The KH 810 subwoofer is designed to complement our extensive range of monitors, and can be used on its own, or daisy-chained to make larger systems capable of higher SPL.
As consumer technology advances at ever faster rates, professional technology increasingly finds itself trying to keep up. An example of this is the advent of the Blu-ray and other high definition formats that have increased the audio channel count to 7.1.
The KH 810 is an answer to these new demands by offering a new 7.1 High Definition Bass Manager. This is compatible with all standard consumer formats from mono through to the latest 7.1 HD systems. Eight channels of analog ensures flexible interconnectivity for modern studios. Four-mode LFE-channel processing guarantees compatibility across all formats and industries. Forth-order crossovers and flexible acoustical controls allow for seamless system integration. Built-in volume control and a hardware remote control allows for centralized system control independent of the source, and the electronics can be remote located to reduce cabling
The latest amplifier technology and acoustical components have been used to ensure the most accurate sound reproduction possible. Robust drivers, a rock-solid cabinet, and carefully designed ports guarantee a tight, articulate, and distortion-free low frequency reproduction, even at high replay levels. Using the sum output, Plane Wave Bass Array (PWBA) techniques acoustically improves lateral consistency in the listening area. The bass extends down to 18 Hz.
The KH 810 can be used in music, broadcast, and post production studios for tracking, mixing, and mastering. The cabinet can be positioned next to a wall or flush mounted into a wall due to the front mounted port, and can be mixed freely in multichannel systems with other loudspeakers from our range - Product Selection Guide.
7.1 Channel High Definition Bass Management compatible with all formats from mono to 7.1Bypassable 4th order 80 Hz active crossover for maximum compatibility with consumer reproduction0 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 channelsSystem wide volume control via optional hardware remote controls or RS-232Acoustical controls adapt the subwoofer's response to the environment - Output level
- Low cut
- Parametric equalizer
- 45° step phase control with a built-in test signal
Larger systems and Plane Wave Bass Arrays maybe constructed using the Sum outputRemoteable electronics (REK 2 and an SC nn) for installation convenience, less cabling, and convenience of useIntegrated electronic limiter for amplifier and driver protectionLow heat dissipation amplifierElectronics 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 HzLow distortion magnetically shielded long-throw driverReduced bass compression at high SPL from generously proportioned bass reflex portsAllows main loudspeakers to play louder and with lower distortionWooden cabinet with a tough painted finish (anthracite or silver) and high density rubber isolating feetExcellent self-damping properties leading to minimal cabinet resonancesCabinet look conforms to the family design
3 dB free field frequency response: 18 - 300 Hz, ± 3 dBPass band free field frequency response: 19 - 300 Hz, ± 2 dBSelf-generated noise level at 10 cm: < 20 dB(A)Total harmonic distortion < 0.5 % at 95 dB SPL at 1 m: > 45 HzMax. SPL In half space at 3% THD: 110.7 dB SPLMax. SPL with pink noise In half space at 1 m: 112 dB SPLAveraged between: 40 and 90 Hz
Amplifier, cont. (peak) output power (THD < 0,1 %): 160 W (200 W)Controller design: Analog, activeMain channel crossover frequency: 80 HzCrossover slope: 24 dB/octEqualization: Low cut: 30 Hz, 0 ... 12 dBParametric Equalizer: BypassableParametric Equalizer - Gain: +4 ... 12 dBParametric Equalizer - Frequency: 20 ... 120 HzParametric Equalizer - Q: 1 ... 8Time of Flight adjustment delay: 0 ... 4.69 ms @ 80 Hz (4-step 0, 45, 90, 135), - 180° SwitchVolume Control: Hardware remote or RS-232Calibration Tools: Internal signal generatorProtection circuitry: Peak and Thermo LimitersInfrasonic filter frequency; slope: 6.5 Hz; 12 dB/oct.Remote control: On a CAT-5Input/Output channels: 7.1 / 7+SumImpedance electrically balanced: XLR, 13 kInput sensitivity: 8 and +6 dBuMax. input level: +19 dBu (6.9 Vrms) / per channelCMRR: > 60 dB @ 15 kHzInterchannel isolation (1 kHz), level matching: 95 dB, ±0.1 dBVolume control range, resolution: 118 dB, 0.25 dBDynamic range, THD+N: 119 dB(A), <0. 001% (-100 dB)LFE Modes: 80+re-routing, 80, 120, wideLFE Gain: 0 / +10 dBGain Control: +2 ... 12 dB
Displays and indicators: power on: Red LEDlimit/clip: Red LED "Flashing"bass management active: Green LEDMains power: 220 - 240 / 100 - 120 V AC (switchable)Power consumption - Idle: 20 WPower consumption - Full output: 290 W
Cabinet surface finish: PaintedColor: standard: Anthracite (RAL 7021)Baffle cover: Included metal grilleDrivers: Magnetically shieldedWoofer: 265 mm (10")Height x width x depth: 360 x 330 x 645 mm (14.2" x 13" x 25.4")Internal net volume: 41.5 lExternal volume: 76.6 lWeight: 26 kg (57.2 lbs)Delivery includes: 1x KH 810, 3x Power cables (Euro, UK, USA), 1x Operating manual, 1x Supplement "Getting Started Quickly"