Too much power?


Forgive me for what is probably a silly question.
I've been out of the entry level audiophile scene for nearly 17 years and I'm not sure about the set up I'm currently running as I had to replace my mains.
Long story, short, I had a pair of M&K S-125 speakers stolen 2 weeks ago when my house was burglarized. I decided to try something different and bought a pair of Definitive Technology SM45 speakers. I'm powering the SM45 speakers with a Parasound HCA-3500. I'm using an old Yamaha RX-V592 as a preamp. Between the Yamaha CD player I installed a Musical Fidelity X-ACT DAC followed by a Musical Fidelity X-10D (for a little warmer sound). All cables are by Monster Cable.
To me it seems that I may have too much power driving the speakers. The reason I believe that is that the volume dial does not have to move more than 75 degrees up from 0 to have the system on the loud side. The speakers are rated at 150W and the amp is rated at 350W.
Am I over-driving the new SM45 speakers?
Should switch over to the Carver TFM-35 I have powering the M&K S-80 center speaker?
Your thoughts would be appreciated 
exiledviking
EV- I don't know your speakers or their sensitivity.  While you could do damage over driving speakers with an excessively powerful amp, I think what you describe (limited range of volume control) might be a function of the amount of gain from the pre-amp.  I have a similar situation even with a 0 gain and -10 dB gain switch on my pre-amp that is supposedly designed for the mono blocks it is paired with.  I got some Harrison Labs attenuators and have these on the ICs from CDP and DAC at the input to the pre-amp.  They've given me a bit more control range on the volume knob and I don't hear anything untoward happening to the sound as a result of their use.  Some folks prefer Rothwell attenuators.  Good luck with your system.

Your new speakers have a higher sensitivity than the old ones. Nothing is wrong and the only way to have "too much power" to a speaker is to turn the volume control up to high. You should be able to notice this before anything happened to the speaker. It would be incredibly loud and start to distort.
Get that sound changing machine (preamp) out if you can . Does nothing but add or subtract to the music . Either way not good .
I agree with Maple ....get rid of that aweful yamaha preamp, find a proper preamp and your sound will improve 10 fold!

Matt M