FS: a Nuprime HPA 9 preamp with a phono section & headphone amp. In black. Original owner. Perfect. Why I sell is because I've few too many tube headphone amps. But I really like this one, maybe shouldn't sell. Also the phono replaced a Bel Canto phono that cost much more--only tested with MM cartridges. Asking $475. (See ads for matching STA 9 amp & DAC 9) ~Tom Ash