I'm finally going to try learning all this active crossover mumbo jumbo. So I need a 30ishx2 tweeter amp for around $75 to experiment with. I don't mind older used stuff if you think the SQ is worth buying something used. So a list of amps I should be on the lookout for would be helpful. I'll be installing the Alpine PXA-H100 in the next few days so that's where my crossovers will come from. And feel free to shoot me a PM with stuff you might have available. Thanks.