Bose 2150 Specifications Page 17
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4.2 Rear panel (cont.)
9. REMOTE LEVEL (remote level) control
Use a 1k to 10k potentiometer, preferably with a reverse log taper. Identify the terminal of
the pot to which the wiper is connected when the knob is set to the fully clockwise
position. Connect this terminal to the RTN (ground return) terminal of the REMOTE LEVEL
input plug.
Connect the center terminal of the pot to the CH1 (or CH2) control voltage terminal of the
REMOTE LEVEL input plug. The two channels are independently controlled by the voltages
applied to the CH1 and CH2 terminals. Both control inputs can be connected together and
driven off the wiper of one pot.
Connect the remaining terminal of the pot to the +5V terminal of the REMOTE LEVEL input
plug. This connection will set the control voltage to 0 with the knob fully clockwise (maxi-
mum level), 5V with the knob fully counterclockwise (minimum level).
Inside the amplifier, a 0V control voltage corresponds to 0dB added attenuation (that is,
added to the attenuation already set by the front panel level control for that channel). A 5V
control voltage corresponds to 100dB added attenuation. The control voltage effect is “dB
linear”: a 2.5V control voltage input will add 50dB of attenuation: the control characteristic
is -1dB per 50mV.
REMOTE LEVEL control wiring recommendations
For best results, use 24AWG (or larger) control wiring, especially for the +5V and RTN
connections. Since 24AWG wire has DC resistance of 25mW per foot, using 1000 feet of
24AWG (total loop resistance of 50W) to make connection to a 5kW potentiometer will
result in a 1% voltage drop. This will cause a reduction in the control voltage range. This
voltage drop increases as more current is carried by the +5V and RTN conductors; for
example, when the 5V line is used to light a remote LED indicating that the amp is ON.
In the example given above, an additional 10mA load on the +5V and RTN conductors will
cause 10% reduction in control voltage range, yielding lower maximum level and higher
minimum level. Within reason, conductor capacitance is not a problem since the control
voltages are averaged in the amplifier and any additional RC delay will not be noticeable.
Note:
Do not connect the RTN conductor to a ground reference at the remote control
location. Ground potential differences will drive currents through the RTN line and cause
unpredictable REMOTE LEVEL control performance.
4.0 Operation
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
- M 2150 1
- Important Safety Instructions 2
- Where to find 3
- 2.1 Unpacking the amplifier 4
- 3.1 Using the Bose 5
- Model 2150 commercial power 5
- 3.2 General precautions 5
- 3.4 Thermal considerations 6
- 3.5 AC power considerations 6
- 4.1 Front Panel 7
- 4.1 Front Panel (Cont.) 8
- 4.2 Rear Panel 10
- 4.2 Rear panel (cont.) 11
- 4.2 Rear panel (cont.) 12
- Figure 7 14
- 4.0 Operation 14
- Figure 6 14
- Figure 8 15
- Figure 9 15
- 5.0 Installation 19
- Figure 13 19
- Figure 14 19
- Figure 15 19
- Figure 16 19
- 5.1 Installing Bose 20
- EQ Cards (cont.) 20
- 5.2 Input wiring 23
- Figure 28 24
- 5.2.2 Unbalanced operation 24
- Figure 27 24
- Figure 29 25
- Figure 30 26
- 5.3 Output wiring 27
- 5.3 Output wiring (cont.) 28
- 5.3.5 Stereo operation 29
- Figure 33 29
- 5.3.6 Bridged mono operation 30
- Figure 35 30
- Figure 34 30
- 5.3.7 Parallel mono 31
- 5.0 Installation 31
- Troubleshooting 32
- Warranty period 33
- 50 Commercial Power 34
- Amplifier 34
- Amplifier (cont.) 35
- Bose Corporation 38
- ©2002 Bose Corporation 39
- The Mountain, Framingham 39
- MA 01701-9168 USA 39
- 264080 AM Rev.00 JN20950 39
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