Uneven wattage = uneven sound?

baboon

My Current Setup:

Marantz SR8400
Polk T90EB
Polk CS1
Kenwood 8" HT Sub (It was donated to me, I need to upgrade it)
Athena WS-15

My Question:

If I get an Adcom GFA-5503 3x200W for my front speaks. Will it overpower my surround speakers (like make the fronts too loud for the rears)? My rears, Athena's, will only handle 100W RMS so I'm afraid I'll blow them if I get a 5x125W amp (GFA-7605).


Question 2:
The recommended subwoofer for my configuration is the PSW10. However my room is midsize with a super raised roof. Would a PSW404 be okay or too much? Thanks

Room Pics:

John K.

Bab, speakers draw only the amount of power that they need for a given sound level, which for speakers of typical sensitivity is an average of about 1 watt at a comfortably loud level. Amplifiers don't force unneeded power into speakers, regardless of whether it's a 5 watt or 500 watt amp; you, not the amplifier, control the sound level that you want from each speaker. The amplifier with the higher maximum output capability has more headroom and could allow playing brief peaks in the music at a louder level, but may be simply unused capacity in most setups. Buying more power than you need is useless and may hurt you financially, but it won't hurt your speakers; your ears will give out before they will.

aaharvel

not uneven sound. Double the wattage is only a +3db. difference. Those are Adcoms not Kenwood receivers. You're not going to run out of headroom on either. Use your SPL meter to calibrate.