4 pole capacitors ?

[goraman]

:scratch:Jensen sells a 4 pole capacitor (what is that all about?)
In speakers I have tried a lot of caps and seem to like Clairity caps.
the PX grade are much like Solons in sound but stepping up to the SA grade after a little longer break in seems to really open up the and fill the room more than anything in it's price range.
I have also upgraded electrolitics in power supplys ect...
but I have no idea what a 4 pole is or dose?





Below is a Mission crossover,just look at the original cute little blue Al caps .
Both are 6.8 uf but one is rated at only 50v.
the 3rd picture is stock, the very last picture was a Xover for some Yamaha's I did for my brother.What a differance caps make.

[Audiocom AV]

:scratch:Jensen sells a 4 pole capacitor (what is that all about?)
In speakers I have tried a lot of caps and seem to like Clairity caps.
the PX grade are much like Solons in sound but stepping up to the SA grade after a little longer break in seems to really open up the and fill the room more than anything in it's price range.
I have also upgraded electrolitics in power supplys ect...
but I have no idea what a 4 pole is or dose?

Hi Jeff

Here is a link to the White Paper for the Jensen 4-pole:
https://audio.jensencapacitors.com/public/dokumenter/4pole.pdf

I have been testing capacitors for more than 20 years and the Jensen 4-pole better any other electrolytic for power supplies.

Best Regards,
Mark

[goraman]

Thank you,Mark I'll bet they don't come cheap.

[leo]

I use the 4-pole DNM T-network caps in a pair of Hypex UCD's http://www.dnm.co.uk/capacitors.html#tnetwork
Their pretty good compared to the others I've tried

[James G]

I too am interested in the 4-pole capacitors to upgrade the reservior caps in my DAC (12,000uF/35v x 4). I'm wondering where do the extra 2 poles connect to? Do they connect to the same place as the other 2 poles connect to?

Should I stick with the exact same capacitance, or due to the nature of these caps is something else recommended? Due to the slim case I don't think I can go any taller than 45mm unless I lay then down sideways.

As you can tell I'm not an engineer, just a guy with some tools and assembly skills. ;)

[leo]

Two of those pins are used for input (V in and GND in) , two are the output (V out and GND out). I can't remember which pins is which


Details how they work here http://www.dnm.co.uk/capbhc.html

I'm sure the Jensen caps do things with the 4 pins the same although they do actually sound quite different to the DNM's

[James G]

It figures I'm not smart enough to understand this. :( I can grasp voltage in, voltage out but...

So does this mean if I want to use this as a replacement for a standard 2-pole cap, then both the "Input+" and "Output+" will both connect to the + side of the PCB, and then the "Input-" and "Output-" both connect to the - side on the PCB? Or do I keep the "Inputs+-" together and the "Outputs+-" together?
My thinking is way too simplistic. I feel dumb for asking but you know... any advice is much appreciated (except "give up")! :lolsign:

[leo]

Using the T-nets to replace a normal 2pin cap is possible but requires a little pcb rework, they are not a drop in replacement.
I did a quick drawing below, the top pic is of a normal 2pin cap showing +v and ground track for a single rail supply, the bottom pic is also single rail supply for a 4pin T-net, notice the cut between the tracks? If you was to connect the +V & V+ out together and -v in & - v out together you wouldn't get the benefit

http://i273.photobucket.com/albums/jj220/kingbusoms/tnet.jpg

[James G]

Thanks for that, Leo. I get the gist of it.
I can't make out the small text. Just to be sure, it would go like this?


http://i577.photobucket.com/albums/ss213/jgjpn/tnet2.jpg

[leo]

Hi James,

Yes, thats it, the pin outs are marked on page 5 of the datasheet http://www.dnm.co.uk/ALN20S.pdf
I just did the quick drawing to give an idea how their connected

[Rare Bird]

Those DNM 'T Nets' are fantastic caps. This is when you realise that Power Suppy Reserviour cap quality is important when you hear the difference a 'T Net' gives against a standard cap