[sdiy] Boss PC-2, JoMoX XBase-09

Rob cyborgzero at home.com
Tue Mar 13 02:13:47 CET 2001


----- Original Message -----
From: "Colin Fraser" <colinf at ntlworld.com>
To: "'Rob'" <cyborgzero at home.com>; <synth-diy at node12b53.a2000.nl>
Sent: Monday, March 12, 2001 7:59 PM
Subject: RE: [sdiy] Boss PC-2, JoMoX XBase-09


> > -----Original Message-----
> > From: owner-synth-diy at node12b53.a2000.nl
> > [mailto:owner-synth-diy at node12b53.a2000.nl]On Behalf Of Rob
> > Sent: 13 March 2001 00:02
> > To: Trevor Page; Drew Smith; synth-diy at node12b53.a2000.nl
> > Subject: Re: [sdiy] Boss PC-2, JoMoX XBase-09
> >
> > AFAIK, the jomox is #not# a true 909, but rather a hybrid
> > element of a 909
> > and 808.
>
> The xbase is much more 909 IMO.
> It's a vco based sound rather than a resonant twin-t sound.
> This is the main source of difference between the 808 and 909.

Oh, I am *sure* of that, because its much harder to get stable tuning with a
twin-T network when you start messing with the huge amounts of decay and
such. . It wouldn't make sense otherwise. ;)

>
> > Lets all be honest, the 909 kick unmodded is pretty boring
> > actually.. It *really* needs to be allowed to have more gain
> > to distort,
> > more decay, a few more knobs, 808-like tuning, etc etc to be
> > really hairy
> > sounding.. A 909 kick all by itself is IMHO not as good as an
> > 808, and a
> > properly modded 808 circuit *can* sound like a 909 if modded properly.
>
> The 808 and 909 bass drums are totally different.
> While you might get one to sound like the other at certain settings, their
> overall sets of sounds cover different areas.
>
> There's only a few quids/bucks worth of components in them.
> It is your *duty* to clone them ;-)

HHAHA!! Yeah, no kidding! Its hardly worth talking about for the amount of
work and money involved, since its negligible. ;)
Hell, build em both! ;))

I told Drew I would just build him up a 909 kik board and give him the
schemes for it for nothing and he can figure it out on his own time from
there.. (working at RCA has its benefits, like cheap parts)

>
> The 909 bass only needs a couple of extra pots and a caps added to give
> super long decay, enhanced 'tune' thump, wide range vco tuning and
> distortion.

I agree, and the 909 is a more stable core to do it with.. But, out of the
box, I still like the 808 better. ;)

Rob





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