Via MIDI, you can load and off-load presets, map program locations, and select MIDI

channels (including Omni Mode). Remote program changes can also be made via MIDI

(including Tech 21’s own equally player-friendly MIDI Mouse or MIDI Moose footcontrollers).

Other features include dual 1/4” and XLR outputs for stereo processing, either of which can

be set at line or instrument level, and used simultaneously. The non-glare, 3-digit LED display

is readable from any angle, in daylight or darkness.Considered a staple in professional recording

studios, the SansAmp PSA has been used on major releases and worldwide tours for multiple

applications and instruments, including horns, vocals and drums. Players, engineers and producers

alike find the SansAmp PSA very simple to operate. To program, you just tweak the knobs and save.

Parameters are adjusted in real time with traditional analog potentiometers. The digital memory stores

the positions of the pots. With 256 incremental steps, each rotary control increases and decreases in

a smooth linear fashion.
The exceptionally versatile SansAmp PSA-1.1 offers 49 factory presets of the most recognized vintage and

modern tube amp sounds for guitar and bass, and 77 user-definable locations. A Universal Output Section

enables the signal to be compatible with full range systems as well as guitar/bass speaker cabinets. With the

SansAmp PSA-1.1, you can record direct to tape, as well as warm up existing tracks in mixdowns. For live

applications, it can be used as a pre-amp, “monster direct box” to P.A. system, and as an outboard processor. 
SPECIFICATIONS
Model Number : PSA-1.1
Input Impedance-Input 1 : 1MegOhm
Input Impedance-Input 2 : 4.7MegOhm
Input Level-Input 1: -10dB
Input Level-Input 2 : Switchable to -10dB or 0dB range
Output Impedance-1/4”: 1K Ohm min
Output Impedance-XLRs : 600 Ohm min
Output Level-1/4” : Switchable to -10dB or 0dB range
Output Level-XLR  : Switchable to -10dB or 0dB range
Maximum Output Level : +10dB or better
XLR Pin Configuration : Pin 1: Ground / Pin 2: In phase / Pin 3: Reverse phase
Effects Loop Send : 1K Ohm min, -10dB, Mono
Effects Loop Return : 100K Ohm min, -10dB, Stereo/Mono
Low Frequency Response : 10Hz or better*
High Frequency Response : Harmonic content, 20kHz or better*
Maximum Power Consumption : 5 Watts
AC Input Power (factory set) : 100V, 117V, 230V, 240V 
Cycles : 50/60 Hz
NOTE: Each unit is constructed for specific voltages. AC power cannot be switched.
Enclosure : Aluminum and steel, fully shielded
Dimensions : 19.0”w x 1.75”h x 5”d / Overall depth: 6”
Weight  : 5 lbs.