Official Website

Demo by S Perras

Demo by Alex T

Big Muff Pi V7 (Green Russian)

The EHX Lester K uses stereo outputs to provide a lush, realistic sound with either stereo or mono inputs. Tube-style overdrive is variable and the speaker balance can be fine-tuned. Switch between adjustable Fast and Slow modes to achieve that iconic sound when the big cabinet ramps up to speed and down.

Lush rotary speaker emulation
Stereo/mono in/out
Tube emulated overdrive
Adjustable Fast and Slow modes
Classic rotary speaker speed up and down
High quality buffered bypass
Power adapter included

Official Product Video

Product Page 

Review by Paul White, soundonsound.com

Review by Bassel Hallak, bonedo.de

Manual

Lester K

The Electro-Harmonix Nano Small Stone's full-bodied, three-dimensional phasing adds a special swirl to every musical style. Blues boys and babes dig its rapidly rotating speaker effect while country players use it to add seasoning to their chicken' pickin'. Metalheads and industrialists dig the Nano Small Stone's jet plane woosh. No matter what your musical pleasure is, the Electro-Harmonix Nano Small Stone is guaranteed to increase it!

Review by musicradar

Demo by Doktor D.M.X.

Demo by PMTVUK

Nano Small Stone 

British invasion! Taking its roots from legendary British guitar amps, the English Muff’n recreates their majesty and classic tone with spot-on accuracy. Rather than approximating these amps like “emulator” products, the English Muff’n employs vacuum tubes to produce the richness and natural saturation of Brit-valve sounds. A bloody masterpiece!

Product Page

Demo by Julian Doe

Review by guitartest.de

Demo by paprica music

English Muff'n

With the EHX Operation Overlord Allied Overdrive, whether you play guitar, bass, keyboards or pretty much any electronic instrument — dialing in great drive sounds is fast and foolproof.

Active 3-band EQ controls, footswitchable BOOST mode, and a dry blend provide versatility for different tones and instruments. The OVERLORD also features two independent distortion channels for use with stereo setups.

Review by Matt Blackett, guitarplayer.com

Demo by Reverb