X 30.5 or X 150.5? (What would you buy?)

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Recently, was able to obtain a pair of Cary Silver Oak Model One speakers. They are outstanding performers. The Cary's come equipped with 2 SEAS Excel Magnesium woofer/mid drivers per side, along with SEAS Excel soft dome tweeters. They are 88db@1 watt.

So, the question I had to answer was: Go with the XA 30.5 or X 150.5? After careful deliberation, decided to go with the XA 30.5. I’m pretty sure that they should have enough power for listening to most all types of music at moderate levels.

The question I have is as follows:
Are the XA 30.5 and X150.5 essentially the same amp, with different voltage rails and bias settings? The Threshold SA/3 and S300 were more or less the same (the late model with optical bias), and was able to successfully re-configure the S300 to SA/3.

Which amp would you pick, and why would you pick one over the other?
 
considering that they're on wrong side of 90db/W/m (at least for me 😉 ) , in this case more is merrier

edit :

on second thought ........... just take cheaper one

both have plenty of oumph .......


Papa's website states that the XA 30.5 works with speakers above 87 db.


From the Cary spec sheet:

Dual Parallel Drive Magnesium mid-bass drivers, silk dome tweeter with neodymium magnet, air core heavy duty inductors, oil and foil capacitors, PHASE STABLE 3 r/d order crossover with 3.0 kHz crossover frequency.

So, I think the XA 30.5 would be OK. The price is the same for the X 150.5 and XA 30.5
 
Thank you, Mr Pass!

It goes with a couple of other Class A amps from Papa's past efforts:

1) Threshold 400A
2) Threshold SA/3
 

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Received the XA 30.5 the other day, and could not be happier with its performance. This is without question the finest sounding amp I’ve ever heard. 😎

Many thanks, Papa. This is an outstanding performer. Now I have three generations of Class A amps (400A, SA/3, and XA 30.5).
 
Thanks Redwingnine for your cents. X250 just bought for 2500 shipped and now XA30.5 asking for 3500 shipped, then another option is the new X250.5 for 3900 shipped. But I'm having the feeling that XA will give me the most musical and more like tube sound. If all of these won't sound right, will have to give up more and back to ARC tube. Seeing these pricing, will you still pick the XA30.5 like I feel. Thx-Best!
 
Thanks Redwingnine for your cents. X250 just bought for 2500 shipped and now XA30.5 asking for 3500 shipped, then another option is the new X250.5 for 3900 shipped. But I'm having the feeling that XA will give me the most musical and more like tube sound. If all of these won't sound right, will have to give up more and back to ARC tube. Seeing these pricing, will you still pick the XA30.5 like I feel. Thx-Best!

That is why I recommeded the XA 30.5. I was a ARC owner for years, and the XA 30.5 (to me) is a better overall option. It shares the midrange magic of ARC, with better treble, and tighter/deeper bass. 😎

And, no tubes to go cherry!😱
 
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