Has anyone else noticed that the sound quality from the Ipod is significantly inferior to that directly from Itunes on the Mac, or do I have a suspect specimen? I'm using a new Ipod with a standard CMOY amp and ER4-S's. The sound quality on MP3's and AAC's is OK, but rather fatiguing - I thought...

I notice that with mains powered amps the HeadRoom models seem to struggle against the competition. But what about portable units? What is there out there that compares with the TA, supreme etc?

I can alter the sound of my etys by changing how far I insert the rubber tips (whil still having a good seal). The sound seems to be related to an increase in the pressure between the transducer and the eardrum. Light insertion, with low pressure buildup gives a rich sound, with slightly less...

I've just invested in a pair of ER4S ear (canal?) phones, and have been playing around with the two types of ear plugs supplied. Performance is supposed to be identical with both types. The default ones are the white silicone plugs, and I get the impression that moldable plugs are included as an...