Using Ample sound Bass in Dorico 4.3

Trying to use Ample sound bass with Dorico 4.3. but I can’t seem to get it whitelisted, any suggestions please.

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Write the name of the dll but without .dll at end in the
C:\Users\xxx\AppData\Roaming\Steinberg\Dorico 4 AudioEngine_64\vst2whitelist.txt
Something like

If you are trying to use the free Ample Bass P Lite, I think it only installs the VST2 version so you do have to whitelist it, either in the txt file @Dup mentioned or in Preferences:

Full versions of Ample products like Ample Bass U install VST3 so they should come up automatically.

(Welcome to the forum!)

Thanks for the speedy response Guy’s, I am using the full version of ABU, but no sign of it in Dorico.
I have tried going into Play preferences vst, but I don’t have the option to add more instruments,
If you have any other thoughts I’d be glad to hear them, if all else fails I could always by EZ bass!!


The standard install location for VST3 is Program Files\Common Files\VST3. If you go there, is ABU.vst3 listed? If so, Dorico really should find it automatically. If it’s not there, you might need to copy it from the Ample Sound folder and place it there.

In Play mode, with the “VST and MIDI” tab selected, you don’t have an entry in the dropdown for Ample Sound?

Hi Fred,

That’s correct no entry for Ample sound, I went to the /Library/Audio/Plug-Ins/VST/ ad it’s there with native instruments Toontrack etc.

It’s something I’ve overlooked Im sure,


Ah, you’re on a Mac. Sorry, I’m a PC guy so pretty worthless with Mac audio troubleshooting. There are enough people here using Ample Sound stuff that there obviously must be a way to get it working. Perhaps another Mac user will chime in.

Thanks for your time Fred, I should jhave specified that, hopefully some Mac user out there will respond,

Best wishes,


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Please do Help > Create Diagnostic Report and upload the resulting zip file here. We may be able to see something in Dorico’s audio engine logs.

Many thanks for contacting me, attached is diagnostic report as requested.


Dorico (767 KB)

Hi @Lewwat ,

is Ample Bass a VST2 or VST3 plug-in?
You are on an M1 and Dorico does not have VST2 support on native Apple Silicon. If you want to use VST2 plugs, you need to run Dorico in Rosetta mode.

At least on Windows, it’s VST3 and Dorico has no problem recognizing it on my system.

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Thanks for the response, it’s vst 3

But then I suspect that it is not a universal binary, because it does not get detected. Try to start Dorico in Rosetta mode and see if it then turns up.