11
English
4.0 Operation
4.2 Rear panel (cont.)
3. EQ out connectors
A
1
⁄
4
" TRS output connector provides access to an equalized line level output signal for each
channel. If equalizer cards are installed, this signal has passed through the internal equal-
izer, but has not passed through the amplifier itself. (For additional information on EQ cards,
see Input Modules on page 10.)
This is helpful if several devices are going to be driving similar Bose
®
loudspeakers (402
®
loudspeakers, for example) with the same source signal. With EQ cards installed in the
Model 2150 amplifier, the EQ OUT (output) of the amplifier can be connected to the line
level inputs of additional devices driving the same type of Bose loudspeakers (e.g. 402
loudspeakers). Be sure to use EQ cards that correspond to the type of loudspeakers.
4. Equalizer present LEDs
When you install an equalizer card, the corresponding LED illuminates to indicate the
presence of the card.
Each channel can utilize a different card. For example, the Bose Model 2150 commercial
power amplifier can have both a 402
®
and a 502
®
B equalizer card installed. When you install
a 502B card in either card position, it automatically selects the high frequency output of the
other card. When a system uses two or more amplifiers, and you are using a 502B module,
use the EQ BI-AMP/FULL RANGE switch to run in the bi-amp mode.
Note:
When EQ cards are installed, the input module recognizes the cards and switches to
the equalizer circuitry. If no cards are installed, the input module bypasses the equalizer
circuitry and no LED will illuminate.
J20018292
SEND
RECV
SEND RECV
120VAC, 4.6A max.
60 Hz
600W
This device complies with part 15 of the FCC rules. Operation is subject to the following
conditions: (1) This device may not cause harmful interference and (2) this device must
accept any interference received, including interference which may cause undesired operation.
Complies with Canadian ICES-003 Class A specifications.
PN# 1234567
SEQUENCE REMOTE LEVEL
WARNING
RISK OF HAZARDOUS
ENERGY! MAKE PROPER
SPEAKER CONNECTIONS.
SEE OPERATING
MANUAL BEFORE USING.
AVERTISSEMENT
ENERGIE ELECTRIQUE
DANGEREU SE. VOIR
LANOTICE
DE FONCTIONNEMENT.
++
COM CH2 CH1 +5V
Com
4
8
25V
35V
50V
70V
100V
Com
4
8
25V
35V
50V
70V
100V
For bridged operation.
Consult user manual.
Use Class 2 Wiring
FX CH 1
CH 2 CH 1
FX CH 2
CH 2 CH 1
D.O.M.:
SERIAL No.:
BOSE CORPORATION
FRAMINGHAM, MA 01701-9168 U.S.A.
MADE IN U.S.A. OF DOMESTIC AND FOREIGN COMPONENTS.
CAUTION AVIS
RISK OF ELECTRICAL SHOCK
DO NOT OPEN COVER,
AUTHORIZED PERSONNEL
ONLY.
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR CE CARTER,
RESERVE AU PERSONNEL
AUTORISE.
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
SND RCV
®
OFF
80 Hz
OFF
OUT
ON CLIP
120 Hz
ON HP
IN FX
OFF
80 Hz
OFF
OUT
ON CLIP
120 Hz
ON HP
IN FX
+
INPUT IMPEDANCE 25K OHMS EACH LEG TO GROUND (TOTAL 50K OHMS BALANCED)
SEQUENCE
EQUALIZATION
SEND RECEIVE
12
3
ON
CH2
CH1
INPUT CH 2 INPUT CH 1
CH2 EQ. OUT
CH1
12
3
12
3
PUSH PUSH
++
Model 2150
2
4
5
6
1
9
7
8
3
10
1
Standard Input Module
2
Input Connectors
3
EQ Out Connectors
4
Equalizer Present LEDs
5
Speaker Outputs
6
Effects Loop
7
Dip Switches
8
AC Power Sequence Connector
9
Remote Level Control
10
IEC Power Cord
AM264080_00_V.pdf • June 21, 2002
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