Marshall Time Modulator 5002 'A' System

One of two we have available currently. This is a more recent "Low Noise Option" version. Condition and...

Select Currency

You missed it!


One of two we have available currently. This is a more recent “Low Noise Option” version. Condition and functioning are both excellent.

Technically this is Model 5002A-LN – our understanding is that there were a limited number of these Low Noise versions made with some components changed to drop the noise floor even further on what was already a pretty quiet analogue unit. Certainly it sounds quite amazing – as good as any of these we’ve had (and we have two in the studio – more about that below…).

Condition of the unit is excellent. Minor rack wear is the only sign of age. See photos for more information on cosmetic condition.

Comes with original 120v power supply.

Inputs and output are via the ¼” jack sockets on the front panel or XLR on the rear trailing cables.

This unit has a sticker saying it was previously serviced by David Kulka at Studio Electronics. Our experienced tech has been over it and it is in full working order.

For sales in UK/EU the price will include VAT. VAT-free sales are possible to businesses and individuals in the EU (outside the UK) with a valid VAT Number – please get in touch if you wish to buy this way.


It took me years to find one for our studio – not many were made, and they don’t come up for sale very often as people tend to hang on to them. Being a modulation freak, it was always high on my wish-list – ours is going nowhere, but this one is available.

Designed in the late seventies by Steven St. Croix, this is a truly legendary effect that represents the pinnacle of analogue circuit design – see below for some of the history of how it began as a bet (really).

Not always the simplest effect to operate – the various delay/phasing/flanging type effects from this analogue rack seem limitless and unlike other modulation/delay racks we’ve used – controls interact in unusual ways and are not necessarily intuitive. It rewards perseverance with some amazing sounds, but treat it with extreme caution and operate at modest volume levels – the levels of feedback that can emanate from this thing can destroy speakers, not to mention your eardrums!

Our own MTM was used by Reinhold Mack on the recording of Queen’s ‘Another One Bites The Dust’ (not the one for sale here), and I suspect Tony Visconti used one on David Bowie’s late 70s recordings (eg the main ‘Ashes To Ashes’ riff). It’s a very versatile and fabulously-deep box of tricks that will surprise and inspire you: by no means is this just another me-too flanger..

Intelligent devices have this to say about it: (they make a Marshall Time Modulator plug in version – find it here)

Before there was much “digital” anything, and before records were considered something anachronistic and nostalgia evoking, back when “Dark Side of the Moon” was new and Hip-Hop kind of a distant dream, Stephen St. Croix had an idea: What would happen if you took the the longest analog delay line possible, gave it the greatest signal to noise ratio in a piece of outboard gear, and then made the modulation of it possible over such a wide range that it could effect sound in ways sublime AND outrageous. Something so utilitarian and necessary that it could fit in equally well on Stevie Wonder’s “Songs in the Key of Life,” or as the means of giving extra gravitas to the sound of a bad acid trip. Stephen called it: The Marshall Time Modulator. You’ll call it “indispensable”.


The Weird and the Wonderful – An Auction Update

The Weird and the Wonderful – An Auction Update

We can't stop here, this is bat country! Our next auction (November 22nd) features some head-turning, show-stopping synths, however we also wanted to put the spotlight...

PUBLISHED: 21st Nov 2023

Teaching Machines Wellspring Reverb Review

Teaching Machines Wellspring Reverb Review

Tony takes a dive into the new Welsh-made Wellspring Stereo Reverb and comes up with a very big smile on his face.

PUBLISHED: 17th Oct 2023



We stand behind our gear with a guarantee of your satisfaction - see the FAQ section above for full details and buy with complete confidence.


When buying more than one item you only pay the shipping on the item with the highest shipping cost. Calculated automatically at checkout.


Get in touch via the contact page. We know & love our gear and we want to ensure you get something that matches your needs (that, and we just like talking gear).

Select your currency