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A clean fully functional Little Dot Mark 3 Preamp Headphone amplifier. the price is where it is due to the tubes it is loaded With. Specifically -Lorenz C3g Gold Pin Tubes. C3g are the absolute winner of small signal pentode tubes They sell over 250 dollars for a nos pair of standard pin closer to 300 for gold pin Lorenz’s if you can find a set. Originally developed for the under sea communication cable between the us and Europe. They have a life span of 50,000 hours compared to 5,000 max for any other pentode.-Sovtek 6H30PI output tubes new they are 100 dollars per matched pair. It is the ultimate small output tubes developed to work much better than standard 6922 or 6N1P-also included is a pair of c3g to 6ak5 adapters and a pair of 7 pin socket savers
The Mark 3 sits in Little Dot’s respected OTL-style tube amp lane, a model people buy for its musical, spacious midrange and tube-rolling flexibility. At US$700, this is well above the recent used median of US$130 and the 75th percentile of US$192, so the asking price is ambitious unless the tube package is truly exceptional and documented.
The upside here is the included US$550 worth of new and NOS tubes, which can materially change the value if they’re desirable, tested, and exactly what’s listed. That said, a buyer should verify the tube brands, hours, and whether the amp itself is serviced or fully original, because the premium only makes sense if the tube cache is real, usable, and not just a loose pile of extras.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Little Dot Audio is a Chinese hi-fi brand best known for its tube electronics, with early community references going back to the mid-2000s; the exact founding year and founder are not clearly established in the available sources, so I can’t verify a more precise origin with high confidence. It has long been associated with direct-to-consumer sales and a pragmatic, enthusiast-driven approach rather than a heavily branded international presence.
The brand’s core focus is headphone amplifiers, especially tube and hybrid designs, and it is also mentioned in connection with related amplifier variants across portable and desktop formats. In practice, Little Dot is most often discussed for affordable tube amps aimed at headphone listeners who want a first step into valve sound, with models such as the MK II, MK III, and newer balanced/hybrid iterations drawing the most attention.
In the market, Little Dot sits in the niche value segment: not high-end luxury, but not disposable entry-level gear either. Its reputation is built on strong price-to-performance, tube-rolling appeal, and solid build quality for the money, making it a familiar name among budget-conscious enthusiasts and vintage-sound fans rather than mainstream buyers seeking a broad product catalog.
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