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Sunday Driver Buffered Line Driver

Lehle

  • $ 19999


The Lehle Sunday Driver is a high end preamp with a convenient compact format. It features JFET-based circuitry and provides two modes of operation, with selection via a mode selector switch with gold-plated contacts: "D" stands for Driver; in this mode, the guitar signal is amplified, with absolutely no modification, at the input impedance of a guitar amp, efficiently eliminating losses on the route through leads and effects; the signal remains strong and clear, retaining its full dynamics. The second setting "S" - as in Sunday - multiplies input impedance by four, bringing out previously inaudible details and, as gain increases, imparting to the guitar sound a characteristic and unmistakable warmth that has given this preamp its name - the result is a sound as mellow as a sunny Sunday afternoon! Even at a 15dB gain setting, the Lehle Sunday Driver always stays clean and absolutely free of background noise, thanks to its studio-standard signal-to-noise ratio of over -100 dB. To exploit the dynamics of tube amplifiers to the full, the input voltage is also rectified from the power supply socket, then filtered, stabilized and doubled to 18V. With its broad output range of 20 to 100,000 Hz, the Lehle Sunday Driver, powered by a standard 9V (PP3) battery, can be used anywhere, whether as a cable driver for stadium and other large stages, in complex effects set-ups, or as a recording preamp - and not just Sundays!

Gold-plated Relays & Switches
The signal from the pickups of an electric guitar or bass is so weak that poor quality cable, cold joints and cheap contact materials ruin your sound. Switch contacts need to be make of special materials to prevent loss-free switching of these low-level signals. All Lehle switchers feature special relays and slide switches with gold-plated contacts for totally reliable, absolute zero-loss switching.

Adjustable Gain
Adjustment of vilume or distortion using a gain controller is a vital feature in many situations. The gain controllers on the corresponding Lehle products feature black anodized aluminum knobs set back into the housing so they can be easily fingertip rotated but maintain their setting during performance and transportaion.

Voltage Internally Doubled to 18V
To exploit the dynamics of tube amplifiers to the full, the input voltage of Lehle products bearing the 18V symbol is rectified from the power supply socket, then filtered, stabalized, and doubled to 18 volts.

Battery Operation Possible
Lehle products displaying the battery symbol can be operated using either 9V PP3 battery or an external power supply. If the voltage of the external power supply drops below 9 volts, a gold-plated relay automatically switched to battery operation.

FAQs:
Q: What is the effect of an impedance converter?
A: The sound will be freshened up and signal loss through long cable runs will be compensated.

Q: What is the benefit of a buffer/impedance converter before my effects chain?
I heard about the SD, but I am uncertain how this works and whether I need this for my pedal board.

A: A high impedance / HiZ signal can be weakened by an increasing number of fx-pedals, even true bypass effects. The difference can be felt by connecting your instrument with a short cable directly to your amplifier and focus on the details in sound and dynamics.

Q: How can I compensate the signal loss on my effects board?
A: By using an impedance converter, which provides a high impedance input socket for the instrument signal and a low impedance output signal that is more resistent against loss.

Q: My doublebass pickup delivers a weak signal, can I increase the level without any coloration or distortion?
A: The Sunday Driver can increase the signal gain up to 15dB without any loss or alteration of your original signal.

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