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SunnAudio's craft stems from the extreme high-end audio world and the studio.  Our simple and elegant design, the Line Driver, would be perfectly at home in an audiophile's studio preamp, or in your instrument.  SunnAudio designs include discrete FETs - the best sounding expensive film caps, along with extensive RF shielding.  

Our models have some of the longest battery life available.  We test our products for battery longevity and the effects of an unshielded preamp. The signal remains constant even with a weak battery.

Average battery life is 700 to 1500 hours of use; we think you will likely change the strings more often than the battery.

We work out the technical details so you can focus on what's important: your music.