Quote:
canaris wrote:
 I wonder whats heavier on the amp, 4 ohm bridged or 2 ohms per channel? |
Hi there,
It's generally always harder for an amp to drive a smaller load (i.e., harder to drive 2 ohms than 4 ohms). I don't know all that much about power amp design, but as the load reduces, the amp will try to push more current. Many amps aren't designed to handle this, and usually state such. Lots of receivers don't want a 4 ohm load at all for this reason. Their power supply's voltage supply rails out, they try to push more current, they get hot, and then self-protect or burn up. Not terribly likely at low volumes, but it can become a problem at high volumes.
I personally have driven Magnepans (difficult load) and Vandersteens (somewhat difficult) with a Denon receiver. The Denon probably didn't like it, but at low/mid volumes it's fine. A dedicated power amp improves the situation, of course -- especially one designed for it.
For your IB, if you feel like you need more power, go for it.