Hi David,
There is a builders WIKI here . It should contain all you need to know and links to schematics and such. There is a schematic on page one of the thread I believe. You can also go by Jan's information at as well at Delta Audio and I prefer to do so myself. Jan designed the first board for this project and then later with the help of Punkmouse we expanded upon it a bit. Keep in minf these amps do generate alot of heat! but they are also scalable and if you're going to tri-amp then getting away with smaller wattage for the highs and mid are certainly possible. This can also run in a high bias class AB with great results as well.
Hope this helps......
Mark
There is a builders WIKI here . It should contain all you need to know and links to schematics and such. There is a schematic on page one of the thread I believe. You can also go by Jan's information at as well at Delta Audio and I prefer to do so myself. Jan designed the first board for this project and then later with the help of Punkmouse we expanded upon it a bit. Keep in minf these amps do generate alot of heat! but they are also scalable and if you're going to tri-amp then getting away with smaller wattage for the highs and mid are certainly possible. This can also run in a high bias class AB with great results as well.
Hope this helps......
Mark
reading...
Hi dfdye, unluckilly you stumbled across a 5000+ post thread. You got yourself some readin' to do!
dfdye said:
Hi dfdye, unluckilly you stumbled across a 5000+ post thread. You got yourself some readin' to do!
heat sinks- for sale
Exclusive to this thread!
Now on the cheap!
I will sell the heatsinks from the mystery amplifier!!!
I have used these for my krell clone with great results, actually I used only 3/4 of the sink, it was just too big for the case. See here
I have acquired a 2nd of these for $30.00. Email or post, and you can have this at my cost ($30.00) plus shipping to your location. Note that these are best used "live" as they are predrilled for #6-32 screws and you will have a chore to isolate your output devices. They are capable of massive heat dissipation with fans and come with all hardware necesary to insulate one sink from another, though the drill patterns are not the same you should have no trouble mounting a lot of to-3 devices on them.
Edit- these are quite large and heavy- gold anodized aluminum that is 11.5" long, 7.5" high and 5.5" wide; and ahhh... heavy. No transistors or diodes included, only heat sinks and insulating hardware.
Exclusive to this thread!
Now on the cheap!
I will sell the heatsinks from the mystery amplifier!!!
I have used these for my krell clone with great results, actually I used only 3/4 of the sink, it was just too big for the case. See here
I have acquired a 2nd of these for $30.00. Email or post, and you can have this at my cost ($30.00) plus shipping to your location. Note that these are best used "live" as they are predrilled for #6-32 screws and you will have a chore to isolate your output devices. They are capable of massive heat dissipation with fans and come with all hardware necesary to insulate one sink from another, though the drill patterns are not the same you should have no trouble mounting a lot of to-3 devices on them.
Edit- these are quite large and heavy- gold anodized aluminum that is 11.5" long, 7.5" high and 5.5" wide; and ahhh... heavy. No transistors or diodes included, only heat sinks and insulating hardware.
Re: reading...
In other news, the WIKI was amazingly helpful! Thanks, Mark! Unfortunately, I think the heat will be an issue since I was going to build 4 pair. I think I may have to fall back to chipamps for this project. (plus the parts will probably be cheaper, though I have not priced the KSA-50's out yet).
Thanks for the help anyway!!
Yea, I was hoping I had the wrong thread.lgreen said:
In other news, the WIKI was amazingly helpful! Thanks, Mark! Unfortunately, I think the heat will be an issue since I was going to build 4 pair. I think I may have to fall back to chipamps for this project. (plus the parts will probably be cheaper, though I have not priced the KSA-50's out yet).
Thanks for the help anyway!!
Mark said:
Al, I didn't know you had picked up such an attitude with your moniker! Better lay off the Clash and ska. A little Happy Monday from Manchester will chill you right out!😉
Listening to the Krell Klone into the wee hours, Paul Carrack's 'It Ain't Over' on the spinner...
Lyndon
Al, I didn't know you had picked up such an attitude with your moniker! Better lay off the Clash and ska. A little Happy Monday from Manchester will chill you right out!😉
Listening to the Krell Klone into the wee hours, Paul Carrack's 'It Ain't Over' on the spinner...
Lyndon
pinkmouse said:
If those boards don't work you'll have to.
You'll be a re-fried mouse, turned black !!
(almost a shame that they do work)
Nothing wrong with The Clash.
You should try a Glasgow versus Edinburgh socker game, plain awfull !!
Mark,
not sure whether your stack of foreign checks work or bounce overhere, glad to give it a try for you if you like.
lgreen said:
True, however I have always gotten below ebay prices from them. You sure need to do your homework as they are in to make a few bucks... no charity is assumed.
😉
K-amps said:
You'll be Kon-Amps from this moment on.
(just don't get a Nicholas Cage attitude)
jacco vermeulen said:
You'll be Kon-Amps from this moment on.
(just don't get a Nicholas Cage attitude)
😀
6 channels is a lot... this baby can add up fast...
Per channel rough estimates:
14 per board
36 for components
10-110 for power caps
10-20 for heatsink
30 misc
plus trafo. lets assume you are sharing, so $50-100
$ 150 to $300 per channel Plus chassis and other goodies....
You could go less or more, thats up to you but this is a ball park.
Did I scare you enough?
Per channel rough estimates:
14 per board
36 for components
10-110 for power caps
10-20 for heatsink
30 misc
plus trafo. lets assume you are sharing, so $50-100
$ 150 to $300 per channel Plus chassis and other goodies....
You could go less or more, thats up to you but this is a ball park.
Did I scare you enough?
If you're going to build 6 channels and have them work all at the same time, you should factor in the cost equation a mid-sized air conditioner.
Furthermore I'd double check your in-wall wiring and make sure you've got plenty of juice available!
Furthermore I'd double check your in-wall wiring and make sure you've got plenty of juice available!
At idle with 6 channels correctly biased, he would be pulling 800 watts... Quite less than my clothes iron.... about half of the hair dryer, those both use standard outlets with is 15amps in the US.
i.e You can draw a max of about 1800 watts or 1kva more than what he will pull...
But you make a good point, he needs to consider that....
i.e You can draw a max of about 1800 watts or 1kva more than what he will pull...
But you make a good point, he needs to consider that....
At this point in time the cost of my amp has run up to $975, and the parts I used aren't all that exotic. Still need a chassis, soft starters and other little thingies.
Also, a six channel version will create a lot of heat and an unhealthy electric bill.
On the other hand, when the amp is playing you could rent out your place as a sauna! 😀
Did I scare you even more
Regards