Speakerplans.com Homepage
Forum Home Forum Home > General > Amp Forum
  New Posts New Posts RSS Feed - matrix amp ID
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

matrix amp ID
 Post Reply Post Reply Page  12>
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
billso View Drop Down
Young Croc
Young Croc
Avatar

Joined: 03 February 2008
Location: town
Status: Offline
Points: 620 		Post Options Post Options   Thanks (0) Thanks(0)   Quote billso Quote  Post ReplyReply Direct Link To This Post Topic: matrix amp ID
    Posted: 25 November 2020 at 5:19pm
Hi does anyone know the model of this amplifier ? I believe it is an STR but if so how can i tell what model it is ?
Back to Top
njw View Drop Down
Old Croc
Old Croc
Avatar

Joined: 26 March 2010
Location: S. Wales
Status: Offline
Points: 2574 		Post Options Post Options   Thanks (0) Thanks(0)   Quote njw Quote  Post ReplyReply Direct Link To This Post Posted: 25 November 2020 at 6:10pm
 I'd say that's an STR 3000, the 2400 used the same size toroid but I'm sure it didn't have a full compliment of mosfets like that one, only the 3000 had every available 'fet space filled from memory.
Back to Top
M4trix View Drop Down
Registered User
Registered User
Avatar

Joined: 23 June 2009
Location: Croatia
Status: Offline
Points: 445 		Post Options Post Options   Thanks (0) Thanks(0)   Quote M4trix Quote  Post ReplyReply Direct Link To This Post Posted: 25 November 2020 at 7:30pm
BUZ901 (TO-3 case)... Unobtanium... Ouch



 
Back to Top
APW View Drop Down
Young Croc
Young Croc
Avatar

Joined: 13 November 2012
Location: Kent, UK
Status: Online
Points: 1174 		Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 25 November 2020 at 9:19pm
Exicon still sell Equivalents.... Not Cheap!!
http://www.exicon.info/cross-ref.php

BUZ901 = ECF10N20
BUZ906 = ECF10P20

BUZ901P = ECX10N20
BUZ906P = ECX10P20

BUZ901D = ECF20N20
BUZ906D = ECF20P20

BUZ901DP = ECW20N20
BUZ906DP = ECW20P20

......To change all the Mosfets in that amp with the Exicon equivalents would cost over £350.00 for just the parts. Cry


Edited by APW - 25 November 2020 at 9:25pm
Back to Top
M4trix View Drop Down
Registered User
Registered User
Avatar

Joined: 23 June 2009
Location: Croatia
Status: Offline
Points: 445 		Post Options Post Options   Thanks (0) Thanks(0)   Quote M4trix Quote  Post ReplyReply Direct Link To This Post Posted: 25 November 2020 at 9:44pm
Originally posted by APW APW wrote:


......To change all the Mosfets in that amp with the Exicon equivalents would cost over £350.00 for just the parts. Cry


In other words, keep the chassis, the power supply and ditch the mosfets. BUZ901 and BUZ906, get out ! Make place for cheaper workers ! LOL

Edit: oops ! The power supply is on the same PCB with the mosfets. That means, the chassis and
the toroidal transformer stays in. Everyone else... get out ! LOL Wink


Edited by M4trix - 25 November 2020 at 9:48pm
Back to Top
APW View Drop Down
Young Croc
Young Croc
Avatar

Joined: 13 November 2012
Location: Kent, UK
Status: Online
Points: 1174 		Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 25 November 2020 at 9:51pm

YEP, unfortunately…. replacement Mosfets would cost more than the amp is worth!!
Back to Top
cravings View Drop Down
Old Croc
Old Croc
Avatar

Joined: 30 January 2007
Location: Ireland
Status: Offline
Points: 7441 		Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 26 November 2020 at 8:13am
it may not be broken..
Back to Top
APW View Drop Down
Young Croc
Young Croc
Avatar

Joined: 13 November 2012
Location: Kent, UK
Status: Online
Points: 1174 		Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 26 November 2020 at 9:13am

It probably isn’t, we’re just talking hypothetically.


BTW, I like these old Mosfet amps… they tend to have a laid back warm sound.



Edited by APW - 26 November 2020 at 9:20am
Back to Top
njw View Drop Down
Old Croc
Old Croc
Avatar

Joined: 26 March 2010
Location: S. Wales
Status: Offline
Points: 2574 		Post Options Post Options   Thanks (0) Thanks(0)   Quote njw Quote  Post ReplyReply Direct Link To This Post Posted: 26 November 2020 at 10:58am
Originally posted by APW APW wrote:



BTW, I like these old Mosfet amps… they tend to have a laid back warm sound.


 I couldn't tell any difference in the sound between my Matrix STR's and the Technics class A hi-fi amp I've got in the living room, they sounded superb. I used them for years and only got rid of my last two last year as they were getting a bit temperamental and for reasons mentioned in this thread!
Back to Top
jbl_man View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 12 January 2005
Location: London.
Status: Offline
Points: 11155 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jbl_man Quote  Post ReplyReply Direct Link To This Post Posted: 26 November 2020 at 11:41am
What would be the output of that with a full set of 16 devices per channel, 2x 1000 into 4 ohms?  I couldn't find the specs online.
Be seeing you.
Back to Top
Earplug View Drop Down
Old Croc
Old Croc


Joined: 03 January 2012
Location: Europe
Status: Online
Points: 7216 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 26 November 2020 at 12:21pm
Originally posted by APW APW wrote:

Exicon still sell Equivalents.... Not Cheap!!
http://www.exicon.info/cross-ref.php

BUZ901 = ECF10N20
BUZ906 = ECF10P20

BUZ901P = ECX10N20
BUZ906P = ECX10P20

BUZ901D = ECF20N20
BUZ906D = ECF20P20

BUZ901DP = ECW20N20
BUZ906DP = ECW20P20

......To change all the Mosfets in that amp with the Exicon equivalents would cost over £350.00 for just the parts. Cry



You could also "modify" the setup and use the cheaper "X" range. The equivalent to the 2SJ162/2SK1058. That works out a lot cheaper (if replacement is actually needed). 




Earplugs Are For Wimps!
Back to Top
APW View Drop Down
Young Croc
Young Croc
Avatar

Joined: 13 November 2012
Location: Kent, UK
Status: Online
Points: 1174 		Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 26 November 2020 at 12:44pm

Originally posted by jbl_man jbl_man wrote:

What would be the output of that with a full set of 16 devices per channel, 2x 1000 into 4 ohms?  I couldn't find the specs online.

The old UKP and STR amps model numbers tend to reflect the RMS power into both channels at 4R i.e. the UKP2100 is rated 1050Watts RMS per channel onto 4ohms so I would think the STK3000 is 1500watts/PC into 4 ohms.

 

I still have an old Matrix brochure from this era somewhere I'll try to dig it out.



Edited by APW - 26 November 2020 at 1:16pm
Back to Top
 Post Reply Post Reply Page  12>

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.156 seconds.