Lehle Parallel SW Ii

A LEHLE Tool Designed for Modern Rigs: From Pedalboard to Amp Loop

The LEHLE PARALLEL SW II aligns with the brand's philosophy: offering routing and switching solutions designed to preserve signal integrity, even in the most demanding setups. Here, the goal is clear: to integrate one or more effects processors within an original signal without losing dynamics, definition, or playing feel. Whether you want to keep the attack and presence of your direct sound while adding delay, reverb, or more complex treatments, this compact format is designed to become a reliable "center of gravity" at the heart of your signal chain.

Who Is the LEHLE PARALLEL SW II For and How to Use It?

This pedal is aimed at guitarists and bassists (and more broadly musicians using pickups or line sources) who want clean and musical control over the dry/wet mix. It's ideal if you play in studio and want to precisely dose an effect without re-recording, or live to maintain a consistent balance regardless of the backline. Styles that particularly benefit from a parallel loop range from blues and rock (to thicken without muddying the attack) to ambient (to layer textures while keeping playing clarity), as well as modern sounds where direct signal clarity is essential.

The PARALLEL SW II works equally well before the amp (as a compact mixer between your instrument and effects) or in the amp's effects loop. It allows you to add and blend the effects signal with the original signal, with independently adjustable send and return levels: practical for adapting both a pedal effect and a rack-format processor to your reference level, without suffering losses or imbalances.

Controls, Modes, and Design: Your Parallel Loop to the Millimeter

The core of the experience is the blend management. The Mix knob lets you adjust the ratio between your original signal and the processed signal to find the ideal balance point: a hint of space without masking the attack, wide but controlled modulation, or a present delay that doesn't "swallow" the playing's grain. Going further, the send and return levels are adjustable independently: you can optimize gain staging, avoid overloading an effect's input, or conversely push a processor that sounds better with a higher input level.

All connections are made in stereo, facilitating the integration of stereo processors into a coherent signal flow. Another particularly practical point: the LEHLE PARALLEL SW II allows you to combine mono and stereo signals. Concretely, you can easily integrate an effect with a mono input and stereo output, then blend it with the original signal in a clean configuration designed for both stage and studio.

Regarding switching, LEHLE relies on modern logic: a microcontroller controls a true-bypass via relays with an active switching noise suppression system. The result: fast switching, no mechanical wear, and above all no unwanted "pop" when activating or deactivating the loop. The brand's signature soft-touch "mushroom" footswitch is mounted to limit mechanical stress on the electronics: foot pressure is transmitted indirectly via a spring, enhancing robustness for intensive use.

Finally, the PARALLEL SW II offers three operating modes to adapt the footswitch behavior to your playing: latching (sustained switching), momentary (perfect for stutter effects, rhythmic interventions, or punctuations), and a mixed mode where a short press switches latching while a long press acts momentarily. This transforms a simple parallel loop into a true creative tool.

Sound

The LEHLE PARALLEL SW II is designed to remain transparent and respect your instrument's dynamics. Thanks to its discrete class A JFET input stages, it adapts equally well to high-impedance instruments (passive guitars or basses) and low-impedance sources (keyboards, active instruments), while maintaining a very wide bandwidth (20 to 100,000 Hz). In practice, you keep a solid direct sound with clear attack and add the effect "around" the signal without any veil effect.

The advertised dynamic range of 122 dB and the internal 30 V architecture aim to provide ample headroom : useful if you want to integrate a studio processor, handle line levels, or simply avoid any unwanted compression when playing loudly. The sought-after result is a clean, stable, and musical dry/wet mix that highlights your touch rather than smoothing it out.

Technical specifications

Effects	Mixer, Switch, Effects	Type	sector
Technology	Analog	Use	electric guitar
Format	Pedal	Color	Blue

Compatibility	high-impedance instruments (guitar, bass, acoustic with pickups) and low-impedance sources (keyboard, active instruments)	3 switching modes	latching, momentary, mixed (short/long press)
Bandwidth	20 to 100,000 Hz	Required power supply	9 V DC
Dynamic range	122 dB	Consumption	100 mA
High-voltage internal architecture	30 V technology (rectified, filtered, stabilized, then transformed input voltage)