Is the XA25 a realistic option for LRS’s?


Greetings 

Posting this in speakers since the main focus is the Magnepan LRS’s

I’ve seen a handful of reviews of the LRS where they were driven/tested with the Pass XA25….but rarely read about that pairing from actual users.

I’m considering an XA25, not for the LRS per se, but since I have them it would be great if they truly played well together.

(I’m also considering an F7 as opposed to the XA25 but Im pretty sure those won’t pair well with the LRS)

My other speakers are Fritz Carbon 7’s

Despite the huge price differential between the LRS and the XA25, will they make a good combo in a room that’s about 12’x18’x8’?

thank

JS

j_andrews

Sorry but 25 wpc is not enough for the LRS. Unless you play at VERY low levels. 

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....