Fosi Audio GR70 HiFi Tube Headphone Amp Preamp, Vacuum Tube Amplifier with 5654W×2 & 6AC7×2, 3.5mm + 6.35mm Audio Output for Home Audio

Product Overview Fosi Audio GR70 HiFi Tube Headphone Amp Preamp, Vacuum Tube Amplifier with 5654W×2 & 6AC7×2, 3.5mm + 6.35mm Audio Output for Home Audio is a home audio accessory identified from verified source fields. The description below is limited to source title, verified highlights, and verified specifications captured for this exact listing. Verified Features - So we replaced the 6AC7 tubes with 6Ж4 tubes.Feature1.Pure Tube-AmplificationThe 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 audio2.Replaceable Tubes for Custom SoundFeatures two 5654W and two 6Ж4 vacuum tubes for two-stage amplification. - The 5654W tubes boost voltage, while the 6Ж4 tubes handle power amplification. - 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. Verified Specifications Brand is Fosi Audio; SKU is 4638233007_MY-26078143177 input_voltage 12v hifi_connectivity 3.5MM power_consumption 1-500 number_of_channels 2 Model GR70 warranty 2 Years; Note is The 6AC7 vacuum tube is out of stock; Model is GR70Bass and Treble Adjustment: YESTubes: 6Ж4 ×2, 5654 ×2Signal Input Mode: RCA. Verified Application Note Check the captured model, size, voltage, material, or fitment details against the intended item before purchase or installation.