I really want to go IEMs with the custom impressions. I've been reading all the threads, websites, and other propaganda. Seems the best choice for me as a bass player that also plays guitar, sax and sings (not to mention I'm often the engineer) would be something like the 64 Audio Quads. I think these are called A4 now, and they go for $899 on their website. Plus $25-$200 for just getting the impressions done (yes I have seen the whole range). Or I could go all out and get the A12 (yes, 12 drivers) for $1,999. Seriously? This is way more than I can afford! I love great sound but I just need to hear everyone else in the band. It doesn't need it to sound like it was recorded on a Neve console at 3 jillion bits resolution and played back through a McIntosh amp. This is rock n roll. I don't need wireless so I can skip that expense (yay). But can I get away with using a cheaper earphone? There are instructables on making your own custom ear thingies with the actual earphone shoved through some goop that then hardens to make a cheap IEM. I'm willing and able to spend $100 or so on earphones, and another $100-200 on getting impressions and/or custom ear pieces. I can upgrade when I'm rich and famous. I'm willing to do the audiologist thing because I've never been able to play sax with earplugs. I believe this is because of an effect called occlusion, which I probably need some professional help to resolve. Or... am I better off getting custom fitted earplugs?