series of amplifiers utilizes Edge's proprietary Laser Optical Bias
Circuitry. This new circuit incorporates a 630 nm wavelength laser
in each channel operating directly on the silicon substrate of the
bias transistors. The laser bias circuit in turn is part of a servo
feedback network. As the signal rises, the output of the laser increases,
and as the signal decreases the laser output falls. This keeps the
bias at the optimum operating point allowing a tenfold increase in
gain. The additional gain is achieved while maintaining signal integrity
(linearity) -- at light speed -- a first for solid state amplification.
The result is the clear musical nature of the NL Series as observed
by well-informed reviewers and buyers.
NL series also features oversize binding posts and up to 16* low-leakage
snap lock 10,000 µF caps per channel. Also the new low-leakage
/ low-field medical grade transformers are housed in magnetic stainless
steel enclosures for non induction and low noise performance. Chassis
construction on these amplifiers is 1/2" thick 6061 aluminum,
held together with marine grade stainless steel machine screws.
Heat sinks machined from solid 6061 bar stock keep transistors cool
without fans. The output stages utilize up to 32* N channel bipolar
transistors for extremely low output imedance.
NL Series amplifiers are built on a solid base of experience gained
through many years of field use with the AV series of amplifiers.
AV series amplifiers share the same rugged construction and attention
to detail found in all EDGE products.