Neumann KH 870
Neumann KH 870
Neumann KH 870
Neumann KH 870

Neumann KH 870

Price
$3,595
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Georg Neumann GmbH - Professional Monitoring

General Description

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 870 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 inputs 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 870 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. The KH 870 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

 

 

General Description

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 870 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 inputs 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 870 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. The KH 870 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

Features

Flexible electronics

Robust drivers and cabinet

Extensive accessories range

Block Diagram (Download)

Technical Data

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

> 40 Hz

Max. SPL In half space at 3% THD

116.7 dB SPL

Max. SPL with pink noise in half space at 1 m

118 dB SPL

Averaged between

40 and 90 Hz

Electronics

Amplifier, cont. (peak) output power (THD < 0,1 %)

320 W (400 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), - 180° 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

Impedanz 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

25 W

Power consumption - Full output

550 W

Mechanics

Cabinet surface finish

Painted

Color: standard

Anthracite (RAL 7021)

Baffle cover

Included metal grille

Drivers

Magnetically shielded

Woofer

2 x 265 mm (10")

Product dimensions
(height x width x depth), mm (inches)

735 x 330 x 645 mm, (28.9" x 13" x 25.4")

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")

Internal net volume

86 l

External volume

156 l

Weight

47,1 kg (103.6 lbs)

Delivery includes

1x KH 870
3x Power cables (Euro, UK, USA)
1x Operating manual
1x Supplement "Getting Started Quickly"

 

Accessories     

Mounting an O 410 on a KH 870
O 410 + LH 41 + LH 28 + pole + KH 870
O 410 + LH 41 + LH 36 + LH 28 + pole + KH 870
O 410 + LH 41 + LH 36 + LH 37 + KH 870
O 410 + LH 41 + LH 37  + KH 870

Mounting a KH 310 on a KH 870
KH 310 + LH 25 + LH 28 + pole + KH 870
KH 310 + LH 25 + LH 37 + KH 870
KH 310 + LH 41 + LH 28 + pole + KH 870
KH 310 + LH 41 + LH 37 + KH 870
KH 310 + LH 41 + LH 36 + LH 28 + pole + KH 870
KH 310 + LH 41 + LH 36 + LH 37 + KH 870

Mounting a KH 120 on a KH 870
KH 120 + LH 61 + LH 28 + pole + KH 870
KH 120 + LH 61 + LH 37 + KH 870

Other accessories
FO 870, LH 37, , REK 3, NRC 1

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