D class amps with Soundlab speakers

Sound Labs do play nice bass. The trick is if the amp can deliver power into the bass frequencies as their impedance can be quite high. This is why they seem very power hungry if you have a transistor amplifier- an amp that makes 400 watts into 8 ohms will only make about 100 watts into the bass frequencies.

Its not a power issue though- 150 watts is plenty of power if the amplifier can make the power. Its a matter of impedance.

For the most part solid state amps do have trouble making power on this speaker. I would not expect a class D amp to have problems with the load otherwise, just that you would want one with a lot of power (600 watts or more depending on the room) so that you don't have to push the amp.

Some of this is my own experience- I find that class D works a lot better if they aren't being pushed hard.

Mapman, If you are not heating up the amp then you probably have no worries. So you have enough power with your speakers.

My rule of thumb with most amps is you want more power than you will be able to use with the speaker you are using. But I have a different rule with Class D amps- they should be powerful enough that they do not heat up even if used all day, at any volume you care to experience.