Tech 21 SansAmp PSA-1 User Manual

Contents

Tech 21 SansAmp PSA-1 User Manual Manual pdf 3 page image

INSTALLATIONP OWERING THE SANS AMP PSA-1The SansAmp PSA-1 is powered by potentially hazardous voltage. Therefore, observe the fol-lowing safety precautions.WARNING: To avoid the risk of shock or fire, do not expose this unit to moisture. Do notremove the chassis from its cabinet, or remove metal covers from chassis parts. Removing thechassis from its cabinet exposes extremely dangerous high voltages. There are no user-service-able parts inside. Hazardous voltages are present inside the chassis. Refer all servicing to quali-fied personnel.CAUTION: Never modify the AC power cord. If the original AC power cord becomes dam-aged, refer your SansAmp PSA-1 for servicing.WARNING: Attempting to repair this unit is not recommended and will void its warranty.NOTE: In the U.S. and Canada, servicing of SansAmp PSA-1 is performed at factory only.In other countries, please refer repairs to the local Tech 21 authorized distributor.FRONT PANELThe SansAmp PSA-1 gives you access to specific tone-shaping characteristics within the tubeamplifier sound spectrum. Controls of this nature are traditionally inaccessible on stock amps,and adjustments like these can ordinarily be achieved only by permanent professional modifi-cation.Tonality, for instance, can be adjusted in a variety of ways. The individual CharacterControls, labeled Buzz, Punch, Crunch, and Drive, offer different results than the post EQsection (the controls labeled Low and High).The gain structure can be adjusted via the Pre-Amp control, which results in a different kindof overdrive than the Drive control. Additionally, Buzz, Punch, and Crunch each affect thegain structure within specific frequency bands.As you experiment and become familiar with the controls’ interrelationships, you’ll be able tocustomize your own sounds and store them in the SansAmp PSA-1’s memory.4Because the SansAmp PSA-1 is fully programmable, everything you do is monitored by theSansAmp PSA-1’s internal computer. Whenever you turn a knob from the setting stored inmemory, one of the two dots in the upper left corners of the LEDnumerical display blinks.This feature is useful when you want to know the position of eachknob’s setting in the memory. Here’s how to use it::Assume that the preset point for a particular knob is 12 o’clock.When you turn that knob, it “unlocks.” One of the two dotsabove the digits in the LED numerical display will blink. Thearrows above the LED display tell you which directionyou need to turn the knob to find the preset point. Theup arrow tells you to increase the setting; the down arrowtells you to decrease.If you are far below the preset point, the left dot blinksslowly. Follow the direction of the arrow (up) andincrease the setting. As you get closer to the preset point,the dot blinks faster. If you turn the knob past the preset point, the right dot will first blinkfast and then slow as you turn farther clockwise away from the preset point. When you reachthe preset point, both dots stop blinking and go dark.I NPUT JACKThis 1/4" Input features an impedance buffer so that the tone from a guitar’s or bass’ pickups, orthe signal from other instruments, reaches the SansAmp PSA-1 without degradation. A secondinput jack is located on the rear panel. Note: plugging into the front-panel Input jack overridesand disconnects the rear-panel jack. This lets you set up your SansAmp PSA-1 as a permanentpart of a rack or patch-bay setup, with its usual input source plugged into the rear-panel jack.Then, if you want to plug straight into the SansAmp PSA-1, bypassing other parts of the system,you can use the SansAmp PSA-1’s front Input.5SAVE DOWN UPP U S H 2 XTMPRE - AMP BUZZ PUNCH CRUNCH DRIVE LOW HIGH LEVELINPUTP R O G R A M M A B L EPSA-1M O D E LDotsBlinkDotsBlinkLeft dotblinksLeft dotblinks fasterRight dotblinksBoth dotsgo darkPSA-1M O D E LTMPSA-1M O D E LTM