Search site: Submit Search About Shop Tour Happenings Instruments Fluke Ukulele Mandolin Flea Ukulele Firefly Banjo Cricket Violin Fluke SB Timber Bass Custom Gallery More Products Songbooks & Instructional Materials Strings Cases, Hangers, & Stands Electronics Hardware & Fun Stuff More Instruments Jewelry & Apparel Dealers Libraries Press Video Clips Testimonials Support FAQs Fluke/Flea Ukulele support Cricket Violin support Firefly Banjo support Timber Bass support Instrument Specifications Shipping Info Warranty Returns Contact Nav Menu 2 Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Magic Fluke MENU Open menu Toggle search bar CART ( ) Search... Submit search Home > More Products > Electronics > Preamplifier Open to Source Sensors "Line Driver" other views: This is Open to Source Sensors' Line Driver. Claimed to be one of the best sounding preamplifiers for acoustic pickups.The unit is completely hand wired, and provides a 5 megohm input impedance and up to 35db of clean, usable gain that will drive any 1/4" input with ease.The master volume control mutes the output when it is turned all the way down, and includes a switch to turn off the battery. There is a secondary redundant battery switch in the output jack that also turns the unit off when it is unplugged. Battery life is approximately 900 hours using a standard 9 volt alkaline battery. Compact rugged case with belt clip. Measures: 1 1/4" x 1 1/2" x 3 1/4. base price: $149.00 Open to Source Sensors preamplifier "Line Driver" for acoustic pickups Share your knowledge of this product. Be the first to write a review »