Crest Audio PA150 Specifications

PA ™ 150 power amplifier
description
The PA 150 is a rugged, medium-power amplifier with features
that make it stand alone in the industry. It's a rack-mountable
unit which occupies only one rack space, and yet packs a 75 W RMS
per channel punch into 4, 8, or 16 Ohms. It's selectable; a feature
seldom found on the typical solid state amp. In bridge mode, this unit
delivers 150 W RMS into 8, 16, and 32 Ohms.You might ask why 32
Ohms; that's the load impedance for a 150 Watt, 70 Volt distribution
system.There's no fan in this unit to make noise. Adequate cooling is
provided by two massive heat sinks. Each channel is protected from
excessive operating temperatures with a thermal/fault system that is
automatic, and only activates under extreme conditions.
The PA 150 has an exclusive SPS compression system that senses
conditions which might overload the amplifier and activates
compression circuitry when clipping is imminent.This technique uti-
lizes every precious Watt available to power transformer with three
different voltage taps.The rear panel three-position selector switch
then gives this amp the impedance selection capability by changing the
internal "rail" operating voltages.Toroidal power transformers offer
very high efficient operation (cool), have very low magnetic fields
(hum), and are relatively small in size (weight).
All controls are located on the rear panel, and each channel is
equipped with a separate level control.The inputs are
electronically balanced. Both input and output are accessed via
barrier strips.
High slew rate, high damping factor, low distortion, and awesome
features make the PA 150 the obvious choice for most demanding
commercial/professional applications and permanent
installations.
Spec Sheet for Crest Commercial Series
features
• 19" rack-mountable
• one rack space
• 75 W RMS per channel
• 150 W RMS bridge mode
• selectable 4, 8, or 16 Ohms
• SPS ™ compression on each channel
• electronically balanced inputs
• convection cooled
front panel
• heavy-duty rocker power switch
• LED power indicator
• SPS activation LED on each channel
rear panel
• barrier strip inputs
• barrier strip outputs
• detented 1 dB level controls
• stereo/bridge mode switch
• impedance selector switch
• ground lift switch