Very late in getting to this, but have just purchased an isotek mains conditioner. My system is about £18k built up over the years and my new purchase has brought out so much more musicality than I thought was in my system: to hone in...
The same that goes for power conditioners, power cables and the accessories lot, goes for speaker cable and interconnects (to which I will focus my ramblings now).
Any average audiophile (as pretty much I am) knows that the law of diminishing returns, objectively are in play, you can almost put a negative exponential curve on performance to money spent. But... what is it about spending up to 10% or... even more. For me, it comes down to the following, beyond objective examination and even subjective interpretation as the various convoluted adjectives turn into gibberish for most. Lossless.
The term is appropriated to CDs, and digital formats, but in a way, interconnects are about "losing less". However good your components are, once a signal leaves a transport, or a stylus, every separate from the extraction of music from the source to the speakers "loses" from whatever the quality of that source was, through every connection out to input, out to input etc etc. the only way that your speakers will get anywhere near to what came in via the source, to the speakers, is through the cables you put in place, to not lose the sound.
I've upgraded my system now to the point that I think the only thing missing is to sort out my interconnected. I currently have a £70 interconnect from my DAC to pre, and a £20 Coax from Streamer to DAC. Is it ludicrous to think that between a £1100 Streamer, a £1200 DAC with £600 Power supply, and onto a £1500 Pre to a 4k Power etc etc that that type of spend will really get the best out of my system?
The thing is, I like spending on equipment to see how good music can be reproduced, and with my £20 Coax and my £70 interconnect (oh, £300 interconnect between pre and power) the sound is absolutely incredible on the versions before, but... if you've got a bit of spare cash, and everything else is right, don't you wonder what it might sound like? £18k system, I'm willing to spend 2k on cables, and if it doesn't work, there's always ebay....