Yamaha MD8 owner manual Patching in Signal Processors, From processor’s output

50 Recording & Mixing Techniques

Patching in Signal Processors

Input channels 1 and 2 feature INSERT I/O jacks. These make it easy to patch external signal processors directly into these two channels. Typically, compressors, limiters, and noise gates are used for this type of connection. Reverb, delay, and other effects processors can be used too.

The INSERT I/O connections, which use TRS (Tip, Ring, Sleeve) phone jacks, are two-way connections, with the tip carrying the output signal from the MD8 to the external processor and the ring carrying the output signal from the external processor back into the MD8. You need special insert cables to do this. A wiring diagram for an insert cable is shown below.

To processor’s input

Connect to MD8 INSERT I/O

	Sleeve Tip
Sleeve
Ring (return)
Tip (send)	From processor’s output

The following illustration shows how to connect an external processor to the MD8’s INSERTs. Other equipment has been removed for clarity.

Signal processor

88

Input Output

Insert cable

AUX SEND			12	LINE INPUT			9	8	7	6	5	MIC/LINE INPUT			2			1
2	1			11	10							4	3	INSERT I/O		INSERT I/O
																MIC/LINE
MONITOR OUT		STEREO OUT		2TR IN					TRACK DIRECT OUT					2		IN (BAL)		1
R	L	R	L	R	L	8	7	6	5	4	3	2	1
															2	1	2	1
															3			3
														ON OFF	1: GMD 2: HOT 3: COLD DC48V
														PHANTOM				MAX. 7mA

POWER

AC IN ON OFF THRU OUT IN

MID

Once connected, operation is the same as normal. The signal source for the external proces- sor is taken after the channel’s EQ section. The output signal from the external processor is then returned into the channel just before the fader. The processed signal can be assigned to the groups, sent to the Stereo bus, or to the auxiliary sends.

MD8—Owner’s Manual