Lehle Julian
Order code 1022
1-preamp-with-semi-parametric-mids.png 2-preamp-with-semi-parametric-mids-FX.png 3-preamp-with-semi-parametric-mids-DAW.png 4-preamp-with-semi-parametric-mids-mixer.png
01-Gold-RS.jpg Gold-plated Relays & Switches
The signal from the pickups of an electric guitar or bass is so weak that poor-quality cables, cold joints and cheap contact materials ruin your sound. Switch contacts need to be made of special materials to permit loss-free switching of these low-level signals. All Lehle switchers feature special relays and slide switches with gold-plated contacts for totally reliable, absolutely zero-loss switching.
02-parametric-mids.jpg Semi-parametric mids and treble
Boosting guitar sounds, the mid range is a crucial factor. To enable these particularly diverse timbres, the Lehle Julian has semi-parametric mids, so the base frequency for the mid range control can be chosen. For treble, the T-pot controls a classic shelving filter.
05-Gain.jpg Adjustable Gain
Adjustment of volume or distortion using a gain controller is a vital feature in many situations. The gain controllers on the corresponding Lehle products feature black anodized aluminium knobs set back into the housing so that they can be easily fingertip rotated but keep their settings during performances and transportation.
07-18V.jpg Voltage Internally Doubled to 18V
To exploit the dynamics of tube amplifiers to the full, the input voltage of Lehle products bearing this symbol is rectified from the power supply socket, then filtered, stabilized and doubled to 18V.
08-Battery.jpg Battery Operation Possible
These products can be operated either using a 9V PP3 battery or an external power supply. If voltage of the external power supply drops below 9 Volt a gold-plated relay automatically switches to battery operation.
The Lehle Julian is an advanced Lehle Sunday Driver SW and offers additional controls like the parametric mids and treble. It has developed into a versatile booster - especially with the vintage users in mind - to tickle the input of a tube amp. The parametric midboost allows individual sound shaping as well as recreating the characteristics of familiar classics like the established Dallas Rangemaster or the Hornby Skewes Treble Booster, supplying the ear with familiar sounds. Since these boosters had a very low input impedance we have equipped the Lehle Julian with a switch that reduces the impedance from 1 MOhm to 10 kOhm for authentic rendition of their characteristics. The treble control completes the sonic performance. And the best: all settings from „muffled“ to „edgy“ are always pleasing, there is no dull or piercing sound. The overdrive grade of the connected amp can be fine-tuned with the gain pot by +/- 15 dB ranging from super clean to distorted. The Lehle Julian always delivers a clean output thanks to its JFET input stage. Its personal dynamic derives from the fact that the incoming current is rectified, stabilized and doubled to 18V right after the powersocket.
In OFF status, the Lehle Julian provides two different modes of operation - in TB (= True Bypass) mode, the input and output are linked with zero losses to one another via a switch with gold-plated contacts. True Bypass mode is the best option for a small set-up with short cable routings and when a classical fuzz pedal is looped in after the Lehle Julian. 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. Running the Lehle Julian in TS mode (= True Sound) it becomes active as a buffer, but without amplifying or coloring the signal. The Bypass mode option enables the Lehle Julian to integrate ideally into any set-up, whether as a battery-operated stand-alone unit, or in an existing pedal board.
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: 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: What’s the difference between the Lehle Julian and the Lehle Sunday Driver?
A: The EQ section makes the difference! The Lehle Julian offers additional controls like the parametric mids and treble which allow individual sound shaping.
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.