[handoverfist77]

Gotcha. Thanks buddy!

 

[Drumonron]

Simple for me, ER4S if you're amping....ER4P if you're unamped....but for over all sound quality...simple...ER4S without a doubt.

 

[wuwhere]

I have both. With a good amp that can drive them, S over P.

 

[AmanGeorge]

I prefer the ER4P with or without an amp (it has a little more bass, and a little more energy than the S version).

Additionally, a P-S adapter can be bought on eBay for $18 shipped, so I see little reason to buy the S.

 

[FinnishFlash]

Has anyone tried that 18 dollar eBay P-S adapter, would it be a viable alternative to the original Etymotic adapter? It's dirt cheap and you would think adding 75 ohms of impendance would not be rocket science...

 

[mrB]

I find it a little hard to believe that the inclusion of a 75 ohm resistor in the signal path will convert the ER-4P into the S. Besides the change in impedance from 27 ohms to 100 ohms the P has enhanced bass response and about 10-12 dB greater sensitivity, all of which have to be rematched to the S specifications. Maybe that's why the adapter cable costs $60, or are we too naïve. I'd love it if a 10 cent resistor would do the whole job though! lol.

I don't know the answer, but if someone of experience does, please enlighten us.

 

[nkk]

See, the thing about facts is that you can have hard times believing them, or whatever. The ety site says that the er4p is about 75 ohms less than the er4s. What costs so much is that it is the official ety cable.

-Nkk

 

[Seufari]

holy thread revival...

 

[DeTrun]

Quote:

Originally Posted by mrB /img/forum/go_quote.gif I find it a little hard to believe that the inclusion of a 75 ohm resistor in the signal path will convert the ER-4P into the S. Besides the change in impedance from 27 ohms to 100 ohms the P has enhanced bass response and about 10-12 dB greater sensitivity, all of which have to be rematched to the S specifications.

I'll change some words of your sentence, to enlighten you

The change in impedance from 100 ohms to 27 ohms is the S with enhanced bass response and about 10-12 dB greater sensitivity, all of which are already rematched by the impedance.

So basically: the lower impedance is the reason why there's enhanced bass response and bigger sensitivity. It doesn't have to be rematched.

So a cheap, decent 75 ohm resistor would also do the job. The only difference between the ER4P and the ER4P is the 75 ohm. Read nkk's post too.

 

[DanD]

While this thread is revived, is the different between ER-4S and ER-4B something simple also like extra resistor or capacitor ? Anyone know ?

 

[mrB]

Quote:

Originally Posted by DeTrun /img/forum/go_quote.gif So basically: the lower impedance is the reason why there's enhanced bass response and bigger sensitivity. It doesn't have to be rematched. So a cheap, decent 75 ohm resistor would also do the job.

Okay, then I'll have a go at making an adapter like someone is selling on eBay for $18! Ha Ha! Thanks for this valuable information.

 

[DeTrun]

Quote:

Originally Posted by DanD /img/forum/go_quote.gif While this thread is revived, is the different between ER-4S and ER-4B something simple also like extra resistor or capacitor ? Anyone know ?

Read the whole thread

:http://www.head-fi.org/forums/f103/e...c-er4b-440829/