Neumann KH 420 Three-Way Active Midfield Studio Monitor

Neumann KH 420 Three-Way Midfield Active Studio Monitor

The Neumann KH 420 is a professional three-way midfield active studio monitor designed for critical listening, mixing, mastering, broadcast, post-production, and high-end project studio applications. Engineered as a reference monitoring solution, the KH 420 combines exceptional acoustic accuracy, powerful amplification, controlled dispersion, and advanced driver technology to deliver highly detailed and neutral sound reproduction even at extended listening distances.

Designed for midfield monitoring applications with recommended listening distances from approximately 1.5 to 3 metres, the Neumann KH 420 provides outstanding resolution, precise stereo imaging, and powerful low-frequency performance. Its advanced acoustic design allows engineers and producers to hear subtle details, accurate tonal balance, and precise spatial information required for professional audio decisions.

Three-Way Active Monitoring System for Professional Studios

The KH 420 features a three-way active design with dedicated drivers for low frequencies, midrange, and high frequencies. Each driver is powered by its own integrated Class AB amplifier, providing optimized power delivery and precise control across the entire frequency range.

• Three-way active midfield studio monitor.
• Dedicated woofer, midrange, and tweeter drivers.
• Bi- or tri-amplified operation with integrated electronics.
• Designed for professional mixing and mastering environments.
• Suitable for stereo and multi-channel monitoring systems.

Exceptional Accuracy with Mathematically Modeled Dispersion™ Waveguide

The Neumann KH 420 incorporates Neumann’s Mathematically Modeled Dispersion™ (MMD™) waveguide technology, engineered to provide precise horizontal dispersion and controlled vertical directivity. This advanced waveguide design creates a wider and more consistent listening area while reducing unwanted reflections from desks, consoles, and studio surfaces.

The controlled dispersion characteristics help maintain accurate monitoring performance across different listening positions, allowing engineers to make reliable mixing decisions in professional studio environments.

Powerful Low-Frequency Performance and Controlled Bass Response

The KH 420 delivers extended low-frequency reproduction down to 26 Hz, providing accurate bass monitoring without requiring an additional subwoofer for many full-range applications. Its front-firing bass reflex port design provides controlled airflow and precise transient response while minimizing unwanted resonance.

The large 265 mm (10-inch) woofer delivers powerful and controlled low-frequency output, allowing engineers to accurately evaluate bass instruments, kick drums, and low-end energy during production and mastering.

High-Resolution Midrange and Treble Reproduction

The KH 420 features a 75 mm (3-inch) midrange driver and a 25 mm (1-inch) alloy fabric dome tweeter designed for accurate reproduction of vocals, instruments, and high-frequency details. The advanced driver materials provide excellent transient response with low distortion, ensuring precise monitoring throughout the audible spectrum.

• Highly detailed midrange reproduction.
• Accurate vocal and instrument monitoring.
• Low distortion high-frequency performance.
• Fast transient response for critical listening.

Powerful Class AB Amplification

The KH 420 uses integrated thermally protected Class AB amplifiers designed specifically for each driver section. The system provides substantial power reserves while maintaining clean and accurate reproduction at high listening levels.

• 330 W woofer amplifier.
• 140 W midrange amplifier.
• 140 W tweeter amplifier.
• Independent thermal protection for each driver.
• Woofer soft clipping and excursion protection.

Advanced Acoustic Controls for Room Adaptation

The Neumann KH 420 includes adjustable acoustic controls that allow engineers to optimize monitor performance for different studio environments. These controls help compensate for placement conditions, room acoustics, and listening preferences.

• Adjustable bass response control.
• Treble response adjustment.
• Input sensitivity adjustment.
• Output level control.
• Flexible integration into professional monitoring systems.

Professional Applications

• Professional recording studios.
• Mixing and mastering studios.
• Broadcast production facilities.
• Post-production and film studios.
• Music production environments.
• High-end project studios.
• Multi-channel monitoring systems.
• Reference listening applications.

Precision Manufacturing and Pair Matching

Each KH 420 monitor undergoes individual final testing and alignment to ensure consistent production quality. This precision manufacturing process allows any KH 420 monitor to be matched with another KH 420 for accurate stereo and multi-channel monitoring setups.

Key Features

• Professional three-way midfield active studio monitor.
• Designed for mixing, mastering, broadcast, and post-production.
• Mathematically Modeled Dispersion™ (MMD™) waveguide.
• Exceptional stereo imaging and detail resolution.
• Extended bass response down to 26 Hz.
• 265 mm (10-inch) low-frequency driver.
• 75 mm (3-inch) midrange driver.
• 25 mm (1-inch) tweeter.
• Integrated Class AB tri-amplification.
• Maximum SPL up to 122.4 dB.
• Front bass reflex port design.
• Adjustable acoustic controls.
• Professional XLR balanced input.

Technical Specifications

Why Choose the Neumann KH 420?

The Neumann KH 420 is a reference-class midfield studio monitor created for professionals who require uncompromising accuracy, power, and reliability. With its three-way active design, advanced dispersion technology, extended bass response, powerful amplification, and precise acoustic tuning options, the KH 420 provides the detailed and neutral monitoring performance required for professional mixing, mastering, broadcast, and post-production environments.