Carvin cx1272 ユーザーズマニュアル

CARVIN ENGINEERING DATA

OPERATING MANU-

AL

THREE BAND

CHANNEL TONE

CONTROLS

PAD

-20dB

PAD SWITCH

HI

MID

LOW

MIC
PRE

CHANNEL

LEVEL

CHANNEL

EFF SND

CHANNEL
MONITOR

LEVEL

L

R MON EFF

EFFECTS

SUMMING AMP

EFFECTS

SEND 2

LEVEL

MAIN RIGHT

SUMMING AMP

AND LEVEL

MAIN LEFT

SUMMING AMP

AND LEVEL

EFFECTS

SEND 2

GAIN STAGE

NINE BAND

GRAPHIC

EQUILIZER

LEFT

LINE OUT

RIGHT

LINE OUT

NINE BAND

GRAPHIC

EQUILIZER

EFFECTS

SEND 2

INTERNAL
DSP SEND

GAIN

REDUCTION

FOR DSP

MONITOR

SUMMING AMP

MONITOR

LINE OUT

LEFT

AMP PATCH

RIGHT

AMP PATCH

DSP RETURN LEFT

DSP RETURN RIGHT

EFFECTS RETURN LEFT

EFFECTS RETURN RIGHT

EFF INPUT LEFT

TAPE RTN RIGHT

TAPE RTN LEFT

STEREO RETURN

FOR INTERNAL

STEREO DSP

RIGHT

TAPE OUT

LEFT

TAPE OUT

TO INTERNAL

POWER AMP

PAN

DSP TO

MONITOR

EFF INPUT RIGHT

Part No.

CHANNEL

line pad
(-26dB)

12340 World Trade Drive, San Diego, CA  92128

(619) 487-1600   (800) 854-2235

www.carvin.com

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.  

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.

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 re-ship your

unit, always use the original carton and packing material. This will provide the best pos-
sible protection during shipment.  CARVIN and the shipping company are not liable for
any damage caused by improper packing.  

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.

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 double-sided printed circuit
board (FR-4 fire rated) carefully guards the circuit traces with a copper shield running
over the traces.  This eliminates RF interference and reduces crosstalk substantially.  The
printed circuit board has plated-through holes which means that every component is
soldered securely in three places (bottom, in the hole and on top).  This offers unsur-
passed component security while reducing circuit resistance for pure dynamic sound.

Headroom is very important when designing a mixer—especially for recording. Lack of

headroom will cause your sound to become distorted and muddy.  This can happen when you
turn the volume too high, if the input signal is too hot or if excess bass or treble is added.
With most mixers, you have to reduce the input gain to fight headroom problems, but this
just increases noise.  That’s why we have taken great care in the CX series to make sure that
each gain stage is properly designed and balanced for more headroom along the entire audio
path. 

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_______________

76-01272   0798

Mic or Line Inputs: 20Hz-20KHz ±2dB

Total Harmonic Distortion: Less than .1% 
Equivalent Input Noise:

150 ohm source: -110dBu

-90dBu Master Line Out
(all levels minimum) 

(Power Mixers Only)

8

Ω

: 175/175 w, 4

Ω

: 250/250 w

2

Ω

: 375/375 w, less than 1% THD

+20dB 1/4” unbalanced 

Mic in to Master Line Out: 70dB

Adjacent ch’s: -60db at 1KHz

Common Mode Rejection: -80db at 1KHz
Phantom Power:

All  XLR Mic in channels

3 band active,

LOW: 80Hz

±12dB

MID: 2.2KHz ±12dB
HI: 11.5KHz ±12dB

9 Band Oct. Intervals ±12dB

Balanced XLR input

Unbalanced 1/4” Phone Jack

700VA

11”H x 19.5”W x9”D
Rack Model: 8.75”H x 19”W x 7.75”D