KH 420 G

3Way Active Studio Monitor

Overview

The KH 420 from Neumann is a three-way active monitor designed for use as a mid-field or main monitor, and can be used free-standing or flush mounted into a wall. It is particularly well-suited for use in music, broadcast, and post production studios for tracking, mixing and mastering, and in multi-channel systems can be mixed freely with other loudspeakers in the range.

Features 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.

• 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

• Fully documented extensive mounting hardware options (hardware sold separately)

Specifications

Studio Monitor

Monitor Type Active 3-Way

Enclosure Bass-Reflex, Shielded

Drivers HF Driver: 1 x 1" / 25 mm Tweeter

MF Driver: 1 x 3" / 76 mm Cone

LF Driver: 1 x 10" / 265 mm Woofer

AmplificationHF Amplifier: Class-AB Rated at 130 W / 140 W Peak

MF Amplifier: Class-AB Rated at 130 W / 140 W Peak

LF Amplifier: Class-AB Rated at 295 W / 330 W Peak

Performance

Frequency Range26 Hz to 22 kHz  ± 3 dB

Frequency Response28 Hz to 20 kHz ± 2 dB

Maximum Sound Pressure Level (SPL)122.4 dB

Total Harmonic Distortion (THD)0.5%

Analog Input Sensitivity/Gain+4  to -12 dB (Continuously Variable)

Self-Generated NoiseLess Than 20 dBA (at 3.93" / 10 cm)

Protections and LimitingExcursion Limiter, Peak Limiter, and Thermal Limiting

Signal Processing

EQ1 x LF Shelf: -7.5 to 0 dB (2.5 dB Increments)

1 x Mid Notch/Peak: -4.5 to 0 dB (1.5 dB Increments)

1 x HF Shelf: -2 to +1 dB (1 dB Increments)

Parametric EQ-12 to +4 dB Between 25Hz and 80Hz, Q: 1 to 8

-12 to +4 dB Between 50Hz and 160Hz, Q: 1 to 8

-12 to +4 dB Between 100Hz and 320Hz, Q: 1 to 8

Crossover

Crossover Frequency Low-Pass Frequency: 570 Hz, 24 dB/Octave Slope

High-Pass Frequency: 2 kHz, 24 dB/Octave Slope

Connectivity

I/O 1 x 3-Pin XLR Balanced Analog Input

Power

AC Input Power 100 to 240 VAC at 50/60 Hz

Power Consumption 60 W (Standby)

800 W (Maximum)

Environmental

Operating Temperature 50 to 104°F / 10 to 40°C

Operating Humidity 90%

Storage Temperature -13 to 158°F / -25 to 70°C

General

Enclosure Material Aluminum, Metal Grille, Wood

Mounting Points 8 x M5 (Rear Panel)

Dimensions (W x H x D) 13.0 x 25.4 x 17.5" / 330.0 x 645.0 x 444.0 mm

Weight 77.2 lb / 35.0 kg

Packaging Info

Package Weight92.4 lb

Box Dimensions (LxWxH)30.2 x 24.25 x 23.4"

What’s In The Box

- Neumann KH 420 - 3-Way Active Studio Monitor

- 3 x AC Power Cables