Neumann KH 805 II KH Series DSP Subwoofers

Next Generation Subwoofer
The KH 805 II improves on its predecessor in acoustic performance and adds new features. Thanks to a novel long-throw 10" woofer with Extremely Linear Force Factor (ELFF™) technology and intelligent protection limiters, the KH 805 II ensures exceptionally low distortion even at maximum SPLs.

The KH 805 II extends low frequency reproduction down to 16 Hz and delivers about twice the output of the KH 750 DSP. This makes the KH 805 II the perfect complement to mid-sized speakers such as the KH 150 and KH 310.

The KH 805 II is DSP-controlled for superior sonic performance and seamless integration via MA 1 Automatic Monitor Alignment (sold separately). When combined with analog Neumann studio monitors such as the KH 120 A (discontinued), KH 310, or KH 420, it offers sufficient DSP-power for aligning the entire stereo system using MA 1, optimizing not only the frequency response but also the phase. The KH 805 II is therefore a massive upgrade for existing systems. Of course, the KH 805 II is also a perfect complement to Neumann's DSP-equipped studio monitors.

Precision in Every Detail
As subwoofers are typically placed on the floor, a robust grille protects the driver from accidental damage. The rigid cabinet features a highly efficient bass reflex system, which is carefully engineered and tuned for the tightest bass reproduction - with inaudible port noise.

The two analog XLR inputs are electronically balanced, as are the two analog XLR outputs. The up to 192 kHz / 24-bit digital input (BNC) accepts both AES3 and S/P-DIF signals. The subwoofer has an Auto Standby function, which can be deactivated via a backplate switch.

The KH 805 II excels in music, broadcast, and post-production studios for tracking, mixing, and mastering.

Compact ultra stiff wooden cabinet
- Tough painted finish and build-in rubber feet for acoustic isolation
- Excellent self-damping properties leading to minimal cabinet resonances
- No standing wave resonances inside cabinet
- Ultra tight bass reproduction due to very low group delay

In-house modelled long-throw bass driver with Extremely Linear Force Factor™ (ELFF™) and robust resonance optimized basket
- Damping of breakup modes brings low distortion at high sound levels
- Extremely linear force factor provides low harmonic distortion even at high excursions
- Reduced air noise and minimized rocking modes
- Grille protects against mechanical damage

2.0/ 0.1 Bass Management
- Stereo and external bass managed applications
- Bypassable 4th order crossover for maximum compatibility with consumer reproduction systems
- Allows main loudspeakers to play louder and with lower distortion

Four routing modes
- Stereo 80 Hz bass management
- External bass management
- LFE up to 120 Hz
- LFE full range

XLR electronically balanced analog inputs and outputs
- Standard interfacing to professional equipment
- Daisy chain output for subwoofer arrays

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

Universal switched-mode power supply (100...240 V)
- One version works in any country and is robust to poor quality mains supply

Ground lift to overcome ground loops
- Inputs with very high CMRR to reduce noise induced by long cables in electrically noisy environments
- Completely symmetrical internal signal flow to avoid electrical interferences

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

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

Network connector using standard IP protocol and your existing network infrastructure
- Loudspeaker system including analog KH-line monitors can be controlled via MA 1 - Automatic Monitor Alignment Software.

Control function
- Toggle switch for selection of two completely independent modes of operation and calibration: on the device or via the network using the MA 1 - Automatic Monitor Alignment software.

Standby function
- Reduces power consumption when product is not in use.

Features

• Bass extension of the monitoring system down to 16 Hz
• Increasing the maximum SPL of the entire system
• Decreasing harmonic and intermodulation distortion of loudspeakers
• MA 1 Ready for perfect alignment of the entire system and seamless subwoofer integration
• MA 1 integration of analog KH Line speakers, enough DSP power for an entire stereo system

Specifications

- Free field frequency response +3 dB: 18...310 Hz
- Free field frequency response +6 dB: 16...750 Hz
- Self-generated noise at 10 cm (with input gain set to 100 dB SPL for 0 dBu): 13 kΩ
- Digital input(s): 1 x BNC (75 Ω): AES3; S/P-DIF
- Input gain control (sensitivity): 2 dB ... -12 dB
- Analog output(s): 2x XLR: analog electronically balanced
- Digital output(s): 1 x BNC (75 Ω): AES3
- Output level control (output level in 1 m based on 0 dBu input level): 94; 100; 108; 114 dB SPL
- Equalization: Low Cut: 30 Hz; 0...-12 dB
- Phase: 0; 45; 90; 135 and 0/180 deg
- Control: Local; Network
- Mains Voltage: Universal Power Supply 100 V~...240 V~
- Output power woofer amplifier (THD+N with limiter deactivated: 10%): 222 W
- Woofer: 265 mm (10") with protecting black metal grille
- Product dimensions (height x width x depth): 368 x 330 x 645mm (14.5" x 13" x 25.4")
- Product weight: 25.5 kg (56 lbs 3 oz)