L'Amp: A simple SIT Amp

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#1,201
L'amp CCS- Power Supply Resistor

Hi Everyone,

Why is there only a single 1 ohm power resistor used in the power supply and not four .47 ohm power resistors used like in other amps? I used this single 1 ohm resistor in the Zen 9 (as a short-cut) and the supply voltage dropped by 4-5 volts. Is a voltage drop required?

Thanks,

Vince
 
#1,207
hi all , do you want to know who is the dumber of the week? it's me 😀
i have said that putting a 33ohm resistor in parallel with the speaker output had brings more 3D sound and better mids .. i was totally wrong , the better sound is here but my resistor is 12K 2W tantlum 😛 so it is so high that it cannot make any difference in output impedance ..

any idea about what a so high value parrallel resistor could make ? 😕
 
#1,211
juanitox said:
hi all , do you want to know who is the dumber of the week? it's me 😀
i have said that putting a 33ohm resistor in parallel with the speaker output had brings more 3D sound and better mids .. i was totally wrong , the better sound is here but my resistor is 12K 2W tantlum 😛 so it is so high that it cannot make any difference in output impedance ..

any idea about what a so high value parrallel resistor could make ? 😕
Click to expand...

That could be me.....🙂

that´s why Zen Mod says I have golden ears....😀

after every change I hear an improvement.....😀😀😀

and how does it sound when you parallel a real 33R?

I will try to hold the 33k between my left thumb and the left digital finger and look if I hear any difference....😀😀

thanks for your open words......it is a relief....
 
#1,215
juanitox said:
sound clean but flatter like too much negative feedbach on a tube amp , perhaps it"s only with my speaker and my thin monobraid speaker cable..

.. generg tell me if you find the same , if not i will join zenmod in his Deaf audiophool beach club 😀
Click to expand...

O.k. I will help you Not to get a member of ZMs club.😀

Indeed after some time of hearing I think a value that is better for my system may be a bit higher 68R is my favorite candidate at the moment.
At any case it is possible to shape the sound of the 1H93V in this way a bit in a direction you like.

I am afraid we are all a bit ZM like, in the love of high efficiency speakers,

A clear sign of beginning deafness!😀
 
#1,216
ok enough letting go now :shhh:

i ve got a question for the elite of the elite of this thread:

what part of the underneath the 2sk82 actually transfer heat? is the round part most effective or the whole surface conducts heat equally?

because i dont have an appropriate pad with me, i m kind of making one that is easier to make if it doesnt cover the whole surface...
 
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