Prophet 5 versus Prophet 600

A forum for comparing two or more synths against each other. Also known as "versus" threads.

Re: Prophet 5 versus Prophet 600

Postby Floss » Mon Mar 18, 2013 11:51 pm

guess ill be hanging on to this thing then lol
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Re: Prophet 5 versus Prophet 600

Postby sfxgligli » Tue Mar 19, 2013 1:51 pm

Besides parameters resolution and shitty envelopes, there's 2 main things that make a stock prophet 600 sound different than a prophet 5 I think:
- You can't mix the 2 oscs at full volume, because of the single pot mixer. That means you can't really overdrive the filter like you can on a P5.
- You can't fully open the filter without adding envelope, modulation or keyboard tracking, that's why the P600 is known to have a kinda 'dark' sound I think.

Those 2 are software limitations, and sometimes I wonder if they weren't added on purpose, so that the P5 would still have an edge on raw tone!

By the way the P600 DAC is wired as 14bit (from a 16bit capable chip), that's pretty good for a synth from 1983. The only problem is the CPU was so slow, they chose to only use the top 6bit for most parameters! A software limitation again...
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Re: Prophet 5 versus Prophet 600

Postby Bitexion » Tue Mar 19, 2013 6:33 pm

Well surely SC would have nothing to gain by making the P600 "exactly the same as the P5, only twice as cheap".
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Re: Prophet 5 versus Prophet 600

Postby Floss » Tue Mar 19, 2013 10:12 pm

sfxgligli wrote:- You can't fully open the filter without adding envelope, modulation or keyboard tracking, that's why the P600 is known to have a kinda 'dark' sound I think..

ugh so true... i thought something was wrong with mine. You can't change the envelope mod too WHILE your playing, you gotta stop and then change the envelope mod dial next to the filter!
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Re: Prophet 5 versus Prophet 600

Postby Floss » Wed Mar 20, 2013 8:08 pm

Does anyone know how to stack the 12 OSCs on the Prophet 600?
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Re: Prophet 5 versus Prophet 600

Postby GuyaGuy » Wed Mar 20, 2013 10:15 pm

Floss wrote:Does anyone know how to stack the 12 OSCs on the Prophet 600?

unison mode? :?
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Re: Prophet 5 versus Prophet 600

Postby Floss » Thu Mar 21, 2013 2:32 am

Ohh... I thouht it was only doing 6. I found somewhere saying when you turn a knob to the right, it uses all 12 or something like that
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Re: Prophet 5 versus Prophet 600

Postby code green » Thu Mar 21, 2013 5:54 pm

GuyaGuy wrote:
Dr. Phibes wrote:Er yeah whatever it is that causes all that digital chicanery.

Here's the guy's website: http://prophet600.blogspot.co.uk/. He occasionally posts on here too.

I love my 600 but I'd love it even more with improvements. Not sure of the scope of that project but ideally a noise source would be added. I'd be happy with a digital one...


One thing that's added quite a lot of spice to my prophet 600 is adding an external (i.e., much faster) LFO source. I use the LFO out on my MF Ring Mod, but there are any number of ways to skin that cat. You can hear the results in a number of the sounds on this demo:

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Re: Prophet 5 versus Prophet 600

Postby minisystem » Sat Mar 23, 2013 12:28 am

I think it's been covered in another thread, but since the topic of a firmware upgrade for the Prophet 600 has come up, let me point you to this thread over an Anafrog (in french, but Google translate does a half decent job): http://forum.anafrog.com/phpBB/viewtopi ... 0a3129efd8

This project is distinct from what I was working on, but basically supersedes my project. The last couple posts on my blog cover some of the functional details. No MIDI or sequencer/arp functions yet, but all the basic synth functions are implemented. Probably the coolest upgrades so far are different LFO shapes (random!) and mixing oscillator A and B so that the filter can be overdriven.

The author of the project has been quiet for the last couple of weeks, hopefully because he's busy finishing the firmware and about to release a beta!
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Re: Prophet 5 versus Prophet 600

Postby Floss » Sat Mar 23, 2013 1:37 am

oooh, howd you get that panning fluttering FX on the hi-pitched material 1:20sec That track was awesome!
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Re: Prophet 5 versus Prophet 600

Postby GuyaGuy » Sat Mar 23, 2013 5:55 pm

Floss wrote:Ohh... I thouht it was only doing 6. I found somewhere saying when you turn a knob to the right, it uses all 12 or something like that


You can get just 6 with the osc mixer.
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Re: Prophet 5 versus Prophet 600

Postby synthparts » Sun Mar 24, 2013 7:01 am

GuyaGuy wrote:
Floss wrote:Ohh... I thouht it was only doing 6. I found somewhere saying when you turn a knob to the right, it uses all 12 or something like that


You can get just 6 with the osc mixer.


You can also get any number of oscs you want by shutting off individual voices (Record+7)...
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Re: Prophet 5 versus Prophet 600

Postby GuyaGuy » Sun Mar 24, 2013 7:43 am

synthparts wrote:
GuyaGuy wrote:
Floss wrote:Ohh... I thouht it was only doing 6. I found somewhere saying when you turn a knob to the right, it uses all 12 or something like that


You can get just 6 with the osc mixer.


You can also get any number of oscs you want by shutting off individual voices (Record+7)...


Yup, and a legitimate Minimoog-style mono mode, as well as chord memory mode.
We hear a lot about the 600's limitations but it really is a lovely synth.
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Re: Prophet 5 versus Prophet 600

Postby orlando56 » Sun Jun 16, 2013 12:13 am

Take a look at this: https://github.com/gligli/p600fw

It's a CPU (a $30 Teensy++ 2.0 board) and (open-source) firmware upgrade. I did the simple soldering mods to the board, loaded the firmware and installed it on my P600 a couple days ago. Some (but not all) of the improvements:

1) Better resolution of all controls (most importantly, filter cutoff).

2) Faster envelopes (selectable among four choices). They still aren't lightning fast but they are better.

3) Better LFO (selectable among three modes: slow, medium, and fast).

4) More LFO modes, including S&H and noise.

5) The filter envelope control and Poly-Mod filter control are now capable of doing negative envelopes.

6) The oscillator blend control is now the level control for OSC A, with OSC B level controlled by Glide knob (arpeggiator Speed knob now controls glide amount, unless the arpeggiator is being used). The oscillators can now overdrive the filter if they are set above the midway point.

7) Selectable pitch wheel range (minor 3rd, 5th, octave).

8) Mod wheel (or is it pitch wheel?) can now control filter cutoff.

9) MIDI cc control of all parameters.

This is still in beta phase, but thanks to the hard work and generosity of GliGli, we Prophet 600 owners now have a new beast on our hands!
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Re: Prophet 5 versus Prophet 600

Postby GuyaGuy » Sun Jun 16, 2013 4:06 am

:o

Also "Assignable, Random And Up/Down Arpeggiator"

Not sure I understand what controls the arp speed with the mod.
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