Product | KH420 | Detail Data

Free field frequency response ±6 dB 25 Hz … 22 kHz
Free field frequency response ±3 dB 26 Hz … 22 kHz
Free field frequency linearity deviation between 100 Hz and 10 kHz ± 1.2 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
Max. short term SPL with IEC-weighted noise (IEC 60268-5) at 1 m, in typical listening conditions 109 dB(C) SPL
Reproduction accuracy between 100 Hz and 10 kHz: 100%, 80%, 50% of loudspeakers produced ±0.78; ±0.36; ±0.22 dB
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
Equalization: Mid 0; -1.5; -3; -4.5 dB
Equalization: Parametric EQ: Gain '+4 ... -12 dB
Equalization: Parametric EQ: Frequency Bypass, 25 ... 80 Hz; 50 ... 160 Hz; 100 ... 320 Hz
Equalization: Parametric EQ: Q 1 ... 8
Display Brightness White: 100%/60%/30%/off; Red: 100%/60%/30%
Output power midrange amplifier (THD+N with limiter deactivated: 10%) 140 W
Output power midrange amplifier (THD+N with limiter deactivated: 0.1%) 130 W
Midrange 75 mm (3") with magnetic shielding
Cabinet weight when electronics remote located 30.3 kg (66 lbs 13 oz) (+ 100 g (3 oz) with DIM 1 fitted)
Bass Extension (Hz, -6 dB) 25
Maximum output level (dB SPL) 116.4
Max. Listening Distance up to (m) 11
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 ... -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
Controller design Analog; active
Crossover frequency 570 Hz and 2.0 kHz
Crossover slope 24 dB/oct; 4th order
Protection circuitry Independent thermo limiters for woofer, midrange dome and tweeter. Woofer soft clip and excursion limiters. Amplifier overheat.
Infrasonic filter: frequency; slope 9 Hz; 18 dB/oct.
Display: On; Normal Operation Neumann logo “White”
Display: Limit / Clip / Errors / Protection /Boot Mute / Shut Down Mute Neumann logo “Red”
Output power woofer amplifier (THD+N with limiter deactivated: 10%) 330 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 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
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 (+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
Woofer 265 mm (10") with magnetic shielding
Tweeter 25 mm (1") 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 (25 3/8" x 13" x 17 1/2")
External net volume 93 liters
Packed dimensions (height x width x depth), mm (inches) 775 x 610 x 590 mm (30 1/2" x 15" x 14 1/8")

Diagrams

KH 420 - Parametric - EQ

KH 420 - Parametric - EQ

KH 420 - Group Delay

KH 420 - Group Delay

KH 420 - Cumulative Spectral Decay

KH 420 - Cumulative Spectral Decay

KH 420 - Vertical Directivity Plot (vertical cabinet orientation)

KH 420 - Vertical Directivity Plot (vertical cabinet orientation)

KH 420 - Horizontal Directivity Plot (vertical cabinet orientation)

KH 420 - Horizontal Directivity Plot (vertical cabinet orientation)

KH 420 - Harmonic Distortion at 100 dB SPL (Purple: THD, Red: 2nd harmonic, Green: 3rd harmonic)

KH 420 - Harmonic Distortion at 100 dB SPL (Purple: THD, Red: 2nd harmonic, Green: 3rd harmonic)

KH 420 - Bass, Mid and Treble Acoustical Controls

KH 420 - Bass, Mid and Treble Acoustical Controls

KH 420 - Maximum SPL at 1m (Green: 10% THD, Red: 3% THD, Blue: 1% THD)

KH 420 - Maximum SPL at 1m (Green: 10% THD, Red: 3% THD, Blue: 1% THD)

KH 420 - Free-Field Response

KH 420 - Free-Field Response

KH 420 - Horizontal Directivity Plot (horizontal cabinet orientation)

KH 420 - Horizontal Directivity Plot (horizontal cabinet orientation)

KH 420 - Harmonic Distortion at 90 dB SPL (Purple: THD, Red: 2nd harmonic, Green: 3rd harmonic)

KH 420 - Harmonic Distortion at 90 dB SPL (Purple: THD, Red: 2nd harmonic, Green: 3rd harmonic)

KH 420 - Harmonic Distortion at 95 dB SPL (Purple: THD, Red: 2nd harmonic, Green: 3rd harmonic)

KH 420 - Harmonic Distortion at 95 dB SPL (Purple: THD, Red: 2nd harmonic, Green: 3rd harmonic)

KH 420 - Vertical Directivity Plot (horizontal cabinet orientation)

KH 420 - Vertical Directivity Plot (horizontal cabinet orientation)