APPLICATION DIAGRAMS

The following pages show some of the more common uses for the M•2600, including stereo, mono, and bridged operation.

USING THE LOW CUT FILTER

The application diagrams include some small graphs of the frequency range going into and coming out of the amplifier. These graphs show the effect of the LOW CUT FILTER to roll off the lower frequencies going to the speakers.

 

 

 

 

 

 

 

 

 

AMP MODE

LOW CUT FILTER

CROSSOVER

 

STEREO

 

 

 

 

TYPICAL

60Hz

90Hz

120Hz

MONO

BRIDGED

 

 

TYPICAL

 

 

 

35 Hz

 

 

 

 

 

F

ER

STAGE

 

 

 

 

 

 

 

O

 

MONITOR

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

W

 

 

100 Hz

 

 

 

 

 

 

 

U

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

OFF

170 Hz

 

 

 

 

 

CH's

 

 

 

 

 

 

 

SUMMED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT APPLICATION

 

 

 

 

 

 

 

 

 

FULL

LOW OUT

 

 

 

 

 

 

 

 

 

RANGE

(SUBWOOFER)

THRU

 

 

 

THRU

LOW

HIGH

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

OUT

OUT

 

ON

 

 

 

 

 

 

 

 

 

TYPICAL

 

 

 

 

SWITCHED OUTPUT

 

 

 

LIMITER

 

 

 

 

 

 

 

(CH1 & CH2)

 

Level, dB

5dB

0dB

–5dB

–10dB

–15dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HIGH PASS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The LOW CUT FILTER rolls off the lows be-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

low the frequency setting of the rotary control.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

It affects the Speaker output and the THRU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

output (if the THRU switch is set to HIGH OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hz

10

Hz

 

 

 

 

 

100Hz

 

 

 

 

 

 

1k

Hz

 

 

 

 

 

 

10kHz 20kHz

or LOW OUT).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Frequency, Hz

 

 

 

 

 

 

 

 

 

Low Cut Filter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Using the LOW CUT FILTER allows you to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tailor the output to the speakers so they receive only the frequency range they can handle. For example, if your speakers can reproduce the frequency range down to 35Hz, set the LOW CUT FILTER to 35Hz. If your main speakers can reproduce the full range, then set it to OFF.

In the hookup diagrams on pages 9–12 and page 15, this small icon is used to indicate that the lows have been rolled off by using the LOW CUT FILTER.

Note: Page 14 and 16 show the use of the internal CROSSOVER.

FULL PASS

This icon indicates that the full frequency range is passed, either to the speakers or to the THRU outputs. In the pages that follow, this also indicates a full-range signal coming from your mixer or preamp.

 

LOW PASS

 

This icon indicates that the highs have been

 

rolled off. The low-pass range is available if you

 

use the internal CROSSOVER, discussed in

 

more detail on page 13, with some application

8

diagrams on pages 14, 15, and 16.