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This looks like a fair-to-good ask, not a steal, with some room for a quick buy if the cable is complete and clean. New/retail references for this Sennheiser 2-pin iHP-35S typically land around US$120-US$160 equivalent, so US$92 sits comfortably below that and is decent used value rather than an aggressive bargain.
What makes it worth a look is the ADL/Furutech build: these are well-regarded upgrade cables for HD600/650-era Sennheisers, with a nice step up in fit and finish over stock leads and a long history among enthusiasts. The upside is strongest if it’s the right length and termination for your rig, and if the connectors are tight and the jacket shows no hard use; at this price, a clean, original cable is a sensible buy.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Alpha Design Labs (ADL) is a Japanese audio brand created by Furutech as a more affordable sister line, and its roots are generally placed in the late 2000s rather than as a long-standing standalone manufacturer. Furutech says ADL was created to apply its engineering approach to designs that more people could afford, while outside coverage links the line to Furutech’s Tokyo base and earlier reports describe it as an entry-level brand that later evolved into a broader specialist label.
ADL is best known for compact, function-heavy electronics rather than traditional full-range hi-fi separates. Its catalog has centered on headphone amplifiers, DACs, DAC/ADC units, phono stages, preamps, portable and desktop audio components, plus headphones, earphones, and cables. The GT40, which combined a headphone amp, phono stage, and USB DAC in one box, is one of the products most often associated with the name.
In market terms, ADL sits in the specialist mid-tier to upper-mid-tier lane, with a strong emphasis on clever engineering and value rather than luxury excess. It has earned a reputation among informed buyers for practical, compact designs and solid build quality, but it is not usually treated as a mainstream mass-market brand or a vintage-collector marque. Its appeal is strongest for listeners who want serious performance from relatively affordable, space-saving components.
See all Alpha Design Labs listings on RADAR.
