hey audiofan
The soundstage will not be affected by the amp as long as proper stereo seperation is maintained in the amp - and relatively any amp company still in business maintains stereo seperation in the amp.
Go with the RB-1070. Everytime you double the watts, you gain 3 dB, a slight change in volume. The
minimum volume you would probably get with 130 watts would be 107 dB - your ears would give out before the amp did.
Check this
spl calculator, you'd be surprised how little difference between the two amps there really is when driving such an efficient speaker. It'll probably tell you that you could get over 111 dB.
The Rb-1080 watt amp retails for $300 more than the RB-1070. Take that money and get a
HSU subwoofer with it - it'll make a _lot_ more of a difference in your system than an extra 70 watts would. Or you could just pocket the $300 and spend it on other stuff.
