Owner's Manual

LIMITED WARRANTY
Your Carvin mixer is guaranteed against failure for 1 YEAR unless otherwise stated. Carvin will
service and supply all parts at no charge to the customer providing the unit is under warranty.
Shipping costs are the responsibility of the customer. CARVIN DOES NOT PAY FOR PARTS OR
SERVICING OTHER THAN OUR OWN. A COPY OF THE ORIGINAL INVOICE IS REQUIRED TO
VERIFY YOUR WARRANTY. Carvin assumes no responsibility for horn drivers or speakers dam-
aged by this unit. This warranty does not cover, and no liability is assumed, for damage due to:
natural disasters, accidents, abuse, loss of parts, lack of reasonable care, incorrect use, or failure
to follow instructions. This warranty is in lieu of all other warranties, expressed or implied. No
representative or person is authorized to represent or assume for Carvin any liability in connection
with the sale or servicing of Carvin products. CARVIN SHALL NOT BE LIABLE FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES.
SERVICE:
In the USA go to www.carvinservice.com
Outside the USA, contact your dealer or go to http://www.carvinworld.com for your nearest
service center. Include a written description of the problem with serial number and date of
purchase.
MAINTAINING YOUR EQUIPMENT
Avoid spilling liquids or allowing any other foreign matter inside the unit. The panel of your
unit can be wiped from time to time with a dry or slightly damp cloth in order to remove
dust and bring back the new look. As with all pro gear, avoid prolonged use in caustic
environments such as dust or salt air. When used in such an environment, be sure the
mixer is adequately protected by a cover.
SAFETY INSTRUCTIONS (EUROPEAN)
The conductors in the AC power cord are colored in accordance with the following code.
GREEN & YELLOW—Earth BLUE—Neutral BROWN—Live
U.K. MAIN PLUG WARNING: A molded main plug that has been cut off from the cord is unsafe. NEVER
UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED OR CUT MAIN PLUG INTO A POWER SOCKET.
C1648P REAR PANEL FEATURES:
1. SPEAKER OUTPUTS The combination SPEAKON jacks also accept 1/4” plugs.
The minimum load for each amp is 4 OHMS. Chaining together more than one speaker on an output is
fine as long as the total impedance is not below 4 ohms. If the speaker load is lower than 4 ohms, the
amp may go into one of the PROTECT modes. (Two 8 ohm speakers in parallel = 4 ohms) 12 Gauge
TWIST-LOK speaker cables are an industry standard for high power applicattions (pin 1+ is POS, pin 1- is
NEG, pins 2+ and 2- are not used). Use only 16 gauge (or heavier) 1/4” speaker cables, NOT shielded
instrument cables. Turn power off before connecting speaker cables.
2. AMP ROUTING switch will select between two internally routed configurations:
OUT postion: AMP1-LEFT, AMP2-RIGHT, AMP3-MONITOR1, AMP4-MONITOR2
IN position: 1 amp each, for Monitors 1 thru 4.
Speaker output levels are adjusted from the Left/Right faders or Monitor 1-4 controls. The front panel
GRAPHIC EQs function with the amps, depending on the front panel EQ1 and EQ2 switch settings.
3. AMP PATCH INSERT jacks offer flexibility for mixer to amp signal routing. These jacks are T-R-S
(Tip-Ring-Sleeve). Tip is the power amp input. Ring is the signal sent from the mixer determined by the
AMP ROUTING switch. The limiters are post insert. Patching a compressor or equalizer between the
mixer and the amp can be done by using a stereo insert cable (like Carvin’s AP1). Connect the RING
signal to the INPUT of the external device, and the TIP signal from the OUTPUT of the device. Plugging
in a standard 1/4” cable (mono) into the AMP PATCH INSERT jacks allows any external signal to be sent
to the internal power amps.
For example, you may want to patch the GROUP outputs (1-4) into the power amps.
-Plug one end of each cable into the GROUP jacks on the top panel of the mixer.
-Plug the other ends of the cables into the AMP PATCH INSERT jacks.
The GROUP 1-4 faders will now control what is heard at the SPEAKER OUTPUTS.
4. AMP CLIP LEDs - The red CLIP LEDs will flash when an amp has reached it’s maximum output.
Occasional flashing caused by bass frquencies is OK. Consistent flashing caused by higher frequencies
may damage drivers due to excessive distortion. This will not damage the amp.
5. PROTECT LED - The yellow LED indicates the power amp system has gone into one of its protection
modes. There will be no output from the amps. If the amp output has been short circuited, or overloaded
by putting less than 4 ohms on the output the amp will go into protection. Check for shorted speaker
cables and speaker impedance, then reset the POWER switch (off-on). If the amp has overheated, lower
the volume and make sure the fan vents are not blocked. Wait for the fan to cool the amps. Normal
operation will return in about 1-3 minutes.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
IMPORTANT! FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING:
WATER AND MOISTURE: Appliance should not be used near water (near a bathtub, washbowl, kitchen sink,
laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so that objects do not
fall and liquids are not spilled into the enclosure through openings.
POWER SOURCES: The appliance should be connected to a power supply only of the type described in
the operating instructions or as marked on the appliance.
GROUNDING OR POLARIZATION: Precautions should be taken so that the grounding or polarization
means of an appliance is not defeated.
POWER CORD PROTECTION: 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 cords at plugs,
convenience receptacles, and the point where they exit from the appliance.
SERVICING: The user should not attempt to service the appliance beyond that described in the operat-
ing instructions. All other servicing should be referred to qualified service personnel.NG: If your unit is
equipped with a fuse receptacle, replace only with the same type fuse. Refer to replacement text on the
unit for correct fuse type.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL!
This symbol is intended to alert the user
to the presence of uninsulated “dangerous
voltage” within the product’s enclosure that
may be of sufficient magnitude to constitute
a risk of electric shock to persons.
This symbol is intended to alert the user
to the presence of important operating
and maintenance (servicing) instruc-
tions in the literature accompanying
the appliance.
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C1648P REAR PANEL
C1648P POWER AMP SPECIFICATIONS:
RMS Continuous Power: 4ohm: 500W/amp
8ohm: 300W/amp
Frequency Response: ±0.5dB, 20Hz-20kHz
±1.5dB, 10Hz-25kHz
THD: (50% output) 0.09%
Output Noise: < -75dBu speaker out (all levels minimum)
Protection Circuits: Soft Start, Short Circuit, No Load, SpeakerGuard,
Thermal Shut-Off, Protect and Clip Indicators,
Amp Peak Limiters.
Maximum Gain: Mic in to Speaker Out: 74dB
Power Requirements:
Auto switching:120VAC or 240VAC, 50-60Hz, 1000VA
Size: 22.25”W x 16.25”D x 5.6”H
Weight: 25 lbs.
C1648P 2000w Powered Mixer
“OUT” uses LEFT/RIGHT for AMPS 1&2
254 3
C1648P BLOCK DIAGRAM