Rear panel

Monaural input channel input/output jacks

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INPUT

INPUT

INPUT

INPUT

INPUT

INPUT

INPUT

INPUT

1

INSERT

INSERT

INSERT

INSERT

INSERT

INSERT

INSERT

INSERT

I/O 0dB

I/O 0dB

I/O 0dB

I/O 0dB

I/O 0dB

I/O 0dB

I/O 0dB

I/O 0dB

2

A INPUT jacks

These are XLR-3-31 type input jacks (balanced). If the rear panel PHANTOM MASTER switch and the +48 V switch of the corresponding monaural input channel are on, phantom power will be supplied. The nominal input levels and pin wiring are as follows.

Nominal input

–26 dB pad switch= on / +10 dB to –34 dB

–26 dB pad switch= off / –16 dB to –60 dB

1(ground)

Male XLR plug

3 (cold)

2 (hot)

B INSERT I/O jacks

These are TRS phone jacks for inserting external effect units into each monaural input channel. The nominal level is 0 dB. The pin wiring is as follows.

 

1/4"

phone plug

Tip (send)

 

 

Tip (send)

 

 

 

Ring (return)

To processor’s input

 

1/4" TRS phone plug

Sleeve (ground)

 

 

Sleeve (ground)

1/4"

phone plug

Tip (return)

 

 

 

Connect to INSERT I/O jack

From processor’s output

Sleeve (ground)

M2500—Owner’s Manual 25

Page 29
Image 29
Yamaha M2500, Yamaha Mixing Consol owner manual Rear panel, Insert I/O jacks, Nominal input