The KH 310 is a three-way tri-amplified monitor with thermally protected Class AB amplifiers (210 W and two times 90 W). Its Mathematically Modeled Dispersion™ (MMD™) waveguide delivers sound waves into the room with superior accuracy. The drivers are modeled using Neumann’s in-house developed software, which reduces non-linear distortion in every situation. 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 precisely controlled dispersion characteristics optimize reproduction in different room configurations and the response is extremely adaptable through various acoustical control settings. BEST WORKING ENVIRONMENT: CLOSE TO PROFESSIONAL EARS The KH 310 is typically used in near-field applications such as project, music, broadcast and post-production studios for recording, mixing and mastering. It it also available as a digital input “D” version. A SOLID BASS FOUNDATION, HIGH IMPULSE FIDELITY With its powerful switched-mode power supply and tri-channel amplifiers, the KH 310 realizes sound pressure of up to 116.3 dB and thereby retains a high-resolution and neutral representation across the entire frequency response. This provides sufficient energy for even the most demanding impulse dynamics with no distortion or losses. The bass goes down to an impressive 34 Hz. The closed cabinet design means a lower group delay. This results in almost the entire frequency range being reproduced at the same time; the transient response is precisely controlled at all times. ULTRALIGHT FABRIC DOME OPTIMIZES MIDRANGE REPRODUCTION The optimized design of the driver enables a pristine sound right down to the lowest bass regions. For most applications, the rich foundation offers enough bass extension to work cleanly on the mix without the necessity of a supplementary subwoofer. For demanding treble sounds, our own specially developed, powerful alloy fabric dome ensures distortion-free clarity in the high-frequency range. The fabric midrange dome captures the middle frequency range with the utmost precision. Its ultralight material and the powerful neodymium magnet enable a significantly better transient response with considerably less distortion than comparable midrange domes. THE PERFECT COMPLEMENT: THE KH 750 DSP SUBWOOFER In addition to its outstanding acoustic characteristics this DSP-based subwoofer not only offers excellent acoustic properties, but - in combination with the Neumann.Control iPad® app - it also provides the possibility of adapting a KH 310 stereo pair to the room using the patented "Guided Alignment“. Furthermore the entire stereo system can be controlled via the app. Detailed information about all additional features can be found here. HUNDREDS OF GOOD REASONS FROM THE NEUMANN PHILOSOPHY The KH 310 has 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 310, 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 310. 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. You can read more about the Neumann philosophy for studio monitors here. ree field frequency response ±6 dB 30 Hz … 22 kHz Free field frequency response ±3 dB 34 Hz … 21 kHz Free field frequency linearity deviation between 100 Hz and 10 kHz ± 1.1 dB Reproduction accuracy between 100 Hz and 10 kHz: 100%, 80%, 50% of loudspeakers produced ±0.87; ±0.39; ±0.23 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 (>85 Hz) Max. SPL calc. in half space at 3% THD at 1m (averaged between 100 Hz and 6 kHz) 116.3 dB SPL Max. SPL in full space at 3% THD at 1m (averaged between 100 Hz and 6 kHz) 110.3 dB SPL Bass capability: Max. SPL in half space at 3% THD at 1m (averaged between 50 Hz and 100 Hz) 104.5 dB SPL Max. short term SPL with IEC-weighted noise (IEC 60268-5) at 1 m, in typical listening conditions 113 dB(C) SPL Max. short term SPL with music material at 2.3 m in typical listening conditions (pair / full range) 100 dB(C) SPL Max. short term SPL with music material at 2.3 m, in typical listening conditions (pair with subwoofer) 107 dB(C) SPL Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair full range) 93 / 99 dB(C) SPL Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair with subwoofer) 94 / 100 dB(C) SPL Analog input(s) XLR: analog electronically balanced Analog input impedance >13k Ohms Max. input level +24 dBu 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 Controller design Analog; active Crossover frequency 650 Hz and 2.0 kHz Crossover slope 24 dB/oct; 4th order Equalization: Bass 0; -2.5; -5; -7.5 dB Equalization: Low-Mid 0; -1.5; -3; -4.5 dB Equalization: Treble +1; 0; -1; -2 dB Protection circuitry Independent thermo limiters for woofer, midrange dome and tweeter. Woofer soft clip and excursion limiters. Amplifier overheat. Infrasonic filter: frequency; slope 15 Hz; 6 dB/oct. Display: On; Normal Operation Neumann logo “White” Display: Limit / Clip / Errors / Protection /Boot Mute / Shut Down Mute Neumann logo “Red” Display Brightness White: 100%/60%/30%/off; Red: 100%/60%/30% Output power woofer amplifier (THD+N with limiter deactivated: 10%) 210 W Output power midrange amplifier (THD+N with limiter deactivated: 10%) 90 W Output power tweeter amplifier (THD+N with limiter deactivated: 10%) 90 W Output power woofer amplifier (THD+N with limiter deactivated: 0.1%) 150 W Output power midrange amplifier (THD+N with limiter deactivated: 0.1%) 70 W Output power tweeter amplifier (THD+N with limiter deactivated: 0.1%) 70 W Mains Power Supply: input voltage; frequency 100-240V; 50/60 Hz Power consumption (230 V / 100 V): Idle 24 W Power consumption (230 V / 100 V): Full output 300 W Cabinet material Polyurethane front, wooden sleeve, 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 210 mm (8 1/4") magnetically sheilded Midrange 75 mm (3") with magnetic sheilding Tweeter 25 mm (1") with protecting black metal grille Mounting points 2 x M8 on side panels; thread depth from outside of cabinet 25 mm (1”);Rear panel screws for attaching LH 41 base plate Product dimensions (height x width x depth) 253 x 383 x 292 mm (10" x 15 1/8" x 11 1/2") External net volume 28.3 liters Product weight 13.0 kg (28 lbs 11 oz) Packed dimensions (height x width x depth), mm (inches) 360 x 380 x 590 mm (14 1/8" x 15" x 23 1/4") Packed weight 16.8 kg (37 lbs 1 oz) Packed cube 0.081 m³