DynaTrem Dynamic Tremolo


Keeley DynaTrem

Dynamic Tremolo & Reverb

On Sale and Shipping!

Hendrix and Vibe fans, a Must Have!

4 in stock (can be backordered)

Product Description

DynaTrem Dynamic Tremolo and Reverb

Easily our most addictive Vibe tone!

The DynaTrem Dynamic Tremolo by Keeley Engineering is an all new type of tremolo that is dynamic and responsive to your playing.   Your playing controls the Rate and Depth.  The harder you play, the more it responds.  Play softly and it relaxes.  Set the sensitivity with Rate or Depth controls and you have an unparalleled ability to be expressive with your guitar and tremolo.

Tone Trio – Three Modes

Dynamic Rate – Your playing strength controls the Rate.  The harder you play, the faster it modulates!  Relax and play softly and the tremolo almost stops.

Dynamic Depth – Play gently and it just barely throbs.  Play aggressively and it and pulse hard and deep.

Harmonic Tremolo + Reverb Mode.  Yes that phaser/vibey, soulful and sweet sound!  We have crafted our own circuits to give you a sound that is sinfully good.  Slippery and smooth, you won’t want to gig without it. Add Reverb by adjusting the SHAPE control

Wave Table

With a spin of the SHAPE control you get 4 wave-forms:  Ramp Up, Sine Wave, Ramp Down, and Square Wave.

4th Mode! All DynaTrems after serial number 300 have a hidden feature mode: Stadard Tremolo  Turn the Shape knob all of the way down and it become a standard triangle wave tremolo in the Delta Rate or Delta Depth modes.  Call us for a free upgrade if yours does not have this feature.

Or, when in Harmonic Tremolo Mode the Shape control is Reverb!

Other Features

Integrated noise reduction – developed with the code to reduce noise swells common with tremolo circuit, you get the quietest effect possible.

Output Volume Control – Can be set for a boost for stand out effect.

True-Bypass – No tone loss when off

Battery Free – Any standard 9 volt, negative tip power supply will work, like a Voodoo Lab Pedal Power II.  60mA or greater.

Keeley Engineered – Decades of audio experience and design.

The DynaTrem Dynamic Tremolo features killer graphics!  Looks like an old tube amp or old tube radio.  Tone to match too!


…Not only do you get to listen to a Pete Thorn mini-Opus, you get to hear the DynaTrem effect perfectly executed!

All Keeley pedals include a one year parts and labor warranty!

For all repairs you must complete the Repair Ticket Form below before you return a pedal for repair. We only repair pedals that have been made or modded by us, or pedals that are going to receive our mod while they are getting repaired.

There may be repair fees for pedals that will be receiving mods or pedals that have malfunctioned from user error like plugging in wrong power supply, running over it with a truck, etc… Thank you for your cooperation!

Go to our Warranty Page to fill out a Repair Ticket Form.

Product Manuals


Fuzz Head
Keeley Compressor
Nova Wah
Seafoam Chorus
Time Machine Boost


Width (Not Counting Jacks) – 2.35″
Height (Not Counting Jacks) – 4.41″

Input / Output Jack Location – Side
DC Jack Location – Top

Order in Chain –

DynaTrem really soars here… Vibe n’ Dirt

Pete Thorn Mini-Opus and Magic DynaTrem

Lance Seymour

Harmonic Tremolo Mode with Reverb

Dynamic Depth Mode

RK playing an early prototype…

Andy @ PGS always delivers!

Kyle Perrin our DynaTrem endorsee!~


Robert Keeley Electronics
1733 S Fretz, Suite C
Edmond, OK 73013



Keeley Electronics DynaTrem: A New Dynamic Tremolo
Edmond, OK – April 24th, 2015 –Keeley Electronics is set to release the DynaTrem, a brand new type of tremolo.
It’s not often that a unique sound or creative tool comes along, but that is exactly what Keeley aimed for with the new DynaTrem dynamic tremolo. The Keeley team has created a neo-vintage voiced tremolo that has two dynamic modes of operation. No longer are guitar players stuck with setting a fixed rate or depth, they now have the ability to control the pedal with just their playing style. Dynamic Depth is an input sensitive mode that adjusts the depth or how deep the volume changes based on playing strength or volume. As the note decays the tremolo’s volume oscillation relaxes to a steady output. Dynamic Rate is really exiting in that you can get the tremolo speed very fast by just playing hard. Settle in with a softer touch and the tremolo winds down. This allows the player to be creative and expressive in ways that were not possible before in a compact effect. Both Dynamic Rate & Depth Modes offer a Shape Control that lets you select one of four waveforms: Ramp Up, Sine Wave, Ramp Down, and Square Wave. Last but not least is a Harmonic Tremolo mode with Reverb. This mode borrows heavily from sounds heard on some vintage Brownface Fender amps. The modulation filter design that creates a phase or vibe type of sound as different parts of the signal are run through complimentary filters. Add to that tone a spring reverb ambience and you have an instant classic. All 3 modes of operation feature noise reduction techniques to ensure the cleanest possible tremolo sounds without unwanted hiss. Lastly we crafted a volume control to make up for perceived volume drops with tremolo circuits, allowing you full creative control! The team at Keeley has carefully crafted a tone that is both vintage and modern. It is designed to inspire and help artists create music in ways that was not possible before.
Like all of Keeley Electronics’ designs, the DynaTrem is hand-built in the USA, by engineers, programmers, music freaks, and guitar players. It includes the trademark Keeley blue LED, true bypass switching, and features a 2-year limited lifetime warranty with world-class Keeley customer support.
The Keeley Electronics DynaTrem Dynamic Tremolo goes is on sale Friday May 8th, 2015 for $199. Visitwww.rkfx.com for more information about the full lineup of award-winning Keeley Electronics effects.
About Keeley Electronics
Keeley Electronics is an award-winning manufacturer of custom designed effects pedals and pedal modifications. Delivering hand-built designs made in the USA, Keeley Electronics offers a full lineup of studio-quality effects including: top-selling Keeley Compressor Pro, Bassist Compressor, Katana Boost, Neutrino Envelope Filter, Red Dirt Overdrive, Seafoam Chorus, Phase 24, Katana Blues Drive, Magnetic Echo and Aurora Reverb. Keeley Electronics also operates a custom shop providing unique and limited-edition effects. Visit the Keeley Electronics website, on Twitter, on YouTube and on Facebook.

Press Contact:

Name: Danny Black, Sales and Production
Phone: 1-405-341-2025
Email: dealer@rkfx.com

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