I have had my IO Sig (single power supply) for a couple of years now and it is naturally musical and explosively dynamic with a wide soundstage. It is very textured as well back to front and that can come across as a bit flat sometimes - but the detail is there in that dimension, just somewhat understated. It is noisy though at high gain (tube rush) even after Jim and the folks at Aesthetix went over it and changed out some tubes. I found the new Sovtek low noise tubes to be quieter and no downside replacing previous NOS tubes. The unit does benefit from spending money on a quiet NOS 6922 / 6dj8 pair though.
Eventually I put the jumpers in the lowest gain setting and added a ZYX pre-pre for loading my UNIverse cartridge and now there is zero noise - and a better bass response than going into the IO alone.
From time to time I consider a different unit, but I suspect it will be hard to get a better sound, so my conclusion is the next upgrade is moving to the IO Eclipse upgrade for my unit. I am confident I have one of the best phono stages available and I would not switch for sound quality reasons, only if I went for more flexibile inputs and loading options. At this moment in time, I can live with a single input as I try to listen to the music - and not trying to be an audiophile comparing equipment performance while listening to music!
I am very intrigued to hear how NKj gets on with the Klyne though and how he will characterize the sound against the IO.
Steve
Eventually I put the jumpers in the lowest gain setting and added a ZYX pre-pre for loading my UNIverse cartridge and now there is zero noise - and a better bass response than going into the IO alone.
From time to time I consider a different unit, but I suspect it will be hard to get a better sound, so my conclusion is the next upgrade is moving to the IO Eclipse upgrade for my unit. I am confident I have one of the best phono stages available and I would not switch for sound quality reasons, only if I went for more flexibile inputs and loading options. At this moment in time, I can live with a single input as I try to listen to the music - and not trying to be an audiophile comparing equipment performance while listening to music!
I am very intrigued to hear how NKj gets on with the Klyne though and how he will characterize the sound against the IO.
Steve