switching between two amplifiers; issues of power


Hello and thanks for your insight.

I am ordering a second amp, an inexpensive class D amp, fueled by two Icepower modules, the 300AS1, I believe, which outputs 150 watts into 8ohms and 300 into 4 ohms. It can handle a load as low as 2.7 ohms.

This is a Swiss-assembled amp that I've ordered because my almost utterly amazing Nuforce STA200, also a $500 amp, runs hot when I play it a little into the loud.

My question: when the new amp arrives and I want to swap the speakers to the new XTZ amp, can I leave the Nuforce plugged in and "on," while there are no speaker cables affixed, and visa-versa with the other amp. I would like to compare the two amps and I don't want to damage an amp for lack of speaker load.

Thank you and best regards,
listening99
OK I posted the screenshot of RTA with Royals. A fun track for sure to flex the bass a bit. You can find it on my virtual system Poverty Bay Sound. Have fun, i hope your search is going well.
Jim
Hello Listening99.  Power is a funny thing. The numbers don't fit into our brains very well.  If you've watched Vu meters while music is playing, you know a 10 db jump is not all that impressive. The loudness difference between 1/10 of a watt and 1 watt is the same difference as between 80 watts and 800 watts! So 300 watts is not nearly four times louder than 80 watts. It's just under 6 db louder. 320 watts would be 6 db louder than 80 watts. So it's NOT a matter of perceivable loudness, it's a matter of the apparent ease of an hi wattage amp not running out of power and clipping at say, 200 watts when an 80 watter would have run our of power and clipped the wave, which sounds bad. A current hungry speaker (low impedance) is going to tax any amp, so it's good to have one that can deliver the goods when needed. Good luck with the new amps they will play cleaner at volumes where the 80 watter was struggling. Place them where they can have plenty of ventilation. Keep Smiling!
@boomerbillone - your post is appreciated... maybe I should have opted for the 800wpc d-sonic, given your spirited claims. I will have the new 300wpc amp for a 30-day trial, so we will see how it goes. Should be here Thursday and I will definitely set it in motion that evening.

Thanks for sharing,