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Fosi Audio GR70

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Fosi Audio GR70
Colour
Typeportable
Tube
Specs
Headphone impedance16 – 300 Ohm
Power (32 Ohm)300 mW
Frequency range20 – 20000 Hz
Signal to noise ratio97 dB
Functions and features
Bass control
Treble adjustment
Level adjustmentwheel
Connectors
InputsRCA
Headphone outputs1x mini-Jack (3.5 mm) шт
1x Jack (6.35 mm) шт
Power source
Power typeUSB powered
Official Websitefosiaudio.com
Added to E-CatalogMarch 2026
The power depends on the power supply, which is not supplied with all configurations.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.

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Fosi Audio GR70 Tube Headphone Amp - AU GR70-AU-12V

Pure Tube-Amplification: The GR70 headphone tube amp combines vintage charm with modern tech, delivering authentic tube essen... morece. Perfect for headphone enthusiasts, it pairs excellently with over-ear and in-ear headphones for superior audio Quad Tubes: Features two 5654W and two 6Ж4/6Ж8 vacuum tubes for two-stage amplification. The 5654W tubes boost voltage, while the 6Ж4/6Ж8 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
Fosiaudio.com
Delivery: to Redlands
Report
$189.99

Fosi Audio GR70 Headphone Amplifier

The Fosi Audio GR70 is a tube headphone amplifier and preamp that blends vintage tube warmth with modern features. It suppo... morerts both low and high impedance headphones and includes tone controls, a large volume knob, and versatile input/output for desktop systems. Designed for users who want more character from their headphone listening or want a tube-flavored preamp stage.
Parts-express.com
Delivery: to Redlands
Report
$199.99

Fosi Audio GR70 Tube Headphone Amp - US GR70-US-12V

Pure Tube-Amplification: The GR70 headphone tube amp combines vintage charm with modern tech, delivering authentic tube essen... morece. Perfect for headphone enthusiasts, it pairs excellently with over-ear and in-ear headphones for superior audio Quad Tubes: Features two 5654W and two 6Ж4/6Ж8 vacuum tubes for two-stage amplification. The 5654W tubes boost voltage, while the 6Ж4/6Ж8 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
Fosiaudio.com
Delivery: to Redlands
Report
$199.99

Fosi Audio GR70 Tube Headphone Amp - EU GR70-EU-12V

Pure Tube-Amplification: The GR70 headphone tube amp combines vintage charm with modern tech, delivering authentic tube essen... morece. Perfect for headphone enthusiasts, it pairs excellently with over-ear and in-ear headphones for superior audio Quad Tubes: Features two 5654W and two 6Ж4/6Ж8 vacuum tubes for two-stage amplification. The 5654W tubes boost voltage, while the 6Ж4/6Ж8 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
Fosiaudio.com
Delivery: to Redlands
Report
$199.99

Fosi Audio GR70 Tube Headphone Amp - UK GR70-UK-12V

Pure Tube-Amplification: The GR70 headphone tube amp combines vintage charm with modern tech, delivering authentic tube essen... morece. Perfect for headphone enthusiasts, it pairs excellently with over-ear and in-ear headphones for superior audio Quad Tubes: Features two 5654W and two 6Ж4/6Ж8 vacuum tubes for two-stage amplification. The 5654W tubes boost voltage, while the 6Ж4/6Ж8 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
Fosiaudio.com
Delivery: to Redlands
Report
$199.99
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