E.W.S. står for Engineering Work Store og er firma tilknyttet Xotic under Prosound Communication paraplyen. EWS produserer originale pedaler, tilbyr modifikasjoner til eksisterende pedaler og en del andre kjekt å ha ting for oss gitarister.

EWS Trilogic2:

Unlike many pre-amp units on the market today, which tend to have that peculiar "Active" sound, Tri-logic Bass Pre-amp features a greatly expanded, wide dynamic range, for a natural warm sound, sought after by many of today's players. Also, the unique characteristics of various bass has been restored, and has been realized with a very low-noise output.
Designed and tested with feedback from professional musicians.
You can make a sound to match any musical style. It works great with natural sound when used with acoustic bass with pickup.



Specification:
* Power Consumption: 18VDC/20mA
* Battery Type: 9VDC (006P) x 2
* AC Adapter (Optional): 18VDC, Negative Tips (Center), Regulated recommended.....Dunlop ECB04 Power Supply
* Input Impedance: 500k ohm & 50k ohm switchable
* Output Impedance: 10k ohm
*Frequency; high: 10kHz, mid: 3kHz (high-mid), 400Hz(low-mid), low: 20Hz