The Neumann KH 120 A active analog studio monitor is designed for use as a near-field loudspeaker or as a rear loudspeaker in larger multi-channel systems. Featuring the latest in acoustic and electronic simulation and measurement technologies to ensure the most accurate sound reproduction possible, it boasts a Mathematically Modeled Dispersion waveguide, flexible acoustical controls, analog class-AB amplifiers, a large headroom analog input and an extensive mounting hardware range. Powerful amplifiers with large headroom deliver 80 watts (peak) to both the 5.25″ woofer and 1″ tweeter.The KH 310 three-way active tri-amplified monitor features a Mathematically Modeled Dispersion Waveguide (MMD), flexible acoustical controls, various input options and an extensive range of mounting hardware. This allows the loudspeaker to be used in diverse acoustical conditions, with any source equipment and in a wide variety of physical locations. The KH 310 represents the latest in acoustic and electronic simulation and measurement technologies to ensure the most accurate sound reproduction possible.The KH 310 is designed for use as a near-field monitor, as a front loudspeaker in mid-sized multi-channel systems, or as a rear loudspeaker in a larger multi-channel system. It can be used in project, music, broadcast centers, OB vans, and post production studios for tracking, mixing, and mastering.Main Features & Bennifits:Powerful alloy fabric domeLow-distortion high-frequency reproductionElliptical Mathematically Modeled Dispersion (MMD) waveguide, with wide horizontal and narrow vertical dispersion Smoother off-axis responseMore forgiving of diverse acoustical environmentsFreedom of movement across the mixing consoleReduce reflections off the mixing consoleNew in-house simulated driversLatest modeling techniques used to minimize non-linear (intermodulation) distortion Fabric dome, neodymium magnet, midrange driverDedicated driver reproduces important midrange frequencies, which is especially important for speech and vocalsLight weight dome has better transient response and less breakup modes than cone designsHigh power magnet reduces harmonic and intermodulation distortionLong throw composite sandwich cone bass driver with Extremely Linear Force Factor (ELFF) and ribbed surroundDamping of break-up modes and low distortion at high sound levelsLinear pistonic motor gives a very low harmonic distortion even at high excursionsReduced radial break-up modes on the ribbed surroundTwo-color + dimmable Neumann logoDisplays operation status and activation of the extensive protection systemDimmable for low lighting level conditions or behind the screen applicationsCompact sealed three-way cabinet design (magnetically shielded)No standing wave resonancesFastest bass transient responseReduced intermodulation distortion in midrangeOne-piece front panel with no discontinuitiesReduced diffraction and smoother frequency responsePowerful analog class AB amplifiers with large headroomImproved transient responseIndependent thermo limiters for woofer, midrange dome and tweeter to protect the voice coils. Woofer soft clip and excursion limitersFast acting, high reliability and allows extraction of the maximum performance from the systemProduction consistency due to individual hand-alignment in final testAny KH 310 is pair-matched to any other KH 3104-position bass, low-mid and treble acoustical controlsMore control in diverse acoustical environmentsWide range input gain and output level controlsEasier interfacing with signal sourcesGround liftReduced noise in electrically noisy environments and over-comes ground loopsUniversal switched-mode power supply (100 240 V)One version works in any country and robust to poor quality mains supplyExtensive mounting hardware optionsMore flexibility in mounting cabinets in more diverse locations and backwards compatibility with previous modelsOptional robust metal grille Can be used, if required, to protect the driversOptional transportation accessoriesStylish soft carry bag with space for cablesRobust wooden flight caseSpecifications:Acoustics:3 dB free field frequency response 34 Hz – 21 kHz, 3 dBPass band free field frequency response 36 Hz – 20 kHz, 2 dBSelf-generated noise (with input gain set to 100 dB for 0 dBu) < 20 dB(A) at 10 cmTotal harmonic distortion < 0.5 % at 95 dB SPL at 1 m > 85 HzMax. SPL in full space / calc. in half space at 3% THD at 1m 110.3 / 116.3 dB SPL (averaged between 100 Hz and 6 kHz)Bass capability: Max. SPL in half space at 3% THD at 1m 104.5 dB SPL (averaged between 50 Hz and 100 Hz)Max. short term SPL with IEC-weighted noise (IEC 60286-5) 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) 100 dB(C) SPL (full range) 107 dB(C) SPL (with subwoofer)Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single/pair) 93 / 99 dB(C) SPL (full range) 94 / 100 dB(C) SPL (with subwoofer)Electronics:Bass / Midrange / Treble Class AB amplifiers, cont. (peak) output power* 150 W (210 W) / 70 W (90 W) / 70 W (90 W)Controller design Analog, activeCrossover frequencies 650 Hz / 2 kHzCrossover slope 24 dB/oct, 4th orderEqualization – Bass 0, 2.5, 5, 7.5 dBEqualization – Low Mid 0, 1.5, 3, 4.5 dBEqualization – Treble +1, 0, 1, 2 dBProtection circuitry Independent thermo limiters for woofer, midrange dome and tweeter. Woofer soft clip and excursion limitersInfrasonic filter – frequency; slope 15 Hz; 6 dB/octInput XLR, analog electronically balancedImpedance, electrically balanced > 13k OhmsInput gain control (sensitivity) 0 dBu to 15 dBuOutput level control 94, 100, 108, 114 dB SPLCMRR > 56 dB @ 100 – 15 kHz Max. input level +24 dBuDisplays and indicators – power on Neumann logo WhiteDisplays and indicators – limit / clip Neumann logo RedMains Power Supply, voltage; frequency 100-240 V~; 50/60 HzPower consumption – idle 24 WPower consumption – full output 300 WMechanics:Cabinet surface finish, colour Painted wood and polyurethane, Anthracite (RAL 7021).Aluminum electronics panel, Black.Baffle cover Optional removable metal grilleOperating conditions +10 C to +40 C (+50 F to +104 F), <90% RH, non-condensingTransport/storage condition 25 C to +70 C (13 F to 158 F), <90% RH, non-condensingDrivers Magnetically shieldedWoofer 210 mm (8 1/4")Midrange 75 mm (3")Tweeter 25 mm (1")Mounting points 2 x M8 on side panels, depth from outside of cabinet 25 mm (1).Rear panel screws for attaching LH 41 base plate.Rear panel bracket.Product dimensions (height x width x depth), mm (inches) 253 x 383 x 292 mm (10" x 15 1/8" x 11 1/2")Net volume, internal / external 16.2 liters / 28.3 litersProduct weight 13.0 kg (28 lbs 11 oz)Packed dimensions (height x width x depth), mm (inches) 590 x 380 x 360 mm (23 1/4" x 15" x 14 1/8")Packed weight and cube 16.8 kg (37 lbs 1 oz), 0.081 mDelivery includes 1x KH 310 A 3x Main cables (European, UK and US version 4x Self-adhesive feet 1x Operating manual 1x Supplement "Getting Started Quickly"