LEHLE SUNDAY DRIVER SW II
- High-end preamp, buffer and booster
- Discrete Class A input stage
- 130 dB dynamic range thanks to 30 V technology
- Choose between two sound modes
- Neutral, studio quality sound
- Switchable boost up to +18 dB
- Choose between Buffer and True-Bypass operation
- Balanced output can be used as a DI box
The LEHLE SUNDAY DRIVER SW II is a compact high-end
preamp for all types of electric and acoustic instruments - a preamp for
electric and acoustic guitars and basses, not to mention other stringed
instruments (such as violins, cellos and double basses) to realize
their full musical potential. The switchable version expands on the
classic LEHLE SUNDAY DRIVER SW II with a soft-touch foot switch, to activate and deactivate the pedal.
The LEHLE-Switch works with a microcontroller and an intelligent
True-Bypass-Relay-Circuit with active pop suppression circuit, thereby
allowing the LEHLE SUNDAY DRIVER SW II to switch even faster than mechanical switches, noise-free and without wear.
The easy-action mushroom-shaped button characteristic of LEHLE products
is mounted in the cover, so that your foot pressure is transmitted
indirectly, via a spring. Thus the electronics board is not exposed to
mechanical loads, making the LEHLE SUNDAY DRIVER SW II virtually indestructible and guaranteeing years of trouble-free switching.
When ON, its circuit is based on a discrete Class A circuit with JFET
technology and provides two modes of operation, selected by a mode
selector switch with gold-plated contacts: "D" stands for Driver: in
this mode, your 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 the input impedance by five,
bringing out previously inaudible details and, as gain increases, giving
your guitar 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 the maximum +18 dB gain setting, the LEHLE SUNDAY DRIVER SW II
always stays clean and absolutely free of background noise, thanks to
its studio-standard overall dynamic range of 130 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
transformed to 30 V.
When OFF, the LEHLE SUNDAY DRIVER SW II
provides two different modes of operation: in TB (= True Bypass) mode,
the input and output are linked via relay, with zero tonal loss.
True-Bypass mode is the best option if you have a small setup with short
cable routings and for when a treble booster or old-school fuzz pedal
is placed after the LEHLE SUNDAY DRIVER SW II.
If you have long cables or a complex effects board configuration, switch to TS (= True Sound) mode, and the LEHLE SUNDAY DRIVER SW II is active as a buffer, without amplifying the signal in any way.
In this mode, the LEHLE SUNDAY DRIVER SW II operates as a neutral line driver and works with 5 MOhm or 1 MOhm input impedance – depending on the selected S or D mode.
The Bypass mode option enables you to effortlessly and tonefully integrate the LEHLE SUNDAY DRIVER SW II into any setup, no matter how complex.
And not just on Sundays!
We take care of your signal so that you can take care of the music.
Weight | 350 g |
---|---|
Length | 90 mm / 3.5" |
Width | 96 mm / 2.7" |
Overall height | 47 mm / 1.9" |
Supply voltage | 9 - 15 V DC |
Current consumption | 64 - 165 mA |
Frequency range | 20 Hz - 100 kHz (+/- 0.2 dB) |
Total harmonic distortion | 0.008 % (0 dBu, 1 kHz) |
Impedance input | 2 MΩ |
Input impedance D-mode | 1 MΩ |
Input impedance S-mode | 5 MΩ |
Impedance output | 220 Ω |
Max input level | 7.7 V RMS / 20 dBu |
Max output level | 9.8 V RMS / 22 dBu |
Max. gain | 18 dB |
Level noise floor | -110 dBu (20 Hz - 20 kHz) |
The S-Mode: The LEHLE JULIAN does not have an S (= Sunday) Mode whith a higher input impedance.
SW as in Switcher: The LEHLE JULIAN has an On /Off footswitch included as a standard, which comes along with the big LED showing its status. Besides the classical LEHLE SUNDAY DRIVER without switch there is a switchable version, the LEHLE SUNDAY DRIVER SW.
The S-Mode: The LEHLE JULIAN does not have an S (= Sunday) Mode whith a higher input impedance.
SW as in Switcher: The LEHLE JULIAN has an On /Off footswitch included as a standard, which comes along with the big LED showing its status. Besides the classical LEHLE SUNDAY DRIVER without switch there is a switchable version, the LEHLE SUNDAY DRIVER SW.