Neumann KH 350

The KH 350 is a high performance three way monitor combining deep low frequency extension and tightly controlled dispersion with advanced DSP integration. Optimized for medium-sized rooms and immersive environments, it delivers full range accuracy, refined midrange detail, and seamless room alignment via MA 1 (optional).

FEATURES

• Reliable full range reference with excellent translation

• Precise directivity for nearfield and midfield distances

• Deep LF extension (30 Hz ±3 dB) with impressive headroom

• DSP engine for improved performance and MA 1 room correction

• Ideal for immersive LCR and larger multichannel systems

• Seamless integration with network enabled KH subwoofers

The KH 350 expands Neumann’s portfolio into true midfield monitoring, delivering the power, low frequency authority and control required for listening distances ranging from 1.2 to 3 m (4 to 10 ft) and immersive production environments. As it shares Neumann’s consistent tonal DNA, the KH 350 may be combined with other KH-Line monitors in immersive setups.

The KH 350 impresses with deep and powerful low-end response, enormous headroom, and exceptional linearity across the entire musical spectrum (32 Hz – 20 kHz ±1.25 dB).

Neumann’s Mathematically Modeled Dispersion (MMD) waveguide shapes the sound radiation to deliver precise and consistent dispersion throughout the room. This ensures stable imaging and greatly reduces unwanted reflections, supporting accurate monitoring even at longer listening distances while remaining fully capable in nearfield setups.

Built on Neumann’s advanced DSP engine, the KH 350 supports MA 1 Automatic Monitor Alignment, offering highly accurate frequency and phase optimization. Analog and digital AES3id inputs (BNC) integrate seamlessly with Neumann’s KH subwoofers and monitor control solutions, enabling flexible system scalability from stereo to immersive environments. 

Industry leading tight manufacturing tolerances ensure consistent unit to unit matching and predictable performance across multi monitor installations: perfect translation to all playback systems for music production, mixing, and mastering in stereo or immersive formats, as well as film scores, broadcast, and post production workflows.

Controlled directivity for accurate monitoring from nearfield to midfield 
The advanced waveguide geometry guarantees stable imaging at recommended distances of 1.2 – 3.0 m (4 – 10 ft), while remaining fully capable in closer nearfield setups where higher LF authority and directivity control are crucial.

Deep and powerful low frequency extension for full range authority 
The bass reflex design provides powerful headroom and extension down to 30 Hz (±3 dB), delivering a reliable full range reference with excellent translation.

High resolution midrange performance for detailed, confident decision making
The KH 350 combines Neumann’s proven mid/tweeter platform with its MMD waveguide, delivering controlled midrange directivity and precise vocal definition optimized for its size class, longer listening distances, and immersive setups.

MA 1 ready for perfectly aligned stereo and multichannel setups
The integrated DSP platform enables precise MA 1 alignment, improving frequency and phase response in any room and ensuring consistent accuracy from stereo nearfields to complex immersive installations.

SPECIFICATIONS

Acoustics    
Free field frequency response ±6 dB: 27 Hz … 21 kHz
Free field frequency response ±3 dB: 30 Hz … 21 kHz
Pass band free field frequency response: 32 Hz … 20 kHz, ±1.25 dB
Free field frequency linearity deviation between 100 Hz and 10 kHz: ±0.8 dB
Self-generated noise at 10 cm (with input gain set to 100 dB SPL for 0 dBu): <20 dB(A) SPL
Sine wave output with a THD < 0.5 % at 1 m in half space: 95 dB SPL (>58 Hz)
Max. SPL calc. in half space at 3% THD at 1m (averaged between 100 Hz and 6 kHz): 122.6 dB SPL
Max. SPL in full space at 3% THD at 1m (averaged between 100 Hz and 6 kHz): 116.6 dB SPL
Bass capability: Max. SPL in half space at 3% THD at 1m (averaged between 50 Hz and 100 Hz): 109.7 dB SPL
Dolby D.A.R.D.T. Max SPL fullrange: 120 dB
Dolby D.A.R.D.T. Max SPL bass managed: 124 dB
Recommended Listening Distance: 1.2 … 3.0 m (4'… 10')
Feasible Listening Distance: 0.75 … 6.0 m (2'6"… 19')
Acoustic principle: Bassreflex
Acoustical Axis horizontal: 140 mm (middle)
Acoustical Axis vertical (from bottom): 405 mm

Analog Inputs and Outputs    
Analog input(s): XLR: analog electronically balanced
Analog input impedance: >12k Ohms
Max. input level: 24 dBu for 94 dB SPL setting; +14 dBu for 100 dB SPL setting; +9 dBu for 108 dB SPL setting; -1 dBu for 114 dB SPL setting
Common mode rejection ratio (CMRR): >56 dB @ 15kHz
Volume control: via MA 1 software
Volume control range; resolution: 0 … -∞ dB; 0.1 dB
Analog dynamic range; THD+N: 118 dB(A); -90 dB

Digital Inputs and Outputs    
Digital input(s): BNC (75 Ω): AES3id
Digital output(s): BNC (75 Ω): AES3id
Max. Input Level; pk-pk, unbalanced / balanced: 1.2 V
Digital converter: resolution; design: 24 Bit
Digital converter: sampling rate: 32 kHz..200 kHz
Digital internal sampling rate: 48 kHz
Output sample rate: identical to input sample rate
Latency ADA / DA: Analog Input,: 2.6 ms AES3id Input: 4.7 ms
Dynamic range A-D-A: 118 dB
Delay: Resolution: time; distance: 20.8 µs; 0.71 mm (0.28 ")
Delay: Time-of-flight maximum distance: 0 … 120 ms, 0 … 41.2 m (135')
Input gain control (sensitivity): 0 dB ... -15 dB
Output level control (output level in 1 m based on 0 dBu input level): 94; 100; 108; 114 dB SPL
Equalization: Bass: 0; -1; -2; -4 dB
Equalization: Low-Mid: 0; -1; -2; -3 dB
Equalization: Treble: '+1; 0; -1; -2 dB
Input selector: Analog; AES3id L; AES3id R; Mono
Ground Lift: Yes
Control: Local; Network
Mains Switch: Yes
Mains Voltage Select: Universal Power Supply 100 V~ … 240 V~

Electronics - Controller    
Controller design: Digital; active
DSP resolution: 32 Bit Audio, Processing 64 Bit double precision
Crossover frequency: 700 and 1700 Hz
Crossover slope: 24 dB / oct
Automatic room calibration via MA 1: Yes
FIR phase correction: Linear phase (60 Hz ... 18 kHz; +/- 45°)
Protection circuitry: Independent soft clip, peak and thermo limiters for woofer and tweeter; Woofer excursion limiter; thermo limiter for the electronics and amplifiers
Remote control: Via Ethernet and MA 1
Display: On; Normal Operation: Neumann logo “White”
Display: Identification: Neumann logo “Rosé”
Display: Limit / Clip / Errors / Protection /Boot Mute / Shut Down Mute: Neumann logo “Red”
Logo Brightness: via MA 1 software

Electronics - Amplifiers and Power Supply    
Output power woofer amplifier (THD+N with limiter deactivated: 10%): 300 W
Output power midrage amplifier (THD+N with limiter deactivated: 10%): 160 W
Output power tweeter amplifier (THD+N with limiter deactivated: 10%): 125 W
Output power woofer amplifier (THD+N with limiter deactivated: 0.1%): 185 W
Output power midrage amplifier (THD+N with limiter deactivated: 0.1%): 125 W
Output power tweeter amplifier (THD+N with limiter deactivated: 0.1%): 125 W
Mains Power Supply: input voltage; frequency: SMPS: 100-240 V; 50/60 Hz
Power consumption (230 V / 100 V): Standby: <300 mW
Power consumption (230 V / 100 V): Idle: 26 W
Power consumption (230 V / 100 V): Full output: 320 W
Standby: automatic, 20 mins (default)

Mechanics
Cabinet material: Composite polycarbonate front, wooden sleeve, 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: 210 mm (8 1/4")
Midrange: 75 mm (3") with magnetic sheilding
Tweeter: 25 mm (1") with protecting black metal grille
Mounting points: 2 x M8 on side panels; thread depth from outside of cabinet 25 mm (1”);
Product dimensions (height x width x depth): 545 x 280 x 363 mm (21 1/2" x 11" x 14 1/4")
Internal net volume: 35 liters
External net volume: 52 liters
Product weight: 20.0 kg; (44 lbs 1 oz)
Packed dimensions (height x width x depth), mm (inches): 649 x 474 x 399 mm; (25.6" x 18.7" x 15.7")
Packed weight: 24.8 kg; (54 lbs 11 oz)
Packed cube: 0.123 m³; (4.34 ft³)

What's in the Box:

• 1 x KH 350 II Monitor, anthracite

• 4 x Mains Cables, black (EU/KR, UK, US and CN)

• 1 x Safety Guide

• 1 x Supplement “Getting Started Quickly”