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Source Audio AfterShock Bass Distortion

4.7 out of 5 stars from 85 customer ratings

Bass Distortion Effect Pedal

  • 3 different distortion types selectable via toggle switch: Tube mode for classic / gentle tube distortion / heavy mode for aggressive germanium fuzz sounds with ample low-end and fuzz mode for modern, synth-like sounds
  • Stereo signal
  • USB port for connection to computer and firmware updates
  • MIDI-capable via optional Soundblox HUB with up to 128 slots (not included)
  • Further parameters and algorithms can be controlled via Neuro Mobile App (iOS& Android) and PC und Mac
  • Can be connected to a smartphone via the headphone jack
  • Controls for Drive / Clean / Tone and Level
  • Multi-function jacks to connect Source Audio Hot handheld controllers or the Toolblox DualExpression for real-time control of modulation or any controller
  • Universal bypass: on request analogue buffered or relay-switched true bypass possible
  • Brushed aluminum housing / anodised
  • Dimensions (L x W x H): 114 x 70 x 51 mm
  • Incl. 9 V DC power supply
Note Register your purchase at shop.warwick.de/en/warranty-registration for an extended warranty of 4 years.
  • Available since May 2016
  • Item number 368543
  • Sales Unit 1 piece(s)
  • Effect Types Distortion
198 €
All prices incl. VAT
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85 Customer ratings

4.7 / 5

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60 Reviews

JN
Good pedal, not without minor issues though
Jon Nord 07.03.2021
What I like the most about this pedal is its extreme versatility and customisability. Using the Neuro tool (I'd recommend the Windows version, not the mobile) you can edit all the parameters that this pedal uses and the only true difference between this pedal, the L.A. Lady, and the Kingmaker is how such parameters are set. So if you like customisation, you can turn any of those three into either one, which is a very smart design choice in my opinion.

The editable parameters are well explained here: .

There are two ways in which you can save your presets: if you save them on the "green" slots (green LED lit), the pedal will recall all parameters except the ones controlled by the 4 physical knobs, whose position at any moment will dictate the value of those parameters. If you save them on the "red" slots (red LED lit), then all parameters will be recalled as stored, regardless of the current knob position (pretty much like a "full preset"). There are 3 slots for each type of presets, and NOT, as sometime stated, 3 for green and only 1 for red.

This pedal isn't without issues though. As someone else said in another review, it seems that the idea of parameters editing with the Neuro app is excellent in principle, but that they didn't manage to implement it in the best way possible. For example, the default "drive" range goes so high that slightly moving the drive knob would already produce too much distortion. Luckily there is a "max drive" setting, which in my case I had to turn right to zero to gain some finer control when I rotate the knob. I wonder in which conditions such a huge drive range is useable.

The other parameters seem to have been poorly calibrated too. For example, with certain settings, even the lowest drive value possible (0) already yields some heavy distortion effect. Also, even with the "Clean" knob to its highest value, you'll hear some distortion creeping in, if the "drive" knob is high. Isn't the "Clean" knob supposed to work as an "pedal ON"-bypass? Another example: the "Level" knob, which is supposed to compensate for the increase in volume as the drive is pushed high, has a way too low level for when the drive is below 1/4 turn. So if you turn the pedal ON, and your drive is turned up to 1/4 (which as I said it's already a big amount of effect), even with the "Level" way to its peak you will get a noticeable volume drop.

And speaking of bypass, this pedal noticeably lower the volume even when turned OFF. I tried both types of bypass, nothing changes in this respect. So whatever it's doing, it doesn't seem to me it's truly bypassing.

Now for the sound itself: I mainly use this pedal for the Tube Overdrive type of effect, and unfortunately it seems to me it is its weakest area, when compared to Distortion and Fuzz. It turns out it's not easy to chase that warm tube overdrive feeling. It took me a lot of editing and I am only partially satisfied with the results. The pedal in my opinion "colours" the sound way too much even with values set to the minimum.

Despite the few cons that I pointed out, overall I like this pedal enought to give it 4 stars. I like the concept of pedal customisation by app and I appreciate the effort by SourceAudio. I hope they'll improve in the areas I have found to be a bit lacking.
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p
All the distortion, all the time!
pike.spade 30.07.2025
I purchased this pedal because of the product's universal acclaim, but I had some reservations because a lot of DSP distortions I've tried were lacklustre for bass, including even some Darkglass products. This said, I am blown away by the Aftershock, and I'm surprised that in the 9 years since its release, it's still the king.

It's built like a tank, the controls are fantastic, and as you can see on the product images, it comes with some cables and a power supply. There is so much more to this pedal than I thought. It's a doubler, a noise gate, and a few other things.

The fuzz is great, and the B3K-modeled distortion (stock 'Heavy') sounds a lot fuller and more aggressive than the actual B3K. As I have my Aftershock plugged into an Aguilar Tone Hammer preamp, I already have a dedicated (and excellent) tube amp DSP, and I've replaced the Tube present with Nate Navarro's Tim Commerford-inspired sound from the Neuro app.

Overall, if you were to conduct a blind test between the Aftershock, a ToneX, and some flavour-of-the-month VSTs, everyone will be able to pick the Aftershock out of the lineup: it's that good! My Darkglass is definitely going on Reverb now.
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A
Great!
Anonymous 19.03.2017
Source Audio AfterShock Bass Distortion: Great in every aspect. You can choose between 3 distortion settings: Tube, heavy and fuzz. Tube is great for that crunchy vintage tone and sound. Heavy does what it says :D distorts the signal for a heavy tone and sound witch is very nicely controllable with the knobs on the pedal. Fuzz is just really good fuzz.
I personally tend to use the heavy and tube settings the most, since i play metal. And the control you have with the Neuro app... Omg, endless possibilities! The amount of tone tweaking you can do with the app is just insane, and of course if you don't want to tweak the settings you can always use the provided presets or download user created ones in the Neuro app, either way, this pedal has some amazing capabilities with or without the app. Cons: the only con that i could find with this pedal personally is that it can't be powered with a 9V battery, you have to use a power supply witch is nicely provided with the pedal. Overall i am very pleased with the pedal and i am sure it will last me a while. <3
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L
One of the most universal Bass Distortions in the market!
Linards 23.03.2017
I was searching for something like this for a long time
since the music that my band plays requires to jump from one type of distortion to another quite often. An amazing thing
about this pedal in my opinion is it's ability to go from slightly vibrated sound to a complete nuclear blast. I would even suggest
being careful with the drive if you don't have a good bass amplifier, I nearly smoked an Ampeg combo by just fooling around with a few bass chords.

The Neuro App is just something else. The possibilities it reveals are an absolute overkill. And if you are thinking - yeah well, but this thing doesn't have a noise gate,
with changeable threshold, filters, treble & bass boosts, an equalizer etc., just connect this thing to the app. I still have so much to grasp and understand but it is already replacing several other pedals combined!
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