SSLV1.1 builds & fairytales

[samoloko]

barrows
are you talking about white Mundorf MKP
which cap replaced - electrolytic or other MKP

[RCruz]

Hi Felipe

So you recommend electrolytics for BiB Vref when powering MC head amps right ?

I also found the BiB to provide a more muscular sound that way. But somehow there seems to be less detail in the highs...

[merlin el mago]

Yes, Ricardo.

I use BG or Pana FM with great success, if you use film the sound become with less body and lacks of bass.

[samoloko]

do you like Pana FM better than FC
any bypasses to electrolytic caps

[merlin el mago]

Yes I like better FM than FC, also have bettet specs.
I don't bypass the Vref cap when using Panas FM but if you want can try with a small value.

[RCruz]

Originally Posted by merlin el mago

Yes, Ricardo.

I use BG or Pana FM with great success, if you use film the sound become with less body and lacks of bass.

I agree

I started with the V1 (similar to the BiB) and found that EL vref gave really good body.

Then I went to V1.2 and after that I built the Optimae and understood the benefits of films on vref and output.

Finally I settled with V12R that is stable.... can not go back. Ilike the utter high freq definition.

Hint: did you ever use a Amphom fp-ca-au 630vdc for Vref ? I use those in my DCB1 with outstanding results.... heavy bass with subtle hih freq detail.

[merlin el mago]

I don't tried, but are very good caps and not expensive.

[barrows]

Originally Posted by samoloko

barrows
are you talking about white Mundorf MKP
which cap replaced - electrolytic or other MKP

I use the white Mundorf MKP for both Vref (10uF) and the output cap in the zobel (4.7uF) for the BiB regs which power my Legato (I/V stage). Mainly I choose those because they are decent film caps, which are compact enough to fit without a ton of extra lead length. For powering the digital circuits, I use 1000uF Panasonic FM for Vref. If you are also running the Legato: I found with the Salas regs it worked better replacing the 100uF electrolytic caps on the Legato board with .1uF MKP as well: getting the electrolytics away from the analog circuitry all together.
Before Merlin advised the 10uF film caps for Vref, I was using 220uF SilimicIIs, bypassed under the board with .1uF polystyrene films. The bypass helped, but going to the 10uF film cap alone was better, more transparency, more real sounding.

[Magsy]

For the input/smoothing cap, is the size really important? Do I really need 4700/10000uf there or is 1000-3000 enough? Only powering 5v / 500ma, it seems overkill.

[merlin el mago]

Till 200mA 4700uF more than 200mA 10.000uF, tx till 200mA 50Va over 200mA 80VA both as per BiB manual guide.