NEUMANN KH 420 G
The KH 420 represents the result of using the latest techniques in acoustical, electronic and mechanical design to bring a new benchmark in audio reproduction quality. In-house computer optimized drivers, a waveguide featuring mathematically modeled dispersion (MMD), flexible acoustical controls, various input options and an extensive mounting hardware range allow the KH 420 to be used in diverse acoustical conditions, with any source equipment, and in a wide variety of physical locations.
The KH 420 has been designed for use as a mid-field or main monitor. It is particularly well-suited for use in music, broadcast, and post production studios for tracking, mixing, and mastering. The KH 420 can be used free-standing or flush mounted into a wall and in multichannel systems, can be mixed freely with other loudspeakers in the range.
The Optional Digital Input Module DIM 1 expands the loudspeaker electronics by a digital XLR input, a digital BNC input and a digital BNC output (192 kHz/24 Bit) for flexible digital signal links. With the delay function (adjustment range 0 - 400 ms) of the DIM 1, the audio signal can be delayed to ensure audio-visual synchronization (lip sync). In addition, the high resolution of the delays (0.1 ms) allows equalization of the propagation delays. The delay can be added to both inputs (digital and analog). The KH 420 can be retrofitted with a DIM 1.
FEATURES:
- computer-modeled cabinet design using low resonance integral molding materials
- extraordinary bass depth (26 Hz) with high sound pressure (122.4 dB)
- precise dispersion in the midrange and high frequencies
- two-color + dimmable Neumann logo
- elliptical mathematically modeled dispersion waveguide for tweeter and midrange drivers
- powerful alloy fabric dome
- midrange driver
- long throw bass driver and flow optimized die cast basket
- vented cabinet (magnetically) shielded) with field rotatable waveguide
- smooth front panel with no discontinuities
- production consistency
- 4-position bass, mid and treble acoustical controls
- parametric EQ
- wide range input gain and output level controls
- display dimmer
- XLR analog input with ground lift
- universal dual switchedmode power supply (100 up to 240 V)
- mounting hardware options
- accelerated Heat Tunneling heat sink
- robust and reliable electronic design
Optional DIM 1 Digital Input Module:
- lipsync delay (0 up to 10/12 frames)
- time-of-flight delay (0 up to 400 ms)
- signal select
- digital XLR and BNC inputs and buffered BNC output / 24 bit, 192 kHz, AES3 and S/P-DIF
PERFORMANCE:
- free field frequency response +/6 dB: 25 Hz up to 22 kHz
- free field frequency response +/3 dB: 26 Hz up to 22 kHz
- free field frequency linearity deviation between 100 Hz and 10 kHz: +/1.2 dB
- reproduction accuracy between 100 Hz and 10 kHz: 100%, 80%, 50% of loudspeakers produced: +/0.78m, +/0.36, +/0.22 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 (>100 Hz)
- max. SPL calc. in half space at 3% THD at 1m (averaged between 100 Hz and 6 kHz): 116.4 dB SPL
- max. SPL in full space at 3% THD at 1m (averaged between 100 Hz and 6 kHz): 122.4 dB SPL
- bass capability: max. SPL in half space at 3% THD at 1m (averaged between 50 Hz and 100 Hz): 109.9 dB SPL
- max. short term SPL with IEC-weighted noise (IEC 60268-5) at 1 m, in typical listening conditions: 109 dB(C) SPL
- max. short term SPL with music material at 2.3 m in typical listening conditions (pair / full range): 103 dB(C) SPL
- max. short term SPL with music material at 2.3 m, in typical listening conditions (pair with subwoofer): 109 dB(C) SPL
- max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair full range): 90 / 96 dB(C) SPL
- max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair with subwoofer): 90 / 96 dB(C) SPL
- analog input(s): XLR, analog electronically balanced
- analog input impedance: >14k Ohms
- max. input level: +24 dBu (DIM 1: 18 dBu for analog delayed)
- common mode rejection ratio (CMRR): >56 dB @ 15kHz
- input gain control (sensitivity): 0 dB up to -15 dB
- output level control (output level in 1 m based on 0 dBu input level): 94, 100, 108, 114 dB SPL
- controller design: analog, active
CROSSOVER:
- crossover frequency: 570 Hz and 2.0 kHz
- crossover slope: 24 dB/oct, 4th order
POWER:
- output power woofer amplifier (THD+N with limiter deactivated: 10%): 330 W
- output power midrange amplifier (THD+N with limiter deactivated: 10%): 140 W
- output power tweeter amplifier (THD+N with limiter deactivated: 10%): 140 W
- output power woofer amplifier (THD+N with limiter deactivated: 0.1%): 295 W
- output power midrange amplifier (THD+N with limiter deactivated: 0.1%): 130 W
- output power tweeter amplifier (THD+N with limiter deactivated: 0.1%): 130 W
- mains power supply: input voltage, frequency: 100-240V, 50/60 Hz
- power consumption (230 V / 100 V), idle: 60 W (+5W when DIM 1 fitted)
- power consumption (230 V / 100 V), full output: 800 W
GENERAL:
- cabinet material: wood cabinet, polyurethane waveguide, aluminum electronics panel
- cabinet surface finish, color (front / back): painted, metallic anthracite (RAL 7021) / black (RAL 9005)
- operating conditions: +10° C to +40° C, <90% RH, non-condensing
- transport/storage conditions: -25° C to +70° C, <90% RH, non-condensing
- woofer: 265 mm with magnetic shielding
- midrange: 75 mm with magnetic shielding
- tweeter: 25 mm with protecting black metal grille
- mounting points: 8 x M5 on rear panel
- product dimensions (height x width x depth): 645 x 330 x 444 mm
- external net volume: 93 liters
- product weight: 35.0 kg
- cabinet weight when electronics remote located: 30.3 kg
PACKAGING:
- packed dimensions (height x width x depth), mm: 775 x 610 x 590 mm
- packed weight: 41.0 kg
| Brand | Neumann |
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