SOLD: Raal Requisite HSA1b Amplifier

RAAL Requisite HSA1b amplifier $3200 (firm) plus shipping, PP F&F or Venmo, or check from trusted member.

This amp is just back from a visit to Danny at Raal where it was given new op-amps and a clean bill of health. Upgraded fuse, includes the Raal adapter cable for conventional headphones. Original cardboard box included, there is no hard case. This is a great amp and I’d keep it except I prefer a different amp for my 2 channel so much of the utility of this amp is going to waste. If you have a Jot R or speaker interface and interested to upgrade, read Torq’s review here RAAL-requisite HSA-1b - Switch Drive Amplifier Review

I see no blemishes at all on the amp. Message if you want photos.

Message me any questions. Thank you.


This is a terrific amp for dedicated use with the Raal SR1a “earfield monitors”. I am very happy with mine.


Agreed, and (almost) every conventional headphone I have listened to through it sounds great, and it drives speakers too!

1 Like