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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

Showing 4 responses by tomic601

tomic601's avatar
tomic601
13,182 posts
 
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
tomic601's avatar
tomic601
13,182 posts
 
Try Audio by Van Alstine

tomic601's avatar
tomic601
13,182 posts
 
Well, mr decibel is one who’s input I trust for sure. We don’t run an hour in the high nineties for many reasons... this isn’t a lecture but watch your ears !!!! Royals is a high power density track ( give me a bit and I will post the RTA of that track on my virtual system page - I was recently using that to help a fellow audiogon member size his amplifier ( with less efficient speakers than yours )
your hour requirement drives duty cycle. In an A/B amp, you need a beefy power supply, lots of output devices and a way to get the heat out. Look under the hood on the 225 and it will indeed be lacking, so I retract my recommendation. I would point you to Van Alstine IF the class D disappoints. I will let you know when I put up the RTA photo - it is a great track for taxing a system.
tomic601's avatar
tomic601
13,182 posts
 
The excellent and more powerful Job amp should be on your list IF your new amp does not meet expectations. We have one in the studio, it is rarely powered down.
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