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Fosi Audio

GR70 Tube Headphone Amp/Preamp

GR70 Tube Headphone Amp/Preamp

$279.99 CAD
$279.99 CAD
Sale Sold out
  • Pure Tube-Amplification: The GR70 headphone tube amp combines vintage charm with modern tech, delivering authentic tube essence. Perfect for headphone enthusiasts, it pairs excellently with over-ear and in-ear headphones for superior audio
  • Quad Tubes:Ā Features two 5654W and two 6Š–4/6Š–8 vacuum tubes for two-stage amplification. The 5654W tubes boost voltage, while the 6Š–4/6Š–8 tubes handle power amplification. This setup delivers balanced, transparent, and textured sound
  • User-Friendly Design:Ā This tube headphone amp preamplifier offers intuitive controls, including a large volume knob, dual-side ventilation holes, bass & treble controls, high and low impedance mode switching, making it versatile enough
  • Two-in-One:Ā It supports low and high impedance modes switching to adapt 16Ī©-300Ī© headphones, and features 6.35mm/3.5mm headphone jacks on the front and RCA Input/Output on the rear for home audio HiFi system integration
  • Compact Yet Powerful:Ā Crafted with a CNC-machined aluminum alloy body, the GR70 is both durable and refined. Despite its compact size, it delivers up to 300mW power output and 1.2V RCA output with SNR ā‰„97dBā€”offering warm, clean, and dynamic sound

IntegratingĀ VintageĀ CharmĀ withĀ ModernĀ Precision

The GR70 is a two-in-one headphone amp and preamp. Easily integrate this tube preamp into your home audio system with its multiple headphone jacks and RCA input/output options.

  • Input: RCA; Output: RCA, 6.35mm/3.5mm Headphone Output;
  • Rated Power Output: 90mW@32Ī©; Max Power Output: 300mW@32Ī©; Power Input: DC 12V/3A;
  • Headphone Impedance: Low Mode: 16Ī©-120Ī©, High Mode: 120Ī©-300Ī©;

What's in the box?

  • GR70 Main Unit *1
  • 6Š–4/6Š–8 Vacuum Tubes *2
  • 5654 Vacuum Tubes *2
  • Tube Protection Covers *2
  • 12V/3A Power Supply *1
  • User Manual
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