FWIW - an update on Freya:
In another thread (can’t find it at the moment) I’d commented about some "warbling" heard when Freya was in mute. The other night I noticed I could hear this noise from the listening position when Freya had been switched to passive or tube mode and not just when muted. In JFET mode, Freya was/is absolutely dead quiet. Total silence when no signal was being received.
Did a little investigating, turns out the DC wire plug end of the iPower I’d been using on an Aries Mini was causing the noise. Don’t understand why. The interference seems airborne (EMI or RFI?) as opposed to originating through the AC house wiring. When plugged into a different circuit than supports the audio gear, the nearer I bring the iPower’s plug end w/15V adapter to the equipment console and also when I plug it into the Aries Mini, the noise can be heard from the left speaker - even if the Freya is off. Thinking it might be something the unshielded IC on the left powered sub is picking up. Need to check that out further. Anyway, I started a ticket with iFi though the iPower is out of warranty and certainly for the low price could just buy another, but would prefer to understand if this is "normal" or indicates a defective unit. Any input on the topic would be appreciated.
Bottom-line, apart from some noisy as-supplied 6SN7 tubes (which Schiit replaced quickly and with no hassle). Freya is very quiet. Having replaced the stock tubes with a pair of NOS RCAs and some NOS Russian 6SN7s from Upscale there’s no noise associated with tubes. I’ve been trying a low power Class A amp with Silverline Prelude Plus speakers so need the gain tubes provide. Very pleased with the results from this combination using Freya in tube mode.
In another thread (can’t find it at the moment) I’d commented about some "warbling" heard when Freya was in mute. The other night I noticed I could hear this noise from the listening position when Freya had been switched to passive or tube mode and not just when muted. In JFET mode, Freya was/is absolutely dead quiet. Total silence when no signal was being received.
Did a little investigating, turns out the DC wire plug end of the iPower I’d been using on an Aries Mini was causing the noise. Don’t understand why. The interference seems airborne (EMI or RFI?) as opposed to originating through the AC house wiring. When plugged into a different circuit than supports the audio gear, the nearer I bring the iPower’s plug end w/15V adapter to the equipment console and also when I plug it into the Aries Mini, the noise can be heard from the left speaker - even if the Freya is off. Thinking it might be something the unshielded IC on the left powered sub is picking up. Need to check that out further. Anyway, I started a ticket with iFi though the iPower is out of warranty and certainly for the low price could just buy another, but would prefer to understand if this is "normal" or indicates a defective unit. Any input on the topic would be appreciated.
Bottom-line, apart from some noisy as-supplied 6SN7 tubes (which Schiit replaced quickly and with no hassle). Freya is very quiet. Having replaced the stock tubes with a pair of NOS RCAs and some NOS Russian 6SN7s from Upscale there’s no noise associated with tubes. I’ve been trying a low power Class A amp with Silverline Prelude Plus speakers so need the gain tubes provide. Very pleased with the results from this combination using Freya in tube mode.