of applications. The CV-  
5000 features balanced inputs and outputs, so connecting balanced and unbalanced signals  
is possible.  
BALANCED TRS 1/4” CONNECTOR  
UNBALANCED TRS 1/4” CONNECTOR  
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XLR BALANCED WIRING GUIDE  
SPEAKON® OUTPUT CONNECTOR  
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SPECIFICATIONS  
0dB=0.775V 0dBV=1V  
Rated Output Power  
8 ohms  
4 ohms  
Stereo  
1100W  
1800W  
2500W  
2 ohms  
Rated Output Power  
8 ohms  
4 ohms  
Bridged Mono  
3600W  
5000W  
Signal to Noise Ratio  
(20 Hz ~ 20k Hz)  
<-100dB  
Distortion (SMPTE-IM)  
Input sensitivity @8 ohms  
Voltage Gain  
< 0.02%  
1.42V (+5.3dB)  
36dB  
Output Circuitry  
Class-H, 3 tier  
Current Consumption  
120Vac / 240Vac  
13.9A / 6.5A  
@ 1/8 power @4 ohms  
@ 1/3 power @4 ohms  
@ Rated power @4 ohms  
26.9A / 10.5A  
56.4A / 26A  
Distortion  
(20 Hz-20k Hz Half Power)  
(1k Hz Rated Power)  
< 0.03% / 4and 8Ω  
< 0.03% / 4and 8Ω  
Frequency Response  
Damping Factor (400 Hz)  
Input Impedance  
Input Clipping  
5Hz to 50kHz to -3dB  
>300 at 8Ω  
10Kohm Unbalanced  
20Kohm Balanced  
+14dB  
Cooling  
Continuously variable speed fan,  
Front to rear airflow  
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Connectors (each)  
Input  
Active balanced combo  
(XLR and 1/4” TRS common use)  
XLR male Link  
Output  
5-way Binding post and Speakon  
Control  
Front  
Rear  
AC power switch, Channel 1 and 2 volume  
HPF switch, Limiter switch,  
Mode selector switch  
Indicators  
Protection  
Active(blue), Protection(red), Clip(red),  
Signal (green & yellow)  
Short circuit, Thermal, Current limit,  
DC offset, Current inrush, RF protection,  
Turn on / Turn off muting  
Power requirements  
Dimensions (W × H × D)  
Net Weight  
100, 120/240Vac, 50/60Hz  
19”(482mm) x 5.25”(132mm) x 19”(482mm)  
83.3Ib  
(37.2kg)  
Specifications are subject to change without notice.  
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USA: The Stanton Group • 772 S. Military Trail • Deerfield Beach, FL • 33442  
Phone: 1-954-949-9600 • Fax: 1-954-949-9590 • Email: info@Cerwin-Vega.com  
Europe: Stanton Europe • 382 Avenue de la Couronne, 1050 Brussles, Belgium  
Phone: +32 2 645 05 00 • Fax: +32 2 645 05 05 • Email: [email protected]  
Cerwin-Vega! is a division of the Stanton Group  
Cerwin-Vega! reserves the right to make changes to product specifications and design at any time  
© Copyright 2010 Cerwin-Vega!  
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