Neumann KH 350 – Three-Way DSP-Powered Midfield Monitor [SINGLE]

OVERVIEW

The Neumann KH 350 brings true midfield monitoring capability to the KH-Line, combining powerful low-frequency extension, enormous headroom and tightly controlled dispersion with the accuracy expected from a professional reference monitor. Optimised for listening distances of 1.2–3.0 metres (4–10 ft), it is equally capable in closer nearfield applications where greater low-frequency authority and directivity control are beneficial. Its bass-reflex design extends the response down to 30 Hz ±3 dB, while the monitor achieves a passband free-field response of 32 Hz–20 kHz at ±1.25 dB. Tight manufacturing tolerances provide consistent unit-to-unit matching, supporting predictable performance in multi-monitor installations and reliable translation across playback systems.

The KH 350’s Mathematically Modelled Dispersion (MMD) waveguide shapes the acoustic radiation for precise and consistent directivity, helping maintain stable imaging while reducing unwanted room reflections. Neumann’s proven midrange and tweeter platform provides high-resolution midrange performance and precise vocal definition, while the three-way architecture separates the frequency range at 700 Hz and 1.7 kHz. The integrated DSP platform provides 32-bit audio processing with 64-bit double precision, linear-phase FIR correction and MA 1 Automatic Monitor Alignment for highly accurate frequency and phase optimisation in the listening environment.

Analogue electronically balanced XLR connectivity is complemented by AES3id digital input and output via 75 Ω BNC, allowing the KH 350 to integrate seamlessly with Neumann KH subwoofers, monitor control solutions and network-enabled systems. The monitor is suited to music production, mixing and mastering, broadcast, post-production, film-score work and stereo, multichannel and immersive formats including Dolby Atmos®. Its consistent tonal character allows it to be combined with other KH-Line monitors in immersive configurations.

KEY HIGHLIGHTS

Full-Range Authority from Nearfield to Midfield

The KH 350 combines the output capability, low-frequency authority and directivity control required for true midfield monitoring while remaining highly effective at shorter nearfield distances. It is optimised for medium-sized rooms and listening distances of 1.2–3.0 metres, with a feasible listening range extending from 0.75–6.0 metres according to the published specifications.

Controlled Directivity with MMD Waveguide

Neumann’s Mathematically Modelled Dispersion waveguide shapes the sound radiation to provide precise and consistent dispersion throughout the room. This helps maintain stable imaging and significantly reduces unwanted reflections, supporting reliable monitoring at longer listening distances as well as in nearfield setups.

Deep and Powerful Low-Frequency Extension

The bass-reflex design provides substantial headroom and extended low-frequency response, reaching down to 30 Hz ±3 dB. This gives the KH 350 the full-range authority required for critical low-frequency decisions without immediately requiring a subwoofer.

High-Resolution Midrange Performance

The KH 350 combines Neumann’s proven midrange/tweeter platform with the MMD waveguide to provide controlled midrange directivity and precise vocal definition. Its three-way architecture provides dedicated drivers for the low, mid and high-frequency ranges, supporting detailed and confident monitoring decisions.

Advanced DSP & MA 1 Alignment

The integrated DSP engine provides sophisticated signal processing and supports Neumann’s MA 1 Automatic Monitor Alignment. MA 1 can optimise frequency and phase response to the acoustic characteristics of the room, helping achieve consistent monitoring accuracy in stereo, multichannel and immersive installations.

Exceptional Linearity & Consistency

Tight manufacturing tolerances provide highly consistent unit-to-unit matching and predictable performance across multi-monitor installations. The KH 350 achieves ±0.8 dB free-field frequency linearity deviation between 100 Hz and 10 kHz, supporting accurate translation across different playback systems.

Seamless Digital Studio Integration

The KH 350 provides balanced analogue XLR connectivity alongside AES3id digital input and output via 75 Ω BNC. This allows integration with digital studio systems, Neumann monitor control solutions and compatible KH subwoofers, providing a scalable path from stereo through to immersive monitoring systems.

Designed for Immersive Monitoring

The KH 350 is designed for stereo, multichannel and immersive monitoring environments, including Dolby Atmos® and other spatial-audio workflows. Its controlled directivity, precise imaging, vertical driver alignment and high output capability make it particularly well suited to professional immersive production.

FEATURES

• Three-way DSP-powered midfield monitor for professional nearfield and midfield monitoring
• Designed for medium-sized rooms and immersive production environments
• Deep, powerful low-frequency response with substantial headroom
• Bass-reflex acoustic design for extended low-frequency reproduction
• Neumann Mathematically Modelled Dispersion (MMD) waveguide for controlled directivity
• Stable imaging and reduced unwanted room reflections
• High-resolution midrange performance with precise vocal definition
• Proven Neumann midrange/tweeter platform
• Custom 8.25-inch woofer
• 3-inch midrange driver with magnetic shielding
• 1-inch tweeter with protective black metal grille
• Advanced integrated DSP engine
• 32-bit audio processing with 64-bit double-precision processing
• MA 1 Automatic Monitor Alignment support
• Linear-phase FIR correction
• Precise frequency and phase optimisation
• Flexible analogue and digital signal integration
• AES3id digital connectivity for integration with compatible Neumann systems
• Local and network-based monitor control
• Flexible stereo, multichannel and immersive system integration
• Suitable for music production, mixing, mastering, film scores, broadcast and post-production
• Compatible with Neumann KH subwoofers for extended low-frequency output, LFE reproduction and immersive systems
• Consistent tonal character for integration with other KH-Line monitors
• Tight manufacturing tolerances for consistent unit-to-unit matching
• Independent protection for woofer and tweeter
• Woofer excursion protection
• Thermal protection for electronics and amplifiers
• Soft clipping and peak limiting
• Automatic standby operation
• Universal mains power supply
• Two M8 mounting points on the side panels
• Compatible with a comprehensive range of Neumann mounting accessories
• Metallic anthracite front finish with black rear panel
• Designed for horizontal operation and professional studio installation

TECHNICAL SPECS

Product & External Specs

Product Type: Three-Way DSP-Powered Midfield Monitor
Acoustic Principle: Bass-Reflex
Recommended Listening Distance: 1.2–3.0 m (4–10 ft)
Feasible Listening Distance: 0.75–6.0 m (2.5–19 ft)
Acoustical Axis – Horizontal: 140 mm (middle)
Acoustical Axis – Vertical: 405 mm from bottom
Internal Net Volume: 35 litres
External Net Volume: 52 litres
Dimensions (H × W × D): 545 × 280 × 363 mm (21 1/2 × 11 × 14 1/4″)
Weight: 20.0 kg (44 lb 1 oz)
Mounting Points: 2 × M8 on side panels; thread depth from outside of cabinet 25 mm (1″)
Colour/Finish: Metallic anthracite, RAL 7021 front / black, RAL 9005 rear

Acoustic Specifications

Free-Field Frequency Response ±6 dB: 27 Hz–21 kHz
Free-Field Frequency Response ±3 dB: 30 Hz–21 kHz
Passband Free-Field Frequency Response: 32 Hz–20 kHz, ±1.25 dB
Free-Field Frequency Linearity Deviation: ±0.8 dB between 100 Hz and 10 kHz
Self-Generated Noise: <20 dB(A) SPL at 10 cm, with input gain set to 100 dB SPL for 0 dBu
Sine-Wave Output with THD <0.5%: 95 dB SPL at 1 m in half space, >58 Hz
Maximum SPL – Half Space: 122.6 dB SPL at 1 m, 3% THD, averaged between 100 Hz and 6 kHz
Maximum SPL – Full Space: 116.6 dB SPL at 1 m, 3% THD, averaged between 100 Hz and 6 kHz
Bass Capability: 109.7 dB SPL maximum at 1 m in half space, 3% THD, averaged between 50 Hz and 100 Hz
Dolby D.A.R.D.T. Maximum SPL – Full Range: 120 dB
Dolby D.A.R.D.T. Maximum SPL – Bass Managed: 124 dB

Drivers

Woofer: 210 mm (8 1/4″)
Midrange: 75 mm (3″) with magnetic shielding
Tweeter: 25 mm (1″) with protective black metal grille

Analogue Input & Output

Analogue Input: XLR, electronically balanced
Analogue Input Impedance: >12 kΩ
Maximum 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 @ 15 kHz
Volume Control: Via MA 1 software
Volume Control Range / Resolution: 0 to -∞ dB; 0.1 dB
Analogue Dynamic Range / THD+N: 118 dB(A); -90 dB

Digital Input & Output

Digital Input: BNC (75 Ω), AES3id
Digital Output: BNC (75 Ω), AES3id
Maximum Input Level: 1.2 V peak-to-peak
Digital Converter Resolution: 24-bit
Digital Converter Sampling Rate: 32–200 kHz
Digital Internal Sampling Rate: 48 kHz
Output Sample Rate: Identical to input sample rate
Latency – Analogue Input: 2.6 ms
Latency – AES3id Input: 4.7 ms
A-D-A Dynamic Range: 118 dB
Delay Resolution: 20.8 µs; 0.71 mm (0.28″)
Time-of-Flight Maximum Distance: 0–120 ms; 0–41.2 m (135 ft)
Input Gain Control / Sensitivity: 0 dB to -15 dB
Output Level Settings: 94; 100; 108; 114 dB SPL at 1 m based on 0 dBu input
Input Selector: Analogue; AES3id L; AES3id R; Mono
Ground Lift: Yes
Control: Local; Network
Mains Switch: Yes
Mains Voltage: Universal power supply, 100–240 V

Equalisation & DSP

Controller Design: Digital; active
DSP Resolution: 32-bit audio; 64-bit double precision processing
Crossover Frequencies: 700 Hz and 1700 Hz
Crossover Slope: 24 dB/octave
Automatic Room Calibration via MA 1: Yes
FIR Phase Correction: Linear phase, 60 Hz–18 kHz, ±45°
Bass EQ: 0; -1; -2; -4 dB
Low-Mid EQ: 0; -1; -2; -3 dB
Treble EQ: +1; 0; -1; -2 dB
Remote Control: Via Ethernet and MA 1

Protection & Monitoring

Protection Circuitry: Independent soft-clip, peak and thermal limiters for woofer and tweeter; woofer excursion limiter; thermal limiter for electronics and amplifiers
Remote Control: Via Ethernet and MA 1
Status Display – On / Normal Operation: Neumann logo, White
Status Display – Identification: Neumann logo, Rosé
Status Display – Limit / Clip / Errors / Protection / Boot Mute / Shutdown Mute: Neumann logo, Red
Logo Brightness: Via MA 1 software

Amplification & Power Supply

Woofer Amplifier Output – 10% THD+N, Limiter Deactivated: 300 W
Midrange Amplifier Output – 10% THD+N, Limiter Deactivated: 160 W
Tweeter Amplifier Output – 10% THD+N, Limiter Deactivated: 125 W
Woofer Amplifier Output – 0.1% THD+N, Limiter Deactivated: 185 W
Midrange Amplifier Output – 0.1% THD+N, Limiter Deactivated: 125 W
Tweeter Amplifier Output – 0.1% THD+N, Limiter Deactivated: 125 W
Mains Power Supply: SMPS, 100–240 V, 50/60 Hz
Power Consumption – Standby: <300 mW
Power Consumption – Idle: 26 W
Power Consumption – Full Output: 320 W
Automatic Standby: 20 minutes by default

Cabinet & Construction

Cabinet Material: Composite polycarbonate front, wooden sleeve, aluminium electronics panel
Cabinet Surface Finish: Painted
Front Colour: Metallic anthracite, RAL 7021
Rear Colour: Black, RAL 9005
Operating Temperature: +10°C to +40°C (+50°F to +104°F)
Operating Humidity: <75% RH, non-condensing
Transport / Storage Temperature: -25°C to +60°C (-13°F to +140°F)
Transport / Storage Humidity: <90% RH, non-condensing

Applications & System Integration

Monitoring Applications: Music production, mixing, mastering, film scores, broadcast, post-production, stereo, multichannel and immersive audio
Immersive Compatibility: Dolby Atmos® and other spatial-audio formats
MA 1 Compatibility: Yes
Subwoofer Compatibility: KH 750 DSP, KH 805 II, KH 810 II and KH 870 II
System Integration: Stereo, multichannel and immersive monitoring systems
KH-Line Integration: Can be combined with other KH-Line monitors in immersive setups

Included Accessories

• 4 × Black mains cables covering EU/KR, UK, US and CN standards
• 1 × Safety Guide
• 1 × “Getting Started Quickly” supplement