4.7 / 5     (19 votes)
Win32 Win64 OSX
The Nabla simulates the KORG Delta String DL-50 strings synthesizer from 1979.

Paraphonic synthesizer and strings sections: up to 64 voices polyphony.

Synthesizer section:
  • 4 band-limited frequency divider-driven signal generators.
  • Additional noise generator.
  • 4-pole zero-delay feedback bandpass/lowpass filter.
Strings section:
  • 2 band-limited frequency divider-driven signal generators.
  • 2-band equalizer. Ensemble effect.
  • Flexible pitch/filter modulation by LFO or noise.
Tweaks (not to be found in the original Delta):
  • "GOD Mode" to provide true polyphony.
  • Panning for Synthesizer/Strings sections.
  • Built-in phaser and delay effects.
Double precision audio processing.
All parameters can be controlled by MIDI controllers.
Plug-in comes in 32 bit and 64 bit versions.
Fully compatible with SM Pro Audio's V-Machine.
Please support freeware development
John Burns Sep 20 2022
(3 / 5)
Sep 20 2022
Not impressed with this one. Some of these FB synths are great tools for making all sorts of styles of music but some have a really specific tone to them that's really only suitable to certain genres. This one (and the korg fury VST) feel very much like they're of a specific point in music history and are only really useful if you want to sonically reference that moment in time. Ironically, for a string synth, I think the pads on this aren't that great and it's actually the organ sounds where this one really shines. Not a great synth IMO but it's very well made, like all the FB VSTs are.
Andreas Jul 15 2021
(5 / 5)
Jul 15 2021
The Korg Delta was my very first synthesizer back in the 80ies. It was my only synthesizer for a long time and I used it every day. This plug in is really great. Amazing how it emulates the sound of the original.
Bob Angelo Jun 28 2021
(5 / 5)
Jun 28 2021
The Nabla, as with the Korg Delta it emulates, is a very basic synth, nothing special... except the sound that is great ! Everybody should have one of those re-creation of those old but mighty "strings synth", and the Nabla is the one for me, good UI, nice presets, MIDI learn, classic strings synth sound !
duc Jun 07 2020
(4 / 5)
Jun 07 2020
I love it
Firo Lightfog Jun 04 2020
(5 / 5)
Jun 04 2020
Excellent! Low CPU usage. Smooth leads. Love it.
waz Sept 19 2019
(5 / 5)
Sept 19 2019
Have this in the studio fully reconditioned. Was gonna take it home and sample it up but now no need. plus a phaser and delay. Awesome emulation
Mato Apr 08 2019
(5 / 5)
Apr 08 2019
Paul (London) Jan 21 2019
(5 / 5)
Jan 21 2019
Nice rich 70s sound, awesome, this is a sound I've been looking for.
Anonymous Nov 24 2018
(5 / 5)
Nov 24 2018
I love it!!! wth?! so good!!<3
Mud Shark Oct 27 2018
(5 / 5)
Oct 27 2018
This is one of my favourite 70s style string synths. I actually prefer this to Arturia's string synth (great though it is) for many uses. This synth makes sounds with real character, the presets need playing with to get the best out of it. Makes some great warm pads if you spend a little time on it. Thanks Full Bucket
Lone Shark Oct 06 2018
Oct 06 2018
The Delta was my first synth, and while the paraphonic operation on this is a little wonky, the sound is really good.
Ohmdepop Dec 24 2017
(5 / 5)
Dec 24 2017
Thanks yo.! Both raw and thick sounding, very nice!
eg571212 Sept 22 2017
Sept 22 2017
Very good VST, lush sounds. If you are looking for '70 string sounds, try also 'The Deputy II' from same editor.
Bruce Mar 22 2017
Mar 22 2017
Is there a place to get presets?
ikillkings Jun 21 2014
Jun 21 2014
beautiful VST, love it! <3
Igrewsome Apr 27 2014
Apr 27 2014
I had a Korg Delta and miss it greatly! The moment I heard this VST, I flipped out - he caught it perfectly! It's exactly the sound I remember from my Delta, except it didn't have delay... Good job! If you like retro synths, this is a must have.
Anonymous Apr 04 2014
(4 / 5)
Apr 04 2014
I really like this very strong sounds!