Yamaha R-N303B is a good amplifier...i have one so i could test it.
Unfortunately, the tests i did show that in fact the amp only drives
~65 W / channel on 8 ohm and not 100 as they said. Also, the amplifier
frequency response curve in relation to power is quite non-linear: at
lower frequency (20 - 100 HZ) the amp delivers only ~50 W / channel -
while at 15-20 KHz the power goes to ~75W / channel (BTW: now i know why i burned 2 tweeter. Input signal was kept at such level that the output
signal (on the load) was clear sin and not clipped. Also, the tone control on Yamaha was set to "0" - neutral. If that is being changed, depending on the input signal you use (especially if you use a computer or DVD optical output which has volume control) you may/will clip the output.
~65 W / channel on 8 ohm and not 100 as they said. Also, the amplifier
frequency response curve in relation to power is quite non-linear: at
lower frequency (20 - 100 HZ) the amp delivers only ~50 W / channel -
while at 15-20 KHz the power goes to ~75W / channel (BTW: now i know why i burned 2 tweeter. Input signal was kept at such level that the output
signal (on the load) was clear sin and not clipped. Also, the tone control on Yamaha was set to "0" - neutral. If that is being changed, depending on the input signal you use (especially if you use a computer or DVD optical output which has volume control) you may/will clip the output.