tony dB

2150A replacement
« on: June 11, 2004, 07:15:21 AM »
i'm sure we had this topic before,

i have a set of 8 compressors that sound a little dull, compared to a few years ago. Could be that i need to get these units checked as i noticed 2 trimpots on the pcb.

we have compared them 3 years ago next to Distressors and we achieved similar results, to discribe the soundcolor a bit.

when checking the pcb i saw that there are THAT 2150A's used,

can i upgrade without any fix other then replacing the VCA and what would be the BEST upgrade posible?

Thanks

tdB

PS diy by someone who sells them - so sorry no pictures until he aproves this  :sad:


gyraf

2150A replacement
« Reply #1 on: June 11, 2004, 07:46:58 AM »
That2180 should do it:

http://www.technicalaudio.com/pdf/semi_IC/TC-THAT2180Series.pdf

..possibly leave pin4 (dist. trim) non-connected. maybe cut off this before mounting?

Jakob E.
..note to self: don't let Harman run your company..

tony dB

2150A replacement
« Reply #2 on: June 11, 2004, 07:56:45 AM »
Jakob,

thank you for replying and the pdf.

if i would like to put a 2180 in an SSLclone later, would i be missing the leg #4?

gyraf

2150A replacement
« Reply #3 on: June 11, 2004, 08:03:22 AM »
Nope, neither in the clone would you need dist. trim for the 2180.

As you see from the data sheet, pin4 is recommended "NC"
..note to self: don't let Harman run your company..

tony dB

2150A replacement
« Reply #4 on: June 11, 2004, 08:51:55 AM »
cool, i order some rightaway.

ChrisA

2150A replacement
« Reply #5 on: June 11, 2004, 08:47:12 PM »
so which pin is pin 4 exactly on the THAT?

one way of clarifying would be to know if the pin under the side with the indentation on top is pin 1 (input) or pin 8 (output)...


Also, since there is not dist. trim on the sidechain VCA, should it also be disconnected there?

thanks guys,

Chris

tony dB

2150A replacement
« Reply #6 on: June 12, 2004, 02:42:46 PM »
i think it's when you hold the vca with the little cirkel to the lefthandside the 4th leg counting from left.

please anyone, correct me if i'm wrong here!

ChrisA

2150A replacement
« Reply #7 on: June 12, 2004, 04:32:00 PM »
Interesting...I have a bunch of THAT 2180LB's so I tried A/B'ing between having no connection on pin 4 (just cut off the pins on 3 THATs) and swapped between 3 stock ones by just popping them in and out.

heres what I heard:

with no connection on pin 4, it appears to not distort as much if you are really cranking the threshold down, but strangely it sounded smoother to me on more subtle settings with the pins connected....without the pin 4's the unit sounds a bit grittier to me..I went back and forth several times and don't think I'm imagining the difference..

I decided for now that I like the way it sounds better with the pins connected.

sginn

2150A replacement
« Reply #8 on: June 12, 2004, 11:15:05 PM »
So are the THAT2150A's not a very good choice for the SSL Comp?  I have 4 of these, but would rather use something different if there is a better choice.

Thanks,

Steve

tony dB

2150A replacement
« Reply #9 on: June 13, 2004, 03:23:17 PM »
as far as i understand it, you can upgrade any 2150 with 2180's


tony dB

2150A replacement
« Reply #10 on: June 16, 2004, 11:03:48 AM »
just received some stuff from toothpastefordinner.
included there's 5 DBX 2150's.
What's the difference, if any, with THAT 2150's?

tdB

gyraf

2150A replacement
« Reply #11 on: June 16, 2004, 12:13:55 PM »
different company name. dbx sold their chip manufacturing.
..note to self: don't let Harman run your company..

tony dB

2150A replacement
« Reply #12 on: June 16, 2004, 01:04:52 PM »
that is what i was thinking,
thanks Jakob

tony dB

2150A replacement
« Reply #13 on: June 19, 2004, 04:51:12 PM »
just tried them in my compressors and there's a huge difference in top end details!

Toothpastefordinners turned out 2151, is there much difference with the 2150a? Couldn't get it to work, maybe the 2151 are dead, they looked used for a while??

tony dB

2150A replacement
« Reply #14 on: June 24, 2004, 01:11:03 PM »
bump ?


 

Related Topics

  Subject / Started by Replies Last post
9 Replies
5831 Views
Last post August 12, 2004, 12:12:54 PM
by StrayCat
7 Replies
6864 Views
Last post August 23, 2004, 09:49:00 AM
by clintrubber
8 Replies
5595 Views
Last post May 22, 2006, 04:14:39 AM
by gyraf
10 Replies
5416 Views
Last post May 05, 2005, 09:25:45 PM
by CJ