Mono - Stereo Power Amplifier MBL 9008 A

The listening experience it creates when powering the scorching vocals of Janis Joplin can be soul-searing, yet nothing is hot to the touch with the MBL 9008 A. Thanks to its über-efficient heat sinks, this powerful amplifier runs barely warm, even when driving low impedance loudspeakers. Its first 50 watts of output are in pure Class A operation. With up to 840 watts of musical power at 4 ohms, and a maximum of 40 amps peak current in optimized balanced mono operation, the modest operating temperature for an amplifier of this size is a result of an abundance of heat-sink surface area…and MBL’s design commitment to creating a thermal buffer. For example, if a heavy drum beat pushes the output transistors on a conventional amp to their limit, the orchestra’s brass, wind and string instruments will come across sounding stressed or jarring until the transistors themselves have come back in control. This never occurs with the MBL 9008 A. The output transistors are protected by an Isolated Gain Cell circuit, which is recharged by a user-selectable choice of one or two special toroidal transformers. Each has its own power plug input, ensuring the semiconductors operate in their linear range while avoiding any possibility of dynamic compression.

The assembled components rest on a massive solid copper foundation to avoid vibrational interference that may distort the music signal, and to act as preliminary heat sinks. In this way, music and power are perfectly dovetailed. The MBL 9008 A impresses with authority and simplicity in the face of all musical tastes and challenges. In either mono or stereo operation, regardless of signal demand, this amplifier shows no hint of stress at any SPL, with a sound that remains warm, detailed, and in total control.