Neumann | Studio Subwoofer | KH 870
KH 80 DSP | KH 120 A | KH 150 | KH 310A | KH 420 | KH 750 DSP | KH 810 | KH 870 | NDH 20 | NDH 30
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More power. Same precision.
The KH 870 is an answer to the demands by offering a 7.1 High Definition Bass Manager™. The flexibility of this bypassable 7.1 bass manager means it is also 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. From Mono to 3D, there are uses for the KH 870 in many different system configurations.
Neumann | KH 870
Acoustics Free field frequency response ±6 dB 17 … 600 Hz Free field frequency response ±3 dB 18 … 300 Hz Pass band free field frequency response 19 … 300 Hz, ±2 dB Reproduction accuracy between 50 Hz and 100 Hz: 100%, 80%, 50% of subwoofers produced ±1.20; ±0.54; ±0.28 dB Sine wave output with a THD < 0.5 % at 1 m in half space 95 dB SPL (>40 Hz) Bass capability: Max. SPL in half space at 3% THD at 1m (averaged between 50 Hz and 100 Hz) 116.7 dB SPL Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair full range) 118 dB SPL Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair with subwoofer) 118 dB SPL Dolby DARDT. Max SPL bass managed 125 dB Acoustical Principle Bassreflex, Ports at the front headine Analog Inputs and Outputs Analog input(s) 8 x XLR: analog electronically balanced Analog input impedance >13k Ohms Max. input level +19 dBu Common mode rejection ratio (CMRR) > 56 dB @ 15 kHz Volume control NRC 1 hardware remote or RS-232 Volume control range; resolution 118 dB; 0.25 dB Analog dynamic range; THD+N (A-D-A) 119 dB(A); <0.001% (-100 dB) User Interface Input gain control (sensitivity) +2 ... -12 dB Output level control (output level in 1 m based on 0 dBu input level) 100; 114 dB SPL Electronics - Controller Controller design Analog, active Crossover frequency 80 Hz Crossover slope 24 dB/oct; 4th order Protection circuitry Peak and thermo limiters Infrasonic filter: frequency; slope 6.5 Hz; 12 dB/oct. Remote control RJ45 connector: Via NRC1 remote control (optional): volume for all channels; bass management on/off; LFE gain 0/10 dB. Via RS-232: more parameters remote controllable Display: On; Normal Operation Red LED Display: Limit / Clip / Errors / Protection /Boot Mute / Shut Down Mute Red LED healine Electronics - Amplifiers and Power Supply Output power woofer amplifier (THD+N with limiter deactivated: 10%) 400 W Output power woofer amplifier (THD+N with limiter deactivated: 0.1%) 320 W Power consumption (230 V / 100 V): Idle 25 W Power consumption (230 V / 100 V): Full output 550 W Mechanics Cabinet material Wood cabinet, aluminum electronics panel Cabinet surface finish; color (front / back) Painted; metallic anthracite (RAL 7021) / black (RAL 9005) Operating conditions +10° C to +40° C (+50° F to +104° F); <75% RH, non-condensing Transport/storage conditions -25° C to +60° C (-13° F to 140° F); <90% RH; non-condensing Woofer 2 x 265 mm (10") with magnetic shielding and protecting black metal grille Mounting points 35 mm flange on top panel Product dimensions (height x width x depth) 735 x 330 x 645 mm (28.9" x 13" x 25.4") External net volume 156 liters Product weight 47.1 kg (103 lbs 13 oz) Packed dimensions (height x width x depth), mm (inches) 860 x 470 x 770 mm (33 7/8" x 18 1/2" x 30 3/8") Packed weight 54.3 kg (119 lbs 11 oz) Packed cube 0.311 m³ Delivery includes 1 x KH 870 G Mains cables EU/KC; UK; US; CCC, 1 x Getting Started Quickly guide, 1 x Operating Manual Acoustical Axis horizontal 165 mm Acoustical Axis vertical (from bottom) 360 mm
