Order code: 1030
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.
Switching precise, swift and quiet
Swift and precise switching as between different instruments, effects loops or amps is essential in many live setups. To ensure this almost silently and wear-free, we have designed a finely tuned control system with a self developed spring located between the foot switch, our famous mushroom head, and the actual sensing device on the circuit board. A processor based on the ARM Cortex-M technology controls the switching operation very fast and precisely. While a conventional switch can handle a maximum of 20,000 switching operations, the interplay of the components used here enables a service life of 2 million switching operations. A hundred times more!
LEHLE Footswitch
The easy-action mushroom-shaped buttons characteristic of LEHLE products are mounted in the cover, so that your foot pressure is transmitted indirectly only, via a spring. Thus the electronics board is not exposed to mechanical loads, making your LEHLE virtually indestructible and guaranteeing years of trouble-free switching.
Voltage Internally Boosted to 30V
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 boosted to 30V.
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.
Many effects units feature stereo outputs. Or: instruments frequently have two pickup systems, e.g. a combination of conventional magnetic and Piezo types, to emulate an acoustic sound. Lehle accessories are ideal for trouble-free routing of such dual-channel stereo signals. All stereo-capable Lehle products are, of course, also suitable for mono operation.
Integrate an effects pedal with a mono input and stereo output into the signal path.
  • True-Bypass parallel effects looper and stereo mixer
  • Discrete Class A input stages
  • 122 dB dynamic range thanks to 30 V technology
  • Latching, Momentary or Mixed Mode operation
  • Mono and Stereo functionality
  • Active pop suppression circuit

The LEHLE PARALLEL SW II is a compact and versatile line mixer designed to meet the highest tonal standards. The LEHLE PARALLEL SW II mixes the signals from your effects units into your original signal, either before an amp or inserted into its effects loop. You can adjust send and return levels separately, and finely balance the effects signal to the original signal using the mix controller. All connections are realised in stereo, so your stereo effects pedals can be placed into the signal path of the LEHLE PARALLEL SW II.
Thanks to the discrete Class A input stages with JFET technology, the LEHLE PARALLEL SW II's inputs can handle high-impedance signals - from electric guitars, basses or acoustic instruments - as well as low-impedance signals - from keyboards, active electric guitars and basses - with a broad output range extending from 20 to 100,000 Hz.
With the new LEHLE PARALLEL SW II it is now possible to combine mono and stereo signals. You can easily integrate effects pedals with mono input and stereo output into the signal path of the LEHLE PARALLEL SW II without limitations.
The great dynamic range of the LEHLE PARALLEL SW II makes it possible to blend rack-mount studio effects units with low-impedance line level into the guitar signal path, or insert effects pedals with their level-adjusted into an amp's effects loop.
To exploit the dynamics of tube amplifiers to the full, the input voltage is rectified from the power supply socket, then filtered, stabilized and transformed to 30 V.
The LEHLE-Switch works with a microcontroller and an intelligent True-Bypass-Relay-Circuit with active pop suppression circuit, thereby allowing the LEHLE PARALLEL 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 PARALLEL SW II virtually indestructible and guaranteeing years of trouble-free switching.
The LEHLE PARALLEL SW II has three operating modes, making the switch work as either a latching or momentary switch, allowing for short or rhythmic stutter-effects. The third mode combines a mixture of operating mode one and two: a short hit is latching, a long hit is momentary.
Placing no limitations on your creativity!
We take care of your signal so that you can take care of the music.

Q: Can I use the (serial) amp's FX-loop to mix effects to my guitar signal? I dont want my signal to go 100% thru stompboxes or digital processors.
A: With the LEHLE PARALLEL L and PARALLEL M only a part of the guitar signal can be blended with effects, the pure signal will not be routed completely thru the FX unit.
Q: How can I mix the two pickups of my instrument? My bass has two seperate outputs for piezo and magnetic pickup.
A: The LEHLE PARALLEL SW II can blend 2 pickup signals without any signal loss. One signal goes to the units input, the other pickup is plugged into the PARALLEL's Return. Now the level and mix controls can be used to adjust your favourite sound.
Q: Does the buffer inside the LEHLE PARALLEL SW II has the same function as the other LEHLE buffers?
A: Yes – although it might miss the S-MODE of the LEHLE SUNDAY DRIVER II, the high impedance input of 2 MOhm works great for most signals and the wider boost range from -15dB up to +15dB is a very flexible feature.

Serial higher than "21.59321":

Serial lower than "21.59321":

Weight 480 g
Length 100 mm / 3.9"
Width 122 mm / 4.8"
Overall height 47 mm / 1.9"
Supply voltage 9 - 15 V DC
Current consumption 200 mA
Frequency range 20 Hz - 100 kHz (+/- 0.2 dB)
Total harmonic distortion 0.003 % (0 dBu, 1 kHz)
Impedance input 2 MΩ
Impedance send 220 Ω
Impedance return 2 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 +/- 15 dB
Level noise floor -100 dBu (20 Hz - 20 kHz)
Number of FX Loops 1
Gitarre & Bass 2020.05
Dirk Groll
Exemplary and sophisticated!
The sophisticated and well designed signal routing options allow for a range of secondary applications beyond the main functions – the options for signal routings are especially clever. The exterior styling goes hand in hand with perfect workmanship and quality. In our tests all four LEHLE devices have been exemplary, living up to their reputation and delivering on all promises of background noise and performance.
Bonedo 2019.12
Thomas Dill
Sophisticated switching circuits.
The pedals are made with high-quality components and sophisticated switching circuits, which certainly contributes to a stable guitar signal even in a long signal chain.
Bass Quarterly 2019.11
Alexander Kern
Design, workmanship and components.
The quality of the design, workmanship and components at LEHLE goes without saying. It is reassuring to realize, once again, that when it comes to great sound, there is almost always room for improvement.

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I have the following questions on the product LEHLE PARALLEL SW II (Order code: 1030)
Joachim Joki Schaller
Tel +49 2855 850070