CV-5000
HEAVY DUTY PROFESSIONAL AMPLIFIER
USER MANUAL
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
3
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!
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.
4
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.
5
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 unit’s 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.
7
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.
9
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.
10
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.
12
CONNECTIONS
13
14
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
15
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% / 4Ω and 8Ω
< 0.03% / 4Ω and 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!
LITP00070-A 5-3-2010
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