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Compared with a typical used DAC at this price, this asks premium money: US$900 versus a recent median of US$123 and 75th percentile of US$201, so it lands well above the usual market and is ambitious unless the upgrades and condition are exceptional. It’s not a bargain; it needs to justify itself on provenance and execution rather than price alone.
The appeal here is the Cosecant’s reputation as a musical, full-bodied non-oversampling DAC, and the Mullard tube angle can be a nice draw for listeners chasing texture and dimensionality. If the upgrades are properly documented, the unit is well cared for, and the included setup is complete, it could still suit a buyer specifically hunting this sound, but at this level I’d want strong proof of originality, service history, and why it deserves a near-top-tier used ask.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Captain Stanley R. Mullard founded the Mullard Radio Valve Company in 1920 in the United Kingdom, initially to produce high-power transmitting valves for the British Admiralty. Drawing from his engineering background and passion for music, he expanded into audio components, creating vacuum tubes renowned for their reliability and superior sound quality. Acquired by Philips in the 1920s, the brand grew into a dominant force in valves and semiconductors, with production spanning facilities in Mitcham and Southampton.
Mullard focused primarily on vacuum tubes—or "valves"—that powered high-fidelity amplifiers and professional recording equipment, alongside early transistors and audio drivers. Historical products like the 1960s Mullard 510 valve amplifier exemplified their expertise in hi-fi amplification, while their hand-assembled valves became staples in studio and home systems. Though not a modern maker of speakers, turntables, DACs, or headphones, their components influenced entire audio chains.
Today, Mullard holds a revered position as a vintage high-end icon among audiophiles and collectors, celebrated for the "Mullard sound"—warm, detailed, and musical. Reissues and NOS tubes command premium prices in the boutique market, cementing its legacy over a century of craftsmanship amid technological shifts.
See all Mullard listings on RADAR.
Kleinanzeigen
Excellent
eBay UK
GB
eBay UK
GB
StereoNET
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Excellent
DE
eBay Australia
