DRC Polyphonic Synthesizer – Review

DRC Synth is developed by Imaginando

Available for free download in iTunes


I’ve seen, used, tested and yawned at every iOS analog emulated synthesizer. This is one particular type of synth that are dime a dozen and not short on competitive options. I’m not saying that DRC isn’t good. In fact I think it’s great. While most developers are creating a graphical resemblance to old hardware to tug at our nostalgia heart strings, these guys are putting the focus on not what you see, but how you use what you hear. 


DRC most resembles the robust and brutal sounds of iSEM (the Oberheim remake for iOS) or iMini (Or Mini Moog) with its signature sound. This definitly is a well made emulation that packs a wallop with the best. This 8 voice polyphonic analog* synth is clearly not just another sell out 2 oscillator emulator of historic hardware trying to cash in on something famous that is either hard or impossible to find. No synth lovers, they really put their hearts into this. One could argue that we have plenty of these already. True, but this not only has the sound talking the talk, it also has a interface of minimalistic design that walks the walk where functionality is concerned. 

The beauty of the simplistic and minimalist user interface design is no accident. It surely isn’t lazy or result of lacking creativity. Everything you need to use, can be used all on this one screen. No interruptions with page swiping. Just set or select the parameter tabs from the 4 quadrant window panes. It promotes a very comfortable usability that’s been largely overlooked by most. Adjusting parameters while playing live in real time allows you to bring new life and evolution into a sound while being performed. This is one of a few instances where I felt really at ease playing the keyboard and slowly maipulating a filter or noise generator at the same time. It feels right. 


Among all of the usual 2 oscillator analog emulators, DRC has something else I found interesting. The above image shows the Mod Wheel and After Touch controls. It also shows the key and scales options. At the bottom with the key labels, flanked to the right and left are ribbon controllers. I couldn’t find anything in the manual that explained them? They can be used to play through the notes of the scale. Whatever the intention is, I found them to add a little extra dimension to certain aspects. They are especially handy while using the arpeggiator. Not sure this was worth getting fixated on, it’s not the first time I’ve seen ribbon controls, but the location is what got my attention. Anyway, I just happen to like it. 

DRC has the MIDI, Audiobus, Inter-App audio supports like we expect. Abelton Link is also supported. You can use the cloud to easily share patches among your devices quite nicely. The usual filters are available, and for a synth of this breed they are the fine quality most would demand. I don’t like listing every parameter, so just check the app page in iTunes to get the full list, or visit the developer website. Both are linked at the very top of this review. 

In the modifiers DRC has something here that you don’t see every day. In the LFO waveforms options is a FS&H, Filtered Sample and Hold. It works similarly to the Sample and Hold waveform that is more common, but ramps up from one random position to another more smoothly. It has a very interesting effect to the LFO behavior. 

It has a Chorus, Delay and Reverb effect unit. You can use the Notch filter cutoff and resonance to make your own phaser effects. All pretty standard stuff. The Reverb is intentionally unrealistic and generates an interesting artificial, spacey component to the sound. It’s not designed after any real world units, or even a simple plate. It’s just a long crazy reverberation effect intended to add more depth to a sound. Interesting, but ultimately still just a cheap sounding reverb. I should add that I’m a reverb snob, so don’t put too much into my comments on this part. I just feel it could be better and remain an equally interesting sound effect. 

Free to download, DRCs synth engine is fully operational for 7 days before purchase is required to permanently unlock and use. It’s worth giving a shot if you like iSEM or iMini type sounds. If you don’t have those apps but want that type of sound, this could be a great first choice. 

6 comments

    1. Honestly that is the response I both expected and was worried about. $15 is actually a very reasonable price for a quality synthesizer like DRC, if it had no competition. It’s unfortunate that there are already so many of this type available. I actually prefer this over iMini. That F S&H LFO waveform is pretty cool, and the simplistic interface is great, but is it really enough to break out ahead of all the other choices? I hope so.
      I’d really love to see this developer make something truly innovative and new.

  1. It’s been a while since I looked in on this synth, but I do not recall it having a record function built in? In most cases (myself included) folks would be using a DAW along with their synthesizers to record. Inter-App Audio, AUv3, Audiobus are the primary means for facilitating such performance recordings in a organized way.
    BTW another excellent and totally free synth is AudioKit SynthOne. If you want a synth that has a built in record function, you may need to consider purchasing something like Sunrizer, Magellan, and the likes. Check my archives for past reviews of those among others.

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