Name: Fosi Audio GR70 Headphone Amplifier
Brand: Fosi Audio
SKU: 67ab208a832ed8000a635b3a
Price: 1499.0 HKD
Availability: InStock

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Fosi Audio GR70 Headphone Amplifier

Pure Tube Amplification
Adjustable Impedance and bass & treble Control
2-in-1 Headphone Amp and Preamp
Supports 16–300Ω Headphone Impedance

2 years warranty

Until 2026-02-28T16:00:00.000+00:00 Fosi Audio discount (exclude fosi audio bundle set) on selected categories

Free shipping for orders spending over HK$500 [Non-Member] on order

HK$1,499.00

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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: Features two 5654W and two 6Ж4 vacuum tubes for two-stage amplification. The 5654W tubes boost voltage, while the 6Ж4 tubes handle power amplification. This setup delivers balanced, transparent, and textured sound

User-Friendly Design: 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: It supports low and high impedance modes switching to adapt 16Ω-300Ω 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: 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 ≥97dB—offering warm, clean, and dynamic sound