Gear Hunter

Neumann - KH120 Active Reference Monitor

Description

The KH 120 is a studio monitor designed for use as a near-field loudspeaker or as a rear loudspeaker in larger multi-channel systems. The KH 120 A represents the latest in acoustic and electronic simulation and measurement technologies to ensure the most accurate sound reproduction possible. It has a Mathematically Modeled Dispersion waveguide (MMD), flexible acoustical controls, analog class-AB amplifiers, a large headroom analog input and an extensive mounting hardware range. All of this provides the user with the maximum versatility over a wide variety of acoustic conditions, source equipment, and physical locations.

The KH 120 is perfect for tracking, mixing and mastering in music, broadcast, project and post-production studios.

*Sold individually.

Neumann KH 120 A Studio Monitor Features

• Compact aluminum cabinet (magnetically shielded) - minimizes resonances, better heat dissipation, long life


• Non-parallel cabinet walls - Greatly attenuated internal standing waves


• One-piece front panel with no discontinuities - Reduced diffraction and smoother frequency response


• Powerful titanium fabric dome - Low-distortion high-frequency reproduction


• Elliptical Mathematically Modeled Dispersion (MMD) waveguide - More forgiving of diverse acoustical environments


• Wide horizontal dispersion - Freedom of movement across the mixing console


• Narrow vertical dispersion - Reduces reflections off the mixing console


• Two-colour + dimmable Neumann logo - Displays operation status and activation of the extensive protection system


• Robust metal grille - Protects against mechanical damage


• Long throw bass driver - Low distortion at high sound levels


• Large front panel ports - Reduced bass compression and easier to mount in tight spaces such as OB vans


• A subwoofer, such as the Neumann KH 180, with its 7.1 High Definition Bass Manager, can be added to deepen the low-frequency response to 18 HZ and increase the system's maximum output level


• 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


• New mounting hardware options - More flexibility in mounting cabinets in more diverse locations


• Separate woofer and tweeter electronic peak limiters and thermal-protection circuitry - High reliability


• Powerful analog amplifiers with large headroom - Improved transient response


• Production consistency - Any KH 120 is "pair-matched" to any other KH 120


• Universal switched-mode power supply (100...240 V) - One version works in any country and robust to poor quality mains supply


• Display dimmer - For low lighting level conditions or behind the screen applications


• Ground lift - Reduced noise in electrically noisy environments and over-comes ground loops

Neumann KH 120 A Studio Monitor Specifications

Acoustics
-3 dB free field frequency response: 52 Hz 21 kHz, 3 dB
Pass band free field frequency response: 54 Hz 20 kHz, 2 dB
Self-generated noise (with input gain set to 100 dB for 0 dBu): < 20 dB(A) at 10 cm
Sine wave output with a THD < 0.5% at 1m: 95 dB SPL (> 100 Hz)
Max. SPL In half space at 3% THD at 1m: 111.1 dB SPL (averaged between 100 Hz and 6 kHz)

Electronics
Woofer amplifier, cont.(peak) output power: 50 W (80 W)
Tweeter amplifier, cont.(peak) output power: 50 W (80 W)
Controller design: Analog, active
Crossover Frequency: 2.0 kHz
Crossover Slope (dB/oct.): 24, 4th order
Equalization - Bass: 0, -2.5, -5, -7.5 dB
Equalization - Mid: 0, -1.5, -3, -4.5 dB
Equalization - High: +1, 0, -1, -2 dB
Protection circuitry: Limiter: low, high
Infrasonic filter frequency; slope: 30 Hz; 6 dB/oct.

Analog Input
Impedance, electrically balanced: XLR, > 10 k
Input gain control (sensitivity): 0 dBu to -15 dBu
Output level control: 94, 100, 108, 114 dB SPL
CMRR: > 56 dB @ 15 kHz

Displays and Mains Power
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: 20 W
Power consumption Full output AC: 200 W

Mechanics
Cabinet surface finish, colour: custom: Painted aluminium, Anthracite (RAL 7021)
Operating conditions: +10 C to +40 C (+50 F to +104 F), < 90% RH, non-condensing
Transport/storage conditions: 25 C to +70 C (13 F to 158 F), < 90% RH, non-condensing
Drivers: Magnetically shielded
Woofer: 130 mm (5.25)
Tweeter: 25 mm (1)
Mounting points: 2 x M8 on rear panel
Height x width x depth, mm (inches): 277 x 182 x 220 mm (10-7/8" x 7-1/8" x 8-5/8")
Internal net volume / external volume: 6.5 liters / 9.7 liters
Weight: 6.2 kg (13.7 lbs)