{"product_id":"gr70-tube-headphone-amp","title":"Fosi Audio GR70 Tube Headphone Amp","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003ePure Tube-Amplification\u003c\/strong\u003e: 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\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eQuad Tubes:\u003c\/strong\u003e 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\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eUser-Friendly Design:\u003c\/strong\u003e This tube headphone amp preamplifier offers intuitive controls, including a large volume knob, dual-side ventilation holes, bass \u0026amp; treble controls, high and low impedance mode switching, making it versatile enough\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eTwo-in-One:\u003c\/strong\u003e 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\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eCompact Yet Powerful: \u003c\/strong\u003eCrafted 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\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"US","offer_id":46116268048614,"sku":"GR70-US-12V","price":199.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":46116268081382,"sku":"GR70-AU-12V","price":189.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":46116268114150,"sku":"GR70-EU-12V","price":199.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":46116268146918,"sku":"GR70-UK-12V","price":199.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":46116268179686,"sku":"GR70-12V-B","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/GR70.jpg?v=1751599674","url":"https:\/\/fosiaudio.com\/it\/products\/gr70-tube-headphone-amp","provider":"Fosi Audio","version":"1.0","type":"link"}