Four Channel Microphone Preamplifier

Unsurpassed ambience retrieval 
Transformerless design with matched hi-speed discrete transistor octet has +23 dBu input headroom: no attenuator “pads” needed 
Uncolored timbral accuracy at all dynamic levels 
Entirely balanced audio path with precision components maintains signal integrity: THD under 5 ppm (.0005%) 
Effortless, vividly realistic musical performance 
Laser-trimmed FET-based output stage has 32 dBu headroom: drives 1000 foot (300 m) cable runs with ease 
Standard 36-step gain controls (1.5 dB per step) are stereo matched to .08 dB 
Ultra-clean universal power supply 
Grayhill gold mil-spec switching 
Silver Teflon power wiring 
Welded 16 gauge steel rack chassis 
Lovingly hand-crafted in Northern California 

Technical Specifications