RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Wegen Umstiegs auf eine 300B-Endstufe verkaufe ich meine Air Tight ATM-1S. Dieser excellente Röhrenverstärker kann sowohl als Vollverstärker sowie als Endstufe genutzt werden.
Er besitzt zwei Line-Eingänge.
Ich habe das Gerät im Dezember 2024 als Vorführgerät bei einem autorisierten deutschen Air-Tight-Händler gekauft (Originalrechnung liegt vor).
Der Verstärker kommt mit zwei kmpl. Sätzen Röhren (Original Air Tight unbenutzt, Upgradesatz von BTB: Gold Lion, S4A) und der OVP.
Der ehemalige NP lag bei 9.400€
Das Gerät kann an einer hochwertigen Kette zur Probe gehört werden. Persönliche Abholung vor Ort ist bevorzugt. Ein versicherter Versand in der OVP ist auf Kosten und Risiko des Käufers möglich.
Da es sich um einen Privatverkauf handelt, sind Gewährleistung und Rücknahme ausgeschlossen.
Excellent condition makes €5,600 look good to fair rather than cheap for this model, which launched at a much higher level and has long sat in boutique-amp territory. In used-market terms, that’s not a bargain-bin score, but it is a sensible ask if the amp is clean, fully functional, and comes with proof of service or recent tube health.
What makes it worth chasing is the Air Tight house sound: refined, low-power EL34 push-pull drive with excellent texture, control, and vocal realism, plus proper build quality and easy user biasing on the later design. At this price, the upside is mainly owning a respected Japanese valve integrated in strong cosmetic shape; I’d especially value original packaging, manuals, and a fresh service history if those are included.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Air Tight emerged from the vision of Atsushi Miura, a veteran Luxman engineer who joined the company in 1956 and championed vacuum tubes amid the shift to transistors. Retiring in 1985, Miura partnered with Masami Ishiguro to found A&M Ltd. in Osaka, Japan, launching the Air Tight brand in 1986. Their debut ATM-1 power amplifier, a push-pull EL34 design, embodied a philosophy of direct signal paths, point-to-point hand-wiring, and premium components, rejecting printed circuit boards for purest sound.
The brand specializes in artisanal tube amplifiers, preamplifiers with phono stages, and select integrated models, all hand-assembled in small batches by father and son in their Osaka facility. While primarily focused on amplification, Air Tight emphasizes tube-centric purity over broad categories like speakers, DACs, or headphones, prioritizing meticulous construction for uncolored, lifelike reproduction.
Positioned firmly in the high-end niche, Air Tight commands reverence among audiophiles for its confidential, zero-compromise production and reference-grade performance. Legendary status stems from decades of global appeal, from early exports to Hong Kong and China, making it a boutique choice for discerning buyers seeking Japanese precision and tube authenticity over mass-market volumes.
See all Air Tight listings on RADAR.
