PA-123 Power Amplifiers utilize state-of-the-art linear technology to bring quiet direct-coupled capability to vibration or audio frequency systems. Flexible modular design enables tailoring of the amplifier to any application requiring from 1,000 to 8,000 VA.

Individual 1,000 VA power modules are connected to a common PS-123 Power Supply and are wired in either single-ended or bridged configurations. Oversized power supplies can be provided, enabling expansion of the amplifier through the simple addition of additional power modules.

Linear output stages insure minimum RF radiation to accompanying instrumentation and very low output impedance to maximize system damping. Adjusting the power supply rail voltage, to properly match the amplifier output impedance to the load, assures efficient, direct-coupled operation.

Oversize heat sinks dissipate internal energy with minimum air flow rates. Dual-speed cooling fans provide quiet operation during idle or normal dissipation conditions with plenty of additional capacity when needed.

Power-up soft start relays and line power sensing interlock circuitry eliminate accidental output transients during turn-on and turn-off.

Complete self protection for over-temperature, over-current, and instantaneous dissipation, as well as normally open and normally closed external interlock loops are standard. This provides maximum system compatibility and reliability.

For additional information on single or multichannel modular amplifiers, please call the Labworks technical support staff.