First mod I did to YG Anat speakers was fitting custom hires Vertex links between the bi wiring terminals on the mid/high speaker sections.

they are currently just dangling in space and I really need to experiment with a better way of supporting them.

for some parts of my system, the Vertex products work well. Speaker cabling seems the most obvious and this may be due to their ability to damp out mechanical vibration in the cables. The cost of the speaker cables meant I needed a less expensive way of dealing with getting signal to both sets of binding posts than by buying a second set of Vertex cables. The original links were WBT solid silver bridges so I persuaded vertex to make custom short links fitted with the Vertex damping technology to replace them. Seem to work well and the difference, whilst not huge, is noticeable.

I understand.

Two reasons

First: I'm a lazy individual and filing Lps and faffing about with getting the best from those fragile records is just not interesting. Note that, although there's a cd transport, it's not actually been used for serious listening in over two years. I had 5000 Lps; I've currently got the best part of 10000 CDs, all of which are in packing cases in an air conditioned storage unit.

Secondly, whilst good op system sounds very fine, I believe that the reason cd and digital generally, doesn't sound as good is due to digital clock errors. That's an area I've spent time working on both as a Hifi enthusiast and also as someone who is involved professionally in the area for some pretty special applications.my digital clock experimentation in Hifi has included playing with a number of rubidium clocks as well as using gps clocking as an additional external reference.

Whilst doing that, the system might sound better, or sometimes worse, but was always recognisable as a good digital system. Last year I evaluated a clock based on a BVA crystal oscillator which is a refinement of an OCXO where the cut is different and parts of the crystal are also used for the suspension to minimise conduction and mechanical effects. This results in short term accuracy in the 1 part in 10^-14 range which is typically over 100 times more accurate than clocks found in most high end cd systems.

the effect of this clock change was to remove that difference we associate with the digital versus analogue comparison. 

The he improvement in listening quality is not subtle. Of course there are poor transfers and my system will not make them sound any better but decent source material does sound very good indeed.

so that's my reason for not including vinyl.

Fair points, and I'm still playing with ideas for a superior clock for both my Ayre C-5xe and Technics turntable.

Although I now have streaming capability and it sounds very good, I have no interest in ripping any of my collection. In fact, I like browsing through records and CDs physically and I often just see something I want to play that way.

And from a nice guy that would take them back !

Bunging on a cd involves finding it in the first place: far too much like hard work!

Store em all on a top quality storage and replay device and add streaming. Listen to what you want when you want. Consign both black and silver disks to the storage unit until their collect ability means they are worth shoving on EBay.

Of course, you would have to delete all your rips if you decided to sell the discs.

YG offer a "professional" upgrade that provides an additional bass unit for each channel but the Wilson sub seems an attractive practical alternative. Getting flat for any speaker down to below 20hz is incredibly room dependant. In a smallish room, the edge tones play havoc at lower frequencies and will typically cause great bumps and suck outs in the frequency response. The reason to go for the Wilson was the facility to tune the base response to try and deal with such issues.

Martin, the Usher speakers you have do, according to the reviews, seem to produce exceptional smooth bass extension: not flat below 20Hz exactly but according to spec, within 3db at 22Hz.

I haven't heard them in the flesh but definitely sound worth a listen and look very competitively priced against many comparable U.S. Speakers. Have you compared them to the Rockport offerings which are my benchmark at that sort of price level?

just checked the quoted frequency response of the YG speakers:

Deviation:
±1 dB in the audible band
Usable output extends from below 20 Hz to above 40 kHz

again not helpful because doesn't consider effects of room on bottom end. For me, some kind of treatment, both electrical and acoustical is essential to flatten out the 20Hz - 30Hz region

The Wilson Sophia always seemed to me one of the more listenable Wilson speakers. It is possibly more musical than the Sasha. Although I must say one of the best systems I ever heard was using Wilson Alexandrias driven by Spectral amplification with a DCS front end all in a very expensive custom listening room.

The YG costs about halfway between the Sasha and the Alexandria at around $75k although at this level price comparisons are somewhat meaningless.