Is the XA25 a realistic option for LRS’s?

Thanks @russ69 

From what I understand the nominal watts rating is less important than the amps ability to deliver current without sagging. 
The XA25 is 25wpc into 8 Ohms but 50wpc into 4 Ohms and 100wpc into 2 Ohms.

It’s reportedly stable into 0.5 Ohms…. Which means it has the ability to shoot out a lot of current.

The LRS are pretty much straight 4 Ohm across the band with some dips down into the 3 Ohm territory 

Pass Labs specifies the XA25’s output power as 25Wpc into 8 ohms and 50Wpc into 4 ohms (both equivalent to 14dBW). However, as you can see in figs. 4 and 5, the amplifier exceeded its specified power output at the clipping point, which we define as when the THD+noise equals 1%. At that THD+N percentage the XA25 delivered 80Wpc into 8 ohms (19dBW) and 130Wpc into 4 ohms (18.1dBW).

from john atkinson’s lab test as part of stereophile’s review

pass labs class a power output ratings need to be understood in detail, they are extremely conservative

lrs is a 4 ohm resistive load...

sidebar point - xa25 is substantially more powerful than the fw f7

whether the xa25 will suitably drive lrs's is a function of the listening room, loudness level desired, music played.... 

I have had both the f7 and the xa25.  they  sound very different.  have you heard them because the sound is important.  after getting the xa25 I sold the f7 because I never listened to it.  the xa25 is that much better to my ears than the f7.  As a side note they are hot.  the xa25 is like 4 60 watt light bulbs being on so it needs some room to disperse the heat but it is one of the best amps I ever heard and owned. 

JH

i would concur

the xa25 sounds wonderful, i have it along with an f5, xa30.5 and int60

the 25 30.5 and 60 all drive my maggie 1.7i and 3.7i very comfortably, and sound beautiful... my favorite is the 30.5, it has the sweetest and most tactile treble and midrange ... and has the benefit of balanced inputs, which i value

+1 jjss49.