+ Reply to Thread
Page 2 of 2 FirstFirst 12
Results 11 to 16 of 16

Thread: Opinions on Potential Amp Build

  1. #11
    Join Date: Nov 2008

    Location: Huddersfield

    Posts: 90
    I'm Ian.

    Default

    Colin Wonfor is just about to release the latest PCBs for his SECA amp which will do up to 40wpc of pure Class A with suitable heatsinks. I guarantee it will pee all over the one the OP referenced. I’m going to be making a mono block version.

    Link to 40wpc SECA amp added by Filterlab

  2. #12
    Join Date: Mar 2017

    Location: Liverpool

    Posts: 766
    I'm Sandro.

    Default

    Quote Originally Posted by grog View Post
    F5 would be better for sure, but they give off a lot of heat, also depending on how nice you want it to look, the case/heatsinks can be expensive,
    i'm also looking to build an F5, but might also build a ESP P101 for something cooler running. https://sound-au.com/project101.htm
    If you need help … I am on the 4th build

  3. #13
    Join Date: Mar 2017

    Location: Liverpool

    Posts: 766
    I'm Sandro.

    Default

    Quote Originally Posted by JRead View Post
    Hello M6NTL,

    I agree with Blackdog, when I saw 100 Watts Class A a little work out resulted in 344 Watts continuously to be dissipated by those heat sinks, at +/- 45 Volts about 3.8 Amps.
    The 10 Watts would be fine though, few speakers actually need more, most of the time we listen to about 0.25 Watts.

    Cheers - J
    I agree on the we listen to about 0.25 W
    On Hifidog amps we are running 240 W dissipation per channel

    F5 can be scaled up from the original Papa (Nelson Pass) design

    so far 24v traffos to get 32 V rails

    I am tempted to go higher but 60 V caps are expensive but then I do not think I need more head room as most of the time we listen to .25 W any way

  4. #14
    Join Date: Mar 2017

    Location: Liverpool

    Posts: 766
    I'm Sandro.

    Default

    Quote Originally Posted by iansr View Post
    Colin Wonfor is just about to release the latest PCBs for his SECA amp which will do up to 40wpc of pure Class A with suitable heatsinks. I guarantee it will pee all over the one the OP referenced. I’m going to be making a mono block version.

    Link to 40wpc SECA amp added by Filterlab
    Is there a schematic for it love to have a look at it

    350VA trafos for a 40W tell me more please

  5. #15
    Join Date: Jul 2011

    Location: London

    Posts: 741
    I'm Colin.

    Default

    Quote Originally Posted by Bksabath View Post
    Is there a schematic for it love to have a look at it

    350VA trafos for a 40W tell me more please
    There is but you will need to download it and sign into the forum.

    https://seca.freeforums.net/thread/2...kit-easy-build

  6. #16
    Join Date: Mar 2017

    Location: Liverpool

    Posts: 766
    I'm Sandro.


+ Reply to Thread
Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •