Owner`s manual

GAIN
32dB
0.775V
CH A N NEL 3
ALONELI NK
GAIN
32dB
0.775V
CH A N NEL 4
ALONELI NK
CH A N NEL 1
GAIN
32dB
0.775V
GAIN
32dB
0.775V
CH A N NEL 2
ALONELI NK
SIG N AL IN PU T TERMINAL
CA UTI O N: TU RN OF F A MPL IFI ER BE FOR E C H ANG ING T HIS SW ITCH
SPEAKER OUTPUT T ERMIN A L
CA UTI O N: SP E AKER C O NN ECTI ON WIT H 8 ohm MI N IMP EDA NCE
CH A N NEL 1 CH A N NEL 2 CH A N NEL 3 CH A N NEL 4
360120725500
MODEL: A -4
CALIFORNIA , UN IT ED S TA TE S OF AMERICA
E-mail: sa le s@ be tt er mu si cb uilder.com
w w w . B e t t e r M u s i c B u i l d e r . c o m
ENGINEER ED A ND D ES IG N IN U .S.A.
SAFETY
MARK
USA 120798-1029611-28
SERIAL NO.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUT ION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
FUSE
AC-POWER
AC 120V 60Hz
14
CONTROLS AND FUNCTIONS
Amplifier
FRONT PANEL:
CHANNEL-2 SIGNAL LEVEL LED INDICATOR
CHANNEL-2 GAIN CONTROL
CHANNEL-1 SIGNAL LEVEL LED INDICATOR
CHANNEL-1 GAIN CONTROL
ANTI-DUST VENTILATION GRILL
1
POWER SWITCH ON/OFF
CHANNEL-4 SIGNAL LEVEL LED INDICATOR
CHANNEL-4 GAIN CONTROL
CHANNEL-3 SIGNAL LEVEL LED INDICATOR
CHANNEL-3 GAIN CONTROL
2
3
4
5
6
7
8
9
10
REAR PANEL:
FUSE: Housing for the power supply fuse.
AUDIO (XLR) INPUT
AC-POWER CABLE
11 14
LINK/ALONE MODE
GAIN SWITCH
SPEAKER OUTPUT TERMINAL
12
13
15
16
CH A NNEL 4
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VO L
CH A NNEL 3
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
CH A NNEL 2
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
CH A NNEL 1
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POW E R
A-4
10
1 2 3 4 5 6 7 8 9
16
13
15
1411 12