Fosi Audio GR70 Tube Headphone Amp Preamp, Authentic Tube-Amplification
Mini HiFi Preamplifier for Home Audio, 3.5mm & 6.35mm Jacks Supporting 16-300 ohms Impedance.
R 6 890.00
Takealot · checked Today
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- R 6 890.00
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- R 6 890.00
- Highest seen
- R 6 890.00
- Last change
- R 0.00
- First indexed
- 07 Sep 2026
- Retailer
- Takealot
Description
About this itemPure 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 6AC7 vacuum tubes for two-stage amplification. The 5654W tubes boost voltage, while the 6AC7 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 16 -300 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
Quad Tubes: Features two 5654W and two 6AC7 vacuum tubes for two-stage amplification. The 5654W tubes boost voltage, while the 6AC7 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 16 -300 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
Integrating Vintage Charm with Modern 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;
- Max Power Output: 300mW@32 ;Rated Power Output: 90mW@32 ;Power Input: DC 12V/3A;
- Headphone Impedance: Low Mode: 16 -120 , High Mode: 120 -300 ;
- SNR 97dB; Frequency Range: 20Hz - 20kHz ( 1 dB);
What's in the box
1 x Fosi Audio GR70 Main Unit
2 x 6AC7 Vacuum Tubes
2 x 5654 Vacuum Tubes
2 x Tube Protection Covers
1 x 12V/3A Power Supply
