The two Chinese greenbacks will be fine and they sound good too. A friend ran a pair with a 50 watt Recto head. Many, many gigs and he plays LOUD! No problems. Another friend ran a Z Maserati (30 watts class A) and also a Mojave plexi 45 and he too had no issues with the GB's. Although the last two two amps are lower wattage they are cleaner than the DS and that's where you get in trouble blowing speakers, loud and clean.