AXE - BPA-1 - BUFFER PRE-AMP
ARTISTS X-PONENT ENGENEERING
"ARTISTS X-PONENT ENGINEERING was a company based out of Menlo Park, California. It seems that the BPA-1 Buffer Pre-Amp was the first of 3 plug-in effects produced by AXE (at least from what the 1982 catalogue would indicate). Here's what said manual/catalogue tells us: -Super boost your signal up to 20 dB -Adds punch and highs lost when using effects devices -Direct instrument plug-in eliminates cord loading -Signal is ALWAYS buffered at all gains -Battery life in excess of 1000 hours AXE's Buffer Pre-Amp eliminates the loss of signal level and punch when using effects devices or driving long cords. But, unlike other preamps, AXE's Buffer section is ALWAYS in the circuit removing the effects of loading. The unit's switchable, variable gain can increase you instrument's output 10X. There are many floor-box style preamplifiers available, all with one glaring design fault: they are on the floor!!! The loading effects caused by the instrument's cord can not be resolved from this location. AXE's Buffer Pre-Amp is where it should be: in the instrument. But the REAL PLUS is that it makes a terrific, AFFORDABLE DIRECT BOX for ANY instrument. It is capable of driving up to 1000 ft. of cable without loss of signal level or highs. Every instrument with a pick-up or transducer -- guitar, bass, or keyboard -- will benefit from the use of AXE's Buffer Pre-Amp SPECIFICATIONS Bandwidth: 20Hz to 20 kHz, plus or minus 0.5dB (any gain) Maximum Output: +7 dBV THD+N: Less than 0.08% (any gain) Gain: 0 to 20 dB (variable) Equivalent Input Noise: -106 dBm (20kHz BW) Maximum Input Signal: 2.3 V (+9dBm) Input Impedance: 5 ohms"
cred: reverb.com/Fuzz Wizzard's Fabulous Gear