I bought the Starkrimson gan-fet mono blocks (1.8k) for my refference 1s and they sound amazing, but their max power is only 150 watts. Not sure if the 500 watt mono blocks would fill them in more but they cost 5k.
Has anyone ever tried to return someing to Apos? It's been 8 days since I put in a request and have only gotten an automated reply telling me someone would email me. Never buying a product from them ever again.