SW1X Audio Design DAC IV Special DAC

The SW1X DAC IV Special is a reference-tier non-oversampling digital converter built around a selected Philips TDA1541 R2R ladder chip operating with zero digital domain filtering. Serving as the dynamic heart for uncompromising two-channel audio chains, this component reconstructs recorded music with organic acoustic realism rather than clinical processing. Its zero-feedback Class A valve output stage combines 6J5 driver triodes with 6V6 beam power tubes, fed by a 5U4G directly heated diode rectifier in a twin-choke-filtered quasi-dual-mono power supply. Setting it apart from standard editions, the Special designation upgrades the signal path with proprietary, all-copper-wound Super HiB DC core signal output transformers rather than conventional M6 EI cores. This Special specification also adds premium Black Gate decoupling capacitors, copper-foil-in-oil interstage capacitors, and discrete shunt-regulated rails to maximize low-end grip and tonal depth.

Critical consensus highlights its staggering dynamic bite and uncanny ability to render instruments with physical, in-the-room presence. Reviewing for INDULGR Magazine, Grover Neville declared the converter quite simply the best digital source for hi-fi he had ever heard. Audiophile commentators consistently applaud its freedom from digital glare, noting that it delivers the textural richness and continuous musical flow of high-grade analog tape.

Investing in this artisan British design restores genuine breath, dimensional nuance, and emotional intimacy to your digital library. By bridging valve richness with explosive transient impact, it reveals subtle recorded cues with breathtaking spatial realism. It remains an extraordinary centerpiece for the discerning listener seeking an authentic analog experience.

Brand	SW1X Audio Design
Type	DACs
MSRP	$33,375.00
Serial #	211XDE81
Cosmetic Rating	7 - Good cosmetic condition with some minor visible cosmetic wear including some faint scratches on the faceplate, more prominent scratches on the top and sides of the chassis, blemishes on the top plate, and a minor dent on the right side. Despite these cosmetic imperfections, this premium DAC still functions perfectly and would make a great addition to any setup.
Functional Notes	Operational condition of this item is excellent, fully tested and no issues found.
Age	3 years
Owners	2
Service History	None