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NEW, Shruthi/Phoenix  with CD 4069 Filterboard . A kind of  this  filter was used in the EDP WASP Synthesizer fom the  1978

new case,  new 4xCV in - new sound 

DIY instructions , click here

Phoenix - Synthesizer  with CD 4069 Filter is available NOW 23.07.2019 as a limited edition

Phoenix (formally Shruthi)  synthesizer

available in the standard and also XT Version

DIY experience =easy/middle

We offer Phoenix  synthesizer  as a  DIY kit. DIY scills 'easy/middle'  - 

technical specs are

:

  • one voice monophon
  • a lot  of  different filter boards  available 
  • 2 oscillators
  • 2 LFO
  • 2 ADSR
  • Step  sequencer and ARP
  • 12x modulation matrix
  • DIY friendly
  • power 9 Volt 600 mA DC ( not include in the kit)
  • 512 kb EE-Prom to store  the sounds
  • Open source and open hardware
  • a great comunity  works on new software features
  • MIDI
  • up to 512  patches storable /depends of the EE-Prom
Buy it , go to the shop
Phoenix and Shruthi DIY manuals , Motherboard and filterboards , click here !

Here you find all BOMs, Schematics, Firmware  for Shruthi/Phoenix

New Phoenix/Shruthi Motherboard V2 with 4 x CV in 0..10 Volt

on current demand we have extended the Phoenix/Shruthi motherboard with 4 CV in. The sampling rate is 10..20 Hz. 

In the modulation matrix the CV inputs can be routed to different destinations.

 

Now 2 different types of buttons can be used.

The motherboard V 2.0 is fully compatible to the V 1 motherboard.

 

The 4x CVs can - but do not have to - be installed. The 3.5 mm jacks and the MCP 6004 and the resistors/diodes are available separately.

and  there is an overvoltage/polarity reversal protection.

 

A new case which contains additional holes for the CV is planned.

 

And .. it is black ....Now  for the Phoenix CD 4069  version and  the normal Phoenix/Shruthi.

 

Before I built my first Shruthi from Mutable Instruments I thought to myself, 'well, can't be a big thing. If it doesn't sound good or is just a toy then I sell it on E-BAY'.

I remembered the old machines I built in the 1980/90 like the Frormant module system or the Transcendent 2000.

Such a Shruthi - let's see ....... 

 

The Kit was assembled and put into operation. Oops - what the hell was that ?

I got a really good little analog synth.

I didn't expect anything like that and it totally blew me away.

No rushing, no cracking, deep basses, nice leads and a lot of wacky functions like a 12x modulation matrix or an ARP with different patterns and a step sequencer is also included.

This synth has 2 oscillators plus a sub oscillator, 2LFO'S, 

2 ADSR an analog filter and much more.

An incredible little box.

 

First i was impressed from the achitecture. Shruthi ( ok let us call it Phoenix - it is the same instrument - only the name  had changed  because it is a brand of MI ) comes as two hardware parts .

 

  1.  the motherboard
  2.  the filterboard

The motherboard is the digital heart of the Phoenix. It generates the different digital waveforms of the two oscillators, the LFO's and the ADSR envelopes. .

 

The filterboard is the analog path. It contains the VCA and the filter circuit. Digital control voltages of the motherboard are converted to analog control voltages. The now analog control voltages control the individual function modules.

 

It is possible to connect different filterboards to the motherboard. A selection can be found below on this website.  

 

All in all,  for me it is one of the best sounding DIY synthesizer with a lot of features.

The DIY scill is middle .

Normally it should  be not a great deals to solder it together and bring it alive .

what is the difference between the normal and XT Phoenix / Shruthi ?

 

the normal Phoenix has 4 potentiometers and an encoder. With it you can change the parameters and scroll through all menus and submenus.

 

die XT Version had 29  Potis  and 19 switches  for nearly all functions. .

 

However, the modulation matrix and some special functions must be entered directly - as with the normal Phoenix. 

The sound is the same and also the firmware is the same .

It is possible to use all filterboards also for the XT.

For a full working XT you need  the XT motherboard and  one filterboard - and a case

Buy XT MOBO , go to the shop

Soundexamples Shruthi/Phoenix

 and here 

Soundexamples  with different Filterboards

 

NEW: here is  the home of the SHRUTHI/Phoenix filter PCB's

in preparation are the following filterboards 

NEW: WASP  filter for Shruthi > coming soon /KIT/PCB

DSP digital  filter for Shruthi/Phoenix > available as  a PCB+preproged Atmega **Kit maybe 

SSM2044 filter for Shruthi/Phoenix > available as PCB  ** Kit maybe

 

 

 

Here the actual filtertypes for the Phoenix

 

  1. SMR4MK2,  usefull for all kinds of sounds , very warm and nice  12/24dB  switchable per jumper, this filter  comes as a default filterboard with the kit, easy to solder and DIY friendly .If you will start with the Phoenix - use this filter. DIY level -  easy/middle
  2. Four pole mission,  a nice filter with 15 differen filtertypes,  a little colder than the SMR4MK2 but also very usefull for all kinds of electronic sounds - and very flexible. DIY level  middle
  3. Ladder Filter, sound is crunchy , and  with soft distortion . LP  only  DIY level -  easy/middle
  4. Shruthacon, a steiner Parker filter , gives Phoenix a very special sound. Short bevor the self oscillation it boosts the overtones. Some people says - it is like Jimmy Hendrix on dope ..... DIY level -  /middle
  5. Yellow magic,  a sallen key filter with an additional  delay chip  is also one of my favourites , special, but also   nice for   Tape delay effects. DIY level -  easy/middle
  6. Polivoks, greets from russia, based on  the LM4250 chip and sounds like no other filter. Dirty and a little distorted  DIY level -  easy
  7. Dual VCF,this filter board features 2 independent 2-pole state variable filters with low-pass, band-pass and high-pass modes, which can be routed in serial or parallel. The routing and mode switching is digitally controlled and can be stored in patches.
  8. The CD4069  ,this Filter is a filter based on the CD4069 and similar to the EDP WASP Synthesizer filter from the 1980. It has LP and BP and 2 levels of distortion. From deep bass to screaming lead sounds, anything is possible - and much more. It can also be soft and unspectacular when distortion is off, but who wants that? DIY level middle

NEW,  SSM 2044 Filterboard

New:  CD4069-Wespe filterboard 

SMR4-MK2

4PoleMission

Ladder

Yellow Magic

Polivoks

Dual SVF

Shruthacon

Buy Filterboards , go to the shop

Plexiglas cases for Phoenix/Shruthi V1 ( V1 next obsolete ) and for V2

The case for V2  had a protection glass ,  on/off switch and  holes for CV in .

case Mounting

Buy it , go to the shop

Phoenix 

Phoenix in a plex case

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