MBL Reference 9011 monoblock amplifier Specifications

Sidebar 1: Specifications

Description: Solid-state power amplifier usable as balanced monoblock or single-ended stereo amplifier. Rated power outputs, mono: 440W into 8 ohms (26.4dBW), 840W into 4 ohms (26.2dBW), 1390W into 2 ohms (25.4dBW). Rated power outputs, stereo: 130W into 8 ohms (21.1dBW), 210W into 4 ohms (20.2dBW), 330W into 2 ohms (19.2dBW). Frequency range: mono, DC–200kHz; stereo, DC–320kHz. Distortion: <0.001%, 1kHz at 50W into 4 ohms. Output current: 50A peak maximum. Signal/noise (no reference level given): mono, 114dB unweighted, 118dB A-weighted; stereo, 113dB unweighted, 123dB A-weighted. Damping factor: 300 at 1kHz. Input impedance: 20k ohms (XLR, mono), 10k ohms (RCA, stereo). Input sensitivity: not specified.
Dimensions: 19" (480mm) W by 13" (320mm) H by 34" (870mm) D. Weight: 223 lbs (101.4kg); 275 lbs (125kg) in flight case.
Finishes: Piano Black, Piano Arctic Silver, or Piano White, each with chrome or gold-plated accents. Custom finishes by request.
Serial Numbers Of Units Reviewed: 40131, 40331.
Price: $60,000 each as stereo amplifier, $120,000/pair as monoblocks. Approximate number of dealers: 10.
Manufacturer: MBL Akustukgerate GmbH & Co., KG, Kurfurstendamm 182, Berlin 10707, Germany. Tel: (49) 030-2300584-0. Fax: (49) 030-230058410. Web: www.mbl-germany.de. US distributor: MBL North America, Inc., 263 West End Avenue, Suite 2F, New York, NY 10023. Tel: (212) 724-4870. Fax: (212) 724-4871. Web: www.mbl-northamerica.com.

MBL Akustukgerate GmbH
US distributor: MBL North America, Inc.
263 West End Avenue, Suite 2F
New York, NY 10023
(212) 724-4870

K.Reid's picture

The size and build quality of this amplifier must be seen to be appreciated. The meticulous attention to detail will give one insight into the time and effort that goes into building world class amplification.

I heard (or more appropriately experienced) this amplifier at CES when it was driving the MBL 101 Extreme. This amplifier is one of the most transparent-to-the-source and dynamically potent components that I have heard.

Used with the appropriate sources, speaker cables and interconnects - one should prepare for a great amount of listening enjoyment from the effortless quality of the MBL 9011.

soulful.terrain's picture


 I totally agree with your assessment. MBL is in a class all by themselves.

MBL-Russia's picture

It is fantastic!