Bose Powered Acoustimass 30 User Manual

32
Channel Input Freq. Dist.
Bass 14mVrms (L+R) 100Hz <0.4%
Left 64mVrms (L) 9kHz <0.2%
Right 64mVrms (R) 9kHz <0.2%
Center 38mVrms (L+R) 9kHz <0.2%
Surround 30mVrms (L+R
180°out of phase)
9kHz <0.2%
TEST PROCEDURES
14. Large Signal Distortion
Note: Resistor loads connected only to the
channel under test.
Channel Output
Left < 350uVrms
Center < 600uVrms
Surround < 450uVrms
Right < 350uVrms
Bass < 2mVrms
11. Dynamic Equalization (volume control
dependent).
11.1 Apply a 37Hz, 1.0Vrms signal to the
left and right input (in phase). Reference a
dB meter to the applied signal. Set the unit
to test mode D. The bass channel output
should be -24.2 ± 1.5dBr relative to the
input.
11.2 Apply a 9.0kHz, 100mVrms signal to
the left and right channel inputs (in phase).
Reference a dB meter to the applied signal.
Set the unit to test mode D. The center
channel output should be -44.7 ± 1.5dBr
relative to the input.
12. Volume IC Mute Test
12.1 Master Volume Mute
Set the unit to test mode D. Apply a 100Hz,
1.6Vrms signal to the left and right channel
inputs (in phase). The bass channel output
should be ≤ 50mVrms.
12.2 Center Channel Mute
Set the unit to test mode F. Apply a 1.0kHz,
.5Vrms signal to the left and right channel
inputs (in phase). The center channel
output should be
≤ 30mVrms.
12.3 Surround Channel Mute
Set the unit to test mode F. Apply a 1.0kHz,
.5Vrms signal to the left and right channel
inputs (out of phase). The surround chan-
nel output should be ≤ 30mVrms.
Channel Output (DC)
Left < 15mV
Center < 40mV
Surround < 40mV
Right < 15mV
Bass < 15mV
17. Noise
Note: All measurements are A-weighted
except for the bass channel. The bass
channel should be loaded. All inputs
shorted.
15. Compressor Test
Note: Load resistors not connected.
Momentarily connect test mode B. Set the
line voltage to 85Vac.
15.1 Apply a 1.0Vrms, 1kHz signal to the
left and right inputs (in phase). The distor-
tion measured at the center channel output
should be < 10% THD.
15.2 Apply a 520mVrms, 100Hz signal to
the left and right inputs. The distortion
measured at the bass channel output
should be < 5%.
16. DC Offset
Note: No signal connected to the inputs.
AMPLIFIER TEST
13. Small Signal Distortion (.5 W output)
Note: All resistor loads connected, 30kHz
LPF. See test set-up parameters.
Channel Input Freq. Distortion
Bass 260mVrms 100Hz <0.2 %
Left 295mVrms 1kHz <0.2 %
Right 295mVrms 1kHz <0.2 %
Center 182mVrms 1kHz <0.2 %
Surround 156mVrms 1kHz <0.2 %

Bose Powered Acoustimass 30 Specifications

General

Brand	Bose
Model	Powered Acoustimass 30
Category	Speakers
Language	English