Bose AMPLUS 50 User Manual

27
AMPLUS™ 50 TEST PROCEDURES
Test Setup Notes:
1. This amplifier is designed to be used
with balanced inputs at J1. If you have a
signal generator capable of supplying a
balanced input, refer to the balanced inputs
info in Table 9. If you can only drive the
amplifier using unbalanced (single-ended)
inputs, refer to the the unbalanced inputs
info in Table 9. Also refer to the appropriate
information (balanced or unbalanced) for
output levels in the various tables and text.
2. Before testing, make sure you have the
connectors for the inputs and outputs at J1,
J4, and J6. The part number for the
connector kit that includes J1, and J4 is
188620-001. The part number for the J6
connector is 190694-004 for the AmPlus 50
amplifier.
3. Be sure to set the unit switch positions in
accordance with Table 8. AmPlus 50 Initial
Switch Positions, before testing.
4. All tests are to be performed with the eq
card removed.
5. Definition of Signal Paths:
The three signal paths that are used during
testing are:
1. Source Input 1 to Speaker
Output 1 (4Ω).
2. Source Input 2 (summed with
channel 1) to Speaker Output 1 (4Ω).
3. Source Input 1 and 2 (summed
internally) to 70/ 100V Output.
6. For the following tests, refer to Tables 9
and 10 for Signal Input and Signal Output
connections.
7. For Gain, Response, and Distortion
tests, the unit shall be driven from a 600Ω
source. Measurement at the Speaker
Outputs shall be performed with a 4Ω,
100W load across the 4Ω outputs, and
with a 98Ω/100W load resistor across the
70/100V Speaker Output.
8. Unless otherwise noted, the remote
volume input (J4-1 to J4-2) is to be
terminated with a 10kΩ resistor.
9. Input Voltage Reference shall be
the actual input voltage present at the
input, not the open circuit generator output.
1. Gain Test;
Source Input to 70V/100V Speaker
Output
Note: Refer to Table 11. Source Input to
70/ 100V Speaker Output test table for the
following tests.
1.1 Set up the unit as listed in the Test
Setup Notes section.
1.2 Perform the Speaker CV Gain Test as
listed in Table 11.
1.3 Measure the Output Level using a
DMM at J6.
Table 11. Source Input to 70/100V Speaker Output test table
Test Freq. Input (J1) Output (J6)
Spkr CV Gain 1kHz 100mVrms 22.0V± 5.0Vrms (100/120V only)
32.0V±5.0Vrms (220/240V only)
Response 1kHz 1kHz 100mVrms 0dBr±0.5dB (REFERENCE)
Response 60Hz 60Hz 100mVrms +9.3dBr ± 1.0dB (balanced inputs)
+7.5dB±1.0dB (unbalanced inputs)
Response 10kHz 10kHz 100mVrms -0.25dBr ± 1.0dB (balanced inputs)
+9.0±1.0dB (unbalanced inputs)
THD 1kHz 100mVrms 0.2% + 0.8%
Noise none none -50dBV+ 10.0dBV

Bose AMPLUS 50 Specifications

General

Brand	Bose
Model	AMPLUS 50
Category	Amplifier
Language	English