Carvin C1644U manual Inserts and Direct Outs, Adjusting the 9-BAND EQ, MULTI-TRACK Mixdown

INSERTS AND DIRECT OUTS

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.

FULL INSERT		TIP: SEND
		RING: RETURN
LINE		SLEEVE: GROUND
1	MIC Pre-Amp
	PIN 2 (+)
	PIN 3 (–)
MIC
	GAIN
INSERT		INSERT JACK

GAIN 4 5 6

3 7

28

1 9

0 10 HI 3 - 0 + 3

6	6	STEREO PLUG
9	9

12 12 MID 3 - 0 + 3

66

99

12	12
LOW	- 0 +
3	3
6	6
9	9
12	12

SEND RETURN

TO EFFECTS

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.

1/2 INSERT	TIP: SIGNAL
	SLEEVE: GROUND

LINE

1 MIC Pre-Amp

PIN 2 (+)

PIN 3 (–)

MIC

GAIN

INSERT JACK

INSERT

GAIN 4 5 6

3 7

28

1 9

0 10 HI 3 - 0 + 3

6	6
9	9	MONO PLUG

12 12 MID 3 - 0 + 3

6	6
9	9

12 12

LOW - 0 +

3 3

6	6
9	9

12 12

TO RECORDER

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.

GRAPHIC EQ

63 125 250 500 1K 2K 4K 8K 16K

+12	12 +
8	8
4	4
0	0
4	4
8	8
- 12	12 -

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16			L
															1	2	3	4
																		R
																		MONO

CONCERT SERIES

C1644

L R

MONO

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 L R

MULTI-TRACK MIXDOWN

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 RECORDING

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.

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16		GROUPS			EFFSW 1-2 PHONES
																					L
																1	2	3	4	TAPE OUT
																MON 1	MON 2	MON 3	MON 4
																				L	R R
																EFF 1	EFF 2	3L RETURN 3R		TAPE IN	MONO
																				RTN 4
																+12				12+	POWER
																8				8	EQ 1 EQ 2
																4				4
																0				0
																4				4
	HI	HI	HI	HI	HI	HI	HI	HI	HI	HI	HI	HI	HI	HI	HI	8				8
																±12				12-

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

- 15

+ 15

CONCERT SERIES

C1644

12+

- 15

+ 15

8

8

4

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

0

PEAK

4

+18

8

- 15	+ 15	-																																				12-		+12
																																		2K	4K	8K	16K			+6
																																	24-BIT DUAL STEREO EFFECTS							0
																																								-6
																																								-12
3	3	3																																						-18
6	6	6																																						-24
9	9	9																																						-30
																																							L	R
3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9
	PAN		PAN		PAN		PAN		PAN		PAN		PAN		PAN		PAN		PAN		PAN		PAN		PAN		PAN		PAN		PAN	RETURN	TAPE IN		MONITORS					MONO
1		2		3		4		5		6		7		8		9		10		11		12		13		14		15		16		RTN 3	RTN 4	MON 1	MON 2	MON 3		MON 4
+12		+12		+12		+12		+12		+12		+12		+12		+12		+12		+12		+12		+12		+12		+12		+12		+12	12	12	12			+12
																																								PHONES
+6		+6		+6		+6		+6		+6		+6		+6		+6		+6		+6		+6		+6		+6		+6		+6		+6	6	6	6			+6
0		0		0		0		0		0		0		0		0		0		0		0		0		0		0		0		0	0	0	0			0
-6		-6		-6		-6		-6		-6		-6		-6		-6		-6		-6		-6		-6		-6		-6		-6		-6	-6	-6	-6			-6		L-R
-12		-12		-12		-12		-12		-12		-12		-12		-12		-12		-12		-12		-12		-12		-12		-12		-12	-12	-12	-12			-12	MONO
-24		-24		-24		-24		-24		-24		-24		-24		-24		-24		-24		-24		-24		-24		-24		-24		-24	-24	-24	-24			-24		MON1-2
-30		-30		-30		-30		-30		-30		-30		-30		-30		-30		-30		-30		-30		-30		-30		-30		-30	-30	-30	-30			-30
-50		-50		-50		-50		-50		-50		-50		-50		-50		-50		-50		-50		-50		-50		-50		-50		-50	-50	-50	-50			-50		MON3-4
																																								METERS
1		2		3		4		5		6		7		8		9		10		11		12		13		14		15		16		1	2	3	4			L R

USB AND S/PDIF

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.

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