Neumann KH 120 D G 5.25-Inch Active Near-Field Monitor with Digital Input and Delay, Single Unit

The KH 120 is Neumann's trailblazer model and development yardstick for compact studio monitors. It has been a reference class for close-range monitoring since 2011. Enormous power reserves meet high-precision sound conduction. The result: Maximum signal fidelity and distinctly contoured transients across the entire, neutrally designed frequency response. This enables you to precisely control tonal depth, spatial image and even the smallest details in the mix.

The KH 120 is a two-way bi-amplified monitor with thermally protected class-AB amplifiers (80 W each). Just like the drivers, its Mathematically Modeled Dispersion (MMD) waveguide is calculated with an optimal level of precision. Sound distributed in a horizontally precise manner ensures flexibility in the listening position; the narrower vertical dispersion reduces the negative effects of nearby reflections for example from a desk or mixing console. The finely controlled dispersion characteristics optimize reproduction in even the most varied of room configurations.

BEST WORKING ENVIRONMENT: CLOSE TO PROFESSIONAL EARS
The KH 120 is typically used in near-field applications such as project, music, broadcast and post-production studios for recording, mixing and mastering. It it also available as a digital input “D” version.

PORTS AND HIGH DYNAMICS: NO LONGER A CONTRADICTION
With its digital switched-mode power supply and bi-amplification, the KH 120 realizes sound pressure of up to 111.1 dB and in doing so, retains a high-resolution and neutral representation across the entire frequency response. This provides sufficient energy for maximum dynamics without distortion and losses. As a result, the bass goes down to impressive 52 Hz. Despite using ports, there is no “overhang” in the bass response. The transient response remains well in control. The optimized design of the drivers delivers clean sound right down to the lowest parts of the 50 Hz region. This rich foundation offers enough room to work cleanly on the mix without the necessity for a supplementary subwoofer. In the demanding treble range, the specially developed, powerful alloy fabric dome ensures distortion-free reproduction.

DIGITAL INPUT AND DELAY
The KH 120 D enables flexible digital signal connectivity (24 bit, 192 kHz, AES3 and S/P-DIF) via a digital BNC input and buffered BNC output. Audio-visual synchronization ensures a lip sync delay of 0 to 10/12 frames. The loudspeaker can be delayed up to 400 ms, in order to compensate for varying listening distances.

Key Features

• Compact bi-amplified studio monitor with a high efficiency
• Exceptional bass depth and transient response from 52 to 21k Hz
• Precise dispersion, optimized for near-field applications
• Digital Input and delay (max. 400 ms)
• As a stereo system with KH 750 DSP and iPad app, controllable and alignable to the room*

Technical Specifications

Free field frequency response +/-6 dB
46 Hz - 24 kHz
Free field frequency response +/-3 dB
52 Hz - 21 kHz
Free field frequency linearity deviation between 100 Hz and 10 kHz
+/- 1.0 dB
Reproduction accuracy between 100 Hz and 10 kHz: 100%, 80%, 50% of loudspeakers produced
+/-0.97; +/-0.40; +/-0.23 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 (>120 Hz)
Max. SPL calc. in half space at 3% THD at 1m (averaged between 100 Hz and 6 kHz)
111.1 dB SPL
Max. SPL in full space at 3% THD at 1m (averaged between 100 Hz and 6 kHz)
105.1 dB SPL
Bass capability: Max. SPL in half space at 3% THD at 1m (averaged between 50 Hz and 100 Hz)
104.8 dB SPL
Max. short term SPL with IEC-weighted noise (IEC 60268-5) at 1 m, in typical listening conditions
107 dB(C) SPL
Max. short term SPL with music material at 2.3 m in typical listening conditions (pair / full range)
97 dB(C) SPL
Max. short term SPL with music material at 2.3 m, in typical listening conditions (pair with subwoofer)
104 dB(C) SPL
Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair full range)
88 / 93 dB(C) SPL
Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair with subwoofer)
89 / 94 dB(C) SPL
Analog input(s)
XLR
Analog input impedance
10k Ohms in position 94/108 dB SPL at 1 m; 20k Ohms in position 100/114 dB SPL at 1 m
Max. input level
+24 dBu (18 dBu for analog delayed)
Common mode rejection ratio (CMRR)
>56 dB @ 15kHz
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
Digital input(s)
BNC (75 OHM): AES3; S/P-DIF
Digital output(s)
BNC (75 OHM): AES3
Digital converter: sampling rate
22.05; 24; 32; 44.1; 48; 64; 88.2; 96; 176.4; 192 kHz
Digital internal sampling rate
96 kHz
Dynamic range A-D-A
>116 dB(A)
Dynamic range D-A
>123 dB(A)
THD+N: analog delayed, digital
< -104 dB; < -106 dB
Digital sensitivity
-18 dBFS = 100 dB SPL at 1 m
Latency
0.22 - 1.85 ms (digital A, B or A+B); 0.54 ms (analog delayed)
Delay: User adjustable delay range
0 - 409.5 ms
Delay: Resolution: time; distance
0.1 ms; 3.44 cm (1 3/8”)
Delay: Max. frames Audio-video synchronisation (lip sync)
10.2 (40 ms) frames; 12.3 (33 ms) frames
Delay: Time-of-flight maximum distance
140.1 m (462' 2")
Controller design
Analog; active
Crossover frequency
2.0 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, tweeter. Woofer soft clip and excursion limiters. Amplifier overheat.
Infrasonic filter: frequency; slope
30 Hz; 6 dB/oct.
Display: On; Normal Operation
Neumann logo “White”
Display: Limit / Clip / Errors / Protection /Boot Mute / Shut Down Mute
Neumann logo “Red”
Display Brightness
White:on/dimmed/off: Red:on/dimmed
Output power woofer amplifier (THD+N with limiter deactivated: 10%)
80 W
Output power tweeter amplifier (THD+N with limiter deactivated: 10%)
80 W
Output power woofer amplifier (THD+N with limiter deactivated: 0.1%)
50 W
Output power tweeter amplifier (THD+N with limiter deactivated: 0.1%)
50 W
Mains Power Supply: input voltage; frequency
100-240V; 50/60 Hz
Power consumption (230 V / 100 V): Idle
40 W
Power consumption (230 V / 100 V): Full output
200 W
In-rush current (Peak)
20 A
Cabinet material
Aluminium
Cabinet surface finish; color (front / back)
Painted; metallic anthracite (RAL 7021)
Operating conditions
+10° C to +40° C (+50° F to +104° F); <75% RH; non-condensing
Transport/storage conditions
-25° C to +70° C (-13° F to 158° F); <90% RH, non-condensing
Woofer
130 mm (5.25") magnetically shielded with protecting black metal grille
Tweeter
25 mm (1") with protecting black metal grille
Mounting points
2 x M8 threaded inserts with 70 mm spacing on back panel; thread depth 15 mm (5/8”)
Product dimensions (height x width x depth)
277 x 182 x 220 mm (10 7/8” x 7 1/8” x 8 5/8”)
External net volume
9.7 liters
Product weight
6.5 kg (14 lbs 5 oz)
Packed dimensions (height x width x depth), mm (inches)
415 x 365 x 280 mm (16 3/8” x 14 3/8” x 11”)
Packed weight
8.5 kg (18 lbs 8 oz)
Packed cube
0.042 m3