Update time:
I’m really pleased with the Audio Research GS150 amplifier. It drives my Martin Logan 13A’s so much better than my former amps, McIntosh MC275. Even though I was using pair of 275’s, which are rated for the same power output as the GS150, the GS150 sounds more powerful. It also has much better high frequency definition and extension, so much so the Logan’s sound like they have a blanket over them when driven by the Mac’s.
And now for the good part………..soundstage depth………….the GS150 definitely has this in spades producing images that float in space with more of a 3D effect than the Mac’s could produce. As for the bottom octaves I really don’t notice any big differences as the Logan’s have built in amplification for their woofers.
But of course this upgrade just has me itching to make another upgrade……..maybe a ARC Ref 6 pre to drive the GS150!!!
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