Acoustics

Free field frequency response

34 Hz - 21 kHz, ± 3 dB

Pass band free field frequency response

36 Hz - 20 kHz, ± 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 SPL at 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. input level

+24 dBu

Displays and indicators - power on

Neumann logo “White”

Displays and indicators - limit / clip

Neumann logo “Red”

Mains Power Supply, voltage; frequency

100-240 V~; 50/60 Hz

Power consumption - idle

24 W

Power consumption - full output

300 W

Mechanics

Cabinet surface finish, colour

Painted wood and polyurethane, metallic anthracite (RAL 7021). Aluminum electronics panel, Black.

Operating conditions

+10° C to +40° C (+50° F to +104° F), <90% RH, non-condensing

Transport/storage condition

−25° C to +70° C (−13° F to 158° F), <90% RH, non-condensing

Drivers

Magnetically shielded

Woofer

210 mm (8 1/4")

Midrange

75 mm (3")

Tweeter

25 mm (1")

Mounting points

2 x M8 on side panels, depth from outside of cabinet 25 mm (1”).

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")

Product weight

13.0 kg (28 lbs 11 oz)

Included

1x KH 310 A  

3x Main cables (European, UK and US version)

4x Self-adhesive feet  

1x Operating manual  

1x Supplement "Getting Started Quickly"