User's Manual

6
AMPLIFIER SECTION
CROSSOVER SECTIONSYSTEM SPECIFICATIONS
8040B 8050B
Lower cut-o frequency, -3 dB
Upper cut-o frequency, -3 dB
≤ 45 Hz
≥ 21 kHz
≤ 35 Hz
≥ 21 kHz
Free eld frequency response of
system (± 2.0 dB)
48 Hz - 20 kHz 38 Hz - 20 kHz
Maximum short term sine wave
acoustic output on axis in half
space, averaged from 100 Hz to
3 kHz
@ 1 m
@ 0.5 m
≥ 105 dB SPL
≥ 111 dB SPL
≥ 110 dB SPL
≥ 116 dB SPL
Maximum long term RMS acous-
tic output in same conditions
with IEC weighted noise (limited
by driver unit protection circuit)
@ 1 m
≥ 99 dB SPL ≥ 101 dB SPL
Maximum peak acoustic output
per pair above console top, @ 1
m distance with music material
≥ 115 dB SPL ≥ 120 dB SPL
Self generated noise level in free
eld @ 1m on axis (A-weighted)
≤ 10 dB ≤ 10 dB
Harmonic distortion at 90 dB SPL
@ 1m on axis
Freq. 50 to 100 Hz
> 100 Hz
< 2 %
< 0.5 %
< 2 %
< 0.5 %
Drivers:
Bass
Treble
Both drivers are
magnetically shielded
165 mm (6
1
/
2
in)
19 mm (
3
/
4
in)
metal dome
205 mm (8 in)
25 mm (1 in)
metal dome
Weight: 9.4 kg (20.7 lbs) 14.4 kg (31.7 lbs)
Dimensions:
Height (without table support
Height (including table support)
Width
Depth
350 mm (13
13
/
16
in)
365 mm (14
3
/
8
in)
237 mm (9
3
/
8
in)
223 mm (8
13
/
16
in)
433 mm (17
1
/
16
in)
452 mm (17
13
/
16
in)
286 mm (11
1
/
4
in)
278 mm (10
15
/
16
in)
8040B 8050B
Bass amplier short
term output power
Treble amplier short
term output power
Long term output power is limited
by driver unit protection circuitry
90 W
90 W
150 W
120 W
Amplier system distortion
at nominal output
THD
SMPTE-IM
CCIF-IM
DIM 100
≤ 0.05 %
≤ 0.05 %
≤ 0.05 %
≤ 0.05 %
≤ 0.05 %
≤ 0.05 %
≤ 0.05 %
≤ 0.05 %
Signal to Noise ratio, referred to
full output
Bass
Treble
≥ 100 dB
≥ 100 dB
≥ 100 dB
≥ 100 dB
Mains voltage 100, 120, 220 or 230 V
according to region
Voltage operating range ±10 % ±10 %
Power consumption
Idle
Standby
Full output
10 W
< 0.5 W
110 W
10 W
<0.5 W
170 W
8040B 8050B
Input connector XLR female Pin 1 gnd, pin 2 +, pin 3 -
Input impedance 10 kOhm balanced
Input level for maximum short term
output of 100 dB SPL @ 1m:
Adjustable from +6 to -6 dBu
Crossover frequency, Bass/Treble 3.0 kHz 1.8 kHz
Treble tilt control operating range
in
2 dB steps
From +2 to -4 dB
& MUTE @ 15 kHz
From +2 to -4 dB
& MUTE @ 15 kHz
Desktop low frequency control
operating range
-4 dB @ 160 Hz -4 dB @ 160 Hz
Bass roll-o control operating
range in 2 dB steps
From 0 to -6 dB
@ 45 Hz
From 0 to -6 dB
@ 35 Hz
Bass tilt control operating range in
2 dB steps
From 0 to -6 dB @
100 Hz & MUTE
From 0 to -6 dB @
100 Hz & MUTE
The 'CAL' position is with all tone con-
trols set to 'o' and the input sensitivity
control to maximum (fully clockwise)