Pass X150.5 vs. X250.5


Using Vandy 3a sig with Pass 150.5 currently, and average listening level brings meters to around 11:00. Wondering if there was anything to gain by upgrading to 250.5. Just seems to get a bit harsh sounding on peaks.

Thanks.
128x128ccanino
Acurus makes a very important point and I agree 100%.
What is the location of your volume control knob?
Does your meter move from class A to AB?
Yes, Pass meters only reflect Class A to Class A/B (unlike McIntosh meters). if it is moving a lot, you probably are underpowering your speaker.
A Vandersteen 3A? In that size room? You might be underpowering, but I would think one is listening too loud if that is the case with an X150.5 - no? - I mean, that is a lot of power for that speaker especially a 87db /nominal 6ohms (I would think)
Ok, meter does not exactly BOUNCE, but the does move up from its static position at 9:30 to about 11:00 when it is at it's loudest. Doesn't really seem TOO loud, but that's a matter of opinion, unless it's causing hearing damage..... Anyway spoke to the folks at Pass Labs today and they said I COULD be running out of power, maybe the X250.5 is the way to go but borrow one first and see if that changes things. Sensible, those guys. They felt that meters hitting 11:00 was close to running out of power. I was kind of surprised at that, but who'd know better than them? Anyway they also suggested a change of wire to the upper section of speaker an another way of taming any harshness, but I don't think that would really help based on other cable I have used in the system. Just as an aside I originally had a pair of Aleph Os, but I sold them for the 150.5 to get more detail and dynamics, and that was exactly what I got. Another reason for looking into the 250.5 is that there are currently 2 in NJ on the list, and that's where I am, so It'd be very simple for me to buy one of them. Thanks for the info so far guys!