I have a txa 600.4 that I use to power a set of NVS deviants. Briged it will easily overpower the speakers if you want. I have looked at the txa 150.2 as an amp for a sub. I agree with craig that they are big. Another issue is making sure it gets good ventilation since it does not have an internal fan. I mounted an external fan to blow on my amp that I control off a seperate switch. It is only an issue when you are really cranking the music. That is a good amp and you can get them really cheep. I would get the TXA 300.4 and bridge the other two channels to a sub. This also gives you plenty of power in case you upgrade your speakers in the future. The TXA 300.4 can run 300
rms@4 x 2 ohm which is enough to power even the high end equipment if and when you upgrade. Go to
www.cadencestore.com txa 150.2 is 99 with free shipping and the txa 300.4 is 129 with free shipping. You will be happy with the purchase.