Speakerplans.com Homepage
Forum Home Forum Home > General > Amp Forum
  New Posts New Posts RSS Feed - Amp Internals 2
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Amp Internals 2

 Post Reply Post Reply Page  <1 234235236237238 260>
Author
Message
 Rating: Topic Rating: 1 Votes, Average 5.00  Topic Search Topic Search  Topic Options Topic Options
jbl_man View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 12 January 2005
Location: London.
Status: Offline
Points: 11154
Post Options Post Options   Thanks (0) Thanks(0)   Quote jbl_man Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2021 at 11:53am
And here's the  IMG Stageline version as Kevin mentioned above. Yup,all the same amp.


Be seeing you.
Back to Top
Bams View Drop Down
Young Croc
Young Croc


Joined: 08 April 2009
Status: Offline
Points: 622
Post Options Post Options   Thanks (0) Thanks(0)   Quote Bams Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2021 at 12:40pm
And now for the one million dollar question.. where originated the design :) 

regarding the design flaw; it will go nicely with my other amps then.. Dynacord PAA's. in which the designers had the radical idea to let air flow from side to side.... 


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

Joined: 13 November 2012
Location: Kent, UK
Status: Offline
Points: 1173
Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2021 at 1:31pm

From memory the Dynacord PAA range would draw cold air in at the front and out through the sides... this isn't that uncommon.... Crest used to do this on amongst others the LA, V and VS ranges.



Edited by APW - 23 February 2021 at 1:31pm
Back to Top
Bams View Drop Down
Young Croc
Young Croc


Joined: 08 April 2009
Status: Offline
Points: 622
Post Options Post Options   Thanks (0) Thanks(0)   Quote Bams Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2021 at 5:38pm
Originally posted by APW APW wrote:

From memory the Dynacord PAA range would draw cold air in at the front and out through the sides... this isn't that uncommon.... Crest used to do this on amongst others the LA, V and VS ranges.


I stand corrected.. indeed from front to sides.
Back to Top
njw View Drop Down
Old Croc
Old Croc
Avatar

Joined: 26 March 2010
Location: S. Wales
Status: Offline
Points: 2572
Post Options Post Options   Thanks (0) Thanks(0)   Quote njw Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2021 at 6:39pm
Originally posted by Earplug Earplug wrote:

And down here, RAM made some that look the same as well. Obviously a common design - with a horrible design fault. 

The RAM one's I've seen have slots above the fan. Cover that and they overheat - and go POP! One company here installed those in a few bars - where it can get really hot anyway. In the end - and after several repairs, I just swapped out for other amps. Really stupid.   Ouch


   

 It's a silly design for a 'pro' amp that's more than likely going to live in a rack IMO, they could've just turned the PCB by 90 degrees and mounted the fan in the front or rear panel (or both!)...?  

 Edit; The Behringer km750 and T Amp e400 appear to use a very similar design; 

TEST AMPLIS T AMP E 400 THOMANN – HiFi-STereo.fr, conception, enceinte  audiophile DIY active, DAC, amplificateur et acoustique

Dentro Al Behringer KM750 - YouTube


Edited by njw - 23 February 2021 at 6:48pm
Back to Top
Earplug View Drop Down
Old Croc
Old Croc


Joined: 03 January 2012
Location: Europe
Status: Offline
Points: 7199
Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2021 at 8:06pm
" they could've just turned the PCB by 90 degrees and mounted the fan in the front or rear panel (or both!)...?" 

Yup.

And do those also have slots in the top plate? Or do they rely on air flow from the sides? In any case - a really stupid design.

Someone is always going to put something on top of the amp and block the flow, never mind the obvious danger from spilt liquids, etc. The last amp I'd stick in a bar....   Dead


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


Joined: 08 April 2009
Status: Offline
Points: 622
Post Options Post Options   Thanks (0) Thanks(0)   Quote Bams Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2021 at 9:24pm
8 different brands selling an OEM design, with 8 different specifications, and all of them rather optimistic, with the devine pricey compared to other ones .. the wonderfull world of low-end gear always is interesting :)

Edited by Bams - 23 February 2021 at 9:24pm
Back to Top
jbl_man View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 12 January 2005
Location: London.
Status: Offline
Points: 11154
Post Options Post Options   Thanks (0) Thanks(0)   Quote jbl_man Quote  Post ReplyReply Direct Link To This Post Posted: 24 February 2021 at 8:30am
Originally posted by Earplug Earplug wrote:

" they could've just turned the PCB by 90 degrees and mounted the fan in the front or rear panel (or both!)...?" 

Yup.

And do those also have slots in the top plate? Or do they rely on air flow from the sides? In any case - a really stupid design.




Yes,agreed,very odd,given there would have been no additional cost in turning the pcb 90 degrees.

Dare were obviously aware of the overheating issue in fitting two fans to their version.

And here it is yet again, a Biema W220 this time.




Edited by jbl_man - 24 February 2021 at 12:32pm
Be seeing you.
Back to Top
Wikl109 View Drop Down
Young Croc
Young Croc


Joined: 29 April 2009
Location: Yorkshire
Status: Offline
Points: 968
Post Options Post Options   Thanks (0) Thanks(0)   Quote Wikl109 Quote  Post ReplyReply Direct Link To This Post Posted: 25 February 2021 at 12:38am
Pretty sure about 10-12 years ago I had a look at a Prolight Warrior DA-300 amp that had a very similar layout to this.
I remember thinking that the cooling set up dosen't really lend itself to rack mounting.
Cheers, Chris.
Back to Top
monkeypuzzle View Drop Down
Young Croc
Young Croc


Joined: 25 January 2005
Status: Offline
Points: 923
Post Options Post Options   Thanks (0) Thanks(0)   Quote monkeypuzzle Quote  Post ReplyReply Direct Link To This Post Posted: 25 February 2021 at 7:35am
I think this thread has gone full circle! Look at the third post on page 1! 238 pages, that’s pretty good!
blah blah blah blah blah......
Back to Top
fatfreddiescat View Drop Down
Young Croc
Young Croc
Avatar

Joined: 15 October 2010
Location: N.E.Wales
Status: Offline
Points: 1081
Post Options Post Options   Thanks (0) Thanks(0)   Quote fatfreddiescat Quote  Post ReplyReply Direct Link To This Post Posted: 25 February 2021 at 7:44am
Originally posted by monkeypuzzle monkeypuzzle wrote:

I think this thread has gone full circle! Look at the third post on page 1! 238 pages, that’s pretty good!

This thread should now be more stable with less distortion with the addition of the feeback loop to page 1, nice work😛
Back to Top
monkeypuzzle View Drop Down
Young Croc
Young Croc


Joined: 25 January 2005
Status: Offline
Points: 923
Post Options Post Options   Thanks (0) Thanks(0)   Quote monkeypuzzle Quote  Post ReplyReply Direct Link To This Post Posted: 25 February 2021 at 10:18am
LOL
blah blah blah blah blah......
Back to Top
 Post Reply Post Reply Page  <1 234235236237238 260>

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 0.422 seconds.