RB-303 Refill Version 2

Thursday, August 31st, 2006 | 10:23 pm and filed in Reason, Combinator, ReFill.


For those of you who downloaded the 50meg version of the RB-303 refill. Time to delete it! It’s being decomissioned for the new slimmed down 11meg version 2. All of the samples have been looped for unlimited sustain and thus shortened. It’s taken a year to finally get this far, and it’s still not finished…It’s very close, but my friend Hami has offered to create some cool combi skins which will be applied to the final version.

Because of the smaller samples, I’ve been able to create a new set of Combinator patches which have velocity switching layers for normal and accented notes to better simulate the dynamics of the 303 sound. Ideally you will be connecting a Matrix Pattern Sequencer to drive these combis, and the default gate level will trigger a “normal” note. Increasing the gate value to maximum will trigger an “Accent” note. There is an example song file called “Accent Demo.rns” which demonstrates this setup.

The Slide feature still does not work in the same manner as ReBirth or a 303, so as a workaround, there is an extra set of samples with moderate portamento settings. The combi simply switches between the legato set and the retrig set of samples. It’s overkill, but this was the only solution i could devise with the NN-XT.

Like the previous version, you will need the RB-338 Refill with some of the demo song files. This is still available from the Props Website.

RB-303 Combis

The RB-303 combis are based on the Bass Filter patches, released here several months ago which added filtering and specialized equalization that attempts to emulate the roland 18dB filters. Its a chains of effects that relies on the 6dB filter of the NN-XT in conjunction with an ECF-42 and a MClass Equalizer. It’s by far from a perfect copy, but it’s functional and provides a 303-ish experience.

There are now twelve different combinator patches provided in the ReFill. The original for are still there and will function with tracks you’ve created with the earlier version.

RB-303.cmb loads both the sawtooth and squarewave samples, and allows the user to switch between the two by toggling combi button 4.

RB-303 Sawtooth.cmb and RB-303 Square.cmb simply load one set of the samples.

RB-303 Sawtooth & Square.cmb loads both sets and plays both sets of samples simultaneously for a thick layered sound.

Dynamic patches have the accent feature described above. The four base patches are duplicated with this feature, and there’s an extra RB-303 Dynamic2.cmb with slight parameter tweaks.

Square Sub Dynamic.cmb was created for a 202-ish type of sub square wave oscillator sound.

RB-303 Stack Pad.cmb uses the RB-303 samples to create lush polysynth textures. Four sets of the samples are layered with some effect options.

RB-303 Sawtooth Velocity Lead.cmb is a basic monophonic sawtooth lead patch transposed for keyboard play rather than being driven from a Matrix Pattern Sequencer. It has the same parameter controls as the RB-303+Bf-318 patches, but the mod wheel controls a warbling LFO modulation like a typical lead patch. The velocity scaling is also better suited for keyboard play, and does not have the accent features.

RB-303 Combi Controls

FREQUENCY Knob controls the filter cutoff frequency and modulates the MClass EQ settings.

RESONANCE Knob controls the filter resonance on the NN-XT and the ECF-42. This control also modulates the EQ shape.

DECAY Rotary modulates the decay and release stages of the envelopes on the samplers as well as the secondary filter.

ENV.MOD Control increases the modulation intensity of the ECF-42 only.

DISTORTION Button, enables a preset distortion patch embedded in the combinator.

HYBRID FILTER Switch toggles between the 18dB Low Pass configuration and a hybrid of the NN-XT 6dB lowpass and the ECF-42 12db Band Pass filter.

SLIDE Enables the portamento feature on the NN-XT samplers nested in the combinator patch.

MUTE Button, mutes the output signal.

SQUARE-SAW Button, featured only on the RB-303 combinator, switches between the two sample sets.

RB-303 Stack Pad Combi Controls

This one came out surprisingly cool. The mysterious S+S combi in the previous version evolved into this patch. There are four NN-XT samplers that layer RB Sawtooth, RB Square, Square Sub (just the square transposed down), and a Sawtooth transposed up a 5th. It might be a bit overkill, but this patch is capable of creating some very cool polysynth textures as well as nice velvety pads.

FILTER FREQ Knob controls the filter cutoff frequency globally on the four NN-XT samplers.

SUB OSC LEVEL Rotary controls the mix level of a Sub Square sample set.

5TH SAW LEVEL Knob adjust the mix level of the Sawtooth samples transposed up a 5th.

RELEASE Control globally adjust the release time of the four sets of RB-303 samples.

EQ ENABLE Button inserts a MClass EQ which adds a touch of bass tilt to the patch.

UNISON ENABLE Button adds a UN-16 into the effect chain. Goes from a synthetic analog sound to really really synthetic.

COMP ENABLE Button engages a COMP-01 compressor. The output from four layers of NN-XT samples can get pretty loud when playing polyphonic parts. The compressor works to stablize the output levels.

REVERB ENABLE Button - duh?.

SQUARE-SAW Button, featured only on the RB-303 combinator, switches between the two sample sets.

MOD Wheel adjusts the filter resonance on the NN-XT samplers. There is a slight envelope modulation on the filters which is noticeable when the resonance is increased.

ReBirth - PCF Combi Controls

This combinator patch requires users to show devices and select a Matrix Pattern that triggers the ECF-42 envelope. Many of the Original ReBirth PCF Patterns are transcribed based on the pattern illustrations in the ReBirth manual. Other patterns, especially in Bank D, are original.

FREQUENCY Knob controls the filter cutoff frequency.

RESONANCE Knob controls the filter resonance.

AMOUNT Control adjusts the modulation intensity of the Env.AMT and Vel. parameters on the ECF-42.

DECAY Rotary modulates the decay and release envelope stages of the ECF-42

BAND - LOW PASS Switch toggles between the ECF-42 BP 12 and LP 12 modes.


A year after the ReBirth Museum was launched, most of us are still pining for the ReBirth sound in Reason. I usually tell people to get the AudioRealism 303 plugin, but I’ve recently met a few people who are busy building x0xb0xes (which btw look really cool). Until an actual rebirth of rebirth, i guess this will have to do. Like i mentioned in the beginning - THIS IS NOT THE FINAL VERSION! but you can download it anyways:

Download Peff-030 RB-303.RFL 11Mb Zip File.

11 Responses to “RB-303 Refill Version 2”

  1. Ingo Vogelmann Says:

    Cheers dude, will try this out today. You rock, thanks for all this stuff :o )

  2. Ade Says:

    I do believe I’ll give this a try :)


  3. pdtnc Says:

    After a nice little play I’d have to say that this is most impressive…
    A year ago I’d played around with using 2 filters on one source, just tried a coupe of Square wave form Cycles recorded from ReBirth… no such fun though!

    This was just what I was looking for at the moment, untill someone bolts ReBirth permenantly into Reason ;)

  4. djabacus Says:

    i have x0x #108!

    it’s still not done yet!
    thanks for reminding me.
    i should go finish that.

  5. Quantum Anomaly Says:

    Peff! Thank you! With your ReBirth RB-338 303 ReFill you have changed my life. You don’t understand how much this means to me! Ever since I first started using ReBirth I thought “cool sounds, but where’s the sequencer window?”. Then I heard about how Reason incorporated ReBirth and I though “perfect!” until I found out it was just an input machine and you still had to sequence with buttons in ReBirth. I loved the ReBirth sound but found the step sequencing to be daunting. What was I to do? I actually went so far as to make Rex loops out of each 303 for each part of each of my ReBirth-based songs and plug them into Reason so that I could tweak those sounds live. It got the job done but was a pain in the ass and time that could have been spent creatively was spent in the preparation/maintenance of those sounds. And if I decided I wanted to make an edit later…forget about it! For years I have been praying that the Propellerheads would wise up and just make the ReBirth machines part of the Reason rack …and then they went and discontinued ReBirth altogether! The ReBirth drum ReFill they released covers the drums, but everybody knows we all love ReBirth for its 303s! Peff…I am forever grateful. I feel I owe you something for your dedication to this noble cause - and furthermore your generosity in distributing it freely. I’m going to go out and buy your book. You rock!

    Quantum Anomaly

  6. Quantum Anomaly Says:

    Hey Peff, I put your ReBirth Refill to good use over the Thanksgiving break. Here is a link to one of the songs I made (published Reason file):

    click here

    or copy & paste this URL


    Quantum Anomaly

  7. Peff Says:

    Quant: I don’t have all of the refills you used. I guess i’m going to have to find all of those Reasonbank volumes, but what i heard is killer!

    dana: The final version will simply be a cosmetic improvement.

  8. Louie Says:

    Hey Peff,

    thanks for the great Refill…

    Many greets


  9. Peff Says:

    Louie: Thanks! I hope to get the finished version out soon!

    Happy Holidaze,

  10. peff•com » Blog Archive » RB-303 Final Now Available Says:

    […] More Information about the patches […]

  11. PSYCHOGATE Says:

    Thanks a lot for all this stuff Peff!!!! I can really use all your refills here.


    Greetz Myckee

    ausm Schwabenland (German) :-)