THAT2252 and THAT2180

[randall]

Archived from groups: rec.audio.pro (More info?)

Anyone know how to obtain a pair of each? I want to try the upgrade to
the Alesis 3630.

Please don't trash me for admitting to wanting to try to make this piece
perform better. I have my reasons. I posted over at another live audio
newsgroup and have had all the unsolicited, self-important opinions I
can stand for a while, thanks.

Randall

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

In article <416705AF.3090704@gwi.net>, Randall <randall@gwi.net> wrote:
>Anyone know how to obtain a pair of each? I want to try the upgrade to
>the Alesis 3630.

Call THAT. I don't think they'll sell the things retail, and I know
Digi-Key won't, but I bet that THAT will have a retail outfit listed on
their web site.

>Please don't trash me for admitting to wanting to try to make this piece
>perform better. I have my reasons. I posted over at another live audio
>newsgroup and have had all the unsolicited, self-important opinions I
>can stand for a while, thanks.

Let me know how it goes. I tried to work on the thing and gave up, but
that doesn't mean you should. Your first job, though, is to get clean
power supply rails everywhere, and that was a big stumbling block. There
is not anywhere near enough decoupling in there.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

Like Scott suggests, talk to THAT, but also check with the DIY bunch at
http/www.prodigy-pro.com/forum/ Check out the "BlackMarket" section.
There have been folks selling these vcas and there is a wealth of mod and
upgrade info.
Karl

 

[mark]

Archived from groups: rec.audio.pro (More info?)

"JUDY AND KARL" <TORORECORDS@terra.es> wrote in message news:<2spu3iF1o0oq6U1@uni-berlin.de>...
> Like Scott suggests, talk to THAT, but also check with the DIY bunch at
> http/www.prodigy-pro.com/forum/ Check out the "BlackMarket" section.
> There have been folks selling these vcas and there is a wealth of mod and
> upgrade info.
> Karl

I'd be curious what changes you make.

I modified an Audio Logic MT66. I found most of the issues to be in
the control signal filtering, it had two poles of filtering adding too
much delay so there were bad overshoots in the volumne control (not
overshoots in the audio response).

The trick is to use single pole filtering in the contol voltage
filter. Any substantial second pole and the control voltage will
overshoot at the leading edge of step volumne increases at the input,
otherwise know as pumping.

Mark

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

In article <2spu3iF1o0oq6U1@uni-berlin.de>, "JUDY AND KARL"
<TORORECORDS@terra.es> wrote:

> Like Scott suggests, talk to THAT, but also check with the DIY bunch at
> http/www.prodigy-pro.com/forum/ Check out the "BlackMarket" section.
> There have been folks selling these vcas and there is a wealth of mod and
> upgrade info.
> Karl

The link above will help out. For those interested in dealing with THAT
directly, the minimum order is 25 pieces. Here's some further information
from their sales department:

Thanks for your interest in THAT Corporation's products.

Please note, however, that our minimum order quantity is one tube of parts.

Below, I've constructed a table which indicates our part number, minimum
order quantity (MOQ), along with pricing for less than 100 pieces for each
part you are interested in. (The next price break is at 100 pieces). All
prices are shown in US DOLLARS.

Part MOQ Price
2150A 25 $4.20 each
2180LA 25 $7.44
2180LB 25 $4.60
2180LC 25 $3.84
2181LA 25 $7.32
2181LB 25 $4.48
2181LC 25 $3.72

Although we are the sole distributor for our own products within the USA,
I've heard there are other smaller (unauthorized) companies who may carry
some of our parts. The names of these companies are unknown to me, but
you may be able to find some information by searching the web.

If you would like to place an order for one tube of parts, please feel
free to contact me to place your order, and to inquire about current lead
times. We do accept Mastercard and Visa, and would simply require the
cardholder name, number and expiration date. If you would feel more
secure faxing your order to me with credit card information, please use
the number shown at the bottom.    

We also will ship your order COD via UPS. Please note there is an
additional charge by UPS to use this service of $7.00.

--
Jedd Haas - Artist
http/www.gallerytungsten.com
http/www.epsno.com

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

jnh@epsno.com (Jedd Haas) wrote in
news:jnh-0910041017270001@192.168.0.100:

>
> Thanks for your interest in THAT Corporation's products.
>
> Although we are the sole distributor for our own products within the
> USA, I've heard there are other smaller (unauthorized) companies who
> may carry some of our parts. The names of these companies are
> unknown to me, but you may be able to find some information by
> searching the web.

How's that mic preamp chip (SSM2017 clone) coming on ?
Any chance of it seeing the light of day in the forseeable future ?
cheers
M

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

Mike Diack <moby@kcbbs.gen.middleearth> wrote:
>
>How's that mic preamp chip (SSM2017 clone) coming on ?

I think it is on the back burner if it has not been shelved.

>Any chance of it seeing the light of day in the forseeable future ?

I will rag on them at the AES show about it again, but at this point
Burr-Brown now has an SSM2017 replacement, so their motivation to get
this thing out the door is that much smaller.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

kludge@panix.com (Scott Dorsey) wrote in message news:<ckbber$i8a$1@panix2.panix.com>...
> ...but at this point
> Burr-Brown now has an SSM2017 replacement, so their motivation to get
> this thing out the door is that much smaller.
> --scott

Scott,
Do you know the replacement part number? Also, do you know if it's
supposed to be much of an improvement over the original SSM2017? The
reason I ask is because I have a dead dbx 760-x mic preamp that I
bought for next to nothing just to see if I could fix it. However I
read an old post by Monte McGuire where he was saying it was an
inferior component when compared to the chip used in the Symetrix
SX-202. Do you think the newer version of the SSM2017 is worth trying
if I'm already planning on working on my 760-x? Thank you in advance
for any suggestions.

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

thepaulthomas@hotmail.com (ThePaulThomas) wrote in message news:<f290bcd4.0410102245.4b549799@posting.google.com>...
> kludge@panix.com (Scott Dorsey) wrote in message >
> Thank you Scott. I did a quick search and I think its' the INA-163:
>
> http/focus.ti.com/lit/ds/symlink/ina163.pdf
>
> Since I'll be inside the dbx unit anyway I'll try your suggestion and
> put in some sockets. It would be good to compare one channel with the
> new chip and one with the old chip. I'll let you know what happens
> once I can find time to work on this project.


From looking at the datasheet it seems that the INA-163 is only
available in a small outline package.

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

thepaulthomas@hotmail.com (ThePaulThomas) wrote in message news:<f290bcd4.0410102245.4b549799@posting.google.com>...

>
> Thank you Scott. I did a quick search and I think its' the INA-163:
>
> http/focus.ti.com/lit/ds/symlink/ina163.pdf
>
> Since I'll be inside the dbx unit anyway I'll try your suggestion and
> put in some sockets. It would be good to compare one channel with the
> new chip and one with the old chip. I'll let you know what happens
> once I can find time to work on this project.



I just found the INA217 in a DIP 8 which looks to be the same as the
163 at first glance.

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

sudar@web.de (Lukacs Sudar) wrote in message news:<68934448.0410110413.297d5d5d@posting.google.com>...
> Hi
> I think you're wrong! is it not the INA217
>
> http/focus.ti.com/lit/ds/symlink/ina217.pdf
>
> hope that helps
> Lukacs Sudar

Thank you!

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

"JUDY AND KARL" <TORORECORDS@terra.es> wrote in message news:<2spu3iF1o0oq6U1@uni-berlin.de>...
> Like Scott suggests, talk to THAT, but also check with the DIY bunch at
> http/www.prodigy-pro.com/forum/ Check out the "BlackMarket" section.
> There have been folks selling these vcas and there is a wealth of mod and
> upgrade info.
> Karl

I'd be curious what changes you make.

I modified an Audio Logic MT66. I found most of the issues to be in
the control signal filtering, it had two poles of filtering adding too
much delay so there were bad overshoots in the volumne control (not
overshoots in the audio response).

The trick is to use single pole filtering in the contol voltage
filter. Any substantial second pole and the control voltage will
overshoot at the leading edge of step volumne increases at the input,
otherwise know as pumping.

Mark

Hi,
I just bought an Audio Logic MT 66 Compressor myself, and after sending the money I read how it must be the worst 19" rack compressor ever marketed. I wonder how exactly you did the mods?
I know from modding my Studio Projects VTB-1 micpreamp that a lot can me done to improve crappy gear.

I am no expert so use lots of details. =)

Best Regards,
Joni