Depending on what you throw at them A1 could hiss... A LOT, like instead of listening to splashes you where listening to PSSS PSSS PSSS, really annoying. 5's on the other side would never do this.
Seriously, when i put some Therion on A1s is like a hissing carnival.
I dont like hissing, not even a little bit, no matter the -phone.
I think you mean sibilance (exaggerating "SSSSS") rather than hiss. To my ears the A1 are the least sibilant of the FI-BA-xx models, of course they have still a bit more treble than the e-Q5. But I recommend checking your seal, a less than perfect seal can often contribute to sibilance. Final Audio's stock tips are very thin (too thin IMO), so you might try different tips or piggyback tips as shown in this picture.
Yes, i meant sibilance, thanks a lot for the heads up.
I should try them again at the retailer, i remember i used them less than 15min and thought OMG this is too much 'SSSS' for my purposes. Maybe was the seal?
Edited by Caesar56 - 11/27/10 at 6:56pm