Hello Friends,

In the spirit of the holiday season and my dad’s 80th birthday, I’ve decided to share some speaker IRs with all of my Fractal Audio guitar playing friends! The speaker cab IRs come with a unique history. The 4x12 Brit FZ - a Red fabric covered 1970s Marshall cab with 4 JBL D120 F speakers. These cabinets were part of my dad's guitar rig called "Ma Bell" in the 70's.

4x12 VSB FZ - a Red fabric covered 1970s Vox Super Beatle with 4 JBL D120 F speakers.
The mics used to create the IRs were a vintage white Sennheiser 421, a Neuman U67 formerly owned by Freddie Mercury, and an AKG C12 formerly owned by Neil Young. 
The mics were processed using the 1968 "Rolling Stones Mobile Recording Studio", famously used to record albums including Led Zeppelin III, IV, Houses of the Holy, and Physical Graffiti, as well as Machine Head by Deep Purple, Sticky Fingers by the Rolling Stones, Who's Next by The Who, and many others.
The cabs were captured by Dweezil Zappa and Matt Picone at EMEAPP outside of Philadelphia. They have been tuned for humbucker guitars but also work well for single coil. All equipment in this session was used courtesy of EMEAPP (


If you like these FREE ultra-rare speaker IRs that come with a considerable pedigree please consider becoming Silver Subscriber as well. In the future, I will be creating an entire speaker cab IR collection paired with custom made Fractal Audio presets.It will be part of an ongoing library with different purchase options.

Be sure to download your free cab IRs for Christmas and anything else you fancy on the site.

To download - Add the free product to your cart below.

Enjoy the IRs and happy holidays to you and your families! Best, DZ
Alex S.

I thought it was for Windows OS

Einar F.

Thank you & Happy Holidays!!

Michael S.

Any chance of releasing them in a .wav format?  I'd love to try them.

Greg F.

Hi dweezil thank you so much, but now I want one Axe FX III  these files will not work in my Axe FX IIXL 


Michael M.

I think their cab lab product will do this. Check the Fractal Forums but i think so.

tim b.

Dweezil: Can these be converted to .wav format for use with the Helix or with other devices - i.e. Two Notes Torpedo?


Hi Tim,

I'll have to find out. I'm not sure.

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