Mackie 1640 37. AUX SENDS SOLO, 38. AUX 1-4RETURNS, 39. AUX RETURN 4 to CR/PHONES ONLY, 40. EFX TO MON Level Controls, SUB ASSIGN

ONYX 1640

AUX MASTERS

AUX	AUX	EFX
SENDS	RETURNS	TO
		MON

PRE

37. AUX SENDS SOLO

This button allows you to solo an individual AUX SEND. If you are using the aux sends to feed your stage monitors, you can use these buttons to check your monitor mix. Beside each switch is an indicating LED to let you easily spot a soloed aux send.

POST

1

The aux send solo is not affected by the SOLO MODE

1

	MON
OO	+15

2

MON

OO +15

3

	MON
OO	+15

SOLO	OO	+10	OO	+10
			TO AUX 5
PRE
POST			2
SOLO	OO	+10	OO	+10
			TO AUX 6
PRE
POST			3
SOLO	OO	+10	SEND
				TO

switch (PFL/AFL), except that in PFL mode only the right meter indicates the signal. The aux send’s PFL/ AFL status is determined by the PRE/POST switches next to the AUX SEND MASTERS.

38. AUX 1-4 RETURNS

These four controls set the overall level of effects received from the stereo AUX RETURN 1-4 inputs [61].

		PRE
	4	POST		4 MAINSUBS
	MON
OO	+15	SOLO	OO	+10

These controls range from off (∞) to +10 dB of gain when fully clockwise, to compensate for low-level effects.

Signals passing through the AUX RETURN level con-

PRE

POST

5

	+15	MON
OO			SOLO
			PRE
		6	POST
	+15	MON
OO			SOLO
		SUB ASSIGN
	L	L	L

MAIN MIX MAIN MIX MAIN MIX

R R R

CR/SUBS

PHONES 1-2

ONLY 3-4

L
MAIN MIX	POWER

R

trols proceed directly to the MAIN MIX bus where they are combined with the other channels just before the MAIN MIX fader [38].

39. AUX RETURN 4 to CR/PHONES ONLY

When this button is up, AUX RETURN 4 is routed to the MAIN MIX bus, just as the AUX RETURNS 1-3 are. When the button is down, the AUX RETURN 4 stereo signal is routed to the CR/PHONES matrix instead. It doesn’t matter if any of the SOURCE buttons are as- signed, but it will be interrupted, as usual, if a SOLO button is engaged.

18

SUB	SUB	SUB	SUB	MAIN
1	2	3	4	MIX
				10
				dB
				5
				U
				5
				10
				20
				30
				40
				50
				60
				OO

ONYX 1640

Let’s pretend you’re doing a live mix to a 2-track deck, a house PA, or both, and you want to play along to a click track. You could run the click track directly into the MAIN MIX, but you don’t want the mixdown deck or the audience to hear it. Oh yeah, you can route it to the control room and phones output instead! Similarly, it can be used for voice-over tracks, narration, anything you want heard by the engineer and players but not by the audience and mixdown deck.

40. EFX TO MON Level Controls

These controls route the signal from AUX RETURNS

1 and 2 to the AUX 5 and 6 SENDS. This allows you to use an external effects device, like a reverb or delay, exclusively for the monitors. When these controls are turned up, the stereo effects return signal is summed to mono and combined with the signals coming from all the channel AUX 5 and AUX 6 send controls.

If you want to add reverb or delay to the stage monitor mixes, these are the knobs for you. Operating independently of their respectively numbered AUX RETURNS level controls, these knobs are exactly the same as the AUX 5 and AUX 6 knobs found in the channel strip.