Neumann | Midfield Studio Monitor | KH 420
[Class A/B Amplifier]
KH 80 DSP | KH 120 A | KH 150 | KH 310A | KH 420 | KH 750 DSP | KH 810 | KH 870 | NDH 20 | NDH 30
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The gold standard in the midfield range
The KH 420 is designed for a working distance of 1.5 to 3 m (5’ to 9’). It handles this space effortlessly thanks to great power reserves and precisely concentrated dispersion. Even in diverse acoustical environments the KH 420 remains neutral and clear in every detail down to the subtlest nuances. No subtlety is lost; every sound element can be localized.
Neumann | KH 420
From HK$37,900.00Sale Price
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Acoustics Free field frequency response ±6 dB 25 Hz … 22 kHz Free field frequency response ±3 dB 26 Hz … 22 kHz Pass band free field frequency response 28 Hz … 20 kHz, ±2 dB 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 ±0.78; ±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) 122.4 dB SPL Max. SPL in full space at 3% THD at 1m (averaged between 100 Hz and 6 kHz) 116.4 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 Bass capability: Max. SPL in half space at 3% THD at 1m/pair (averaged between 50 Hz and 100 Hz) 114,9 dB SPL Max system level in half space at 1 m/pair incl 1 x subwoofer (KH 750, KH810, KH870) 105,0; 110,7; 116,7 Max system level in half space at 1 m/pair incl 2 x subwoofer (KH 750, KH810, KH870) 111,0; 116,7; 122,7 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 Dolby DARDT. Max SPL fullrange 117 dB Dolby DARDT. Max SPL bass managed 122 dB Recommended Listening Distance 1.5 … 3.0 m (5'… 9') Feasible Listening Distance 1.25 … 11.0 m (4'… 33') Acoustical Principle Bassreflex, Ports at the front Analog Inputs and Outputs Analog input(s) XLR: analog electronically balanced Analog input impedance >14k Ohms Max. input level +24 dBu (DIM 1: 18 dBu for analog delayed) Digital Inputs and Outputs (Only if DIM is fitted) Digital input(s) BNC (75 Ω): AES3; S/P-DIF Digital output(s) BNC (75 Ω): AES3 Digital converter: resolution; design 16 … 24-bit DAC; Δ∑ 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 (Converter) >116 dB(A) Dynamic range D-A >123 dB(A) Digital sensitivity -18 dBFS = 100 dB SPL at 1 m Latency ADA / DA 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") 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 Equalization: Bass 0; -2.5; -5; -7.5 dB Equalization: Treble +1; 0; -1; -2 dB Electronics - Controller Crossover frequency 570 Hz and 2.0 kHz Protection circuitry Independent thermo limiters for woofer, midrange dome and tweeter. Woofer soft clip and excursion limiters. Amplifier overheat. Electronics - Amplifiers and Power Supply Output power woofer amplifier (THD+N with limiter deactivated: 10%) 330 W "Output power tweeter amplifier (THD+N with limiter deactivated: 10%)" 140 W Mechanics Woofer 265 mm (10") with magnetic shielding Tweeter 25 mm (1") with protecting black metal grille Product dimensions (height x width x depth) 645 x 330 x 444 mm (25 3/8" x 13" x 17 1/2") Product weight 35.0 kg (77 lbs 3 oz) (+ 100 g (3 oz) with DIM 1 fitted)
