ok then, to all the er4 fans here, for those moments that you feel like you need a shot of bass that the er4s don't deliver to your satisfaction, which is your go-to iem?   shure 535? ue triplefi (do they still make those? i don't see them listed on the ultimate ears website)

  ok, so I do confess to ordering an amp a couple of days ago to see if that would help remedy some of the loss of bass on my ER4P/S, so I guess you are right that I do miss it :-)

I agree ... I've had many different sorts of earphones/headphones over the years in the $300-$500 range (i.e. cant speak to the HD800/AKG range of products) and nothing comes close to the Etys in terms of isolation+accuracy. You can almost entirely shut out everything around you and all you hear...

  Hi Fabian,   instead of starting a new thread right away, you might want to look at the dozens (hundreds?) of reviews and descriptions of IEMs on head-fi already ... the "search" functionality on the forums is pretty decent.   As you will likely find (or you already know) the choice is...

  Thats great, thanks! Zonto pointed me to some gear on sale in the forums, but perhaps I'll get the C5 as well, keep one at work :-)   The Pono player I am using it with has a 5 ohm output impedance, and perhaps because of that, I find the bottom end much less prominent than I remember on my...

Hi All,   I've been a longtime lurker, but posted recently, and was very pleasantly surprised by the welcome and the super helpful responses I received.   And, a special shout-out to ZoNTo for pointing me in the direction of some great deals on amps :-)

I see that the JDS C421 have been replaced by the JDS C5, (as Zonto has also noted above). Have any of you used the ER4P or S with the C5, and would you recommend it as enthusiastically as the C421 as a "synergistic" pair for the ER4P/S??   Thanks!