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Re: Xpander Front Panel Cleaning

envia94
 

For cleaning, there is also special computer cleaning spray, which evaporates completely. It is used for cleaning computer keyboards, screens ets., so you'll find it in any computer store.
Re: Xpander Front Panel Cleaning

envia94
 

I have sometimes used a very little amount of silicone spray to make the Xpander shine again. But, be aware not to spray on the unit, but on a smooth cloth with which you then wipe the unit. This is because silicone is the worst enemy of electric connections. An other drawback is that the Xpander gets very slippery, which does not matter however unless you need to move it sometimes. Silicone is very good for the plastic (and, rubber!) parts making them last many times longer than without.

--- In xpantastic@..., "Mel" <rawsax@...> wrote:

Hi,
I'd like to clean up my Xpander's front panel, which has become cloudy with age. It's not scratched, cracked or peeling; just dull. I don't want to take a chance with any petroleum-based products such as ArmorAll. Any ideas how to restore the luster?

Thanks!!

/mel
Xpander Front Panel Cleaning

Mel
 

Hi,
I'd like to clean up my Xpander's front panel, which has become cloudy with age. It's not scratched, cracked or peeling; just dull. I don't want to take a chance with any petroleum-based products such as ArmorAll. Any ideas how to restore the luster?

Thanks!!

/mel
Re: Matrix-12 key wanted

 

I bought mine a couple of years ago.
This is cut out from the mail conversation with Doug:
----------------------------------------------
Yes we do. We have complete keyboard sets, with all the keys mounted to the metal frame to drop in and plug in or we have the individual keys as well. Depending upon how many you need, it may by cheaper in the long run to buy the complete keyboard set.
?
Complete set of keys for Matrix 12 on metal frame???? $75.00
Individual white or black plastic keys?for Matrix 12???? $? 7.50 each

Shipping and handling charges are extra and will be calculated once address is supplied. For USA we ship by Fed Ex Ground or Express, or Priority US Mail, depending upon your delivery time requirements, internationally we have found both Fed Ex and UPS to be extremely expensive, so send most international shipments via Express Mail, Int'l Global Express, Int'l Air Mail, or Int'l surface mail.

Payments can be made via PayPal to:
?
Sincerely,
?
Doug

--------------------------------------------------
rgds
Bjorn Roland


On Tue, Feb 16, 2010 at 10:20 PM, envia94 <tares@...> wrote:
?


Ciao! If you search inside this forum, you'll find that there is a guy, who is selling mechanical parts. He did run out of these. But, maybe he has get some more.
Re: Xpanding my horizon

 

Terje Winther wrote:
Hi all,
I just subscribed to this groups, and thought I might introduce myself.
I have loved synthesizers for as long as I can remember (all the way back into the 1970s...). I make music with synths, repair them, and even build some. The Xpander and Matrix-12 are facinating instruments, and I have just gotten a Matrix-12 in for service, so finally I can take the time to learn more about these instruments. It has all the usual errors; one key broken, one rotary encoder mailfunctoning, auto- tune turns out the usual errors, but apart form that is seems to be mostly in order.
More about me, my music, gear and all that at:
Hi Terje,

Welcome to the group. Listmates, I play Terje's music on my radio shows. I recommend that you take a listen to his music.

Cheers,

Bill
Matrix-12 key wanted

mursupeppe
 

Hi, if anybody's willing to part with one of their Matrix-12 keyboard keys (or identical), I'm missing an A key. I know, I know, google and search... :-)
Re: Xpanding my horizon

Terje Winther
 

Hi all,
Thanks a lot for the warm welcome.

Welcome to the group.? Watch out, you might get hooked, and have to acquire one?for yourself.

Yes, I am afraid that is going to happen.
We?ll see. I start working on it the coming Monday, as soon as I have read through all the excellent tips on this group.


Terje Winther
Re: Xpanding my horizon

 

Hi Terje,
Welcome to the group.? Watch out, you might get hooked, and have to acquire one?for yourself.
?
You will find posts here on all the fails you mention.
Encoder? - Clean or replace Schmidt trigger chip connected to the failed encoder
Tune Fail - Coupling Caps Usually Cx49? x = channel #
?
I have fixed quite a few of these. I am happy to offer?any help.
Have Fun!
?
Kindest Regards
?
Karl Schmeer
?


--- On Thu, 2/11/10, Terje Winther wrote:

From: Terje Winther <terje.winther@...>
Subject: [xpantastic] Xpanding my horizon
To: xpantastic@...
Date: Thursday, February 11, 2010, 7:19 AM

?
Hi all,
I just subscribed to this groups, and thought I might introduce myself.
I have loved synthesizers for as long as I can remember (all the way
back into the 1970s...). I make music with synths, repair them, and
even build some. The Xpander and Matrix-12 are facinating instruments,
and I have just gotten a Matrix-12 in for service, so finally I can
take the time to learn more about these instruments. It has all the
usual errors; one key broken, one rotary encoder mailfunctoning, auto-
tune turns out the usual errors, but apart form that is seems to be
mostly in order.
More about me, my music, gear and all that at:

Terje Winther
Re: Someone to verify my Xpander is working properly

envia94
 

Hi Jeremy,

Check if The_Definitive_Xpander_Filter_ Guide in
can enlighten the problem.

Generally speaking, it would be somewhat welcome, if somebody would make the effort and record some or more of Xpander default patches. Currently they are undisclosed - which, I must admit, may even be amplifying the halo of Oberheim occultism around Xpander.

Cheerio
Someone to verify my Xpander is working properly

 

If I record a simple tune with a default patch, could someone play the same tune on their Xpander and tell me if mine *sounds* right? I'm worried that since the fuse blew in 2004, the sound isn't as deep and rich as it should be.

Thanks,

Jeremy
Re: Xpanding my horizon

envia94
 

Hello Terje, let me just welcome you!

There are a lot of interesting listening in your web page (). Thanks!

I hope you'll also find some interesting things about Xpander/M12 in our Files and Photos sections especially:





Tiitu
Xpanding my horizon

Terje Winther
 

Hi all,
I just subscribed to this groups, and thought I might introduce myself.
I have loved synthesizers for as long as I can remember (all the way back into the 1970s...). I make music with synths, repair them, and even build some. The Xpander and Matrix-12 are facinating instruments, and I have just gotten a Matrix-12 in for service, so finally I can take the time to learn more about these instruments. It has all the usual errors; one key broken, one rotary encoder mailfunctoning, auto- tune turns out the usual errors, but apart form that is seems to be mostly in order.
More about me, my music, gear and all that at:


Terje Winther
terje.winther@...
Re: CEM 3374

John Pallister
 

On Wed, Jan 13, 2010 at 10:05 PM, Tony Cappellini <cappy2112@...> wrote:
Look on Ebay for a vendor named ChipsForBrains- he was selling CEM's last year
?
He has 3372s, but I haven't seen him selling 3374s. Or we'd all be buying them...

Cheers,

John :^P
Re: CEM 3374

John Pallister
 

On Wed, Jan 13, 2010 at 9:22 PM, schmuckfenster
<schmuckfenster@...> wrote:
To be honest, I also ask myself what actually does 'fail' in such a chip? Is it a
physical 'burning' through or just a contact that is lost? No way of trying to repair
the chip itself?
As I understand it, it's a weakness of the fabrication process used to
make the chips. Basically the analogue components etched onto the
silicon deteriorate over time (due to e.g.
) and drift from their
original values. Eventually they drift so far that the auto-tune
mechanism can't vary other component values far enough to compensate.

A bit like CDs & DVDs - they were supposed to last "indefinitely", but
after a decade or three they're not quite what they once were.

I have seen people using small microcontrollers to emulate failed
custom digital chips in old gear; I would expect that, eventually,
people will use small DSPs to emulate failed CEM chips in vintage
synths. In fact, there's probably a business opportunity there for
someone already.

Cheers,

John :^P
Re: Xpander vs. M12

 

Yes, this is one annoying omission on the xpander, but easily resolved like you said with the multi-patch. The simple brilliance of this feature was only something I just realized. I tend to let my VCOs drift out of tune for a more organic sound, but I realized this would never be like the OB-Xa for example.
In deciding to sell the OBxa, I decided to see how similar the xpander/obxa could really be. I set up a multi-patch and changed the osc tunings ever so slightly for each of the 6 voices, and the result was a very pleasing and animated sound. The ability to change the basic parameters of all 6 voices at once (or individually) from the single page is pure genius... I'm sure most of you know this, but it was very satisfying figuring out the feature. Shame you can't also change the modulation parameters as a group, but I guess there's only so much that CPU could do.

Right, but there&#65533;s difference between M12 and Xpander,- layering all
the voices (or only 6 maybe) in unison,- the detune page, which the Xpander
doesn&#65533;t have.
It&#65533;s only a detail, but also a small advantage, being able to select the
same single patch in every multi-patch slot, setting the voice assignment to
unison and easily detune all the voices against each other.

THIS is not possible w/ a Xpander,- instead, you have to copy the same
single patch to six single-patch memory locations, edit each of these for
different tunings and store, before you&#65533;re able to set up a
multi-patch-unison-detune sound the way you can do in a M12.
Will say,- you lose 5 more single-patch memory locations in the Xpander to
do this, but not in the Matrix-12.
Re: Xpander vs. M12

 


--- On Thu, 1/14/10, PeWe wrote:


From: PeWe
Subject: Re: [xpantastic] Xpander vs. M12
To: xpantastic@...
Date: Thursday, January 14, 2010, 4:06 AM


?




>Hello Karl !


Hey PeWe !


>>>

?
>Right, but there?s difference between M12 and Xpander,-? layering all the >voices (or only 6 maybe) in unison,- the detune page, which the Xpander >doesn?t have.
>It?s only a detail, but also a small advantage, being able to select the >same single patch in every multi-patch slot, setting the voice assignment >to unison and easily detune all the voices against each other.

Yes, your right,?You can really explore tuning relationships between sounds here.
Big +?

>B.t.w.,- I never layer the voices that way w/ my Xpander,- so I don?t care.

You know, I use multi alot and sometimes notice a differences between patches played in single and multi mode. Especially LFO and Env rates.
You, or?anyone ever noticed this?

>Voice cancelations are always happening by layering exactly same sounds >and >detuneing ?em,- so I prefer layering of slightly different sounds,-
Good Idea, Different waveform?could not cancel each other out completely.

>best different synths,- even these do similar sounding patches then, - >lets say creating a super saw,- together.
Yes


>In addition, Obies keyboard synths are relatively large beasts.
>I never toured w/ a Matrix-12, but I got probs w/ the stiffness of the enclosure of my >former OB-8 in the past,- maybe a prob which also happens w/ a Matrix-12.
>With the OB-8, this stressed the circuit boards mounted on the bottom of >the case.

You have hit on an important point here!!
NEVER PUSH REAL HARD ON?A MATRIX 12 FRONT PANEL. My appologies for shouting but:
The High voltage of the VFD board gets pushed into the upper voice board and will fry the upper voice board.
?
It would not be a bad Idea to put an electrical insulator of some sort, on the back of the VFD board.
??
Karl Schmeer
??
Re: Xpander vs. M12

 


--- On Thu, 1/14/10, swisstony123456789 wrote:


From: swisstony123456789
Subject: [xpantastic] Re: Xpander vs. M12
To: xpantastic@...
Date: Thursday, January 14, 2010, 5:51 AM


?





--- In xpantastic@yahoogro ups.com, Karl Schmeer wrote:
>
> Hi,
>> I have a M12 and believe it or not, there are times I wish I had an Xpander. It would be >>nice sometimes to have the CV ins and the output per voice. (Currently my M12 does >>not have the individual outputs.)????

>Interested in a swap??
Nahh,? But thanks for asking.?
?
All though, If the dough?and opportunity came along, I would get an Xpander.
?
Karl Schmeer?
Re: Xpander vs. M12

 


--- On Thu, 1/14/10, Mark Morton <marmorton@...> wrote:

>From: Mark Morton
>Subject: Re: [xpantastic] Xpander vs. M12
>To: xpantastic@...
>Date: Thursday, January 14, 2010, 4:42 AM

>Having owned a M12 for over a decade and a polyevolver for 3 years, I disagree with the >statement that the polyevolver keyboard is "just as clunky". Can't speak to the A6.
Yeah, I'll give you that, the DSI keyboard?is the best of the bunch. Key rattle just bugs me.
?
You just gave me an idea.?I think I will put a piece of felt inside the case above the keys on the M12 and see if that helps. I have seen this on other keyboards.?????
??
>Specifically, keydepth on the polyevolver is noticeably deeper and more satisfactory. In all
>cases the SOUND of the M12 is superior however but it is the worst keyboard depth I >have experienced. Although some of ?the arp synths, like the Quadra were close. YMMV.
I really dislike the keyboard too.?The only good thing I could say is, the pressure mod works great.?This is a good argument for the Xpander. ?
?
Karl Schmeer?
?
?


?
Re: Xpander vs. M12

 

The modulation page looks like:
?
MOD??????? SOURCE???? AMOUNT?????? DEST
4????????????? LEV1?????????? +57??????????????? VCF FREQ
?
You can adjust the AMOUNT and DESTwith the encoders, similar to setting mods in a matrix-6.? You clear a mod routing by pressing the SOURCE and the CLEAR button at the same time (I wonder, how do you do it in an Xpander?).? I always use this page to see what the mods are and how many I've got left, hard for me to imagine not having it.
?
For me, polyphony/multitimrality are very important which is?mainly why I chose the M12.? I do lots of sequencing and often use several mono voices and one or two polyphonic voices simultaneously? That usually eats up most or all of my M12 voices.???I also like to double up mono voices, one each panned on separate left/right channels on my mixerboard.? Gives a very?nice "no effects" stereo sound... but eats voices.
?
I've wished from time to time that my M12 had the CV options.? Had a pro-one once?that I could have midi'ed...
?
I modded my M12 to have the ind outs.? If that weren't possible, I'd have gone with an Xpander (or two!).?? Ind outs are very?important to me too.
?
Of course anyone is lucky to have either of these...
?
?

--- On Thu, 1/14/10, mattvrazo wrote:

From: mattvrazo
Subject: [xpantastic] Re: Xpander vs. M12
To: xpantastic@...
Date: Thursday, January 14, 2010, 1:25 PM

?
Good answers all 'round... I think I am probably satisfied with the xpander as it is, short of a few drops notes on long chords occasionally (8 voices would be perfect!) I never use the CV/gate or multi-outs, but definitely prefer having them over not. (as I would definitely have to sell the xpander to fund the m12)

One thing I haven't figured out: What does the mod-matrix page look like on the M12? Is it just a seperate page showing the routings of everything? I have never seen a picture of it.


Re: Xpander vs. M12

 

Good answers all 'round... I think I am probably satisfied with the xpander as it is, short of a few drops notes on long chords occasionally (8 voices would be perfect!) I never use the CV/gate or multi-outs, but definitely prefer having them over not. (as I would definitely have to sell the xpander to fund the m12)

One thing I haven't figured out: What does the mod-matrix page look like on the M12? Is it just a seperate page showing the routings of everything? I have never seen a picture of it.
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