bigger, the better
no use going for less than, say, 50uF
there are anyway just two positions where you can place them - as bypass of final rail cap, and as bypass of output cap
ha - don't forget another option - shown with other amps having output cap - in case of bi-wiring, one can use dedicated solid cap for tweeter feed
no use going for less than, say, 50uF
there are anyway just two positions where you can place them - as bypass of final rail cap, and as bypass of output cap
ha - don't forget another option - shown with other amps having output cap - in case of bi-wiring, one can use dedicated solid cap for tweeter feed
Last edited:
As bypass of the output cap, is something like https://www.amazon.com/TEMCo-Motor-Capacitor-RC0096-100-Electric/dp/B01A5ZGUR6 appropriate?
I used motor run caps as input coupling and output coupling/bypass caps in my version of the amp. I used 10uF Kemet in both cases. The amps sound great. Maybe boutique caps might sound better or maybe not, but it's not worth worrying about. It's diy. 
Blocked
Blocked
Attachments
well, I don't like them exactly for input duty - too big for that level of energy (line level) for my taste, while somewhat more noise prone , both due to size and longer input wires
can't remember do you have buffer there, if you have , small 1uF is overkill an I expect it'll bring more details
can't remember do you have buffer there, if you have , small 1uF is overkill an I expect it'll bring more details
more than adequate
I'm using best what I can get on my side - either Ducati or Icar
they're jolly good
output node is at 35V(ish) and you can't increase Iq?
which pucks you're using?
same situation in both channels?
anyway - do not change 8K2 ....... set trimpot to have approx 10K ( together with 8K2) then slightly increase R3(100R)
you can try step by step with standard values (120R,150R, 180R) or you can put trimpot there connected as variable resistor (mid pin soldered with one outer)
say that 500R is handy value, start from 0R then slowly increase, carefuuuuuuly
interesting, first case of mosfet being lazy .......
which pucks you're using?
same situation in both channels?
anyway - do not change 8K2 ....... set trimpot to have approx 10K ( together with 8K2) then slightly increase R3(100R)
you can try step by step with standard values (120R,150R, 180R) or you can put trimpot there connected as variable resistor (mid pin soldered with one outer)
say that 500R is handy value, start from 0R then slowly increase, carefuuuuuuly
interesting, first case of mosfet being lazy .......
Last edited:
If they increase to 35 V, the Iq drops a little below 2A.
That's why I set it to 32 V and the bias is around 2.1A.
I didn't have patience and I put another 8K2 resistance on R1.
Bias increased to 2.75A. I even auditioned, it sounds great!
Until I have a single channel connected to the radiator.
OK, I'll go back to the initial 8K2 resistance and change R3.
Thanks a lot for the quick response, ZenMod !
That's why I set it to 32 V and the bias is around 2.1A.
I didn't have patience and I put another 8K2 resistance on R1.
Bias increased to 2.75A. I even auditioned, it sounds great!
Until I have a single channel connected to the radiator.
OK, I'll go back to the initial 8K2 resistance and change R3.
Thanks a lot for the quick response, ZenMod !
logo, or amp?
Amp of cause, what else
I have a half baked idea, just need the other half of the brain cell to finish it
Last edited:
