“Its impact on sound quality, even in my city lcoation with a clean incoming supply, was subtly wonderful,” writes editor Noel Keywood. “For all those without a power station nearby, sound quality improvement should be even greater.” 

“The AC-2K has some unique features,” notes Keywood. “Most surpisingly, the whole unit is cryogenically treated, both iron core and copper wire windings.”

“Inside is a very large transformer that splits incoming 240V mains from a wall socket into two 120V supplies relative to earth. The hi-fi still sees 240V but there are now two power lines and ground leakage noise currents cancel, something I have confirmed with a spectrum analyser.”

“The AC2K smoothed and deepened the sound stage, putting space between instruments… The performance took on greater focus and insight, bringing a sense of stronger dynamic life.”

“What I was not expecting – and that hit me straight away – was profound bass power and resolution. The opening bass of Fleetword Mac’s Dreams (24/96) thundered through the room – where did that come from I wondered?”.

“The AC-2k is a well built and finished unit, its voltage output display is attractive too. With compact dimensions it can be easily accommodated and runs silent without consuming power when switched on. So fit and forget.”

“Impressive…. I have to give it full marks.”

Read Noel Keywood’s review in full in the September issue of Hi-Fi World.

Find out more about the AC-2K and track down your nearest dealer at www.connected-fidelity.com