Pass XA30.5, X100.5, or Rowland 501 For Revel Gem

Although the Pass amps run warm, they don't get hot enough to burn children or pets in any kind of realistic scenario.

I recently upgraded from Rowland Concerto to Pass XP20/XA160.5 as a result of auditioning the XA30.5 driven by the Concerto as a preamp vs. the Concerto as an integrated, driving Aerial 20T's and sourced by an Esoteric X-01 Ltd.

My impressions relate to both the XA30.5 and XA160.5. The overall sound balance was similar, with the Pass being more coherent and a touch warmer. The Rowland sounded at least as lively/dynamic as the Pass, but the Pass sounds more believable to me.

I saw from another thread that you generally listen at rather quiet levels. In spite of the fairly low efficiency of the GEM's, the XA30.5 would have no problems driving them to much higher levels than you're used to. On the other hand, one of the strengths of these speakers is their ability to play very wide dynamic contrasts without compression. If you get addicted to that, you might change your listening habits and find the extra oomph of the Rowland's are a big plus.

Kenl,

I've never heard the XA30.5 in your system, but it is definitely comfortable with a 4 ohm load.

Your room size and listening habits mean you won't need much power, so yeah I'd think the XA30.5 would be ample, assuming these things don't change.

It's hard to be sure though. The 1.6's measured significantly less sensitive than their rated 86 dB when stereophile reviewed them. (83.7 dB) On the other hand, you don't need as much 1 meter sensitivity for a line source speaker as you do for a point source speaker for the same in-room listening level.

Taking all that into account, my guess is the XA30.5 would have no problem, but I wouldn't buy without hearing it in your room.