I have been keeping my distance from this thread as it really is about QSA - my role is solely to supply donor Sablon cables for treatment - however Anas asked me to chip in a few words about my personal experiences with their products.
By way of background, I had been following the other QSA thread about their fuses and outlets from its inception. I have long appreciated the importance of these peripherals in maximising system performance, yet some still view them as being controversial.
@romaz, who as usual was waaay ahead of the rest of us in trialling QSA products, advised me to go straight in at ‘Silver’ level. I trust the man - his ears, his integrity, his helpful and well informed nature - so that’s where I started. The ncf wall socket feeding my entire system was replaced with a QSA silver. Next came silver fuses for the Taiko Extreme and Lampi Baltic dac.
So far, so good. But what about treating your power cords asked Romaz? Whilst we early QSA adopters were still on the foothills, it seems he was already at the base station having had a number of his Sablon cords treated with stunning results. Sure, why not I replied.
An invitation from Anas later and I sent in a Prince cord last autumn for treatment. The cord came back showing significant gains in detail and soundstage size. Yet, it transpired that the exact nature of the treatment was still being refined and I had only received an interim stage. The final treatment is based on that applied to my silver outlet and fuses, and two King cords with Infinity line treatment came back to me earlier this week.
My initial listen from cold was familiar but with a larger presence and more saturated intensity. It was a qualitative shift, akin to letting a red wine breathe, and there wasn’t a perception of anything being missing or deficient from the sound as can often be the case with new gear. After settling in for two days under power, there is a further maturation with greater musical ease and projection.
For me, nuance / micro detail / textural ambiance, call it what you will, is a quality which separates great systems from the merely good ones and QSA Infinity treatment on my King cord takes me further down that path. I dare say it will further improve over the next week but in an incremental manner.
Finally, one thing worth noting is that QSA believe their treatment works best on both relatively impure materials and also large conductor areas. My Sablon cords only tick the latter box, as both the Bocchino plugs and wire are made from high purity copper.
