CARVIN ENGINEERING DATA CX672 6CH, CX872 8CH & CX1272 12CH STEREO MIXER OPERATING MANU-
AL
RECEIVING
CX672 / CX872 / CX1272 / CX1272R
Congratulations on the purchase of your CX mixer. Your new CX series mixer demonstrates CARVIN’s commitment to producing the highest quality and most sophisticated engineering in the audio industry today. The CX series mixers were designed to be professional mixers in com- pact units. The CX includes a full function stereo mixer, with two nine band graphic equalizers, a digital signal effects processor and a powerful stereo amplifier. A rack mount version is also available without power amps. Each CX series mixer is surrounded by a strong, lightweight 3/4” poplar plywood cabinet covered with Duratuff II™ carpeting making the CX mixer road worthy.
CX OVERVIEW
The MIC/LINE input channels feature XLR and 1/4” LINE inputs with phantom power for condenser mics. There are 3 bands of EQ, a post fader effect send, and a monitor pre- fader send on each channel. The master section features two 9 band graphic EQs, master stereo main and monitor mix controls, a complete 16 program effects processor with send and return controls, and a stereo external effects return.
“SHELVING” EQ WITH ACTIVE TONE CIRCUITS
The CX series incorporates 3 bands of EQ per channel. They offer smooth tone curves so your adjustments will sound natural and yet be effective. The high (treble) and low (bass) “shelving” type controls cover the complete upper and bottom portions of the audio range. The MID EQ controls are a “band pass” type which peak at 2.2k Hz for added presence to your mid range tones. Because CARVIN uses “active” tone circuits, you are able to boost or cut your tones without any signal loss to your sound.
INSPECT YOUR MIXER FOR ANY DAMAGE which may have occurred during shipping. If any damage is found, please notify the shipping company and CARVIN immediately. SAVE THE CARTON & ALL PACKING MATERIALS. In the event you have to
SAVE YOUR INVOICE. It will be required for warranty service if needed in the future. SHIPMENT SHORTAGE. If you find items missing, they may have been shipped sepa-
rately. Please allow several days for the rest of your order to arrive before inquiring. RECORD THE SERIAL NUMBER on the enclosed warranty card or below on this man-
ual for your records. Keep your portion of the card and return the portion with your name and comments to us.
INTERNAL SIGNAL ROUTING
Your balanced mic or instrument plugs directly into the high quality XLR Neurtric™ connectors and is then routed into the differential circuits for excellent hum and noise cancellation. As your signal continues within the console, a
HEADROOM
Headroom is very important when designing a
TOROID SUPPLY
A big feature in the CX power supply is the precision wound Toroid transformer (not available from our competitors) that offers lighter weight with massive current capabil- ity for the power amp. The toroid based power supply also offers unsurpassed rejection of noise and hum while providing precision voltage for all preamp stages. Now you can go anywhere and never worry about inconsistent sound due to fluctuating voltages. CARVIN has spared no expense to achieve the best possible quality & performance.
For your records, you may wish to record the following information.
Serial No._____________________ Invoice Date_______________
CX672, CX872 & CX1272 SPECIFICATIONS:
CX672, CX872, CX1272 BLOCK DIAGRAM
| LR MON EFF | LEFT | |
PAD SWITCH |
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| TAPE OUT |
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| NINE BAND |
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| THREE BAND | PAN |
| GRAPHIC | LEFT |
MIC | CHANNEL TONE |
| EQUILIZER | ||
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| LINE OUT | |||
PRE | CONTROLS |
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PAD |
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| AMP PATCH |
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line pad |
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| MAIN LEFT |
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| SUMMING AMP |
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| AND LEVEL | RIGHT |
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HI | MID | LOW | LEVEL | CHANNEL |
| TAPE OUT |
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| EFF SND |
| NINE BAND |
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| RIGHT | LINE OUT |
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| AMP PATCH |
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| CHANNEL | MAIN RIGHT |
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CHANNEL |
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| MONITOR | SUMMING AMP |
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| LEVEL | AND LEVEL | MONITOR | TO INTERNAL | |
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| LINE OUT | POWER AMP |
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STEREO RETURN |
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| DSP RETURN LEFT |
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FOR INTERNAL |
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| DSP TO |
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| MONITOR | ||
STEREO DSP |
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| MONITOR |
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| SUMMING AMP | ||
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EFFECTS
SEND 2
| DSP RETURN RIGHT |
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| EFFECTS |
| EFFECTS |
| SUMMING AMP | EFFECTS | |
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| SEND 2 | |
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| SEND 2 | GAINSTAGE |
TAPE RTN LEFT |
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EFF INPUT LEFT |
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| GAIN |
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| EFFECTS RETURN LEFT |
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| REDUCTION |
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| FOR DSP | INTERNAL | |
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| DSP SEND |
TAPE RTN RIGHT
EFF INPUT RIGHT
EFFECTS RETURN RIGHT
Frequency Response: | Mic or Line Inputs: | |
Total Harmonic Distortion: Less than .1% |
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Equivalent Input Noise: | 150 ohm source: |
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Output Noise: |
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| (all levels minimum) |
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Output Power: | (Power Mixers Only) |
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CX872 & CX1272 : | 8Ω : 175/175 w, 4Ω : 250/250 w | |
| 2Ω : 375/375 w, less than 1% THD | |
Output Headroom: | +20dB 1/4” unbalanced |
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Maximum Gain: | Mic in to Master Line Out: 70dB | |
Crosstalk: | Adjacent ch’s: | |
Common Mode Rejection: |
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Phantom Power: | All XLR Mic in channels |
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Channel EQ.: | 3 band active, | LOW: 80Hz |
±12dB |
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| MID: 2.2KHz ±12dB | |
| HI: 11.5KHz ±12dB | |
Graphic EQ.: | 9 Band Oct. Intervals ±12dB | |
Mic Input: | Balanced XLR input |
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Line Input: | Unbalanced 1/4” Phone Jack | |
Power Consumption: | 700VA |
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Size: | 11”H x 19.5”W x9”D |
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| Rack Model: 8.75”H x 19”W x 7.75”D |
| 12340 World Trade Drive, San Diego, CA 92128 |
| (619) |
www.carvin.com |