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Lehle | RMI Basswitch | Classic Boost

by Lehle
Sold out
Original price $459.00 - Original price $459.00
Original price $459.00
$459.00 - $459.00
Current price $459.00

Basswitch Classic Boost

The Basswitch Classic Boost super compact high end preamp combines the renowned preamp of the Basswitch IQ DI with a 3-band EQ gently voiced for passive P, JJ and PJ type basses. It can be used as a booster, be teamed up with the Basswitch IQ DI or work as a preamp in front of an power amp, an active monitor or bass cab. Lehle True Sound Technology, German manufacturing and best brand components provide maximum reliability and optimal treatment of the electrical signal. Uncompromising in sound and build quality the Basswitch Classic Boost will give your bass a new sonic shine and prepare you for any situation, be it in live performance or recording sessions.


High End Preamp

Do not let the size fool you, this compact pedal offers you a high end bass preamp with a discrete JFET-input stage, a studio standard dynamic range of 100 dB and 15 dB of gain that allow you to use the Basswitch Classic Boost as a stand-alone booster, as a second channel of the Basswitch IQ DI or as a compact stand-alone preamp in front of an power amp, an active monitor or bass cab.


Powerful EQ section

The 3-band EQ of the Basswitch Classic Boost has the feel of a mixing console channel to it and allows a strong bending of the basic signal. It consigns a wonderfully tidy soundscape and your instrument will receive a new sonic shine enhancing the characteristic sound of your P, PJ or JJ bass. Additionally the treble control combines a passive high frequencies reduction with an active high frequency boost.

Lehle footswitch on board

The Basswitch Classic Boost is equipped with a high quality Lehle footswitch. An actuator button activates a pushbutton via a metal lever and the load exerted by the foot is absorbed by the actuator button and the housing, preserving the circuit board from mechanical stress. Inside the Basswitch Classic Boost the impulse from the pushbutton activates special gold plated relays via discrete logic circuitry guaranteeing signal loss free switching of very sensitive signals. The switching technology in the Basswitch Classic Boost is designed to operate for up to two million switching cycles!


Lehle True Sound Technology inside

Lehle True Sound Technology combines a series of electrical design measures to insure an optimal treatment of the electrical signal of the instrument. The supplied voltage is rectified, filtered, stabilized and brought to 18V. This allows for sufficient headroom even when confronted with strong pickup power peaks. The Lehle buffers effortlessly handle signals reaching the megahertz range. At the output, the frequency bandwidth is limited to the audible frequency range to prevent HF interference. The Lehle True Sound Technology is a key element to the outstanding sonic performance of our products.

Technical specifications

Size & weight

  • Weight: 390 gr
  • Lenght: 14,9 cm
  • Width: 6,0 cm
  • Overall height: 4,4 cm


  • Voltage range: 9-15V AC/DC
  • Power consumption: 60 mA


  • Frequency range: 30Hz – 150KHz (+1/-3 dB)
  • Distortion: 0,002 %
  • Input impedance: 2 MΩ
  • Output impedance: 150 Ω
  • Signal-to-noise ratio: -96 db @ 1kHz, 0dBu


  • Max level: 15 dBu (with 12 Volt power supply)
  • Max gain: +/- 15 db
  • Bass: +15/-11 dB @ 45 Hz (peaking)
  • Mid: +/-12 dB @ 640 Hz (peaking)
  • Treble: +10 dB @ 5Khz/-12 dB @ 10 KHz (shelving)