KH 310 II
Studio Monitor
From Neumann:
The KH 310 II sets a new benchmark for three-way reference monitors, delivering exceptional midrange clarity, ultra-low distortion and increased SPL. Its DSP-controlled architecture offers superior accuracy and predictable translation for demanding nearfield environments as well as optional room correction via MA 1 Automatic Monitor Alignment.
The KH 310 II introduces the next era of precision to Neumann’s iconic three‑way monitor line. While maintaining the sonic character that made the original KH 310 a reference in countless studios, nearly every internal component has been redesigned to further improve real‑world performance. A new amplifier platform increases total power to 525 W. This enables cleaner output with even lower THD and 5 dB higher max SPL. Tighter component integration and production tolerances achieve ±0.6 dB linearity from 100 Hz to 10 kHz for razor sharp imaging.
At the heart of the KH 310 II is an DSP architecture that supports MA 1 Automatic Monitor Alignment, ensuring precise frequency and phase correction for consistent translation in any room. Analog and digital AES3id inputs (BNC) enable seamless integration with modern workflows, including Neumann’s new generation of KH subwoofers and monitor control solutions.
Specs
- Free field frequency response ±6 dB
- 29 Hz … 21 kHz
- Free field frequency response ±3 dB
- 33 Hz … 21 kHz
- Pass band free field frequency response
- 36 Hz … 20 kHz, ±1.25 dB
- Free field frequency linearity deviation between 100 Hz and 10 kHz
- ±0.6 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 (>82 Hz)
- Max. SPL calc. in half space at 3% THD at 1m (averaged between 100 Hz and 6 kHz)
- 121.4 dB SPL
- Max. SPL in full space at 3% THD at 1m (averaged between 100 Hz and 6 kHz)
- 115.4 dB SPL
- Bass capability, Max. SPL in half space at 3% THD at 1m (averaged between 50 Hz and 100 Hz)
- 107.8 dB SPL
- Dolby D.A.R.D.T. max SPL fullrange
- 118 dB
- Dolby D.A.R.D.T. max SPL bass managed
- 123 dB
- Recommended listening distance
- 1.0 … 2.5 m (3'… 8')
- Feasible listening distance
- 0.75 … 6.0 m (2'6"… 19')
- Acoustic principle
- Sealed
- Acoustical axis horizontal
- 78 mm (from tweeter side)
- Acoustical axis vertical (from bottom)
- 132 mm
- 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 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; -1.5; -3; -4.5 dB
- Equalization, Low-Mid
- 0; -1.5; -3; -4.5 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~
- 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
- 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)
- 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)
- 253 x 383 x 292 mm (10" x 15 1/8" x 11 1/2")
- Internal net volume
- 16.2 liters
- External net volume
- 24 liters
- Product weight
- 13.0 kg; (28 lbs 11 oz)
- Packed dimensions (height x width x depth), mm (inches)
- 418 x 481 x 409 mm; (16.5" x 18.9" x 16.1")
- Packed weight
- 18.0 kg; (39 lbs 11 oz)
- Packed cube
- 0.082 m³; (2.90 ft³)
- Included
- 1 x KH 310 II Left Monitor, anthracite, 4 x Mains Cables, black (EU/KR, UK, US and CN), 4 x Self-adhesive feet, 1 x Safety Guide, 1 x Supplement “Getting Started Quickly”, 1 x Operating Manual
Source: Neumann KH 310 II product page