Michael G Submitted: 2018.03.19
I recently upgraded my interconnect cable to the phono preamp and also the speaker cables.
Changing the balanced old audiquest cable to the Morrow MA-5 balanced cable made some refinement in the sound quality. But the biggest surprise was the very noticeable improvement upgrading from the SP-5 to the SP-7 speaker cables to my Spatial M-1 speakers. The sound opened up further, soundstage more precise, bass is tighter, and most of all there is more presence to the sound. Just sounds more real! It seems the analog sound is just as much subject to the "smearing effect" that has been known in digital conversion. Much like the improvement many have noticed between "CD quality" and "MQA" when streaming Tidal music, I heard much of the same effect with the speaker cable upgrade. I suspect much of the improvement is from reducing the "timing errors" in the music reproduction. I found a link from Jim Smith's website (Get Better Sound book) to a recent series of articles from a Belden cable engineering explaining how cables affect the time smear of music reproduction and how our hearing is more sensitive to this then frequency response along.
Although the SP-7 cables without discounts retail close to the cost of my speakers, the upgrade in sound was similar to a significant upgrade in the speakers. Your discount program makes the upgrade affordable and worth the risk. I also like the unobtrusive appearance and flexibility of your cables. Thank you.