Chameleon Labs 500 Series User Manual
Page 2
Your Model 581 microphone preamplifier card has a transformer
balanced input with a gain range of +25dB to +80dB.
The Model 581 has been carefully constructed and individually
tested for quality. It utilizes class ‘AB’ circuitry. This unit is
made with 100% discrete components and was fabricated to
precisely match vintage counterparts manufactured in the early
70’s.
The Chameleon Labs Model 581 is based on high audio
performance design techniques. By employing classic circuit
design, polystyrene capacitors, hand selected components and
custom wound transformers, Chameleon Labs ensures that the
Model 581 will exhibit classic audio sound. It is also designed to
comply with any 500 series powered chassis approved by the
API
®
VPR Alliance.
Your Model 581 represents a dramatic breakthrough in delivering
vintage audio performance at an affordable price.