Sunday Driver SW Buffered Line Driver / Preamp with True Bypass Switch

 

• A compact-format high-end preamp for all types of electrical and acoustic instruments.

• Enables electric guitars and basses, acoustic guitars, and also other stringed instruments (such as violins, cellos and double basses).

• The switchable version expands the classical Lehle Sunday Driver's features by an On/Off footswitch.

• Studio-standard signal-to-noise ratio of better than -100 dB, free of background noise.

• Input voltage is rectified from the power supply socket, then filtered, stabilized and doubled to 18V.

• Bypass Mode option enables the Lehle Sunday Driver SW to integrate ideally into any set-up, whether as a battery-operated stand-alone unit, or in an existing pedal board.

 

JFET technology, provides two operating modes.

 

D (= Driver) Mode

• The input signal is amplified with zero modification, to eliminate the signal losses that long cable routings and/or effects chains can cause. 

• The signal remains powerful and clear, and retains its dynamics.

 

S (= Sunday) Mode

• Multiplies input impedance by four, bringing out previously inaudible details and, as gain increases, imparting to the guitar a characteristic and unmistakable warmth. 

• There is no distortion at any stage, and the signal always stays clean, even at a maximum gain setting of 15 dB.

 

In OFF status, the Lehle Sunday Driver SW provides two different modes of operation

 

TB (= True Bypass) Mode

• The input and output are linked with zero losses to one another via a switch with gold-plated contacts. 

• The best option for a small set-up with short cable routings and for when a treble-booster or a classical fuzz pedal is looped in after the Lehle Sunday Driver SW.

• The line-driver function, located at the start of the train or in an effect chain, is the better solution for long cables and for complex effect board configurations.

 

TS (= True Sound) Mode

• Active as a buffer, without amplifying or modifying the signal in any way.

• Operates as a totally neutral line-driver equivalent to Mode D with the gain pot turned all the way to the left.