KH 810 – Active Studio Subwoofer

KH 810 – Active Studio Subwoofer



Flexible electronics 

7.1 Channel High Definition Bass Management™ compatible with all formats from mono to 7.1

Bypassable 4th order 80 Hz active crossover for maximum compatibility with consumer reproduction

0 and +10 dB LFE gain and 4-mode LFE processing:

LFE to subwoofer and left/right

LFE to subwoofer only up to 80 Hz

LFE to subwoofer only up to 120 Hz

LFE to subwoofer with no filtering – for daisy chaining subwoofers and external signal processing systems

Independent control of bass management for front and back channels

Built-in 8 channel system volume control with remote control: NRC 1 and RS-232

Acoustical controls adapt the subwoofer’s response to the environment

Output level

Low cut

Parametric equalizer

45° step phase control

Larger systems and Plane Wave Bass Arrays™ maybe constructed using the Daisy Chain output

Remoteable electronics (REK 3) for installation convenience, less cabling, and convenience of use  

Integrated electronic limiter for amplifier and driver protection

Low heat dissipation amplifier

Electronics can be remotely powered on with two modes of operation (0 V and 12 V trigger)

 

Robust driver and cabinet

Low frequency extension for main loudspeakers down to 18 Hz

Low distortion magnetically shielded long-throw driver

Reduced bass compression at high SPL from generously proportioned bass reflex ports

Allows main loudspeakers to play louder and with lower distortion

Wooden cabinet with a tough painted finish (anthracite or silver) and high density rubber isolating feet

Excellent self-damping properties leading to minimal cabinet resonances

Cabinet look conforms to the family design

 

Extensive accessories range

Remote controls (NRC 1, SEA 1)

Remote electronics Kit (REK 3)

Flight case (FO 810) 

 

Acoustics
−3 dB free field frequency response 18 – 300 Hz, ± 3 dB
Pass band free field frequency response 19 – 300 Hz, ± 2 dB
Self-generated noise level at 10 cm < 20 dB(A)
Total harmonic distortion < 0.5 % at 95 dB SPL at 1 m > 45 Hz
Max. SPL In half space at 3% THD 110.7 dB SPL
Max. SPL with pink noise In half space at 1 m 112 dB SPL
Averaged between 40 and 90 Hz
Electronics
Amplifier, cont. (peak) output power (THD < 0,1 %) 160 W (200 W)
Controller design Analog, active
Main channel crossover frequency 80 Hz
Crossover slope 24 dB/oct
Equalization: Low cut 30 Hz, 0 … −12 dB
Parametric Equalizer Bypassable
Parametric Equalizer – Gain +4 … −12 dB
Parametric Equalizer – Frequency 20 … 120 Hz
Parametric Equalizer – Q 1 … 8
Time of Flight adjustment delay 0 … 4.69 ms @ 80 Hz (4-step 0, 45, 90, 135), – 180º Switch
Volume Control Hardware remote or RS-232
Calibration Tools Internal signal generator
Protection circuitry Peak and Thermo Limiters
Infrasonic filter frequency; slope 6.5 Hz; 12 dB/oct.
Remote control On a CAT-5
Analog Inputs and Outputs
Input/Output channels 7.1 / 7+Sum
Impedance electrically balanced XLR, 13 kΩ
Input sensitivity −8 and +6 dBu
Max. input level +19 dBu (6.9 Vrms) / per channel
CMRR > 60 dB @ 15 kHz
Interchannel isolation (1 kHz), level matching −95 dB, ±0.1 dB
Volume control range, resolution 118 dB, 0.25 dB
Dynamic range, THD+N 119 dB(A), <0. 001% (-100 dB)
LFE Modes 80+re-routing, 80, 120, wide
LFE Gain 0 / +10 dB
Gain Control +2 … −12 dB
Displays and indicators: power on Red LED
– limit/clip Red LED Flashing
– bass management active Green LED
Mains power 220 – 240 / 100 – 120 V AC (switchable)
Power consumption – Idle 20 W
Power consumption – Full output 290 W
Mechanics
Cabinet surface finish Painted
Color: standard Anthracite (RAL 7021)
Baffle cover Included metal grille
Drivers Magnetically shielded
Woofer 265 mm (10″)
Product dimensions
(height x width x depth), mm (inches)
360 x 330 x 645 mm
(14.2″ x 13″ x 25.4″)
Packed dimensions
(height x width x depth), mm (inches)
515 x 490 x 750 mm,
(20 1/4″ x 19 1/4″ x 29 1/2″)
Net volume, internal / external 41.5 l /76.6 liters
Product weight 26 kg (57 lbs 5 oz)
Packed weight and cube 32.0 kg (70 lbs 9 oz), 0.1893 m³
Delivery includes 1x KH 810
3x Power cables (Euro, UK, USA)
1x Operating manual
1x Supplement “Getting Started Quickly”
Accessories FO 810, REK 3, SEA 1, NRC 1