I agree with Viridian...listen first. Your speakers are rated for amps in the 50-500 watt range so an amp upgrade is not out of the question...I would however, listen first...save some money ($700-$1,500)...buy a good used amp at Audiogon down the road should you feel the need.
The Onkyo and Audiosource amps you mention are probably no better than the Pioneer in any large enough way (if at all) to warrent the extra expence.
Dave
The Onkyo and Audiosource amps you mention are probably no better than the Pioneer in any large enough way (if at all) to warrent the extra expence.
Dave