Drop has the SMSL SP200 THX headphone amp on sale, US $140. (Down from $290, although the "reg retail" of $290 might be a bit high considering Apos has it for $220.)
- Drop: https://drop.com/buy/smsl-sp200-thx-aaa-888-balanced-headphone-amp
- Amir's review: https://www.audiosciencereview.com/...d-measurements-of-smsl-sp200-thx-hp-amp.9242/