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Description
rotary effect pedal Electro Harmonix Lester K Stereo Rotary Speaker PedalElectro Harmonix Lester K Stereo Rotary Speaker Pedal Guitarists and keyboardists know that nothing beats a Leslie rotary speaker for smooth, swirling stereo chorus. The Electro Harmonix Lester K pedal re creates the classic Leslie sound in pedal form with two adjustable speeds controlled by a footswitch to move between fast and slow textures without tying up your hands. The Lester K's drive control adds B 3 guts and grit to your sound, while a
Electro-Harmonix Lester-K Stereo Rotary Speaker PedalGuitarists and keyboardists know that nothing beats a Leslie rotary speaker for smooth, swirling stereo chorus. The Electro-Harmonix Lester-K pedal re-creates the classic Leslie sound in pedal form with two adjustable speeds controlled by a footswitch to move between fast and slow textures without tying up your hands. The Lester-K's drive control adds B-3 guts and grit to your sound, while a balance control, which simulates the balance between a Leslie's horn and bass speaker, helps smooth out your tone. True stereo ins/outs and a stage-ready metal chassis make the Lester-K a great option for keyboardists wanting to add stereo textures to live work and ear-to-ear effects to recordings.
From classic rock organ tones to dramatic guitar textures, the Electro-Harmonix Lester-K delivers in spades. EHX's faithful homage to the Leslie sound adds an instantly recognizable vibe to chords and leads, while its variable speeds, drive circuit, and balance control offer new tonal options for any style of music.
Vary speeds via footswitch to keep things interesting
Variable speed is part of what separates the EHX Lester-K from other rotary speaker emulators. Players can set slow and fast speeds and toggle between them with a single footswitch for the dramatic, roaming textures Leslies are known for. An acceleration control lets you adjust the ramp-up/ramp-down time between speeds for seamless transitions.
Momentarily pause speaker effects without changing tones
The Lester-K has a traditional bypass switch for when you want to kill it completely. It also features a brake switch for when you want to keep your drive and tone settings without the speaker effects - great for guitar solos and subtle keyboard pads. This is just another way the Lester-K lets you add real humanized movement to your tone to keep your audience interested.
Features:
• The Leslie speaker sound in pedal form
• A rock 'n' roll staple
• Adds smooth, swirling chorus to chords and leads
• 2 speeds with fine adjustment and acceleration control
• Vary speeds and pause speaker effects via footswitch
• Drive control adds grit to organ and guitar tones
• Balance (tone) knob delivers cutting rhythms to smooth leads
• Stereo inputs and outputs for ear-to-ear effects
• Great for the stage and studio
• Buffered bypass prevents signal loss through long cable runs
• Includes power supply
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Exchange/Return Notes
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4.3 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 4
Sturdy, works well
Size: Width 16.5", Fully Adjustable Desk Mount, Style: Single
Been using this for awhile. I move it around a lot and it keeps up. My only complaint is it occasionally loosens so I have to find the tool and retighten it.
Mine also came with a piece broken, and I never got any sort of replacement part. That's a bit on me, but it's rather annoying when one of the laptop clips continuously falls off.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Absolutely fabulous products!
Size: Width 14", Adjustable Desk Mount, Style: Dual
The only downfall of this product is that there is no instant up/down adjustment on the arms. Otherwise this mount is outstanding. It is easy to put together, the only items you'll want that aren't in the box are a screwdriver and a wrench. It went up in just a couple of minutes, and it's sturdy and very well made. I like that I can put it flush to a wall because it does not need any room behind it. This is beyond amazing for the inexpensive cost. I would buy it again in a heartbeat. Also adding to the awesomeness is an array of additional arms and accessories for this you can find from Wali to make your setup perfect for you, all at great prices. I've got my office setup complete with three arms and two laptop trays and the whole thing cost less than a single arm I purchased from Amazon Basics. Handy thought regarding the laptop trays is that they're a nice size, and with the catch at the bottom, I've found I like to use it as a literature tray. I drop a book on there and it holds it at a nice angle to read from when transferring or referencing data. The trays do bounce some when typing, but much less than any other type of arm/tray system I've ever used. Highly recommended!
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Reviewed in the United States on January 13, 2019
★★★★★ 5
Not as complicated to put together as it seems, and quite sturdy
Size: Width 14", Adjustable Desk Mount, Style: Triple
When I first unpacked this stand, I was initially overwhelmed by the number of parts that were included in the package. I didn’t realize there were extra parts included to offer you two choices for how to mount the stand to your workstation. Once I got that sorted out, I relaxed a bit more and was able to assemble the unit single-handedly and mount two 22” monitors and a laptop to give myself more room on my desk. It was a bit challenging to move the arms to just the right angles and height, but I did get it after a few tries.
I used the re-positionable clamp instead of the desk- through grommet mount. It feels very sturdy, and I feel as long as I periodically check the tension and tightness of the bolts, it will hold up everything just fine.
I am not thrilled with the cable management clamps that attach to the round center pole, so I’ll probably end up looking for different clamps or even just velcro fasteners to loop around the post. The clamps that snap onto the arms themselves are fine and hold the Displayport and power cords in place well.
I thought about dinging this unit a star for the weird center post clamps and also because the black coating on part of the round post is flaking off, but really, I can work with those things/cover up the cosmetic issues.
I was super-impressed by the way the hardware was included in labeled, individual plastic compartments. The instructions were pretty good, too, although I would have liked the print to be a little larger - once you hit your forties, you reach for readers or have to get up close and squint to see small print…
Overall, I’m pleased with this unit.
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Reviewed in the United States on January 12, 2025
★★★★★ 5
Game changer
Size: Width 14", Adjustable Desk Mount, Style: Dual, Size: Width 14", Adjustable Desk Mount, Style: Dual
**update 2026**
Okay I've just upgraded this mount so let me update my review. I am keeping 5 stars because for an entry level budget mount it did its job.
Here's why I changed: if your desk is not solid wood, the base of the mount is too narrow and will start to sink in. Also, after a few years one of the arm started to sag. I upgraded for a mount double this price so not outrageous but the base is wider and the arms are sturdier. I am still happy I purchased that one because for my budget it did the job so these years and it's better than not having it. Still recommend if your budget is low and you need to save desk space, it's a great starter. If you can wait and save twice this, I suggest you do and skip to the better ones though.
**original review 2020**
Been using this mount for about 3 months, time to review:
It is an absolute game changer! Cheap, easy to assemble and install, feels sturdy. At first my wife was skeptical because she thought it would be a gimmick but it frees up so much space, it brings both monitors to the same eye-level height, the mouse cable never gets stuck under the laptop anymore, and it holds the cables in place so that when she has to run with the laptop they don't fall behind the desk anymore (see picture). All these little details improved her productivity. And just visually it looks much better I think. Laptop: 15" Monitor: 24"
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Reviewed in the United States on January 9, 2020
★★★★★ 3
Works fine overall, but... "you get what you pay for"
Size: Width 16.5", Fully Adjustable Desk Mount, Style: Single
Filed under: "you get what you pay for"? I like the price point and FOR THE MOST PART this arm is getting the job done in my home office space *but* a few points...
(1) The little "claw" to hold the laptop in place has these little "locks" that are on the under side which... that's OK but they can be hard to see and it just seems like an extra part that can break -- vs. a ratcheting clamp.
(2) The tension on every movable part was ALL out of whack when I first installed it. I set the laptop onto the cradle and it basically collapsed -- flipping down as far as it would go. I had to adjust the tension to be significantly higher in order to hold steady -- but NOW it's hard to "fine-tune" because the tension on that joint is so stiff. On the other hand, the main "elbow" joint is easy to adjust *and* holds steady all day, but within seconds of taking my laptop off of the arm, it springs up -- sometimes rather violently.
(3) The overall build quality seems a little weak. The main screw to hold the laptop stand in place had a little cap to make it easier to twist it by hand -- but this snapped off during the initial installation. Not a deal-breaker because once it was in place, I didn't expect to move it again BUT it was still disappointing.
(4) Not a deal-breaker for me BUT... there's practically no included cable management. Just... be aware of that.
Otherwise... instructions were pretty clear vis-à-vis how to install and -- like I said -- it seems to be getting the job done w/r/t/ getting the laptop up off the desk and MOSTLY aligned with my other monitors.
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Reviewed in the United States on December 23, 2025