90%
AIR TIGHT ATM-1 2024 edition New
Valves employed: 1/12AT7(ECC81), 2/6CG7 (6FQ7), 4/EL34
Rated output: 35W+35W (1kHz/THD<5%) Frequency response : 20Hz~30kHz(-1dB/30W) Input impedance : 100kΩ Input sensitivity : 700mV(35W) Dumping factor : 6.7(1kHz/1W) Power consumption : 250VA Dimensions : 365mm(W) x 305mm(D) x 225mm (H) Weight : 21.5kg
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AIR TIGHT ATM-1 2024 edition New
AIR TIGHT ATM-1 2024 edition New is a compact yet heavyweight tube power amplifier that channels classic EL34 authority into a remarkably transparent, musical presentation. Alexander Aschenbrunner highlights its naturalness and ability to recreate live ambience, powered by 2×35 W of unfazed output and precise imaging. The sonic signature favors purity, midrange immediacy and lively treble, with dynamics and spatial cues that let recordings breathe. Construction is bespoke: Tamura output transformers, hand-wound oiled-paper choke and mains transformers, and point-to-point wiring deliver rock-solid build and bias stability. With a single RCA input and no remote, the ATM-1E is aimed at analog-focused systems and efficient loudspeakers; it rewards listeners seeking artisanal engineering and tube-centric musicality.
Pros
- Premium handcrafted construction with Tamura output transformers, in‑house hand‑wound choke and mains transformers, and point‑to‑point wiring.
- Highly musical and transparent sound with excellent imaging and live‑ambience retrieval.
- Confident dynamics and stable power delivery from the EL34 push‑pull stage (2×35 W) that suit efficient loudspeakers.
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Cons
- Only one RCA input and no remote control—limits connectivity for multi‑source systems.
- Premium price and modest wattage mean best results with efficient speakers; may not suit systems needing high headroom.
Sound Quality
89/100
Dynamics
88/100
For a tube amplifier delivering two times 35 W the ATM-1E is reported to show 'unfazed power delivery' and palpable authority — reviewers note you 'can really feel it.' The EL34 output stage and robust iron-core transformer give the amp solid transient presence and convincing slam for its power class. No reviewer reported running out of headroom or loss of control; given the medium-power tube topology the dynamics performance is excellent for its category.
Soundstage Imaging
90/100
The ATM-1E is credited with excellent atmosphere transfer and nuance (the reviewer cites trumpet detail and recreating the live Muffathalle performance), indicating strong imaging and depth for a tube amp. Channel coherence and the ability to convey live ambience were explicitly admired, suggesting stable imaging even with emotive recordings. The amp preserves spatial cues and scale well for its power/topology.
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Build Quality
93/100
Construction is top-tier: Tamura output transformers, in-house hand-wound oiled paper-wrapped choke and mains transformer, extensive point-to-point wiring and hand-soldering (no PCBs) — all signs of premium craftsmanship. The 21.5 kg iron core and careful bias stability ('I didn’t have to change anything in the bias setting') underline exceptional PSU and mechanical build quality. The chassis and component choices are clearly high-end and appropriate for the price class.
Value for Money
86/100
Reviewer lists price at around €12,000 and the amp provides 2 x 35 W (EL34), but gives no explicit value judgment. At ~€12k for a 35 W/channel tube power amp this is a premium price compared with many solid‑state alternatives, yet the reviewer highlights exceptional build, bespoke transformers and high-end sonics — suggesting the price is consistent with high-end tube peers. Because the reviews do not state whether it is 'worth' the price, the assessment uses a neutral baseline.
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