User Manual for Electro-Harmonix LESTER K Stereo Rotary Speaker Simulator Pedal

Quick guide from the manual

The LESTER K is a stereo rotary speaker cabinet simulator. It features adjustable FAST and SLOW modes, tube-emulated overdrive, and a balance control to fine-tune the mix between the low-frequency rotor and high-frequency horn. The pedal supports both mono and stereo configurations.

Controls

• FAST Knob: Adjusts the rotation speed when in FAST mode. Center position replicates a real rotary speaker cabinet's fast speed.
• SLOW Knob: Adjusts the rotation speed when in SLOW mode. Center position replicates a real rotary speaker cabinet's slow speed.
• BALANCE Knob: Controls the mix between the low-frequency rotor and high-frequency horn. Clockwise increases horn volume (brighter sound); counter-clockwise decreases it (darker sound).
• DRIVE Knob: Controls the amount of tube-emulated overdrive. Fully counter-clockwise bypasses the overdrive effect.
• VOL Knob: Controls the overall output volume.
• BYPASS Footswitch: Selects between buffered bypass mode and effect mode.
• SPEED/BRAKE Footswitch: Tapping switches between FAST and SLOW modes. Press and hold for at least half a second to enter BRAKE mode.
• LED: Indicates effect mode is active and pulses at the speed of the low-frequency rotor oscillation.

Connections

• Inputs: Labeled MONO/L and R. For mono setups, use the MONO/L input. Input impedance is 2MΩ.
• Outputs: Labeled MONO/L and R. For mono effects, use the MONO/L output. For stereo output, connect both jacks to separate amplifiers or mixing board inputs. Output impedance is 680Ω.
• Power: Requires 9V DC, 135mA, center negative plug. Use the supplied EHX9.6DC 200mA AC adapter.

Operation Modes

• FAST Mode: Oscillates at the fast speed of a rotary speaker unit for a tremolo-like effect.
• SLOW Mode: Oscillates at the slow speed of a rotary speaker unit for a chorale-type effect.
• BRAKE Mode: To enter, press and hold the SPEED/BRAKE footswitch for half a second. The unit will gradually decelerate to a stop. Tap the footswitch again to return to the previous mode.

Warranty and Service

Electro-Harmonix provides a one-year warranty from the date of purchase for defects in materials or workmanship. Registration is recommended at http://www.ehx.com/product-registration. For service, contact EHX Customer Service at [email protected] or +1-718-937-8300. USA and Canadian customers must obtain a Return Authorization Number (RA#) before returning the unit.