The new A/DA APP-1 Pedal Preamp is designed by David Tarnowski and is a no-compromise 2 channel low noise all analog preamp, and the first product to use his new patent-pending "D-Torsion" Core Technology to achieve greater dynamics, string sensitivity and a wider range of guitar tones. You can go from crystal clear clean to over-the-top grind without touching a single knob on your guitar, pedals or amplifier. It has more bloom than the most nimble Class-A tube combo amp and can ring-out single-coil harmonics to frightening levels – all done with the subtlety of how hard you hit the strings.

By switching the FX LOOP in and out, the user can adjust any gain loss from the effects in he signal chain with the FX LOOP RTN LEVEL pot. Also when the FX RETURN jack is unplugged, the signal path is normalized, meaning the FX LOOP RTN LEVEL pot is out of the path and the path gain is equal to 1.

The BOOST circuit is post MASTER, so the level of the MASTER is always boosted proportionally up to +16dB of additional gain.

MPN: APP1
UPC: 008474924679

• 2-Channel Analog Preamp With:
  
• D-TORSION CORE Dynamics and Sensitivity Control
  
• All Analog Signal Path
  
• Independent Passive Tone Stacks
  
• Independent Pre-Distortion VOICING for CLEAN, OD & DISTORTION
  
• Adjustable Level Dual-Buffered EFFECTS LOOP
  
• Foot Switched BOOST up to +16dB
  
• TRUE BYPASS
  
• TUNER OUT
  
• All-Steel Industrial Grade Enclosure
  
• Hand Made in California
  
  The modes of operation of the APP-1 are:
  
• BOOST only
  
• BOOST with the dual buffered FX LOOP
  
• PREAMP + BOOST
  
• PREAMP + BOOST with the dual buffered FX LOOP
  
• TUNER MUTE - this silences everything except the signal to your tuner, which is plugged into the back panel of the APP-1
  
• TRUE BYPASS (Hardwire bypass) This also disconnects the TUNER so it won't load your guitar signal. The signal to the TUNER jack is only present in the IN mode and TUNER MUTE mode, and this signal is buffered.