The Wyred4Sound amp is amazing for the price—I paid about $800 used for it a few years ago. It is detailed and powerful. It has a little more glare than my MA1s, and much less emotional delivery, but I could definitely live with it for the Summer months. I’m sure there are better Class D amps now—the W4S uses a Beolab ICE module amp with a custom input and power supply. Given its performance, however, I don’t think I’ll be trying the Benchmark unless I find a great deal.