RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Border Patrol SEi USB & SPDIF Digital Analog Converter (DAC) Excellent condition Border Patrol DAC. SEi USB and SPDIF inputs and has the factory supplied Jupiter Caps upgrade. The Jupiter caps were a significant upgrade to an already excellent DAC that punches well above its weight. I also fitted a Synergistic Research Orange fuse and a vintage British Mullard EZ80 rectifier valve. Both of these changes provided further improvements. Comes with original packaging, manual, stock power cord and the original caps. Will be double boxed for shipping. There are so many great reviews onli
The BorderPatrol SE-i Digital DAC, a compact R2R ladder design prized for its organic, analog-like flow, rarely surfaces on the used market—HiFiShark listings are sparse, with new prices historically around AUD2,200 for the dual-input top spec back in the day. At AUD1,700 asking, this strikes me as a fair to ambitious price for an unknown-condition unit; you'd typically expect AUD1,200-1,500 in good shape from private sales, assuming no upgrades like the Jupiter PSU.
Before biting, verify the input config (USB, SPDIF, or both?) and test for noisy outputs—those old-school Phillips chips can falter with age, needing 75+ hours burn-in minimum. Insist on the original power supply and remote if listed, plus a solid audition to confirm that signature natural timbre hasn't faded.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
BorderPatrol Audio Electronics traces its origins to 1993 in Brighton, UK, founded by Gary Dews, a British audio enthusiast who began his career selling Audio Innovations tube amplifiers. What started as a personal experiment with 300B single-ended triode (SET) amps evolved into aftermarket power supplies for tube equipment, earning quiet acclaim among enthusiasts for enhancing bass and relaxation without sacrificing tube rectifier purity. Dews relocated to Maryland, USA, in 2005, shifting production to facilities in Waldorf and later Bristow, Virginia, while retaining the brand's contrarian spirit.
The company specializes in tube-based electronics, with a sharp focus on meticulously designed power supplies that define their sound signature. Their lineup features DACs like the ZOLA and SE-i models, employing vintage 16-bit Philips TDA1543 R-2R chips for non-oversampling conversion, alongside amplifiers that prioritize organic flow over hyper-resolution. This tube-centric approach extends to components rejecting digital aggression in favor of lifelike musicality.
BorderPatrol occupies a niche boutique position in the high-end hi-fi market, beloved by purists seeking refined, human-sounding reproduction that defies mainstream trends. Dews' stubborn defiance of conventional wisdom has cultivated a cult following among knowledgeable buyers who value simplicity, natural timbre, and emotional engagement over technical specs, positioning it as an antidote to fatiguing digital playback.
See all Border Patrol listings on RADAR.
StereoNET
Excellent
NZ
StereoNET
Excellent
NZ
StereoNET
Excellent
StereoNET
Excellent
NZ
StereoNET
Excellent
NZ
StereoNET
Like new
