Martin Audio MA1.3s Rear Panel Features, Fan grille filters, Power switch, Clip limiter switch

CONTENTS

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		GUIDES

7. Fan grille filters

Two grilles with foam filters are located on the front panel to prevent dust from entering the amplifier. The grilles are removable for easy cleaning of the filters by simply pulling them off. The foam filters should always be used.

8. Power switch

Turns mains power on or off. (See page 8 and 12 )

4.3Rear Panel

1

2

3

4

5

6

?

4

3

1

Clip LimiterOn Off

A

CH. B

INPUT

CH.B LINK

CH.A LINK

CH. A

INPUT

OUTPUT CH.A

OUTPUT CH.B

LINK / BRIDGE A+B

GAIN

GAIN

CH.B

CH.A

STEREO

ON

GAIN

1 23

2 0dB

OFF

2 3dB

STEREO

BRIDGE

XLR

1 /4 “

2 6dB

1+ CH.B+

On

Off

1+ CH.A+

Pin 1+ Spk+

2 9dB

1- CH.B-

Pin 1

Scrn

Sleeve

1-

CH.A-

2- Spk-

2

Pos

Tip

3 2dB

2+ CH.B+

MARTIN AUDIO MA1.3sMade in the EEC by

3

Neg

Ring

3 5dB

Clip Limiter B

2-

CH.B-

3 8dB

Must be grounded

230-240V

50-60Hz41dB

Ser. No:

Current consumption: 8.7A

6 78

8

2

1. Output / Speaker connector

The Speakon connector from Neutrik may be unfamiliar to some users. A full description is found in the operation section. (See page 11).

2. Clip limiter switch

Turns the clip limiter “ON” (switch IN position) or “OFF” (switch OUT position). (See page 13).

3.Input signal XLR. Neutrik Combijack features also _” TRS phone jacks. (Pin 2 is “hot”, see page 10).

4.Link Input. XLR male connector connected in parallel to the female for linking the channel to another input.

5.Gain switch channel B. Three of the switches in the DIP-switch selects the maximum gain of the channel to be either 20, 23, 26, 29, 32, 36, 39 or 41 dB. (See page 5).

6.Link and Polarity reverse switch. Two of the switches in the DIP-switch are used for Link and Bridge operation. (See page 6).

7.Gain switch channel A. Three of the switches in the DIP-switch selects the maximum gain of the channel to be either 20, 23, 26, 29, 32, 36, 39 or 41 dB. (See page 5).

8.AC Mains cable. WARNING!

!	A label just below the mains cable on the rear of the amplifier indicates the selected AC mains
	operating voltage. Connect the mains cable only to the AC source referred to on the label.

5 REAR PANEL FEATURES

5.1Gain switch

The gain switch located on the rear panel (the central DIP-switch) changes the gain/input sensitivity of the amplifier. This can be useful when using low or high nominal input signals. Most professional mixing consoles operate at a nominal level of +4 to +6 dBu; the 32dB gain position ensures there is plenty of movement available of the output fader. For semi professional mixing desks operating at a nominal level of 0dB or -10dB the higher gain settings of the amplifier can be used.

ENGLISH

All material © 2007. Martin Audio Ltd. Subject to change without notice.

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Martin Audio – MA1.3s Amplifier