Neumann K&H O 410 Tri-Amped Active Studio Monitor

Engineering excellence applied to all aspects of the O 410 design brings a new benchmark in audio reproduction quality. A waveguide featuring Mathematically Modeled Dispersion (MMD), flexible acoustical controls, various input options, and an extensive mounting hardware range allow the O 410 to be used in diverse acoustical conditions, with any source equipment, and in a wide variety of physical locations.

The O 410 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 O 410 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.

Neumann K&H O 410 Features:

Mid Sized 3-way System:

• The most important part of the frequency spectrum is reproduced by a separate midrange driver
• Extremely low harmonic and intermodulation distortion results in clean sounding audio reproduction
• Exceptionally neutral sound stage from 30 Hz to 24 kHz (±3 dB)
• Ideal cabinet materials with excellent self-damping properties
• Structural resonances avoided using LRIM (Low Resonance Integral Molding)
• Vented enclosure extends bass response, even at very high output
• Modern-looking design with optional grille
• Extensive accessories allow for a multitude of installation possibilities
• Magnetically shielded for use next to CRT screens.

Mathematically Modeled Dispersion (MMD)

Three stage design process:

• Waveguide is mathematically modeled before physical prototypes are realized,
• Physical prototypes are measured under anechoic conditions to verify theoretical performance,
• Extensive listening tests correlate objective measurements and subjective perception
• Wide horizontal directivity gives increased freedom of movement along the mixing console
• Narrow vertical directivity reduces the effect of early reflections off the console surface
• MMD™ is easily rotated in the field when horizontal mounting the cabinet
• Perfect directivity pattern leads to a smooth power response.

Advanced Electronics

• Transformer balanced input stage (TIM 1) equipped with special distortion reduction crossover function
• Electronics can be remotely accessed when the cabinet is flush mounted (REK 1 and CP 2, CP 5, CP 10, CP 15, CP 20, CP 25, or CP 30)
• Integrated electronic limiter for each driver
• Hybrid class A-B amplifiers, employed for their best overall performance, are also protected
• Active three-way crossover with 24 dB/oct. slopes
• Display for power on and protect is integrated into the MMD, together with a logo
• Controls adapt the monitor’s response to compensate for the loudspeaker’s environment:
• Bass, mid and treble controls for specific and common acoustical issues,
• Parametric EQ for low-frequency corrections
• Accelerated Heat Tunneling (AHT) ensures effective amplifier cooling whether the cabinet is mounted vertically or horizontally.
• Electronics can be remotely accessed when the cabinet is flush mounted
• Electronics can be remotely powered on with two modes of operation (0 V and 12 V trigger)
• Attention to detail in design results in low self-generated noise.

Neumann K&H O 410 Specifications:

Electronics:

• Woofer amplifier, cont. output power (THD 340 W
• Woofer amplifier, peak output power: 400 W
• Midrange amplifier, cont. output power (THD 160 W
• Midrange amplifier, peak output power: 190 W
• Tweeter amplifier, cont. output power (THD 180 W
• Tweeter amplifier, peak output power: 210 W
• Controller design: Analog, active
• Crossover – Frequency: 600 Hz / 2.0 kHz
• Crossover – Slope: 24 dB/oct
• Equalization – Bass: 0; -2.5; -5; -7.5 dB
• Equalization – Mid: 0; -1,5; -3; -4,5 dB
• Equalization – High: 1; 0; -1; -2 dB
• Parametric Equalizer: Bypassable
• Parametric Equalizer – Gain: +4 … -12 dB
• Parametric Equalizer – Frequency: 20 … 200 Hz
• Parametric Equalizer – Q: 1 … 8
• Protection circuitry: Limiter: low, mid, high
• Infrasonic filter: frequency/slope: 15 Hz; 12 dB/oct.

Input, analog

• Impedance, electr. symm.: XLR, 13 kΩ
• Impedance, bal. floating: XLR, 4.7 kΩ*
• Input sensitivity: -8 dBu/+6 dBu
• Max. input level: +19 dBu (6.9 Vrms)
• Gain Control: -9 … +6 dB
• CMRR : > 60 dB @ 15 kHz
• Displays, indicators – power on: Logo “red”
• Displays, indicators – limit / clip: Protect
• Mains: 100, 120, 230 V AC swichable
• Power consumption – idle: 36 VA
• Power consumption – full output AC; DC: 1.300 VA.

Mechanics :

• Cabinet surface: Painted
• Color standard: Anthracite (RAL 7021), silver (RAL 9006)
• Baffle cover: Optional metal grille, removable
• Drivers: Magnetically shielded
• Woofer: 265 mm (10″)
• Midrange: 76 mm (3″)
• Tweeter: 25 mm (1″)
• Mounting points: 8 x M5 on rear
• Height x width x depth: 645 x 330 x 444 mm (25 3/8″ x 13″ x 17 1/2″)
• Net volume internal: 42 liters.