can a new amp amp tame my speakers?


Just spent some time listening to what I've been planning to upgrade to for main speakers. PSB Synchronys. The Imagine T2's are close, but slightly veiled in comparison. My current, but old, Infinity Kappa 7's really don't give much away to the PSB's. My amp is an old Yamaha MX2, 125wpc, and I've heard them described as bright or harsh, and that's the only complaint I really have with the sound now. Can a well-chosen amp tame the highs on the Kappa'a, which use a ribbon-style tweeter? Or is the 'taming' I seek only going to happen with a speaker upgrade. I honestly don't mind upgrading the speakers, and fully expected to, but after today's auditioning, I'm wondering if I'm going to get that much benefit from that level of investment. $3500+ is a healthy chunk of coin for benefits of slimmer profile and tamed highs. In terms of imaging, weight, and bass, the Kappa's are equal, imo. The system is also the theater, but the avr can power the surrounds, so an amp upgrade could be 2 channel. A power boost is a must too, as the current 125wpc isn't enough for when wifey's not home and the volume gets wound up ;)
english210
Audiolabyrinth, The only reason I left it open on the speakers was that ,if English WANTS new speakers, ( we all know how that is) he should go ahead now and get them.

There is a Manley Shrimp and a Quicksilver preamp, on the Gon, but the source may be the biggest problem.

Then there is cable abyss.
@ Acman3, I agree!,yes,the cable abyss!,I believe given the right equipment and cables his infinitys would sing!,ribbons can sound real good,if you know what you are doing!,hes going in the right direction,cables can and will fix his ribbon issues.,I also agree with everything else you said as well.cheers!
@ Deebarnes,well said!,awsome,cables is what I recommended could be the problem,thanks!
I do get the potential issue being the source (material or player). Right now I'm using a PS3 through my AVR - Yamaha RXA3010. An Oppo 103 is on the shopping list. I know (now) that Yamaha is notoriously bright, so that certainly could be the issue, but it is relatively new, and the processor for movies, so I'm loathe to replace it. I'll have to verify which i/c's are going to the Odyssey - I was using AQ, but they are made in such a way that the terminals won't spread far enough part to connect to the amp, so I switched them with the ones I'm using on the sub, and have to see what those are. Speaker wires are old Monster cable from when I got the speakers. Can't remember which ones though. All I can say is that the actual wires are about 16 gauge, wrapped around a central conductor, then insulated and the plus+minus are then wrapped again. I use bare wire, and trimmed back for 'new' wire connections.
Some of the material I notice the harshness on is off Pandora, (but by no means all), which is using the ARC on the HDMI.

There is an 'itch' for new speakers, emotionally based as so much of this is, however the $$ isn't really there...the wife says it's her turn, and has a long list ;) (and to be fair, she's right).

It does bring up the next point though...Given that perfection is a moving target that can never be acheived, at some point each of us has to say 'enough's enough' and be content. Fine tuning to get the most out of what we have is also important, and the synergy of course - $5K total can sound better than $50K worth of equipment - Having said that...I think it makes sense to me to have an eye on where I may go with speakers in the future to prevent wasting money in the short term. Also, one of the items on wifey's list is taking out half the back wall behind the listening position, making it open to the kitchen. The room is currently 19 long, but opening up that wall will make it 36. To picture the layout of the 'new' back wall, it would be open except for a false header full width, down 1' from the ceiling, and from left to right, a half wall 3 1/2' high, 7' wide, leaving 5' open. the room itself will go from carpet to wood floors with area rugs. (so brighter yet). So, the environment for the speakers will change their sound as well.

Should I wait til all that's done and see how big the problem is then? Perhaps (unlikely) the room qualities will ameliorate the problem, or conversely (and most likley, given Murphy's position on my back most days) make the problem too great to be 'solved' with cables-I/C's. Or is the change in the room not likely to be so great as to render changes I make now in cables-I/C's pointless? How do I determine a realistic budget for 20 year old $1600 speakers, a $2K AVR bought cheap, and a $1500 amp bought used for less. I know I could easily spend that sum on one pair of interconnects and speaker wires.

Thanks!!
English210, Don't try to use common sense, it just confuses us. I might add that your Rationalization skills will need to improve if you are going to get those $$ interconnects.

I would go for better wire if you can pull that off, and keep your wife happy. It can always be resold. I will let other experts help you with wire recommendations, but I used Reality Speaker Cable when my system was bright, and Audioquest Type8 was really warm to me. Also Anti- cables worked well on one system and were terrible on another. The cable abyss.