Schiit Freya +

@mdrone I recall you asking about the Audio Mirror preamplifier in the past. That unit is leagues above the Freya+. I’ve owned the Freya as well as the Freya+. While the Freya+ was an improvement, it is still fairly fatiguing and isn’t even close to the best in terms of coherence. For a similar price, look for a preowned Rogue 99 Magnum preamp. It has a similar circuit design with four 6SN7, but it uses very good parts and it’s performance is a significant step above.

FWIW I don’t think the Freya+ punches above its price point in any way aside from the convenience of switching between passive, JFET and tube. 

I have not tried that series of Rogue electronics, unfortunately. That said, it’s a 12au7 preamp. One recommendation, if you are capable of spending ~$3K on a preamp, is to look for a preowned PS Audio BHK preamplifier. Along with Vlad’s, it was the best preamp I’ve ever used in its price range. You can use it with 12au7, 6922 variants, and with an adapter even 6SN7. I tried many other preamps from Audio Research, Viva Linea, McIntosh and others and only owned two preamps that beat it (Modwright LS-36.5 DM, and the T+A P 3000 HV / SDV 3100 HV). 

I’ve owned the SWL 9.0 SE twice. It is a much thinner sounding preamp than the others you are looking it. IME not Dan Wright’s best work, and I’ve owned nearly everything he’s made. Consider his LS100 instead.