Carvin C844U Instruction Manual - Page 4

DIRECT OUT

Plug a 1/4” mono cable “half way” into

the Channel Insert Jack.

The “half” insert

connection creates a send signal without

breaking the channels signal path.

The

insert in this mode is no longer used as

an insert but becomes what is called an

DIRECT out.

FULL INSERT

The insert jack is a Tip Ring Sleeve (TRS)

1/4” phone jack, where the tip is the send,

the ring is the return and the sleeve is

ground.

When used as an insert point or

in full INSERT mode, the channel is opened

up to allow an external piece of equipment

to be inserted into the channels signal

path.

The signal coming from the micro-

phone preamplifier will be forced to go

through the external equipment before it

can continue back through the channel, re-

entering before the channel EQ controls.

Most external equipment is not set up for

the TRS plug directly so an adapter cable

such as the Carvin

AP1

or

PP10

is required.

Plug the 1/4” stereo TRS end into the

mixer insert all the way.

The two mono 1/4”

TS jacks at the opposite end are the send

and return cables. If both an INSERT and

a DIRECT out is required, “Y” the SEND

cable.

MIC

INSERT

1

12

3

6

9

12

9

6

3

- 0 +

GAIN

HI

MID

LOW

5

4

3

2

1

0

10

9

8

7

6

12

3

6

9

12

9

6

3

- 0 +

12

3

6

9

12

9

6

3

- 0 +

LINE

MIC Pre-Amp

PIN 2 (+)

PIN 3 (–)

GAIN

TO EFFECTS

STEREO PLUG

FULL INSERT

INSERT JACK

SEND

RETURN

TIP:

SEND

SLEEVE: GROUND

RING: RETURN

INSERTS AND DIRECT OUTS

MIC

INSERT

1

12

3

6

9

12

9

6

3

- 0 +

GAIN

HI

MID

LOW

5

4

3

2

1

0

10

9

8

7

6

12

3

6

9

12

9

6

3

- 0 +

12

3

6

9

12

9

6

3

- 0 +

LINE

PIN 2 (+)

PIN 3 (–)

MONO PLUG

1/2 INSERT

MIC Pre-Amp

GAIN

INSERT JACK

TO RECORDER

TIP: SIGNAL

SLEEVE: GROUND

1-2

3-4

MONO

L-R

EQ 1

EQ 2

0

0

RTN 3

MON 2

MON 1

MON 4

RTN 4

MON 3

TAPE IN

RETURN

MONITORS

MONO

L

R

POWER

PHONES

+18

+12

+6

0

-

6

-12

-18

-24

-30

PEAK

CONCER

CONCER

T SERIES

T SERIES

C1644

C1644

-30

-50

-12

-24

12

6

-30

-50

-12

-24

12

6

-30

-50

-12

-24

12

6

-30

-50

+

-12

-24

12

24-BIT DUAL STEREO EFFECTS

125

250

500

63

1K

2K

4K

8K

16K

0

8

4

4

8

±

12

+12

0

8

4

4

8

12-

12+

EFFECTS 2

EFFECTS 1

0

8

4

4

8

±

12

+12

0

8

4

4

8

12-

12+

L

R

TAPE IN

1

L

TAPE OUT

R

MON 1

4

2

3

PHONES

EFF 1

3L

3R

RETURN

MONO

MON 2

MON 3

RTN 4

MON 4

EFF 2

GROUPS

METERS

1

2

3

4

L

R

0

0

MON

MON

EFF

SW

1 2

-

0

-12

-24

-30

-50

+

12

+

6

-6

-6

-6

-6

-6

+

6

A multi-track recorder can be connected to the Channel Insert jacks (1/2 plugged).

This set up could be used with a live set up to record a live show.

MONO

L

R

CONCER

CONCER

T SERIES

T SERIES

C1644

C1644

1

L

R

4

2

3

MONO

1

2

3

4

L

R

1

1

1

2

2

2

3

3

3

4

4

4

5

5

5

6

6

6

7

7

7

8

8

8

9

9

9

10

10

10

11

11

11

12

12

12

13

13

13

14

14

14

15

15

15

16

16

16

MULTI-TRACK RECORDING

Follow this set up for mixing down to a two track recorder.

Connect the Multi-track recorders’ outputs to the line inputs

of the channels.

Use the headphones or connect a profes-

sional power amplifier (Carvin’s

DCM

power amps) and high

quality studio monitors (Carvin’s

SRS6.5

) to your main L/R

outputs to monitor your mixdown sessions.

Mixing is a prac-

ticed skill.

A trained ear will know when to

add EQ, effects,

compression, gate.

Listen to your favorite CD through the

same headphones or monitoring system you plan to mix

through.

Note each instrument’s level and position in the

stereo mix.

Use this as a guide to help mix your project.

MULTI-TRACK MIXDOWN

5

ADJUSTING THE 9-BAND EQ

When the 9 band graphic EQ sliders are in their “center” position, they do not affect the

audio signal.

When the EQ sliders are raised or lowered from this position, they boost

or cut respectively a narrow band of frequencies.

To reduce feedback in the low frequency

range, try lowering one of the 63, 125 or 250 Hz sliders.

High frequency feedback is reduced

by lowering one of the 2k or 4k Hz sliders. To help with feedback reduction, the main speaker

should always be placed in front of the microphones.

For tone enhancement, you may want to raise the 63, 125 (for deeper bass) and the 4, 8

and 16k (for crisper highs).

At the same time you may want to reduce the mid frequency at

1k forming a “smile” curve as shown.

125

250

63

GRAPHIC EQ

500

1K

0

8

4

4

8

12

12

+

-

4K

16K

8K

2K

0

8

4

4

8

12

12

+

-

Models that feature USB and S/PDIF connectors offer an added inter-

face for recording.

Connecting a USB cable between a computer and

a USB equipped Carvin mixer will allow recording on a computer with

compatible USB drivers and software.

The L-R stereo mix is sent via

the USB cable and the RECORD LEVEL offers fine tuning of the output

level. Inversely, you can bring audio in from computer playback via

USB.

The audio comes into the TAPE IN bus on the mixer. The S/PDIF

connector can be used to bring in digital audio to a computer through

USB.

This is useful for transferring digital audio sources such as DAT

to the computer.

It can also be used to convert playback from the

computer into S/PDIF out. This is useful for creating a digital backup

of computer recorded audio to another digital recorder.

The USB and

S/PDIF feature up to 48kHz, 16 BIT audio resolution.

USB AND S/PDIF

Carvin C844U Instruction Manual - Page 4

Inserts And Direct Outs, Multi-track Recording, Multi-track Mixdown, Adjusting The 9-band Eq, Usb

Page 4 highlights