which capacitor can change to improve the sound?

if your cap at signal part and the voltage <300v, u may consider Vcap teflon 0.47/300v ~usd100/Pcs. I will say it is a better cap than jensen and the price different not so large...

recently just install some V cap OIMP for my friend in his 1SC clone speaker... fantastic...

Cat,

if u r not planning to change the speaker then better change it to very good cap pieces by piece.

in 1st clone got 3.3, 4.7 & 5 (some use 6.8), the price to but auricap 3.3+4.7 shld be able to buy a 3.3 V cap oimp right?

My friend initially is using solen cap...now change to OIMP, a lot of diferences.

agree with accphoto, AN oil cap seems had that problem, not so reliable...
for the sound i feel it is better than mundoft silver oil...

if u can afford AN then just go a bit more for the V cap lah....

Dear Cat,
hehe u r right..i seems almost disappear after having my 1st kid last Nov...she is now 6months old..... within 6 months u had become expert leh.... had complete so many project.....
i didn't do much on DIY, only help friends to assembly a DAC, the 1541A look similar as sold in hififever but the power supply is better (consist of a lot philips cap)
recently start to DIY a AN M7 for friend.

Since you just assemble and sell then can use cost effective cap like auricap....if u got chance u must try listen to Vcap, for speaker Vcap OIMP will do (warm, very good bass, depth & musical)....

If u has the curiosity to know different preamp circuit, u shld has curiosity to try Vcap..ha..ha...

Dear Cat,

My daughter sill can't walk already look at my soldering tools on the table, before she can walk i have to move all that to a small room to work : (

u r right accphoto is a helpful expert here... : )

i had actually made 1 AN7 (semi con diode rectifier) but use as tube buffer, since my friend like it so now made anotehr 1 using better component and with tube rectifier.....

It is not a warm sound pre amp ..... but i like it as it is easy & cheap to construct.

accphoto,

For the power supply, the LCLC  or crc filter what will be the differences if use more capacitor

CASE 1: 15H-47uF-15H-47uF

Case 2: 15H-47UF-15H-500UF

compare 1 & 2

any differences?

Recently has change to use V cap teflon.... good cap but damn expensive...

The worse part is --> after using it seems like don't want to use otehr cap already..... strong poison