New cables, help

Pierre - I suggest that you try the new Zitron cables from Shunyata or the Silent Source cables. Both should be as you describe your sonic wish list.

May be you might try the new Jorma Design Unity. They remind me meeting your requirements.

Try CH acoustic X20 power cord on the pass amp (I own it and love it on my RSA DImitri, and Dartzeel 108 amp, i have also owned Pass in the past) , Elrod gold statement may also work but wont necessarily be better for the performance you are looking for ( have demoed the Elrod Gold for 5 weeks, it was excellent in bass region but midrange and top end extension was just good, ultimately not as much PRAT (foot tapping) as CH x 20. Spend the money saved on better interconnects and Speaker cable.
Interconnects: The CH acoustic X20 is definitely worth a try (lived with this for several months (thanks Craig!) and still it is on my short list as i have not made a final decision yet ( but I liked it better than Tara Gold Zero which i also listened to extensively). If you have the pocket book Jorma Prime design is very special but may not give the ultimate bass extension. Which is why I like jorma for speakers that have powered subs. Personally Im about to try the Stealth audio Sakra interconnect and compare it to the Jorma prime (both thin copper), and the Nordost Odin to the CH Acoustic X20 (both copper coated with silver)

Speaker cable: Jorma design if you have powered subs, believe it or not Tara any model u can afford is a nice balanced sound that feels " live". Unfortunately in my system CH X20 spkr cable was good but lacked the "aliveness" that i was looking for though not by much , could be system dependent. (note the X20 interconnect and power cords are very much alive sounding and in my system were much better performer than the X20 spker cable) Im also considering a triple run of Evolution acoustics, unfortunately you have to buy this one or know someone that has it to try. Word of mouth is that it is a Tara beater.

KubalA Sosna ELATION in general good but not mind blowing. It is very system dependent and worth a try since they have a generous trial period. .After trying all elation within my system including PC, Interconnects, spkr cable, I actually purchased only one item- Elation Digital that i use on a modified Sonos 90 player feeding my AUdio AERO PRESTIGE DAC input. I have tried so many digital links including the best of Purist audio, MIT, nirvana, tara, too many to list here. Elation Digital just stole my heart.
Hope this helps!

Another shout out for Mapleshade cables.

We all know that cable performance (ICs, speakers and powwer, jointly and severally) is largely system dependent: one man's cable system nirvana makes the next man's system sounding like crap.

Well, the lengthy journey finally found its destination for me.

** NORDOST FREY XLR ICs
** NORDOST FREY shotgunned speaker cables (2 to 2)single wire and matched NORDOST shotgunned jumper cables.
(why shotgunned single wires instead of bi-wires: For example, CHORD, on their website, are one of many hi-end companies abandoning bi-wires on their premium products in favour of double run single wires and jumpers as a referred route to go). IN my experiences, it made afavourable improvement also in my kit.
** Power cables performance is similarly VERY VERY system dependent. I recently modded an ECOSSE double run set wth FURUTECH gold Plug and Gold IEC --- the improvement there was also not subtle.It was different from the incumbent cable, so that component is still a WIP,as I still use the incumbents.

MY EVALUATION (FWIW): each new cable individually showed improvements over what it replaced.

BUT ..... when it was an all-NORDOST cables kit, it completely slayed ALL the competition by a quamtum leap margin even brand new out of the box.

Dynamics and attack were now unparalled. The soubdstage was much morev expansive L to R and also front to back.
I also now had an extra half octave of crisp and punchy bass - that caught me completely by surprise.

But upon reflection, system synergy simply had been validated.