Neumann KH 310A

Active Studio Monitor

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Neumann KH 310A Active Studio Monitor

Neumann KH 310A
Product Code: KH310A

The KH 310 three-way active tri-amplified monitor features a Mathematically Modeled Dispersionï¿½ Waveguide (MMDï¿½), flexible acoustical controls, various input options and an extensive range of mounting hardware. This allows the loudspeaker to be used in diverse acoustical conditions, with any source equipment and in a wide variety of physical locations. The KH 310 represents the latest in acoustic and electronic simulation and measurement technologies to ensure the most accurate sound reproduction possible.

The KH 310 is designed for use as a near-field monitor, as a front loudspeaker in mid-sized multi-channel systems, or as a rear loudspeaker in a larger multi-channel system. It can be used in project, music, broadcast centers, OB vans, and post production studios for tracking, mixing, and mastering.

Features	Benefits
Powerful alloy fabric dome	Low-distortion high-frequency reproduction
Elliptical Mathematically Modeled Dispersion™ (MMD™) waveguide, with wide horizontal and narrow vertical dispersion	Smoother off-axis response, More forgiving of diverse acoustical environments Freedom of movement across the mixing console Reduces reflections off the mixing console
New in-house simulated drivers	Latest modeling techniques used to minimize non-linear (intermodulation) distortion
Fabric dome, neodymium magnet, midrange driver	Dedicated driver reproduces important midrange frequencies, which is especially important for speech and vocals Light weight dome has better transient response and less breakup modes than cone designs High power magnet reduces harmonic and intermodulation distortion
Long throw composite sandwich cone bass driver with Extremely Linear Force Factor™ (ELFF™) and ribbed surround	Damping of break-up modes and low distortion at high sound levels Linear pistonic motor gives a very low harmonic distortion even at high excursions Reduced radial break-up modes on the ribbed surround
Two-color + dimmable Neumann logo	Displays operation status and activation of the extensive protection system Dimmable for low lighting level conditions or behind the screen applications
Compact sealed three-way cabinet design (magnetically shielded)	No standing wave resonances Fastest bass transient response Reduced intermodulation distortion in midrange
One-piece front panel with no discontinuities	Reduced diffraction and smoother frequency response
Powerful analog class AB amplifiers with large headroom	Improved transient response
Independent thermo limiters for woofer, midrange dome and tweeter to protect the voice coils. Woofer soft clip and excursion limiters	Fast acting, high reliability and allows extraction of the maximum performance from the system
Production consistency due to individual hand-alignment in final test	Any KH 310 is “pair-matched” to any other KH 310
4-position bass, low-mid and treble acoustical controls	More control in diverse acoustical environments
Wide range input gain and output level controls	Easier interfacing with signal sources
Ground lift	Reduced noise in electrically noisy environments and over-comes ground loops
Universal switched-mode power supply (100 … 240 V)	One version works in any country and robust to poor quality mains supply
Extensive mounting hardware options	More flexibility in mounting cabinets in more diverse locations and backwards compatibility with previous models
Optional robust metal grille	Can be used, if required, to protect the drivers
Optional transportation accessories	Stylish soft carry bag with space for cables Robust wooden flight case

Acoustics
Free field frequency response	34 Hz - 21 kHz, ï¿½ 3 dB
Pass band free field frequency response	36 Hz - 20 kHz, ï¿½ 2 dB
Self-generated noise (with input gain set to 100 dB for 0 dBu)	< 20 dB(A) at 10 cm
Total harmonic distortion < 0.5 % at 95 dB SPLat 1 m	> 85 Hz
Max. SPL in full space / calc. in half space at 3% THD at 1m	110.3 / 116.3 dB SPL (averaged between 100 Hz and 6 kHz)
Bass capability: Max. SPL in half space at 3% THD at 1m	104.5 dB SPL (averaged between 50 Hz and 100 Hz)
Max. short term SPL with IEC-weighted noise (IEC 60268-5) at 1 m, in typical listening conditions	113 dB(C) SPL
Max. short term SPL with music material at 2.3 m, in typical listening conditions (pair)	100 dB(C) SPL (full range) 107 dB(C) SPL (with subwoofer)
Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single/pair)	93 / 99 dB(C) SPL (full range) 94 / 100 dB(C) SPL (with subwoofer)
Electronics
Bass / Midrange / Treble Class AB amplifiers, cont. (peak) output power*	150 W (210 W) / 70 W (90 W) / 70 W (90 W)
Controller design	Analog, active
Crossover frequencies	650 Hz / 2 kHz
Crossover slope	24 dB/oct, 4th order
Equalization - Bass	0, −2.5, −5, −7.5 dB
Equalization - Low Mid	0, −1.5, −3, −4.5 dB
Equalization - Treble	+1, 0, −1, −2 dB
Protection circuitry	Independent thermo limiters for woofer, midrange dome and tweeter. Woofer soft clip and excursion limiters
Infrasonic filter - frequency; slope	15 Hz; 6 dB/oct
Input	XLR, analog electronically balanced
Impedance, electrically balanced	> 13k Ohms
Input gain control (sensitivity)	0 dB to −15 dB
Output level control	94, 100, 108, 114 dB SPL
CMRR	> 56 dB @ 100 - 15 kHz
Max. analog input level	+24 dBu (+18 dBu for analog delayed)
Displays and indicators - power on	Neumann logo ï¿½Whiteï¿½
Displays and indicators - limit / clip	Neumann logo ï¿½Redï¿½
Mains Power Supply, voltage; frequency	100-240 V~; 50/60 Hz
Power consumption - idle	30 W
Power consumption - full output	300 W
Digital Input/Output
Format BNC	AES3, S/P-DIF
Impedance BNC, unbalanced	75 Ω (input/output)
Format XLR	AES3
Impedance XLR, balanced	110 Ω (input)
Input switching	Analog, Digital A, Digital B, Digital A+B (all available with and without delay)
Digital converter: resolution, design	16 ... 24-bit DAC, Δ∑
Digital converter: sampling rate	32 ... 192 kHz
Digital sensitivity	-18 dBFS
D-A dynamic range	120 dB
Audio-Video/lip sync and Time-of-Flight delay range	0 ... 409.5 ms
Audio-Video/lip sync max. frames	0 ... 10.2 (40 ms) frames, 0 ... 12.3 (33 ms) frames
Resolution: time/distance	0.1 ms / 3.4 cm ( 1 3/8")
Latency D-A (A-D-A)	0.22 - 1.85 ms (0.54 ms)
Mechanics
Cabinet surface finish, colour	Painted wood and polyurethane, Anthracite (RAL 7021). Aluminum electronics panel, Black.
Baffle cover	Optional removable metal grille
Operating conditions	+10ï¿½ C to +40ï¿½ C (+50ï¿½ F to +104ï¿½ F), <90% RH, non-condensing
Transport/storage condition	−25ï¿½ C to +70ï¿½ C (−13ï¿½ F to 158ï¿½ F), <90% RH, non-condensing
Drivers	Magnetically shielded
Woofer	210 mm (8 1/4")
Midrange	75 mm (3")
Tweeter	25 mm (1")
Cabinet design	Sealed
Mounting points	2 x M8 on side panels, depth from outside of cabinet 25 mm (1ï¿½). Rear panel screws for attaching LH 41 base plate. Rear panel bracket.
Product dimensions (height x width x depth), mm (inches)	253 x 383 x 292 mm (10" x 15 1/8" x 11 1/2")
Net volume, internal / external	16.2 liters / 28.3 liters
Product weight	13.1 kg (28 lbs 14 oz)
Packed dimensions (height x width x depth), mm (inches)	590 x 380 x 360 mm (23 1/4" x 15" x 14 1/8")
Packed weight and cube	16.9 kg (37 lbs 4 oz), 0.081 mï¿½
Delivery includes	1x KH 310 D 3x Cables (European, UK and US) 4x Self-adhesive feet 1x Operating manual 1x Supplement "Getting Started Quickly"

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