MBL 9011

Mono - Stereo Power Amplifier MBL 9011

The 9011 features everything that its smaller sibling, the 9008 A, has to offer – and then some. It begins with the delivery of more long-term power output and short-term current distribution, a feat achieved by way of three groups of eight output transistors each, eight electrolytic and charging capacitors, plus a third 400VA toroidal transformer to further increase charging speed and facilitate speaker load matching. Total control. Its heft in power is matched by a total component weight that eclipses an anchor on a luxury yacht. This 95 kg (215 lbs) colossus unleashes up to 50 amps of peak current and a pulse output of up to five kilowatts into a 2 Ohm load. 

The result? Despite the amplifier’s huge on-board power reserves, the 9011 delivers a studio-clear, non-electronic sound that hearkens to the golden analog age of musical purity. Unrelenting, even when powering low-impedance speakers, the amplifier presents pitch-black backgrounds and remains nimble and tight across the audio band, with blistering high-frequency transients, a rich and airy three-dimensional midrange, and a fully extended, well-dampened bottom-end. The MBL 9011 delivers the full spectrum of front-row, concert-like sound reproduction from your cherished music.

The 9011 at a glance

• Designed as a differential-balanced mono block amplifier, but can also be used as a stereo power amplifier in single-ended mode
• Combination of Class A and Class AB amplification
• Direct, high-precision signal processing by Direct Push-Pull technology
• Unparalleled resolution of the finest musical nuances
• Sound tuning/speaker impedance matching via two separate switchable power transformers
• Two separate power input sockets
• Extremely quiet signal ground by means of fully symmetrical signal flow from the input to the output
• Power transistors located on a foundation of vibration-impeding solid copper
• Compensation of all transistor non-linearities by means of unique Isolated Gain Cell circuit
• Sixteen output devices deliver 840 watts of musical power (at 4 Ω) with an output current of 50 amps, maximum pulse power: 5,000 watts (at 2 Ω)
• Six high-quality, in-house manufactured solid copper connecting terminals with the option of bi-wiring
• Weight of 95 kg (215 lbs)

Technical Specifications