Marc Mickelson recently published an excellent review of these ARC amplifiers on his website www.theaudiobeat.com.

He starts off with “Unleashed on audiophiles in 2010, the Reference Anniversary was Audio Research’s most ambitious preamp ever and the only limited-production component the company made in its 40+ years in existence. So it will come as no surprise that the Reference Anniversary also represents a fulcrum point for the company, as the Reference products that were PRA (post Reference Anniversary) were rather different in design and sound from even the products that immediately preceded them.”

If you want to read the full article, visit www.theaudiobeat.com here.

Audio Research Reference 250