7
AMPLIFIER SECTION
Bass amplifier output power: 50 W
Treble amplifier output power: 50 W
Long term output power is limited by driver unit
protection circuitry.
Amplifier system distortion at nominal output:
THD < 0.05 %
Mains voltage: 100-240 V AC 50-60 Hz
Voltage operating range: ±10 %
Power consumption:
Idle 3 W
Standby (ISS active) <0.5 W
Full output 60 W
SYSTEM SPECIFICATIONS
Lower cut-off frequency, –6 dB: < 47 Hz
Upper cut-off frequency, –6 dB: > 25 kHz
Accuracy of frequency response:
54 Hz – 20 kHz (± 2.0 dB)
Maximum short term sine wave acoustic output on axis
in half space, averaged from 100 Hz to 3 kHz:
@ 1 m > 104 dB SPL
Maximum long term RMS acoustic output in same
conditions with IEC weighted noise (limited by driver unit
protection circuit): @ 1 m > 96 dB SPL
Maximum peak acoustic output per pair @ 1 m distance
with music material: > 110 dB
Self generated noise level in free field @ 1m on axis:
< 5 dB (A-weighted)
Harmonic distortion at 85 dB SPL @ 1m on axis:
Freq: 50…100 Hz < 2 %
>100 Hz < 0.5 %
Drivers: Bass 130 mm (5
in
) cone
Treble 19 mm (
3
/
4
in
) metal dome
Weight: 4.9 kg (10.8 lb)
Dimensions:
Height 285 mm (11
1
/
4
in
)
Width 189 mm (7
7
/
16
in
)
Depth 178 mm (7
1
/
16
in
)
CROSSOVER SECTION
Input connector: Balanced 10 kOhm 3 pin Euroblock
Input level for 100 dB SPL output at 1 m: -6 dBu
Level control range: -40 dB constantly variable
Crossover frequency, Bass/Treble: 3.0 kHz
Treble Tilt control operating range:
0 to +2 dB @ 15 kHz
Bass Roll-Off control: –4 dB @ 55 Hz
Bass Tilt control operating range in –2 dB steps:
0 to –6 dB @ 100 Hz
The ‘CAL’ position is with all tone controls set to ‘off’
and the level control to maximum (fully clockwise).
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