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Klein + Hummel O110D

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This item has either been discontinued by the manufacturer or is no longer available to purchase on our website.

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(800) 771-8330

5.5" Active Bi-Amplified Two-Way Nearfield Studio Monitor with Analog & Digital Inputs - Black


Active studio monitor for digital audio processing. The O110D meets all the requirements of the digital age. Offering digital inputs in AES/EBU and S/P-DIF format, it eliminates the need for external D/A converters at audio workstations or mixing consoles. The integrated D/A converter has a 24 Bit resolution and accepts sampling rates from 32 to 96 kHz. Its analog input is electronically balanced, while the AES/EBU input features a high-quality transformer. This professional near-field monitor is the perfect solution for small digital studios, offering unbeatable neutral reproduction and accuracy across the entire sound spectrum, and a precision of bass reproduction up to 56 Hz which compares favorably to much larger systems.


  • Use of high-quality drivers

  • Composite sandwich woofer cone eliminates colorations

  • Low-distortion bass reproduction from long excursion woofer

  • Flux-compensation reduces distortion in the midrange

  • Low-distortion high-output reproduction from 1" titanium fabric dome tweeter

  • Unconventional enclosure

  • Compact homogenous enclosure made from LRIM (Low Resonance Integral Molding) minimizes resonant colorations

  • Low-compression bass reproduction from generously proportioned bass reflex ports

  • Acoustic centers of the loudspeaker lie on the same plane

  • Non-parallel cabinet shape reduces internal standing waves

  • Homogenous front baffle reduces acoustical diffraction

  • Magnetically shielded and modern cabinet design

  • Numerous placement options and mounting accessories

  • Removable woofer grille

  • Various color options available

  • Active 24 dB/oct. slope crossover

  • Power and overload display integrated into logo

  • Controls adapt the monitor's response to compensate for the room location

  • Excellent immunity from EMI interference

  • Integrated D/A converter with 24-bit resolution and 32-96 kHz sampling rate

Delivery Includes:

  • 1x O110D

  • 1x Power cord

  • 1x Operation manual


  • Acoustical:

  • Free field frequency response 1: 58 Hz - 20 kHz, +/- 2 dB

  • Free field frequency response 2: 56 Hz - 24 kHz, +/- 3 dB

  • Self generated noise level at 10 cm: < 20 dB(A)

  • THD < 0,5% at 1 m distance from: 90 dB SPL (> 150 Hz)

  • Max. SPL in half space at 3% THD in 1m: 107.7 db SPL

  • Max. SPL averaged between: 100 Hz and 6 kHz

  • Electrical:

  • Woofer amplifier, cont. output power (THD < 0.1%): 50 W

  • Woofer amplifier, peak output power: 80 W

  • Tweeter amplifier, cont. output power (THD < 0.1%): 50 W

  • Tweeter amplifier, peak output power: 80 W

  • Controller design: Analog, active

  • Crossover - Frequency: 2.5 kHz

  • Crossover - Slope: 24 dB/oct

  • Equalization - Bass: 0; -2.5; -5; -7.5 dB

  • Equalization - Mid: 0; -1.5; -3; -5 dB

  • Protection circuitry: Limiter: low, high

  • Input, analog: Impedance, electrically balanced: XLR, 14 kΩ

  • Input sensitivity: +6 dBu

  • Max. input level: +20 dBu (7.8 Vrms)

  • Gain Control: 0 ... -24 dB

  • CMRR: > 60 dB @ 15 kHz

  • In-/Output, digital: XLR, (BNC): AES / EBU (AES3id, S/P-DIF)

  • Impedance XLR: 110 Ω, balanced floating

  • Impedance BNC: 75 Ω, non symmmetrical

  • Input switching: Analog/digital - left/mono/right

  • Digital converter - resolution, design: 24 Bit DA, Delta Sigma

  • Digital converter - sampling rate: 32 kHz - 96 kHz

  • Displays, indicators - power on: K + H logo "red"

  • Displays, indicators - limit / clip: K + H logo "blinking"

  • Mains: 230 V, 120 V; 100 V AC

  • Power consumption - idle: 13 W

  • Power consumption - full output AC; DC: 73 W

  • Mechanical:

  • Cabinet surface: Painted

  • Color standard: Anthracite (RAL 7021), silver (RAL 9006)

  • Special (add-on price): On request

  • Baffle cover: Fixed metal grille

  • Drivers: Magnetically shielded

  • Woofer: 145 mm (5.5")

  • Tweeter: 25 mm (1")

  • Mounting points: 2 x M8 on rear

  • Height x width x depth: 267 x 170 x 190 mm (10.5" x 6.7" x 7.5")

  • Net volume internal: 6.5 liters

  • Weight: 5 kg (11 lbs)

  • Accessories:

  • On a floor stand:LH31 + LH28LH31 + LH28 + LH33LH48 + LH31 + K&M stand 26790 and 26795

  • On a stand:LH31 + LH7LH31 + LH8

  • On a lighting stand:LH29 + LH31

  • On a wall:LH32KG30LH31 + LH27LH38 + LH27LH38 + LH47 + LH45

  • Off a ceiling:LH38LH38 + LH27LH31LH31 + LH27LH31 + LH47 + LH43LH31 + LH47 + LH46LH38 + LH47 + LH43LH38 + LH47 + LH45LH38 + LH47 + LH46

  • Off a lighting or truss bar:LH38 + LH29LH31 + LH29

  • Other accessories: FO110, C15

Q & A

Klein + Hummel
MFR Part Number
Product Category
Powered Monitors
Unit of Measure
Shipping Weight
15.00 lbs.
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