(Jolida) Black Ice Audio Foz SS-X Sound Enhancement


I could find only a few reviews of this device and a few forum entries here. They were all favorable. I sorely needed the bass enhancement circuit for my Maggie 3.7s. I have a Marchand X.26 crossover handling them and the sub but the integration was not ideal. The pre and amps are Cary Audio Class A mono blocs. The source is transparent and very revealing. I did not want anything to upset the glorious sound of the tubes. I also needed something to offset my small-ish listening room. The Maggies ’stand watch’ but I can’t get the distance I need for them to bloom. The SS-X seemed to fit the bill - tube driven, clean specs and a solid designer pedigree. I respect Jim Fosgate.

I ordered the SS-X on the strength of his engineering expertise, particularly in tubes, viz-a-viz Jolida. Not having heard the device it could be considered a leap of faith or a plunge into disappointment. I held my breath.

Straight to the chase: Maggies now have a sweet bottom end, the sub has been dialed back and has disappeared and the top to bottom synergy is spot on and very satisfying.

But wait, there’s more...

The spatial imaging adjustment: Well, I listened to several of my favorite studio recordings. Clean, thankfully. I then put on a nightclub recording of the late Ben Webster live in Amsterdam. I nearly fell out of my chair. The speakers disappeared and I was looking around for the cocktail waitress. The drum kit, the piano, the double bass were all present in the venue with all of its ambiance and Mr. Webster was doing what he did so incredibly well: swinging the audience ala Ellington with that big smooth sax. You could hear everyone present as if you were sitting there.

I’m still waiting for the cocktail server. Incredible device and worth every penny and the anticipation.





128x128keesue

Showing 12 responses by uberwaltz

Oh and as per an earlier Post of mine I suggest leaving it powered on all the time,I definitely saw a large improvement that way.

After all its only one little tube.....
Mine is very well burned in as it was an ex demo unit before I got it.
I have tried several different tubes and I cannot say as sibilance was ever noticeable at any time.

Keep piling hours on it!
Glad to hear you are finding tube rolling to give an improvement.

I now have a Bugera tube in mine and I am liking that one quite  a lot so far but early days as it was brand new and need to get some hours on it.

Bass definitely does seem to be more taut but still deep and powerfull.

Its a great little box imho, whether it offends the purists because it is another item in the signal path well oh shame.

I have no intention of removing it from my system anytime soon.
Good deal!
I have a Bugera tube on it's way as well, just to try because I can.
4KROWME
Very good idea on markings for the two knobs, would have been easy for the factory to do along with a center "null" position detent on each one.

Overall I would say it is well worth the $299 shipped price I paid.
Tube rolling definitely has a huge impact even with just the one little tube.

I am very fortunate to have a local audiophile friend ( thx Rick) who has a good stash of tubes so......

TungSol .... Bottom of the pile, too rounded, lost detail and impact.
Sylvania .... Nice neutral tube, nothing to say bad, but nothing to make you dance too either.
Mullard long plate .... Plenty of impact but top end detail not as refined as I would like.
The winner from my little pile is....

RCA ... Has it all, nearly. Not quite as insightful bass and mids as the Mullard but very nice highs and piano is to die for.

Pretty interesting that a few simple tube swaps can change the character so much.
Looks like this is one of those units that needs to be on for many hours to sound its best.

Last night after 12 hours power on it was sounding better.

This morning after nearly 24 hours it is a LOT better.

Think I will just leave it on all the time, after all only 1 small 12au7 tube.

And I just bought a Bugera tube so will see if tube rolling has any impact.

More updates later.
Using good power cord.
Using same interconnects as rest of system which are more than good enough imho.
It is sitting on its own shelf and vibration should not be an issue.
Interesting....
Maybe the Nak is just not a good match to the Jolida.

I say this because I have just sat down and am playing Janis Joplin through my Pioneer R2R through the Jolida and it is night and day.

This sounds spectacular!

So different from the Nak through the Jolida.

Most odd.

Be worth keeping just for the sound from the open reel through it but I will likely put the Nak back on the iFi iTube unit .
Received my unit today and have to say first impressions are well, not impressive at all.

The sound I had running through my iFi iTube buffer on my Nakamichi 660zx was considerably better than through the Jolida.

Bass was much more stout and clearer, the Jolida almost seems to put a veil over the bass and leaves it more a one note muffled affair no matter where I have the bass dial.
Now the dimension is fun but that is about it.

Overall unless it gets much better the longer the unit is on and warmed up it is not a keeper.

Even though it is nice to have just one unit to run both analog sources through, I think I would just buy another iFi iTube buffer for the open reel deck.
One is on its way.
Found a trade in at $300 so not painful at all.
We will see.

I am presently using an iFi audio itube buffer which gives me a good result on my cassette deck and an el cheapo Chinese tube buffer on my R2R tape deck.

Will be nice to run both decks into just one unit.
Very interesting indeed.

May have to give one a try on my Maggie's.

After all $400 is not a fortune.