A friend of mine has a budget of $300 for a large-diaphragm condenser mic, for use with acoustic guitar and vocals. I like the AT mics, and use a AT 4050 a lot with nice results. That mic is going to be out of his price range, although a used one on eBay might be affordable. A used AT4033 would fit his budget. I see the AT4040 new for good prices, but I have no experience with that mic. I was wondering if anyone uses the AT4040 and could compare it's performance to the 4033 and 4050. Thanks.