bx_subsynth Subharmonic Synthesizer

bx_subsynth Subharmonic Synthesizer


You have no items in your shopping cart.


You have no items in your shopping cart.

Add bone-shaking subharmonic
bass to your sources.

Born in the days of disco, subharmonic synthesizers helped overcome the low-end limitations of vinyl, giving DJs, sound designers, and club mixers pounding kick drums and booty-shaking basslines that defined dance music.

Developed by Brainworx, the bx_subsynth Subharmonic Synth plug-in for UAD-2 hardware and Apollo interfaces takes its cues from the iconic dbx 120XP Subharmonic Synthesizer, but with a host of modern features.

Now You Can:

Easily add massive low-end punch without affecting the midrange

Beef up kick drums, bass synths, or even old vinyl

Use the M/S feature to pinpoint where you add bass

Harness features like the extra frequency band, the Edge section, and the expanded metering

Take a Listen

Take a Listen
Updating a Classic

Updating a Classic

The bx_subsynth Subharmonic Synthesizer plug-in takes the dbx 120XP’s Waveform Modeling engine one step further by adding a third synthesis band. This extends the upper end of the synthesis range from 56 Hz up to 80 Hz — where many crucial instrument fundamentals lie — allowing you to process a wider range of sources, from electronic kick drums to bass synths and more.

Saturate Sources

Saturate Sources

The bx_subsynth Subharmonic Synthesizer plug-in’s Edge section lets you compress and saturate your source — a handy feature for shaping subharmonic content or building explosive transient peaks. And with Smooth or Harsh modes, Squeeze and Drive, as well as Low/High-Cut filters, you’re afforded an unprecedented amount of control over subharmonic information.

Full Stereo Spectrum Control

Full Stereo Spectrum Control

The bx_subsynth’s M/S features give you the option to focus the processing only on the mid channel. Sound designers will love being able to pump the center up to blockbuster proportions without affecting the sides. The stereo field can be further tweaked with the Mono Maker and Stereo Width controls, which keep the image in phase and provide you with total control over the perceived signal width.

dbx 120XP and Waveform Modeled Synthesis are registered trademarks of Harman International. The bx_subsynth was developed by Brainworx based on its own modeling techniques. Neither dbx, Harman, nor any of their affiliate companies have endorsed or sponsored the bx_subsynth in any manner, nor licensed any intellectual property for use in this product.

Key Features

Three-band subharmonic synthesis with individual additive parameter adjustment, metering, and solo, allowing total control over your added sub content

Dual-mode saturation section with filtering and Intensity controls

Mid or Stereo Synthesis Input control allows subharmonics to be generated on either mono or stereo information

M/S section with Mono Maker and Stereo Width allows precise control over the stereo field

Customer Reviews

bx_subsynth Subharmonic Synth

Overall Rating

H. Mendez

September 18, 2019

A Little Extra

A Little Extra for your final mix. Thanks

g. martinez

June 24, 2019

infra top de top

vraiment surprenant la touche qui me manquait pour mes infra Bass

g. martinez

June 24, 2019

infra top de top

vraiment surprenant la touche qui me manquait pour mes infra Bass

P. Dunck

June 5, 2019

Great effect

When you need to bring the low end to another level, there is something you try before everything, there's something I call bx_subsynth Subharmonic Synth. There are many tools inside of it that will put your low end "where" exactly you want it to be. Great great plugin!

C. Pinto Barrosa

March 30, 2019

Good for filling up the deep low end

Cool plugin for getting more weight on the really low frequencies of a bass recording, if they are not there. Works

UAD User

March 13, 2019

Love IT!!!!

Love it Love it freakin Love it

W. Ryan

February 27, 2019

Subtly fattens your mix in a good way

Good for the mix which helps that final mix

L. Zavala

February 2, 2019

Impulse Buy Delight!

Stunned at how useful this plugin is! I accomplish getting the low end to sound exactly as I want without really affecting anything else. Very useful when EQ alone won't do the job. Totally worth it!

P. Kelly

January 23, 2019

I am Impressed

great for adding a little magic to your tracks

P. Kelly

January 23, 2019

I am Impressed

great for adding a little magic to your tracks

R. Fernandez

January 21, 2019


Fantastic for Low End.

E. Offord

January 21, 2019

On the bus

Gives me that low end I need that regular eq can't give.

E. Wohl

January 15, 2019


I can't believe. that I waited this long to get this, I don't realize how much I needed it until I got it!

R. Gonzalez Yanel

January 12, 2019

Lowend a tope!

Plugin muy recomendable para potenciar tu lowend. Muchos parametros para afinar. Recomendable

V. Kositsky

January 12, 2019

Makes mix alive

I was always sceptic about sub harmonic generators. Brainworx nailed it. Great and fresh on bass and kick, but also - surprise - on multiinstrument bus Easy way to pimp your mix!

L. Sostomi

January 10, 2019

Great idea!

I trialed it and it worked well, but the more I use it the more short comings I notice. Doesn’t always track well, makes some weird noises at times. When it works well I love it.

D. Hanold

January 9, 2019

It’s on every mix

I have this sitting in my Mix Bus. It does exactly what I ask it to do to my low end.

R. Nastyuk

December 30, 2018


With this plugin your basslines will sound deeper than Mariana trench.

r. sveinungsen

December 26, 2018


This plugin, gives some cool harmonics . It is awesome when you need softer transients. And it adds nice subharmonics to the mixes. Can be used on everything from bass, to guitar, drums.... Try it out !!!!! Mvh: Himlalyd

M. Łuczak

December 15, 2018


Great for bass