What, who me?
Have you heard it?
I plan on going from 4-N and 4-P a channel to 8 per rail per channel. A doubling of efforts. Bias will be lower of course. I have matched up some smaller FQP's for this purpose. As they will not be running a ton of current each.
Just waiting on some iron, and money to buy yet more heatsinks.
EvanC currently has the 4 pair version. He seems to like it. Wayne, would you like me to draw you an 8 pair version in Eagle, using the universal mounting spec.
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16/ch, Your my guy ...🙂
Are you using boards from the store , or your own, can you drive that much off the single main board ..?
Yeah, tell me about Mr C's , where's the BuzzF version ....🙄
Evan has a 4 pair version on Tea's boards. You'll have to talk to him about its performance. I am moving to BA3B with 5 pairs per quadrant. I like balanced. Also working on an UGS variant with SSM2212 and SSM2220, thanks to a tip from a friend. Kinda stupid though, as I am going to be listening to horns soon and it will all be wasted.
not bad - 40 mosfets per channel
that's equal as PL XA*.5 monoblocks 😉
only problem is - how to arrange pairs per quadrant
that's equal as PL XA*.5 monoblocks 😉
only problem is - how to arrange pairs per quadrant
About the 4 pair version I got from buzz. Power a plenty.... I have been using the boards with a pair of 24 volt 400 va transformers running about .55 amp per device. I needed fans on the heatsinks too keep things cool. My speakers are fairly efficient, but the set seems to sound better with a preamp.
Comparing it to a stock f5 .. sounds similar, but where the f5 seemed to run out of steam this one doesn't.
Compared to my Moskido running same transformers with 2 pair per of buz901/906 per channel this amp sounds a bit dull. Snare drum, slapped bass, this sort of thing lacks the realism/impact that the moskido has. I have been running the f5 with the aikido push pull front end as a pre amp so I believe the comparison is valid.
I know my comparisons are amateur...but that's all I got...
Evan
Comparing it to a stock f5 .. sounds similar, but where the f5 seemed to run out of steam this one doesn't.
Compared to my Moskido running same transformers with 2 pair per of buz901/906 per channel this amp sounds a bit dull. Snare drum, slapped bass, this sort of thing lacks the realism/impact that the moskido has. I have been running the f5 with the aikido push pull front end as a pre amp so I believe the comparison is valid.
I know my comparisons are amateur...but that's all I got...
Evan
Thanks for sharing Evan. I wouldn't expect a huge performance increase in going to 1A. You can fiddle with P3 if you want. Just watch the output offset and make sure you readjust. I believe the J74 has higher transconductance, so to reduce distortion, you want to degenerate it more, to bring it into line with sk170. I believe that is turning it towards the bottom or counterclockwise, but dont quote me. Been too llong since i fiddled with it and too many other things swirling in my noggin.
Altec 416 paired with Iwata 290, with ALtec 288. If i dont like that I will go for jbl2235 or TD15m. I am thinking i will like it based on what I know at this point, but you never know. Alternative to 288 will be Radian 745 because they are supposeddly making a truextent diaphragm for it. May try the HornsPL JMLC350 as well. It, like all things, will move and change as needed. I might love the ALtec setup and stop there😀
Hi Everyone,
Can someone tell me if this diagram is correct or not?
My big question is how does the output sum between the N channel and P channel boards?
What is "LINK"? Looks like Ground.
All other ground best be sent to the power supply as a star ground.
Modify this diagram or please draw up another diagram.
Made in Microsoft Paint and the file is a jpeg.
Thanks,
Vince
Can someone tell me if this diagram is correct or not?
My big question is how does the output sum between the N channel and P channel boards?
What is "LINK"? Looks like Ground.
All other ground best be sent to the power supply as a star ground.
Modify this diagram or please draw up another diagram.
Made in Microsoft Paint and the file is a jpeg.
Thanks,
Vince
