Air Tight ATC-5s Preamplifier

The Air Tight ATC-5 Preamplifier packs over 30 years of expertise into a compact, handcrafted design. Built in Japan with a rigid monocoque chassis, hand-wiring, and an Alps gold-plated volume control, it delivers uncompromising signal purity. Its phono stage uses a 2-stage NF-CR circuit for precise RIAA equalization, while independent filtering eliminates distortion and protects speakers. With three line inputs, 12AT7-based line stage, and meticulous engineering, the ATC-5 achieves stunning resolution, wide soundstage, and lifelike reproduction of musical detail and ambience.

Features 

• Valves employed: 12AX7 × 3, 12AT7 × 2
  
• Phono equalizer input: RCA/MM × 2
  
• Input impedance: 47kΩ（Gain 40dB）
  
• Phono equalizer output: RCA × 1
  
• Output impedance: Recommended load more than 47kΩ
  
• Line input: RCA × 3
  
• Input impedance: 47kΩ (Gain 18dB)
  
• Line output: RCA × 2
  
• Output impedance: Recommended load more than 47kΩ
  
• Output voltage: 20V(Load 100kΩ/1% distortion)
  
• Line amplifier distortion: THD 0.02%(1V/1kHz)
  
• Frequency response Phono equalizer: 50Hz~20kHz(±0.2dB) /20Hz-2.5dB
  
• Frequency response Line amplifier: 20Hz~100kHz-1dB
  
• Power consumption: 50VA
  
• Dimensions: 400(W) × 260(D) × 90(H)(tentative)