- Details
- Features
- Tech Specs
- Reviews
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.
| Product Name | Neumann KH 420 3-Way Active Studio Monitor |
|---|---|
| Brand | Neumann |
| Condition | New |
| MPN | 505988 |
| UPC | 615104252103 |
| Shipping Option | Free Shipping to the Continental U.S. |
- Computer mechanically modeled three-way cabinet design using Low Resonance Integral Molding (LRIM) materials
- In-house simulated magnetically shielded drivers
- Alloy fabric dome tweeter with built-in grille
- Fabric dome, neodymium magnet, midrange driver
- Long throw bass driver with Extremely Linear Force Factor (ELFF) and flow optimized die cast basket
- High-capacity flow-optimized bass reflex ports with pipe damped
- Elliptical Mathematically Modeled Dispersion (MMD) waveguide, with wide horizontal and narrow vertical dispersion
- Electronics panel with dimensioned integrated Accelerated Heat Tunneling (AHT) heat sink
- Analog class AB amplifiers with large headroom and overheat limiting
- Fast-acting independent thermo limiters for woofer, midrange dome and tweeter to protect the voice coils
- Woofer soft clip and excursion limiters
- Four-position bass, low-mid and treble acoustical controls and easy to use parametric equalizer
- Wide range input gain and output level controls
- Ground lift
- Individual hand-alignment in final test
| 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") |
Neumann KH 420 3-Way Active Studio Monitor
Details
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.
| Product Name | Neumann KH 420 3-Way Active Studio Monitor |
|---|---|
| Brand | Neumann |
| Condition | New |
| MPN | 505988 |
| UPC | 615104252103 |
| Shipping Option | Free Shipping to the Continental U.S. |
Features
- Computer mechanically modeled three-way cabinet design using Low Resonance Integral Molding (LRIM) materials
- In-house simulated magnetically shielded drivers
- Alloy fabric dome tweeter with built-in grille
- Fabric dome, neodymium magnet, midrange driver
- Long throw bass driver with Extremely Linear Force Factor (ELFF) and flow optimized die cast basket
- High-capacity flow-optimized bass reflex ports with pipe damped
- Elliptical Mathematically Modeled Dispersion (MMD) waveguide, with wide horizontal and narrow vertical dispersion
- Electronics panel with dimensioned integrated Accelerated Heat Tunneling (AHT) heat sink
- Analog class AB amplifiers with large headroom and overheat limiting
- Fast-acting independent thermo limiters for woofer, midrange dome and tweeter to protect the voice coils
- Woofer soft clip and excursion limiters
- Four-position bass, low-mid and treble acoustical controls and easy to use parametric equalizer
- Wide range input gain and output level controls
- Ground lift
- Individual hand-alignment in final test
Tech Specs
| 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") |
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