Doepfer

i've been looking over the other comments on the a135-2. several voices have made very 
good arguments for band pass instead of low pass filters. however, the advantage of low 
pass filters in this context is that when they're open, they're off, so to speak.

i think if i were planning to send a few drum sounds through the thing, i'd also be hoping 
for bpf's. but i sometimes find myself mangling vocals, guitars, drum machines and even a 
synth (!) at the same time, for which the a135-2 would be a godsend, but i'd want to have 
the option of no filter effect.

and now i'll shut up and leave some bandwidth for somebody else. promise.

stu

you are right. a mode switch would be ideal. or two differently designed
filters for two different purposes in 2 different modules.
Personally, in this modern world of modulars i expect an LPF to have a
certain amount of character, at least more than a BPF. So i would probably
ry and avoid the LPF here, the BPF is more a tool but it should bypass-able
in this application--agreed.
i think we need very similar or  two modules here or a switch.... different
filter designs for each would be my pref.

On 5/25/07 4:17 AM, "Stu Grimshaw" <grimshaw@stugrimshaw.com> wrote:

> i've been looking over the other comments on the a135-2. several voices have
> made very 
> good arguments for band pass instead of low pass filters. however, the
> advantage of low 
> pass filters in this context is that when they're open, they're off, so to
> speak.
> 
> i think if i were planning to send a few drum sounds through the thing, i'd
> also be hoping 
> for bpf's. but i sometimes find myself mangling vocals, guitars, drum machines
> and even a 
> synth (!) at the same time, for which the a135-2 would be a godsend, but i'd
> want to have 
> the option of no filter effect.
> 
> and now i'll shut up and leave some bandwidth for somebody else. promise.
> 
> stu
>

> you are right. a mode switch would be ideal. or two differently designed
> filters for two different purposes in 2 different modules.
> Personally, in this modern world of modulars i expect an LPF to have a
> certain amount of character, at least more than a BPF. So i would probably
> ry and avoid the LPF here, the BPF is more a tool but it should
> bypass-able
> in this application--agreed.
> i think we need very similar or  two modules here or a switch....
> different
> filter designs for each would be my pref.

In the meantime we developed a different (more modular) conception of the
filter/mixer/panner with separate sub-modules for the main module (voltage
controlled low pass, VCA, panning unit, mute switch, CV inputs for F/A/P), a
filter converter module, an output module and a CV input expansion module.
The filter converter can be used to add more filter types. For the prototype
we have 16 different filters available which are a sub-set of the A-107
filters. The filter is chosen with a 16-position rotary switch. In addition
a bypass switch (VCF bypass) and a VCF output socket (pre VCA/Panning) are
available.

I publish details (including front panel pictures) in the course of this
week.

Best wishes
Dieter Doepfer

> you are right. a mode switch would be ideal. or two differently designed
> filters for two different purposes in 2 different modules.
> Personally, in this modern world of modulars i expect an LPF to have a
> certain amount of character, at least more than a BPF. So i would probably
> ry and avoid the LPF here, the BPF is more a tool but it should
> bypass-able
> in this application--agreed.
> i think we need very similar or  two modules here or a switch....
> different
> filter designs for each would be my pref.

The new "modular" suggestion of the A-135-2 is now available on the A-135-2
page of our website.

I also added different versions of the precision adder module. Bakis, a poll
which of the versions the users prefer would be useful. Production could
start as soon as the poll is closed and the results are clear.

Best wishes
Dieter Doepfer

hello Dieter,
please, tell me the link for the precision adder
webpage, i do not find it anywhere.
also, should i make a poll about the 3 different
versions of the 135-2 and, also, another poll for the
different versions of the precision adder module?
best regards,
Bakis.



--- hardware@doepfer.de wrote:

> > you are right. a mode switch would be ideal. or
> two differently designed
> > filters for two different purposes in 2 different
> modules.
> > Personally, in this modern world of modulars i
> expect an LPF to have a
> > certain amount of character, at least more than a
> BPF. So i would probably
> > ry and avoid the LPF here, the BPF is more a tool
> but it should
> > bypass-able
> > in this application--agreed.
> > i think we need very similar or  two modules here
> or a switch....
> > different
> > filter designs for each would be my pref.
> 
> The new "modular" suggestion of the A-135-2 is now
> available on the A-135-2
> page of our website.
> 
> I also added different versions of the precision
> adder module. Bakis, a poll
> which of the versions the users prefer would be
> useful. Production could
> start as soon as the poll is closed and the results
> are clear.
> 
> Best wishes
> Dieter Doepfer
> 
> 


Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
[Doepfer_a100] group owner
http://www.parallel-worlds-music.com
http://www.myspace.com/parallelworldsmusic
http://www.myspace.com/interconnectedmusic
http://www.myspace.com/memorygeist
http://www.DiN.org.uk
http://www.shimarecords.co.uk
http://www.rubber.gr
Athens-Greece


       
____________________________________________________________________________________Building a website is a piece of cake. Yahoo! Small Business gives you all the tools to get online.
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On 5/29/07 1:18 AM, "hardware@doepfer.de" <hardware@doepfer.de> wrote:

> In the meantime we developed a different (more modular) conception of the
> filter/mixer/panner with separate sub-modules for the main module (voltage
> controlled low pass, VCA, panning unit, mute switch, CV inputs for F/A/P), a
> filter converter module, an output module and a CV input expansion module.
> The filter converter can be used to add more filter types. For the prototype
> we have 16 different filters available which are a sub-set of the A-107
> filters. The filter is chosen with a 16-position rotary switch. In addition
> a bypass switch (VCF bypass) and a VCF output socket (pre VCA/Panning) are
> available.


nice!  but what filters are we choosing from? original designs? the old
roland/CGS clone by Ken Stone is what I had in mind when I said bandpass
would be nice. Version 1 or 2 might be nice but would like a simple BP/LP
switch if possible, does V.3 use the same CEM as the 107 and Xpander?  I'm
personally not that fond of that filter, and sold my Xpander and 107.  It's
not bad and may be fine here, just didn't have much character in my opinion.
Personally, making it all vactrol would be ideal! heh! or at least based on
the 101-2 for the filter.

Just trying to compare what we are voting on, still, this seems like a
module that would be tought satisfy most of us with in a modular. So either
make it modular or keep it very simple-- i kinda like the simplicity of V.1
if a lp/bp switch were added. But for the features... right now I'll choose
V.2, but will again ask for a BP/LP option. Maybe it would be clearer with
the jacks moved to the side for each section and add the mode in line with
the knobs and the level pot & mute switch at the top of each section? I
think that would be great and more usable regardless. An LED to indicate
"mute" would be very useful!

best,
phil

Precision adder : a185-2


http://www.doepfer.de/a1852


here you go...


Alexandre


--- In Doepfer_a100@yahoogroups.com, Bakis Sirros <synth_freak_2000@...> wrote:
>
> hello Dieter,
> please, tell me the link for the precision adder
> webpage, i do not find it anywhere.
> also, should i make a poll about the 3 different
> versions of the 135-2 and, also, another poll for the
> different versions of the precision adder module?
> best regards,
> Bakis.
> 
> 
> 
> --- hardware@... wrote:
> 
> > > you are right. a mode switch would be ideal. or
> > two differently designed
> > > filters for two different purposes in 2 different
> > modules.
> > > Personally, in this modern world of modulars i
> > expect an LPF to have a
> > > certain amount of character, at least more than a
> > BPF. So i would probably
> > > ry and avoid the LPF here, the BPF is more a tool
> > but it should
> > > bypass-able
> > > in this application--agreed.
> > > i think we need very similar or  two modules here
> > or a switch....
> > > different
> > > filter designs for each would be my pref.
> > 
> > The new "modular" suggestion of the A-135-2 is now
> > available on the A-135-2
> > page of our website.
> > 
> > I also added different versions of the precision
> > adder module. Bakis, a poll
> > which of the versions the users prefer would be
> > useful. Production could
> > start as soon as the poll is closed and the results
> > are clear.
> > 
> > Best wishes
> > Dieter Doepfer
> > 
> > 
> 
> 
> Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
> [Doepfer_a100] group owner
> http://www.parallel-worlds-music.com
> http://www.myspace.com/parallelworldsmusic
> http://www.myspace.com/interconnectedmusic
> http://www.myspace.com/memorygeist
> http://www.DiN.org.uk
> http://www.shimarecords.co.uk
> http://www.rubber.gr
> Athens-Greece
> 
> 
>        
> 
____________________________________________________________________________________Buil
ding a website is a piece of cake. Yahoo! Small Business gives you all the tools to get 
online.
> http://smallbusiness.yahoo.com/webhosting
>

thanks.
but where's version 2?
best regards,
Bakis.


--- bellenger_a <bellenger_a@yahoo.fr> wrote:

> Precision adder : a185-2
> 
> 
> http://www.doepfer.de/a1852
> 
> 
> here you go...
> 
> 
> Alexandre
> 
> 
> --- In Doepfer_a100@yahoogroups.com, Bakis Sirros
> <synth_freak_2000@...> wrote:
> >
> > hello Dieter,
> > please, tell me the link for the precision adder
> > webpage, i do not find it anywhere.
> > also, should i make a poll about the 3 different
> > versions of the 135-2 and, also, another poll for
> the
> > different versions of the precision adder module?
> > best regards,
> > Bakis.
> > 
> > 
> > 
> > --- hardware@... wrote:
> > 
> > > > you are right. a mode switch would be ideal.
> or
> > > two differently designed
> > > > filters for two different purposes in 2
> different
> > > modules.
> > > > Personally, in this modern world of modulars i
> > > expect an LPF to have a
> > > > certain amount of character, at least more
> than a
> > > BPF. So i would probably
> > > > ry and avoid the LPF here, the BPF is more a
> tool
> > > but it should
> > > > bypass-able
> > > > in this application--agreed.
> > > > i think we need very similar or  two modules
> here
> > > or a switch....
> > > > different
> > > > filter designs for each would be my pref.
> > > 
> > > The new "modular" suggestion of the A-135-2 is
> now
> > > available on the A-135-2
> > > page of our website.
> > > 
> > > I also added different versions of the precision
> > > adder module. Bakis, a poll
> > > which of the versions the users prefer would be
> > > useful. Production could
> > > start as soon as the poll is closed and the
> results
> > > are clear.
> > > 
> > > Best wishes
> > > Dieter Doepfer
> > > 
> > > 
> > 
> > 
> > Bakis Sirros - Parallel Worlds / Interconnected /
> Memory Geist
> > [Doepfer_a100] group owner
> > http://www.parallel-worlds-music.com
> > http://www.myspace.com/parallelworldsmusic
> > http://www.myspace.com/interconnectedmusic
> > http://www.myspace.com/memorygeist
> > http://www.DiN.org.uk
> > http://www.shimarecords.co.uk
> > http://www.rubber.gr
> > Athens-Greece
> > 
> > 
> >        
> > 
>
____________________________________________________________________________________Buil
> ding a website is a piece of cake. Yahoo! Small
> Business gives you all the tools to get 
> online.
> > http://smallbusiness.yahoo.com/webhosting
> >
> 
> 


Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
[Doepfer_a100] group owner
http://www.parallel-worlds-music.com
http://www.myspace.com/parallelworldsmusic
http://www.myspace.com/interconnectedmusic
http://www.myspace.com/memorygeist
http://www.DiN.org.uk
http://www.shimarecords.co.uk
http://www.rubber.gr
Athens-Greece


 
____________________________________________________________________________________
Don't get soaked.  Take a quick peak at the forecast
with the Yahoo! Search weather shortcut.
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Hello Bakis,

this is the URL: www.doepfer.de/a1852.htm

Best wishes
Dieter

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von Bakis Sirros
> Gesendet: Dienstag, 29. Mai 2007 20:13
> An: Doepfer_a100@yahoogroups.com
> Betreff: Re: AW: [Doepfer_a100] a135-2: the filters
>
>
> hello Dieter,
> please, tell me the link for the precision adder
> webpage, i do not find it anywhere.
> also, should i make a poll about the 3 different
> versions of the 135-2 and, also, another poll for the
> different versions of the precision adder module?
> best regards,
> Bakis.

ok, poll is done!

PLEASE VOTE EVERYONE!!

best regards,
Bakis.


--- hardware@doepfer.de wrote:

> Hello Bakis,
> 
> this is the URL: www.doepfer.de/a1852.htm
> 
> Best wishes
> Dieter
> 
> 
> > -----Urspr?he Nachricht-----
> > Von: Doepfer_a100@yahoogroups.com
> > [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag
> von Bakis Sirros
> > Gesendet: Dienstag, 29. Mai 2007 20:13
> > An: Doepfer_a100@yahoogroups.com
> > Betreff: Re: AW: [Doepfer_a100] a135-2: the
> filters
> >
> >
> > hello Dieter,
> > please, tell me the link for the precision adder
> > webpage, i do not find it anywhere.
> > also, should i make a poll about the 3 different
> > versions of the 135-2 and, also, another poll for
> the
> > different versions of the precision adder module?
> > best regards,
> > Bakis.
> 
> 


Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
[Doepfer_a100] group owner
http://www.parallel-worlds-music.com
http://www.myspace.com/parallelworldsmusic
http://www.myspace.com/interconnectedmusic
http://www.myspace.com/memorygeist
http://www.DiN.org.uk
http://www.shimarecords.co.uk
http://www.rubber.gr
Athens-Greece


       
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