SFX Machine Pro, SFX Machine Pro for RTAS, SFX Machine RT, and
Backwards Machine

The ultimate audio effects software

Audio Unit, VST and RTAS Multi-Effects Plug-ins for OS X and Windows

We're going out of business at the end of April. All plug-ins are $5 until then. Coupons are not enabled at this price.
No support will be provided for software sold at this sale price, so download the demo first and make sure it works for you.

The Adobe Premiere format version of SFX Machine debuted at NAMM in 1997 and was released a few months later. It has been available in various formats for 20 years! Not sure, but this may make SFX Machine the longest-selling audio effects plug-in in history. SFX Machine RT (VST format) was released in 2003, and SFX Machine Pro (VST / Audio Unit) has been on the market since 2006.

Along the way, we also published Backwards Machine, Spectral Machine, ReSpatializer, and ChatterBlocker, not to mention our special April 1st products like Turd Polisher Pro. We've had a pretty good run, but all good things must come to an end.

Electronic Musician 2007 Editors Choice award
MacLife Editor's Choice award
SFX Machine Pro screenshot
"SFX Machine is the one effect that has been on my ever-changing list of hardware and software in my studio. If people knew how much modular effects work I've done in this thing and how many of my sounds I'd made using it, one of my best secrets would be out!! Read more...

BT (Brian Transeau, composer, singer, songwriter and Hollywood film score producer)


The most advanced members of the SFX Machine family of audio effects plug-ins, SFX Machine Pro™ and SFX Machine Pro RTAS™ let you create your own audio effects from scratch.

SFX Machine Pro supports VST and Audio Unit formats. The Mac and Windows versions now support 32- and 64-bit host programs!

SFX Machine Pro for RTAS supports Digidesign's RTAS format for Pro Tools (32-bit only).

SFX Machine is a two-time winner of Electronic Musician's Editor's Choice Award. It also won an "Awesome" rating and an Editor's Choice award from Mac Life magazine. Read what our customers say...

SFX Machine Pro includes:

A modular synthesis Preset Editor
Host Tempo Sync
An Output Limiter
MIDI Learn
Over 300 Presets
and a new interface
SFX Machine Pro is like zillions of plug-ins in one. The advanced Preset Editor gives you direct access to the modular synthesis parameters that make up a preset.

The Host Tempo Sync feature lets you match LFO frequencies and delay times to your sequencer's tempo.

More info on SFX Machine Pro...
More info on SFX Machine Pro for RTAS...

Information for Guitar Center EPIX / XCHANGE Bundle purchasers

SFX Machine RT logo
SFX Machine RT screenshot

SFX Machine RT offers quick and easy access to over 250 presets. It is designed for simplicity and ease of use. Simply choose an effect category, click on a preset, tweak the sliders, and you're done.

In addition to its unprecedented range of effects, SFX Machine RT can also be used as a "Swiss Army Knife" of audio utilities.

Like SFX Machine Pro, SFX Machine RT provides automated preset modification, using a simple 'MIDI Learn' system.

If you're new to SFX Machine, try the
interactive SFX Machine simulator.

Backwards Machine logo
Backwards Machine Screenshot

Available Now

Backwards Machine™ lets you reverse continuous audio in real time.

By reversing and overlapping snippets of the incoming audio, Backwards Machine simulates an ongoing backwards effect. It includes three presets:

  • Reverse Playback,
  • Forward Backwards, and
  • Reverse Repeat

The plug-in is available in VST and Audio Unit formats. The Mac version is 32-bit only; the Windows version supports 32- and 64-bit VST hosts.

More info...

Buy now (US $9.95)

60-Day Unconditional Money-Back Guarantee
SFX Machine Pro for Mac (VST & AU) and Windows (VST), and Backwards Machine for Windows (VST) are 64- and 32-bit compatible; all others are 32-bit only. However, the 32-bit Audio Unit versions will work with 64-bit host programs by using 32 Lives, available from http://www.soundradix.com/products/32-lives/ .

Purchasers of any one of our products can get additional products at a discount price. To receive the cross-grade discount:

  1. Go to our order page
  2. Click on the "Add to Cart" button under the version of SFX Machine you want
  3. On the "Your Cart" page, click the check box next to Backwards Machine

Not sure whether to buy SFX Machine RT, Pro, or Pro RTAS?

Students, faculty, staff and educational institutions: contact us about our educational discount.

We offer a site license for companies or institutions interested in ordering multiple copies.

See our Tech Support page or go to our User Forum at KVRAudio.

Like us on Facebook Become a fan of our Facebook page, and be among the first to receive news about updates, discounts, and our sometimes annual April 1 press release.

We donate a percentage of our proceeds to Guitars Not Guns, http://www.guitarsnotguns.org, an organization that delivers guitars and lessons to foster kids, needy kids and at-risk youth. They help stop gun violence by supplying an alternative. Click on the link if you want to volunteer.

Contact us with any questions or comments.

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© 2017 The Sound Guy, Inc., 14941 McVay Ave., San Jose, CA 95127. All rights reserved.
"Sound is our middle name."

SFX Machine, SFX Machine RT, SFX Machine Pro, SFX Machine Pro for RTAS, Backwards Machine, and The Sound Guy are trademarks of The Sound Guy, Inc.
VST is a trademark of Steinberg Soft- und Hardware GmbH.
Digidesign, Pro Tools and RTAS are trademarks of or registered trademarks of Avid Technology, Inc. or its affiliates in the United States and/or other countries.
Apple, Mac, Macintosh, and Audio Unit are trademarks of Apple Computer, Inc., registered in the U.S. and other countries.
Other company and product names are trademarks or registered trademarks of their respective holders and should be treated as such.
Not using Arvixe any more!
All features and specifications subject to change without notice.
SFX Machine RT © 2003-2017 The Sound Guy, Inc. All Rights Reserved.
SFX Machine Pro © 2006-2017 The Sound Guy, Inc. All Rights Reserved.
SFX Machine Pro for RTAS software and documentation © 2006-2017 The Sound Guy, Inc. All Rights Reserved.
Backwards Machine © 2007-2017 The Sound Guy, Inc. All Rights Reserved.

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