The Torii is a respected single-ended, low-wattage tube amp with a big following for tone, texture, and holographic imaging. At US$4,000, this asking price is right in line with the current new Torii MK5 retail level of about US$4,195–US$4,195, so for an older used unit it reads as fair to a touch ambitious unless it’s especially well-optioned or exceptionally fresh.
What makes it worth a look is Decware’s cult-level build quality and the amp’s reputation for making efficient speakers sound spacious, lively, and very natural. If the listing includes original packing, recent service, premium tubes, or a transferable spot in a long waitlist era, that adds real value; if not, I’d want clear confirmation of age, tube hours, and any noise or hum before paying top dollar for an unknown-condition piece.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.