Neumann KH 750 DSP D G Active DSP Subwoofer with 2.0 / 0.1 Bass Manager

The newly designed 10” long-throw driver has a strong linear working magnet system with ELFF™ technology (Extremely Linear Force Factor™). As subwoofers are usually placed on the floor, a robust grille protects the driver from accidental damage. The ultra-compact cabinet is a closed design which brings the fastest possible transient response.

The two analog XLR inputs are balanced as are the two analog XLR outputs. The 192 kHz / 24-bit digital input can accept AES3 and S/P-DIF signals. There is a bypassable standby function and the switch-off time can be adjusted in the Neumann.Control iPad® app.

The KH 750 DSP can be used in music, broadcast, and post production studios for tracking, mixing, and mastering.

APPLICATIONS

• Increasing the bass extension of the monitoring system
• Increasing the maximum SPL of loudspeakers
• Decreasing harmonic and intermodulation distortion of loudspeakers
• Reproducing the LFE channel
• Reproducing the “Sub” signal of a bass managed multichannel source
• Working as an extension for KH line subwoofer systems

• The compact KH 750 DSP is the ideal choice for smaller rooms and smaller studio monitors. It has a unique and flexible Bass Manager (2.0/0.1), analog and digital inputs, four routing modes and adaptable acoustical controls to be used in many different configurations.

  In addition to its outstanding acoustic properties this DSP-based subwoofer offers functions for the Neumann monitors connected to its outputs regarding the interplay with the following tools:

  • Automatic Monitor Alignment – Automatic room correction of stereo systems using the Neumann MA 1 measurement microphone (software for Mac/PC)
  • Neumann.Control – Free iPad®-App for setup, operation, and room correction of stereo systems via guided and/or manual alignment

  This also applies to all non DSP-based Neumann monitors connected (analog) to the KH 750 DSP, which enables them to make use of the subwoofer’s DSP power.

Features

Compact ultra stiff wooden cabinet

• Tough painted finish and high density rubber isolating feet
• Excellent self-damping properties leading to minimal cabinet resonances
• No standing wave resonances inside cabinet
• Tight bass sound due to very low group delay

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In-house modelled long-throw bass driver with Extremely Linear Force Factor™ (ELFF™) and robust built-in grille

• Damping of break up modes brings low distortion at high sound levels
• Extremely linear force factor provides low harmonic distortion even at high excursions
• Reduced air noise and improved rocking modes
• Grille protects against mechanical damage

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2.0/ 0.1 Bass Management

• Stereo and externally bass managed applications
• Bypassable 4th order crossover for maximum compatibility with consumer reproduction systems
• Allows main loudspeakers to play louder and with lower distortion

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Four routing modes

• Stereo 80 Hz bass management
• External bass management
• LFE up to 120 Hz
• LFE full range

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XLR electronically balanced analog inputs and outputs

• Standard interfacing to professional equipment
• Daisy chain output for subwoofer arrays

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Wide range input gain and output level controls

• Easier interfacing with signal sources

8-position phase control, continuous low cut control

• More control in various acoustical environments
• Easy to correct room modes

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Universal switched-mode power supply (100 … 240 V)

• One version works in any country and robust to poor quality mains supply

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Ground lift

• Reduced noise in electrically noisy environments and overcomes ground loops

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Low heat dissipation amplifiers with large headroom and sophisticated protection circuitry

• Improved transient response
• Assured reliability and safety

Separate thermo limiter to protect the voice coil and power amplifier

• Soft clip and excursion limiters
• Increases system reliability
• Allows extraction of the maximum performance from the system

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Digital input and output

• 192 kHz, 24-bit conversion
• BNC connector: AES3 and S/P-DIF signals

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Network connector using standard IP protocol and your existing network infrastructure

• Loudspeaker system can be controlled via the Neumann.Control iPad®-App and the MA 1 - Automatic Monitor Alignment Software.

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Control function

• Toggle switch for selection of operation and calibration on the device or via the network using the Neumann.Control iPad® app and the MA 1 - Automatic Monitor Alignment software.

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Input selector switch

• For switching the input source from analog / digital AES3 (automatic) to AES67.

More features (with Neumann.Control iPad® app)

• Lip-sync delay (100 ms): To align audio and video signals up to 2.5 frames at 50 Hz or 3 frames at 60 Hz
• Time-of-flight delay (2 x 20.8 ms): To compensate for listening distance differences up to 7.2 m (12 ft 5 in)