Essential Information About the Neumann KH 805 II Subwoofer
- Ultra-deep bass down to 16 Hz, high SPL level, and remarkably low distortion thanks to the 10-inch ELFF woofer and intelligent limiters.
- Amplification power approximately doubled compared to the KH 750 DSP to strengthen KH 150, KH 310 systems and beyond.
- Internal DSP processing and automatic alignment via MA 1, including multichannel extension (optional "MA 1 Multichannel Extension").
- 7.1 bass management, balanced XLR inputs/outputs, and BNC AES3/S/P-DIF digital input up to 192 kHz/24 bit.
A New Milestone in the KH Subwoofer Line
Big brother to the KH 750 DSP, the KH 805 II modernizes the KH 805 concept with increased power reserve and exemplary bass performance. Its long-excursion ELFF transducer, loaded in an optimized bass-reflex enclosure, pushes the response well below the audible threshold while preserving linearity. The result: a reference subwoofer to complement medium-sized monitors or drive immersive setups.
Intended Uses and Studios
The KH 805 II is aimed at demanding music, broadcast, and post-production studios. It integrates equally well into a nearfield stereo system as into a mixing or mastering control room and naturally fits into 5.1/7.1 multichannel setups where phase accuracy and LFE channel management are crucial.
Features Designed for Precise and Controlled Bass
ELFF Woofer and Optimized Loading: The 10-inch driver with an extremely linear force factor guarantees impeccable mechanical control. Combined with a rigid enclosure, a robust protective grille, and a port with inaudible noise, it delivers firm, fast, and breathless bass.
DSP and MA 1 Alignment: The onboard processing ensures tonal and temporal coherence of the system. With the MA 1 tool (sold separately), the KH 805 II aligns not only the frequency response but also the phase; even analog monitors like the discontinued KH 120 A, KH 310, or KH 420 benefit from complete stereo calibration.
Comprehensive Connectivity and 7.1 Bass Management: Two balanced XLR inputs/outputs, BNC AES3/S/P-DIF 24-bit/192 kHz digital input, multiple LFE modes, and fine gain adjustments allow seamless integration in stereo, multichannel, and hybrid workflows.
User Comfort: Disableable automatic standby, clear LED indicators (power, limiter/clipping, active bass management), and a wide level control range facilitate daily studio use.
Technical Specifications
Acoustics
- Frequency response (free field, -3 dB): 18 Hz - 310 Hz, +/- 3 dB
- Frequency response (free field, with bandpass filter): 19 Hz - 310 Hz, +/- 2 dB
- Self-noise level (at 10 cm): < 20 dB(A)
- THD: < 0.5% at 1 m from 45 Hz at 95 dB SPL
- Maximum SPL for 3% THD (half-space): 110.7 dB SPL
- Maximum sound pressure level, pink noise, half-space, at 1 m: 112 dB SPL
- Maximum SPL averaged between: 40 and 90 Hz
Inputs / Outputs and Processing
- Input/output channels: 7.1 / 7+Sum
- Analog inputs/outputs: Electronically balanced XLR
- Digital input (BNC): AES3 and S/P-DIF up to 192 kHz/24 bit
- Input impedance (floating balanced): XLR, 13 k?
- Input sensitivity: -8 and +6 dBu
- Maximum input level: +19 dBu (6.9 Vrms) per channel
- Common mode rejection ratio (CMRR): > 60 dB at 15 kHz
- Channel separation (at 1 kHz), level tolerance: -95 dB, +/- 0.1 dB
- Volume control range, resolution: 118 dB, 0.25 dB
- Dynamic range, distortion + noise: 119 dB(A), < 0.001% (-100 dB)
LFE / Bass Management
- LFE modes: 80+re-routing, 80, 120, wide
- LFE gain: 0 / +10 dB
- Gain adjustment: +2 ... -12 dB
Indicators and Power Supply
- Power-on indicator: red LED
- Limiter/clipping indicator: red LED (flashing)
- Active bass management indicator: green LED
- Mains voltage: 220-240 / 100-120 V AC switchable
- Power consumption (standby mode): 35 W
- Power consumption (nominal power): 290 W
- Disableable automatic standby via switch
Transducer and Construction
- Woofer: 265 mm (10 inches), long excursion, ELFF technology
- Rigid enclosure with bass-reflex port featuring inaudible port noise
- Robust front protective grille
Dimensions and Weight
- Dimensions (H x W x D): 368 x 330 x 645 mm
- Weight: 31.3 kg
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