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8
Technical data
8.1
BTQ-VM4/VM8
Electrical
AC power input:
100 VAC ~ 240 VAC, 50/60 Hz
power consumption (AC):
idle
1/2 full power
full power
BTQ -VM425 / BTQ -VM825
(250W)
24W
195W
365W
BTQ- VM450 / BTQ -VM850
(500W)
24W
345W
645W
Idle: pilot tone -36 dB, 1/2 full power: alarm tone
DC power input:
43 ~ 56 VDC (type: 48VDC)
power consumption
(DC):
standby mode
idle
1/8 full power
1/2 full power
full power
BTQ -VM425 / BTQ -
VM825
(250W)
6.4W
22W
65W
175W
325W
BTQ -VM450 / BTQ -
VM850
(500W)
6.4W
22W
95W
310W
580W
Idle: pilot tone -36 dB, 1/8 full power: speech, 1/2 full power: alarm tone
Audio characteristics (general)
A/D-D/A bit resolution:
24 Bit
Sampling rate:
48 kHz
Frequency response:
20 Hz - 20 kHz (±1) dB @ 0 dBu
Input gain range:
0 ~ -15 dB (3 dB steps)
SNR:
> 80 dB
THD+N:
< 0.01 % @ 30 dB gain, -24 dBu (1 kHz) in
EIN:
< -80 dBu @ 0 dB gain
Maximum input level (CD/AUX/mic):
17 dBu
Maximum output level (line out):
17 dBu
Crosstalk:
> 90 dB @ 42 dB gain, 0 dBu (10 kHz) in
Audio characteristics (CD/AUX)
Input impedance:
5K ohm
Audio characteristics (MIC)
EIN:
< -112 dBu @ 24 dB gain
Input impedance:
8K ohm
Input gain range:
0 ~ 40 dB (adjust with mic/line gain)
CMRR:
< -80 dB @ 40 dB gain, -40 dBu (1 kHz) in
Phantom power:
48 VDC, 7 mA
Audio characteristics (EX. AMP/LINE OUT)
Output impedance (balanced):
30 ohm
Wattage capacity (input)