X-DAC V3
May 15, 2006 4:04:21 GMT
Post by hower on May 15, 2006 4:04:21 GMT
I just got a used Musical Fidelity X-DAC V3, and I open it up and have done the normal mod.
1) Upgrade all the 4 Power Cap (Jamicon) to Panasonic FC (similar value), and by pass with a smaller 10uf Elna RJH below.
2) Upgrade the 3 film cap at the Power Input to Wima MKS4 of similar value
3) Upgrade the remaining 13 Elec Cap to Blackgate (12x 10uf 50v, 1x 47uf 50v)
4) Remove all 6x JRC5532 OPAMP, and install IC Socket, and replaced with BB OPA2107AP (really expensive upgrade)
The sound immediately changed!!! Due to so many upgrade done at 1 time, I am not sure which contribute the most. The overall soundstage is wider, and sweeter. And more details is obtained. The only problem is that I think the blackgates need time to break in.
QUESTION 1
There are 9 more cap that need to be changed, but I am not sure if I should do so. I am not sure what kind of cap they are, but they have funny value.
1) 822 = 8200pf
2) 222 = 2200pf
3) 272 = 2700pf
Except for the 2200pf, the other 2 value is difficult to find. The only option that I have to to use Silvered Mica, which have all the above stated value.
Is it advisable to use Silvered Mica???
QUESTION 2
There are also about 40 ceramic cap. I am thinking of changing all to Wima FKP2 for the (100pf and 10000pf) and Wima MKS2 for the (0.1uf). Will there by any anticipant problem by replacement Ceramic Cap with Metallised Polyester (MSK2) and Film Prop (FKP2)
1) Upgrade all the 4 Power Cap (Jamicon) to Panasonic FC (similar value), and by pass with a smaller 10uf Elna RJH below.
2) Upgrade the 3 film cap at the Power Input to Wima MKS4 of similar value
3) Upgrade the remaining 13 Elec Cap to Blackgate (12x 10uf 50v, 1x 47uf 50v)
4) Remove all 6x JRC5532 OPAMP, and install IC Socket, and replaced with BB OPA2107AP (really expensive upgrade)
The sound immediately changed!!! Due to so many upgrade done at 1 time, I am not sure which contribute the most. The overall soundstage is wider, and sweeter. And more details is obtained. The only problem is that I think the blackgates need time to break in.
QUESTION 1
There are 9 more cap that need to be changed, but I am not sure if I should do so. I am not sure what kind of cap they are, but they have funny value.
1) 822 = 8200pf
2) 222 = 2200pf
3) 272 = 2700pf
Except for the 2200pf, the other 2 value is difficult to find. The only option that I have to to use Silvered Mica, which have all the above stated value.
Is it advisable to use Silvered Mica???
QUESTION 2
There are also about 40 ceramic cap. I am thinking of changing all to Wima FKP2 for the (100pf and 10000pf) and Wima MKS2 for the (0.1uf). Will there by any anticipant problem by replacement Ceramic Cap with Metallised Polyester (MSK2) and Film Prop (FKP2)