Amp Recommendations: 2 Ohm Stable, ~300+ watts, and small...

I am not sure how they will handle 2 ohms bridged but the Benchmark AHB2 is a tiny amp. You would need to get two of them and bridge them mono to get 300 watts. The QSC PLX1802 is a 300 watt/ch into 8 ohm tiny AB amp with a switching power supply. It will do 700 watts/ch into 2 ohms. It is a commercial amp and has a fan for extended high power use. For home use just  go in and unplug the fan. QSC makes much more powerful versions if you have money to burn. I am sure there have to be some small class D amps that will do the job.

Mike

Check out this amp... stable at 2 ohms... 1000 watts at 1.8 ohms


https://www.cherryamp.com/5-channel-amp


More details from their kickstarter here. 


https://www.audiocircle.com/index.php?topic=162524.0

The QSC amplifier is more of a pro audio amplifier that will work for home audio producing 300 watts into 8 ohms and handling speaker dips to 2 ohms. 


The Cherry amplifier is 14x 10x 4 inches... and they have much smaller mononlock amps also. These are audiophile amplifiers with output of 200watts into 8 ohms and 800 watts into 2 ohms. 


The QSC is much less expensive but the downside is that it won’t sound quite as good.