Carvin C844 manual Concert Series Specifications, C1644 Block Diagram

CARVIN ENGINEERING DATA C844, C1644, C2444, C3244 4-BUS MIXER OPERATING MANUAL

C1644

CONCERT 44 SERIES Never before have so many features been packed into such a rugged, compact, American made mixer. The best feature of the Concert 44 Series is the sound. Sound that is pure and quiet enough for your digital recording studio! Everything is logically laid out making the powerful features simple to use and the compact size makes it a breeze to carry. The knobs are not micro size, making adjustments quick and easy - and the visible pointers show you the status of your mix at a glance. The C844, C1644, C2444 and C3244 feature 8 to 32 channels with true 4-bus performance.

TRUE 4-BUS DESIGN The Concert 44 Series offers increased mixing flexibility over standard stereo consoles by letting you assign channels to one of the 4 sub groups or L/R. This allows you to mix the entire drum, horn, choir section, etc. into one sub group fader, which feeds the L/R faders. This is an easy way to control the volume of grouped mics or inputs. If you don’t need subgrouping, you can depress the L/R channel button and the channel goes directly into the L/R output like a standard stereo console. All 4 sub group outputs have balanced outputs for long cable runs.

TWO EFFECT SENDS / TWO 24-BIT EFFECT PROCESSORS Two built-in 24-Bit effects, each offering 256 stereo effects, is a first in a 4-bus mixing console. Since there are two, you no longer have to choose between that great vocal reverb with delay and that awesome guitar chorus - you can have both! Each processor offers lush REVERBS, rich CHORUSES, thick textured FLANGING and pristine ECHOES with fully adjustable parameters for damping, decay, depth, speed, time and regeneration. Both processors can be sent back into the monitor mix so the performers can hear exactly what the audience is hearing.

FOUR MONITOR SENDS Every channel can access any of the 4 MONITOR mixes while still having access to 2 EFFECTS. The MONITOR 4-ALT EFF2 control not only sends to the MONITOR 4 output but also sends to the EFFECTS 2 processor for two simultaneous effects per channel. All 4 monitor sends are balanced.

3 BAND EQ/MID SWEEP The superb EQ system gives extended 15 dB boost and cut tone shaping. The LOW frequency control builds bass response starting with 20 Hz through 80 Hz for a solid non-flabby bass. The exclusive offset of the MID FREQ. control ends the confusion of selecting your mid frequency from 100 Hz to 5kHz. The MID cut and boost control adjusts the gain to the perfect mid-dip or boost curve to enhance all instruments and vocals. The 11.5k Hz HI treble control adds sparkle to your top- end without adding harshness. Both the LOW and HI are “shelving”, which means they are effective from 20 Hz and up to 20k Hz. The LO CUT switch eliminates stage rumble or other unwanted low fre- quencies that would normally rob power from your woofers.

RECEIVING INSPECTION—read before getting started

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 possible 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 separately. 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 manual for your records. Keep your portion of the card and return the portion with your name and comments to us.

CHANNEL FEATURES Every channel has a full balanced XLR and LINE (1/4”) preamp with an INSERT jack for a compressor or EQ that also serves as a DIRECT OUT when plugged half way. The PAN control directs the channel into the L/R output or any of the 4 sub groups after depress- ing the appropriate ASSIGN switches. A PFL (pre fader listen) switch allows you to hear the channel before the fader is turned up in the headphones. A solid “on” condition of the PEAK led indicates that the MUTE switch has been activated which turns the channel off including all monitor and effect sends. When flashing during use, the PEAK led also lets you know when to adjust the channel’s GAIN control to prevent channel overloading. The SIGNAL led lets you know that a signal is coming through the channel starting at –20 dBu. A silky smooth 60mm audio taper FADER delivers professional fade-outs. The PHANTOM power switches provide power through the XLR connectors for use with condenser mics like the Carvin CM90E in groups of 8 channels.

MASTER FEATURES Each of the 4 SUB GROUP faders can be switched to the R/L outputs or used independently through their own balanced output jacks. Each of the sub group’s PFL switches allow you to listen to the sub groups in your headphones before it is turned up. The R/L MAIN output faders are independent for added flexibility over a single stereo fader. A MONO control sums both the R/L outputs together for a center, side fill or subwoofer output. The stereo HEAD- PHONE control tracks the METER switches which allow you to look and listen from the L/R, MONO, MONITOR 1/2 and 3/4 outputs and channel PFL switches. The master section also features 2 EFFECT SENDS, 4 RETURNS and RCA TAPE IN/OUT jacks. All 4 SUB GROUPS, 4 MONITORS, XLR L/R and MONO outputs are balanced. A FOOT SWITCH jack turns both effects processors on or off remotely with the optional FS22 foot switch.

SWITCHING POWER SUPPLY Our exclusive 125k Hz switching power supply eliminates trans- former noise. Like a laptop computer, go anywhere in the world and not worry about power because you can run on any voltage from 90 to 250VAC.

SUPERB SOUND State-of-the-art low impedance, low noise preamps are featured on every chan- nel. The balanced common mode rejection is better than 70 dB to eliminate cable noise. All main outputs are balanced to guard against system noise. The near theoretical limit on distor- tion has been achieved with THD below .01% to guarantee the purity of your sound, ensuring it will be dynamically open and transparent.

ENGINEERED TO LAST Hidden deep in the heart of these USA made mixers is the SMT construc- tion that utilizes surface mounted components to prevent malfunctions caused by vibrations. Sealed controls and switches guard against the outside elements while heavy-duty jacks provide a posi- tive connection to your cables. Fire retardant FR-4 military spec circuit cards feature double-sided copper to eliminate radio frequency interference. Precision 1% tolerance components guaran- tee your settings will be accurate every time. The Concert 44 Series is built to strict standards.

TWO 9 BAND EQUALIZERS Precision equalizers provide precise 1 octave adjustments to tune in your

CONCERT SERIES SPECIFICATIONS:

overall sound and control feedback. Unlike one stereo equalizer, two independent 9 bands offers total

flexibility. With two convenient buttons, you can assign either EQ to the R/L outputs or to the 1/2 mon-

Mic Input:

Balanced XLR, Mic Imp. 150Ω

itor outputs. Center frequencies are 63, 125, 250, 500, 1k, 2k, 4k, 8k & 16k Hz.

Line Input:

Balanced 1/4” Jack Imp. 10k/20k bal.

C1644 BLOCK DIAGRAM

Frequency Response:

Mic or Line Inputs: 20Hz-20KHz ±1dB

1 2 3 4

Total Harmonic Distortion: Less than .01%

PFL LEFT RIGHT GROUP

GROUP

GROUP GROUP

MON 1

MON 2

MON 3

MON 4

EFF 1

EFF 2

HEADPHONE

Equivalent Input Noise:

150 ohm source: -117dBu

AND METER

CHANNELS

PEAK SIG

PFL

PHONES

Output Noise:

less than -90dBu Master Line Out

INSERT

SWITCHES

LEVEL

ASSIGN

PHONES

Output Headroom:

+28dB XLR bal, +20dB 1/4” unbal.

MIC

MUTE

PAN

L - R

OUTPUT

Maximum Gain:

Mic in to Master Line Out: 74dB

METERS

MIC

LO

THREE BAND

Crosstalk:

Adjacent channels: -60db at 1KHz

PRE

CUT

CHANNEL TONE

CONTROLS

Common Mode Rejection: -75db at 1KHz

LINE

PAD

line pad

CHANNEL

SWITCH TO

Phantom Power:

All XLR Mic in (channel groups of 8)

GAIN

ƒREQ

FADER

L - R

LEFT & RIGHT

(-16dB)

EFF

GRAPHIC EQ

Channel EQ.:

3 band active,LOW: 80Hz ±15dB

BAL OUT

1-2

FADERS

HI

LOW

LEFT

MID: 100Hz to 5kHz ±15dB

MON 1

TAPE OUT

RIGHT

HI: 11.5KHz ±15dB

MID

MON

LEFT

MONO

MONO

9 Band Graphic EQ.:

±12dB 63, 125, 250, 500, 1k, 2k, 4k, 16k

MUTE

BAL OUT

2-3

Power:

90 to 250VAC 50-60Hz, 20 to 50VA

RIGHT

Size:

C844: 14.25”D x 14.5”W x 3.25”H

MON 4

C1644: 14.25”D x 22.25”W x 3.25”H

PFL

GROUPS 1 - 4

LEFT

FADERS

C2444: 14.25”D x 30”W x 3.25”H

BAL TRS

C3244: 14.25”D x 38.1”W x 3.25”H

1 - 4

Optional Accessories:

EFFECTS RETURN

3L - 3R

C844:

CB800 Heavy padded bag

FS22 foot switch for all models

RIGHT

SWITCH TO

MON 1 - 4

C1644:

CB1600 Heavy padded bag

AN1600 Anvil™ hard case

MON 1 - 4

GRAPHIC EQ

RETURN 3

LEVEL

MON 1 & 2 ONLY

BAL TRS

C2444:

CB2400 Heavy padded bag

AN2400 Anvil™ hard case

LEVEL

C3244:

AN3200 Anvil™ hard case

LEFT

EFF SNDS

IN 1

DSP x 2

1 & 2

EFFECTS RETURN

IN 2

TAPE IN

4L - 4R

LEFT

STEREO

RCA

SOURCE

TO

RIGHT

L & R

TO

MONS 1 - 3

RIGHT

TAPE IN

PFL LEFT RIGHT GROUP 1

RTN 4

GROUP 2

GROUP 3 GROUP 4

MON 1

MON 2

MON 3

MON 4

EFF 1

EFF 2

LEVEL

12340 World Trade Drive, San Diego, CA 92128

76-02400

1001

For your records, you may wish to record the following information. Serial No._________________________ InvoiceDate___________

(800) 854-2235

www.carvin.com