Caiman passive output mod revealed

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Originally Posted by Covenant

It doen't look like Hifi Collective have the Black Gate 47uf FK's in stock. Anywhere else they are available?

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Hi Jerry

I've ordered several items from Parts Connection, good service.

It appears they have some in stock. I don't own a Beresford but others here may like to make up an order.

http://www.partsconnexion.com/capaci...ackgate_f.html

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Originally Posted by StanleyB

Hi Peter, I can't see anything useful on their site. I have a couple of non-polarized 47uF/16V to try. You can pass by after work and have a pair if you wish:). I have one Rubycon you can have as well. Dunno if I can find another one though.

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Thanks Stan, I may well do that - but over the w/e if it's OK ? Supposed to be social tonight :)

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Originally Posted by Peter Galbavy

Thanks Stan, I may well do that - but over the w/e if it's OK ? Supposed to be social tonight :)

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OK:).

Oh wow. Don't you just love cap burn in.....the china in the cabinet is now dancing around to the bass notes :eek:

Close miked female vocals are much better, still some hardness but it's improved, I don't think it will improve much more....time for some more cap Rollin' and tweakin'

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Originally Posted by NRG

Oh wow. Don't you just love cap burn in.....the china in the cabinet is now dancing around to the bass notes :eek:'

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I did mention it in my opening statement of this mod ;). Anyone wishing to pit their CDP or DAC against the Caiman with passive mod :)?

Could someone please explain what difference putting a 100nF cap across the main cap used in the passive output mod will make to the sound? Also, what type of cap should be used for this? Electrolytic, polyester, polystyrene, silver mica etc etc?

Also, my power amps have a 50K input impedance, so what are the maximum and minimum capacitance ratings suitable for the main cap?

Thanks. :)

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Originally Posted by StanleyB

Yes it does, but bear in mind that the volume level is at least 3dB less without the line opamp.

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Thanks Stan,

Does the mod stop use of the headphones? I only ask as I tried non polar caps into the Pin 3B socket and no sound - was trying this before feeding it into my power amp (still scared to have full vol into my speakers).

Regards

Chris

If you take out the audio PCB you won't have any headphone output.

Thanks again Stan, Will just have to go for it and be ready to pull the plug - fast! Now where are my old Kinn Keilidhs to use as a sacrificial lamb.

Regards

Chris

Thanks Stan,

Got is going (no mishaps) and it sounds good. Volume control needs to be up at around 1 oclock to get a nice vol level - is there a mod that helps this?

Gone for the non-polar Rubycons 47/16v initially.

Regards

Chris