505988 Neumann KH 420 A G Studio Monitor 330W, Sennheiser

Description:

505988 Neumann KH 420 A G Studio Monitor 330W, Sennheiser

THE GOLD STANDARD IN THE MIDFIELD RANGE
The KH 420 is designed for a working distance of 1.5 to 3 m (5’ to 9’). It handles this space effortlessly thanks to great power reserves and precisely concentrated dispersion. Even in diverse acoustical environments the KH 420 remains neutral and clear in every detail down to the subtlest nuances. No subtlety is lost; every sound element can be localized.

The KH 420 is a three-way tri-amplified monitor with thermally protected Class AB amplifiers (330 W and two times 140 W). Just like the drivers, its Mathematically Modeled Dispersion™ (MMD™) waveguide is engineered for optimum precision. Sound distributed in a horizontally precise manner ensures flexibility in the listening position; the narrower vertical dispersion reduces the negative effects of nearby reflections, for example from a desk or mixing console. The dispersion of the KH 420 is deliberately designed to be narrower, to guarantee reference sound at longer working distances.

BEST WORKING ENVIRONMENT: CLOSE TO PROFESSIONAL EARS
The KH 420 is designed for midfield applications and as main monitor in project, music, broadcast and post-production studios for recording, mixing and mastering. And in a multi-channel system, it can also be freely combined with all other Neumann studio monitors.

PORTS AND HIGH DYNAMICS: NO LONGER A CONTRADICTION
With its tri-channel amplifiers the KH 420 also realizes sound pressures of up to 122.4 dB. And it thereby retains high-resolution and neutral representation across the entire frequency response. This also includes an exceptional bass response down to 26 Hz. Despite using ports, there is no “overhang” or audible resonance in the low frequency range and the transient response is precisely controlled at all times.
The computer modeled chassis is constructed of LRIM™ materials which eliminates standing wave resonances and suppresses intermodulation distortion, especially in the midrange.
For demanding treble, our own specially developed, powerful alloy fabric dome ensures distortion-free reproduction. The fabric dome captures the midrange with utmost precision. Its ultralight material and the powerful neodymium magnet enable a significantly better transient response with considerably less distortion than comparable midrange drivers.

The KH 420 has also been developed true to the Neumann philosophy for monitor loudspeakers. Every component, every shape, every signal and every wave motion is a consequence of this philosophy. No form or component is there without reason. There are hundreds of tangible reasons built into the KH 420, which all stand for exceptionally pure and neutral sound. These include, for example, curvatures of the housing that reduce edge diffraction. Also included is the pistonic output of the bass driver which does not give rise to harmonic distortions, even with the highest sound peaks. Some of these reasons are obvious in the KH 420. Others Neumann prefers to keep to itself. But together, each can be heard – sound professionals in both large and small studios all around the world can testify to this.

Frequency Response (± 6 dB free field): 25 Hz - 22 kHz.
Frequency response (± 3 dB free field): 26 Hz - 22 kHz.
Linearity deviation of the free field frequency between 100 Hz and 10 kHz: ± 1.2 dB.
Accuracy 100 Hz to 10 kHz: 100%, 80%, 50%: ± 0.38; ± 0.36; ± 0.22 dB.
Self-noise at 10 cm (with input gain set to 100 dB SPL for 0 dBc): <20 dB (A) SPL.
Output sine wave with THD <0.5% at 1 m half-space: 95 dB SPL (> 100 Hz).
Max. sound pressure level, calc. in half space at 3% THD at 1 m (average from 100 Hz to 6 kHz): 122.4 dB SPL.
Max. SPL at 3% THD at 1 m (average between 100 Hz and 6 kHz): 116.4 dB SPL.
Bass Range: Max. SPL half-space at 3% THD at 1m (50Hz to 100Hz average): 109.9dB SPL.
Max. IEC (IEC 60268-5) weighted short-term sound pressure at 1 m, typical listening conditions: 109 dB (C) SPL.
Max. short-term SPL with music material at a distance of 2.3 m under typical listening conditions (steam / full range): 103 dB (C) SPL.
Max. short-term sound pressure with musical material at a distance of 2.3 m, in typical listening conditions (paired with a subwoofer): 109 dB (C) SPL.
Max. Long-term SPL with pink noise at 2.3 m, typical listening conditions (single / pair full range): 90/96 dB (C) SPL.
Max. Long-term SPL with pink noise at 2.3m, typical listening conditions (single / pair with subwoofer): 90/96 dB (C) SPL.
Analog input: XLR.
Analog input impedance: 14 kOhm.
Max. input level: +24 dBu.
Common Mode Rejection Ratio (CMRR):> 56 dB @ 15 kHz.
Input Gain (Sensitivity) Adjustment: 0 dB - -15 dB.
Output Level Adjustment (Output Level 1m @ 0dBu Input): 94; 100; 108; 114 dB SPL.
Controller design: analog; active.
Crossover Frequencies: 570 Hz and 2.0 kHz.
Crossover slope: 24 dB / oct. 4th order.
Bass equalization: 0; -2.5; -5; -7.5 dB.
Equalization of mid-low frequencies: 0; -1.5; -3; -4.5 dB.
Treble equalization: +1; 0; -1; -2 dB.
Equalizer: Parametric Equalizer: Gain +4 ... -12 dB.
Equalizer: Parametric Equalizer: Bypass, 25-80 Hz; 50-160 Hz; 100-320 Hz.
Equalization: Parametric Equalizer: Q 1 - 8.
Protection circuit: independent thermal limiters for woofers and tweeters. Speaker travel stops. Amplifier overheating protection.
Subsonic filter: frequency; slope: 9 Hz; 6 dB / oct.
Display: included; normal operation: Neumann logo "White".
Display: Limit / Trim / Errors / Protect / Mute on Boot / Mute on Shutdown: Neumann logo "Red".
LF amplifier output power (THD + N with limiter off: 10%): 330 W.
Midrange amplifier output power (THD + N with limiter off: 10%): 140 W.
RF amplifier output power (THD + N with limiter disabled: 10%): 140 W.
LF amplifier output power (THD + N with limiter off: 0.1%): 295 W.
Midrange amplifier output power (THD + N with limiter off: 0.1%): 130 W.
RF amplifier output power (THD + N with limiter off: 0.1%): 130 W.
Power supply: 100-240 V; 50/60 Hz.
Power consumption (230 V / 100 V) in standby mode: 60 W.
Power consumption (230 V / 100 V) full power: 800 W.
Body material: wooden body, polyurethane waveguide, aluminum electronics panel.
Body Finish: Painted; metallic anthracite (RAL 7021) / black (RAL 9005).
Operating conditions: from +10 to + 40 С; <90% RH; without condensation.
Transportation / storage conditions: from -25 to + 70 C; <90% RH, non-condensing.
Woofer: 210 mm (8.25 ") magnetically shielded.
Midrange driver: 75 mm (3 ") magnetically shielded.
Tweeter: 25 mm (1 ") with protective black metal grille.
Mounting points: 8 x M8 on the back.
Dimensions: 645 x 330 x 444 mm.
Weight: 35 kg.
Dimensions in packing: 775 x 610 x 590 mm.
Shipping weight: 41 kg.
Package volume: 0.279 m3.>