26 | KH 810/870
Specifications
Acoustics
KH 870 KH810
-3 dB free field frequency response 18 Hz to 300 Hz, ±3 dB
Pass band free field frequency response 19 Hz to 300 Hz, ±2 dB
Self-generated noise
(with input gain set to 100 dB for 0 dBu)
< 20 dB(A) at 10 cm
Total harmonic distortion < 0.5 % at 95 dB SPL at 1 m >40 Hz >45 Hz
Max. SPL in half space with 3% THD at 1 m,
averaged between 40 Hz and 90 Hz
116.7 dB SPL 110.7 dB SPL
Max. SPL with pink noise in half space at 1 m, linear 118 dB SPL 112 dB SPL
Electronics
KH 870 KH810
Amplifier, continuous (peak) output power 320 W (400 W) 160 W (200 W)
THD and noise at continuous load < 0.1 % (-60 dB) with deactivated limiter
Controller design analog, active
Crossover frequency of main channels 80 Hz
Crossover slope 24 dB/oct., 4
th
order
Acoustical control | Low cut center frequency: 30 Hz
Q factor = 1.5
gain range: 0 to -12 dB
Acoustical control | Parametric equalizer bypassable
gain: +4 to -12 dB
frequency: 20 Hz to 120 Hz
Q factor: 1 to 8
Time of flight adjustment delay
0
º
to -315
º
, adjustable in steps of 45
º
Volume control 100 dB SPL, 114 dB SPL
Input sensitivity -12 dB ... +2 dB
Calibration tools internal signal generator
Protection circuitry peak and thermal limiters
Infrasonic filter frequency; slope 6.5 Hz; 12 dB/oct.
Remote control via cable remote control and RS-232
Analog inputs and outputs
Input/output channels 7.1 / 7+Sum
Impedance, electrically balanced XLR, 13 kΩ
Input sensitivity -8 dBu/ +6 dBu (switchable)
CMRR of inputs >60 dB at 15 kHz
Max. input level +19 dBu (6.9 V)
Cross-talk between channels (1 kHz) < -95 dB
Level matching ±0.1 dB
Volume control range
(via remote control)
118 dB,
0.25 dB steps
Dynamic range, THD+N 119 dB(A), < 0.001% at -100 dB
LFE modes 80 +re-routing, 80, 120, fullrange
LFE gain 0 dB / +10 dB (switchable)
Gain control +2 … -12 dB
EN