Korg Radias

Korg Radias Image

The Korg Radias is a Virtual Analog synthesizer that was released by Korg in 2006. It takes advantage of the MMT (Multiple Modeling Technology) that their flagship OASYS synthesizer module employs. The synthesizer itself is similar in design to the MS2000, but offers many more capabilities. It is capable of emulating older digital synthesizers and classic analog synthesizers like the MS-series without any noise or aliasing. The Radias also allows for various external sounds to be fed through its filters and envelopes. It also has the Korg DWGS (Digital Waveform Generator System) that the Korg DW-8000 employs.

The Radias also takes advantage of the KKS (Korg Komponent System) which allows it to be used with the 49-key keyboard or used as a standalone rack module, and the Radias-R unit can be connected to the M3 Music Workstation/Sampler along with its various keyboard models.

Korg Radias Image

The Radias has two oscillators per timbre and a noise generator. Oscillator #1 has nine basic waveforms, with four types of modulation and PCM (64 synth sounds, 128 drum sounds) and Oscillator #2 has four basic waveforms with two types of modulation. The Radias has the ability to stack up to five types of waveforms in Oscillator #1, while using only one voice of polyphony. In Unison mode, you can stack five additional waveforms, while using more polyphony. With this function, you can create some awesome super waveforms-the overall result can contain up to 25 detuned waveforms. The Radias also has two Low-frequency Oscillators (LFO) that add more modulation to the two audio oscillators. These LFO's provide six waveforms and their speeds can be set manually or by tempo.

The Radias itself has four timbres per program. With a timbre, you can assign one drum program, another can have a lead, a bass, and a vocoder as well; all in one program! Each timbre can contain one synthesizer/drum kit, equalizer, and two multi-effects.

The Radias has two filters that can be used side-by-side, individually, or in a series. They offer Low Pass, High Pass, Band Pass, and Combination modes. Each filter offers 24 or 12 dB modes for the low pass filter. The effects on this unit are remarkable as well. The Radias comes loaded with 33 different effects: Delays, Chorus, Flangers, Compressors, talking modulator, and even the good old Polysix Ensemble effect. You can assign one master effect to the program, while each timbre gets its own two effects, creating a whole world of possibilities. The Radias also offers a 16-band vocoder with a nice Formant Motion recording function that allows you to record up to 7.5 seconds of external audio which can then be triggered via the keyboard.

The Radias has a built in arpeggiator as well, providing six different patterns to choose from. Patterns can be up to 32 steps long and the gate/velocity can be set for each step to get that sound you want! It also has two 32-step sequencers (they can be combined for a 64-step on a single timbre). They can easily be assigned to a drum kit, for example, to use the Radias as a programmable drum machine. The step sequencer supports 8-voice polyphony per step.

Korg Radias Image

Overall, this synthesizer is a nice addition to anybody's set-up. It's a good virtual analog that is also quite good for the beginner to learn subtractive synthesis on. Korg also has excellent customer service, and the owner's manual for the Radias is very comprehensive and clearly explains its many functions. The Radias also has a software-based sound editor that is compatible with the newest versions of Windows and OSX. It has been used by Jordan Ruddess and Tangerine Dream.

Lookup Korg Radias Prices

The link above will take you to an eBay search for this synth to see active listings with more images, specs and information. If you don't find it there, try looking in our forum marketplace. Our marketplace gets thousands of visits every week so make sure to check back often if you want to buy or sell a synth.

Related forum topics

Comments

Are you looking to buy or sell a Korg Radias? Post an ad in Gear For Sale or a request in Gear Wanted. For spare parts and repair services check out Gear Services & Other Goods. Our forums also has a Buyer’s Guide section where you can ask for advice on buying synthesizers.

127 Visitor comments
D9
August 22, 2010 @ 3:34 pm
I think I have the old Microkorg. I only bought it last year, but I think it's still the old version with the MS2000 engine (not the Microkorg XL). You are right though...the Radias still has very many good points.
fvsr
August 21, 2010 @ 3:59 am
Bad side aside, Radias has good PC connection, dumps and loads work fine, you can return it to the factory presets if you want (sometimes it saves you from a lot of trouble), sincs with Sonar very well, better than Waldorf, and has (IMO) good effects. And vocoder, with headset included.
fvsr
August 21, 2010 @ 2:49 am
And until today this site haven't talk anything about Waldorf Blofeld. Did Waldorf forgot to drop some coins to someone?
fvsr
August 21, 2010 @ 2:41 am
This is just my opinion. I think that yes, the MMT is responsible. Don't you think a little bit unusual an equalizer with +15 db low freq gain in edit mode? The baby born defective and they tried to fix it, but they didn't succeeded. But it isn't the only problem, it doesn't have atack transients (initial percussive noise that gives punch to the sound). It sounds like a bad Sound Canvas sometimes.
By the way: what Microkorg do you have, the old or the new one? The old one must better, Jarre used it. Not everyone likes Jarre, but he's a guy who knows what are punch, warm and thick sounds! He is playng the Nords nowadays.
The Radias works better if you think it is a pad machine, a female instrument. I have a Waldorf Blofeld also, and it's a male, very "macho" instrument.
D9
August 18, 2010 @ 11:53 pm
@fvsr: If we're talking about the same thing, I think I've had the same problem with missing low frequencies on the Radias the last few months. Overall the synth isn't bad and it can do a lot, but there is this weird thing where it seems to be missing what one might call low-end saturation. Some people call it thickness, some even call it warmth. It's a kind of cleanness to the fundamental tones that it generates which makes it seem like there are missing harmonics or something. Hard to explain. And it's definitely not a digital issue since I don't experience this issue on a Microkorg or Supernova. I wonder if the MMT engine is responsible.
 
Post Comment!
VSE Rating

Excellent

User Rating

Rated 4.22 (582 Votes)

  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 24 Voice
  • Multitimbral - 4 Parts
  • Oscillators - 2 Oscillators
  • Waveforms - Square, Sine, Triangle, Saw, PCM (Drum and Synths), Formant, Noise, Audio in
  • LFO - 2 LFO's, 6 Virtual Patches, 3 Modulation Sequencers (Waveform, Cross, Unison, VPM)
  • Filter - 2 Filters, -24db/-12db lowpass, high pass, band pass, comb
  • Envelope - 3 Envelope Generators
  • Effects - Delay, Flanger, Vocoder, Talk Modulation, Reverb, Compressor, Phaser
  • Sequencer - 2 32-Step Sequencers (combined for 64)
  • Arpeggiator - Up / Down / Random / Alt1 / Alt2 / Trigger
  • Keyboard - 49 Keys/Velocity Sensitive
  • Memory - 256 Programs, 128 Timbre Templates, 128 Insert Effect templates, 128 Master Effect Templates
  • Control - Midi In/Out/Thru, Keyboard In, USB
  • Date Produced - 2006

Errors or Corrections? Send them here.