Airtight ATM-300R
Best tube amplifier for audiophiles seeking pure, realistic musical reproduction.
This amplifier is a masterclass in extracting the raw, uncolored soul from the 300B valve. While its hand-crafted, purist approach demands a commitment to a specific sonic aesthetic, the result is a level of tonal realism and musical intimacy that modern, mass-produced gear simply cannot replicate.
$16995.00
at
Stereophile
Who it's for
- Audiophiles prioritizing vocal realism and natural acoustic instrument textures
- Collectors valuing heirloom-grade craftsmanship and timeless aesthetic design
- Listeners using high-sensitivity speakers seeking refined, controlled low-end performance
Who should skip it
- Listeners demanding high-impact dynamics for complex orchestral or rock music
- Owners of low-sensitivity speakers requiring significant power for room-filling volume
- Budget-conscious buyers wary of premium pricing and recurring tube maintenance
Performance breakdown
Timbral Realism
Captures the authentic harmonic texture of acoustic instruments with breathtaking precision.
Build Integrity
Hand-crafted construction and robust chassis ensure decades of reliable, high-end performance.
Valve Musicality
Extracts the legendary warmth and liquid midrange inherent to 300B tubes.
Component Quality
Premium internal parts and hand-wound transformers define its uncompromising sonic signature.
Power Efficiency
Low wattage output requires highly sensitive speakers to reach full potential.
Signal Purity
Meticulous circuit design eliminates artificial coloration for a transparent listening experience.
Key Specs
Power Output
9W + 9W
Total Harmonic Distortion
<10%
Input Sensitivity
290mV
Dumping Factor
7
Frequency Response
30Hz - 40kHz (-1dB / 1W)
Dimensions
430(W) x 275(D) x 245(H)mm
Weight
24.5kg
Amplifier Class
Class A
Output Connector Types
Binding Post
Input Connector Types
RCA
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