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Pass XA Monoblock Amps

I know there have been many threads on these amps and the different levels of power with each set. To those who owned the Pass XA60.5 and went to the Pass XA100.5 monoblocks, did you feel that the change made a big difference in your system or was it not that noticeable whether played at low to mid level volume levels or high volume. I currently own the Pass 60.5 and am contemplating the Pass 100.5. Some people have suggested that it would take a move to the Pass XA160.5 for it to really make a difference but that would unfortunately be out of my price range. The room is 12 by 24 and the speaker load is 2 ten inch seas woofers, 2 seven inch mids, and the tweeter. They are 4 ohm with a sensitivity of 91 but a big speaker. Any thoughts from Pass owners of these amps would be appreciated. The other direction i can go would be to upgrade my Pre-amp from the Rowland Capri but my initial thought was that the Pass amp change would be more of an upgrade. Thanks for your thoughts.
pettyfeversk

Showing 2 responses by charles1dad

charles1dad's avatar
charles1dad
10,250 posts
 
It would seem that the Pass XA60.5 driving 91 db efficient speakers in a 12x 24 room should be more than enough power. What are your listening levels in db?
charles1dad's avatar
charles1dad
10,250 posts
 
Hi,
Pettyfeversk, something does`nt seem right here. According to Nelson Pass the XA.5 series is "pure Class A" and is an ultra high current design(factor of 5x compared to the previous series current output capabilities) his words.It has a very stout power supply(obviously).
Your speaker is`nt a difficult load. At 4 ohms your amp will have plenty of current reserve(per design objective). Unless you want ear damaging volume your amp should really be fine for any type of music.

I`d speak with someone at Pass Labs before I`d follow the advice of some here to move up to a larger amplifier. Have you done that yet?
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