I recently purchased a Rossini Clock for my Rossini DAC. While I noticed an improvement in SQ with various power cables for the clock, I didn’t experience any difference with clock cables. I auditioned the following 6 pairs of 75 ohm clock cables: Van Damme, Cardas Lightning, Wireworld Gold Starlight 7, Audioquest Diamond, Shunyata Alpha V2 and the uber expensive Shuntaya Omega.
I lived with each pair of clock cables for days at a time and instead of focusing on any specific SQ improvement such as extended highs or lows, I noticed that the addition of the clock seems to put the music a bit more in focus sort of like adjusting the focus of an SLR camera. This makes the listening experience more enjoyable as the presentation of the music is more relaxed.
Even though I did notice a difference with the power cable used, I didn’t hear any differences with the clock cables so I decided to keep the Van Damme due to its lower price and they added ‘Clock 1’ and ‘Clock 2’ labeling on both sides of the cables to help avoid any connection mistakes.
As for a pre-amp, I tried using the Rossini pre-amp to go direct to my Gryphon Antileon EVO amp. I found using my Gryphon Pandora pre-amp produced a better sound with increased dynamics. Going direct from the Rossini to the amp can seem a bit lifeless.