RAAL-requisite HSA-1b True Ribbon Amplifier. Lots of positive reviews. $4,740 MSRP

Although designed to partner their SR1a Earfield Monitors, which by the way is an extraordinary "headphones" that is unlike your typical conventional headphones. You can read more about it on their website or the many reviews about them. The HSA-1b is the other story of this combo. It does offer two additional headphone outlets over the dedicated ribbon outlet for the SR1a so you are not necessarily restricted in terms of headphones usage. Line inputs are a pair of RCA and XLRs on the rear panel with two pairs of speaker binding posts which you can use with a pair of very efficient speakers. Output in 8 ohms is 10W which doubles up to 20W in 4 ohm and 40W in 2 ohm. We did had this pair to some efficient speakers in our store and have to admit, as a standalone integrated amp, it is pretty good sounding amp. There is a voltage selector on the top which allows you to switch between 110V and 220V so you can use this anywhere in the World.

Cosmetically, the HSA-1b is in almost mint condition. Previous owner put in an Audio Magic Ultimate Premier fuse which cost $240 (original fuses will be included). We have the original box and will securely pack it for safe shipping.