George Massenburg Labs 8900 Dynamic Range Controller

8900 Dynamic Range Controller description:

The George Massenburg Labs 8900 Dynamic Range Controller. The ultimate automatic gain-control device.

The George Massenburg Labs 8900 is a dual channel unit with an all discrete-transistor audio path. It delivers an extraordinary range of control allowing simulation of various fundamental automatic gain-control characteristics. The 8900 is the result of 22 years of research, prototyping, limited manufacturing, and features two RMS and one peak detector per channel, multiple variable crest factor controls and selectable soft/hard knee adjustments. The unit combines highly accurate log converters, true RMS detectors (which provide control of signal energy not just level), and other modern analog processing techniques in a stable "feed-forward" topology. The GML 8900 also has side chain input and fits into a 2U x 19 inch rack space. It requires the external GML 9015 Power Supply.

The main features of the George Massenburg Labs 8900 include:

• The ultimate automatic gain-control device
• 2 channels, each with Separate Peak and Dual RMS Detectors
• Discrete VCA; Discrete Audio Chain
• Front Panel Sidechain; Stereo and multiple unit control link
• 40 Segment Tricolor meter; Meter range -20 to +20, true gain through unit
• 4 segment instantaneous ratio meter (approximate indication of soft knee actuation)
• Peak, FastRMS and SlowRMS indicators