vacuum tube headphone amp
  1. Apos Audio

    Introducing the Apos Ray Vacuum Tubes: Rekindle Your Love for Rich, Warm Sound

    Hi all, We're excited to share the launch of a new product we've been working on at Apos: The Apos Ray Vacuum Tubes. These are not your regular tubes–they’re brand new, hand-selected, and tested to meet our rigorous quality standards, unlike the unpredictable quality of the New Old Stock (NOS)...
  2. 5

    Is it a good idea to leave my tube amp on, or turn it off when I'm not around?

    I have a Douk Audio P1 Tube amplifier. I turn off the amp at night, but leave it on all day, even though I'm not at the computer. Should I turn off the amp when I leave the computer, or should I leave them on? I ask this because vacuum tubes have a lifespan of around 5,000 hours, and if the...
  3. hamcha

    Howdie from another new member (Grado fan, tube virgin)

    Hi HFF Started down the rabbit hole of headphone and tube amp exploration. I'm a Grado fan (SR60, SR225e) and looking for my first tube amp that is less than $200 to tame the high-end of my headphones. Funny as I really didn't consider the high-end and sibilance till learning more. Knowledge...
  4. Andykong

    Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91)

    Cayin HA-300MK2 Transformer Coupled Direct Heated SET Class A Balanced Driven Vacuum Tube Headphone Amplifier The Cayin HA-300MK2 is finally here. The new Cayin flagship vacuum tube headphone amplifier is scheduled to debut at CanJam Singapore 2022. Like its predecessor, the HA-300MK2 is a...
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