[🎶SG] FOSI AUDIO GR70 - Tube Headphone Amplifier

🎵 OFFICIAL FOSI AUDIO DEALER - 1 Year Local Warranty & Aftersales Support

Contact Us:
📞 WhatsApp/Call us @ 83329084 https://wa.me/6583329084
📧 Email us @ sales@samaudiosg.com
🗺️ Visit Us @ CT HUB 2, 114 Lavender Street, #03-68 (Lobby 2), S(338729) - Demo units available  

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Fosi Audio GR70

> Featuring two replaceable 5654W and two 6Ж4 vacuum tubes, it offers a customizable auditory experience. Immerse yourself in the authentic warmth and smoothness of analog audio.

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Descriptions:

> 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

> Replaceable Tubes for Custom Sound
> 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.Users can swap tubes to explore different sound effects, adding playability and flexibility for personalized customization.

> 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

> Free Switching Impedance Mode
> 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

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Specifications:

> Model: GR70
> Bass and Treble Adjustment: YES
> Tubes: 6Ж4 ×2, 5654 ×2
> Signal Input Mode: RCA
> Output: 3.5mm headphone + 6.35mm headphone + RCA full-range signal output
> Rated Output Power: 60mW
> Max Power Output: 300mW @ 32Ω
> Headphone Impedance: Low Mode 16Ω - 120Ω / High Mode 120Ω - 300Ω
> Input Voltage and Current: 12V 3A
> Signal-to-Noise Ratio: ≥97dB
> Frequency Response: 20Hz-20kHz (±1dB)
> Dynamic Range: 97dB
> THD+N: RCA Out ≤ 0.26% / Headphone Out ≤ 0.5%

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