Telonics PA-4200, PA-200 User Manual

Telonics PA-4200/PA-200

Stereo Power Amplifier

Telonics Pro Audio

Users Manual

©2010 Telonics, Inc. All Rights Reserved

2010.07.08

PRELIMINARY

The Telonics PA-4200

Stereo Power Amplifier

Congratulations on purchasing one of the world’s finest professional instrument power
amplifiers! The PA-4200 power amplifier is a state of the art audiophile quality unit designed
and built with the latest and best sounding technology, while being the most lightweight high­powered amplifier available in a 1U (single) rack space configuration.

The PA-4200 Power amplifier gives you dramatically better control of your sound. The result is
transparent smooth clean sound with added sustain, tight bottom end and silky highs. It’s just
what you’ve been looking for!

Telonics PA-4200 Stereo Power Amp Features:

• Compact size. Only takes up 1U rack space.

• Light Weight, only 5.2 pounds.

• Digital Thermal Management System.

• Wide frequency response, 20 Hz to 20 k HZ +/- 0.5 dB.

• Stereo Amp. Left and Right Level Controls conveniently located on the front panel.

• LED light-bar for lighting up your rack in low light venues.

• Ultra low noise – studio quality.

• Auxiliary AC power outlet for EFX units, switched with main power switch.

• Two 24 volt DC jacks to power up Telonics 24 VDC preamp and Telonics FP-100 foot

pedal. (No power strip required in 3U rack applications).

• Special Power On/Off circuit to minimize “pops” and speaker damage.

• Durable construction throughout. Made for years of trouble free use.

• Proudly made in the U.S.A. by musicians and engineers.

Telonics PA-4200 Power Ampl if ier 2

PRELIMINARY

PA-4200 STEREO POWER AMP CONTROL FUNCTIONS, JACKS, & INDICATORS:

FRONT PANEL

AC Power Switch This is the main power switch for the system. This switch also controls the AC

receptacle on the rear panel, the 24 VDC output for the Telonics preamps (rear
panel), and the 24 VDC output for FP-100 Foot Pedal (front panel). Eliminates
the need for a power strip in 3U rack systems.

Blue LED The blue LED will indicate that the main power is turned on.

Standby Switch This switch allows control of the AC power to the power amp alone, independent

of the system power. When placed in the Standby mode it allows for quicker cool
down of the amplifier if needed. This switch must be on in normal use as it
effectively “mutes” the power amplifier section in the off position.

Thermal
Management Status

Green LED The green LED will blink; on for a short time then off, once a second while the

Yellow LED The yellow LED will come on solid if the temperature is at or above the medium

Red LED The red LED will come on solid if the temperature is at or above the high set

R Input Level This is an input attenuator for the right audio channel. Fully clockwise will allow

L Input Level This is an input attenuator for the left audio channel. Fully clockwise will allow

LED Light Only This 1/4” jack powers up the optional LED light bar. CAUTION: NO AUDIO

24VDC Output This jack provides an isolated 24 volts DC to power up the MVP600 foot pedal.

The Thermal Management Status indicates the temperature status of the power
amplifier. The LEDs indicate a low (green), medium (yellow), or high (red)
temperature range.
The LEDs will also indicate a fan speed out of specification condition as
described later, in the Thermal Management System; Fan Speed out of Spec
Indication paragraph.

temperature is below the Low setting. This “wink” (short blink, once per second)
lets you know that the Thermal Management System is working. As the
temperature increases the green LED will come on solid while the temperature is
at or above the low setting.

set point.

point.

maximum output from the amplifier.

maximum output from the amplifier.

CABLES SHOULD BE PLUGGED INTO THIS JACK.

This jack accepts a special twist lock plug for a secure connection of power to the
pedal.

Telonics PA-4200 Power Ampl if ier 3