I am an owner satisfied of an ER-4P black. Thanks

Nikongod, I changed electrolytics to 5600uF improving the phase distortion in low frequencies Well, I did some research ... both p and s drivers himself has impedance of 5 ohms. Added to this the cable (2 Ohms) and a resistor (20 Ohms to the p and 100 Ohms for the s). Thus, the total...

Thanks Erik by the suggestion. It is one very good project but I search something simpler with the expense of losing some audio quality. Even because most equipament that I am going to connect to that are not high fidelity.

Only shown single channel. At least simulating in spice it works. In the 1.7v led voltage occurs a hard clip but this is already a lot for the ER4P then the resistor is a voltage divider.Both eletrolitics act like a single bipolar And bypass cap is a film tipe for less distortion. Thanks!

Recently I bought an etymotic ER4P and would like to build a protection circuit to be able to use with generic equipament tv,radio... Should protect against DC-offset, transients and to transform the P for S because the phone is already very sensitive. Could anybody tell if this circuit would it...

http://sound.westhost.com/project109.htm

OK I discovered what happened. This Panasonic has one more terminal in plug for the remote control that works through resistance variation. what I did not know is that the signal that is constantly applied by cdp also has return by the audio channels. Doing the mensuration again with the turned...

Thanks Tangent. The phone continues working but I am afraid of have changed the sound. If this happened, I never am to to know because here in Brazil I do not have opportunity of testing and to compare good phones. HD280 I imported and cost very expensive here...and now it happens to me that...

Hi all I need help here. I had just bought a HD280 and when I connected he in Panasonic SL-SX420 and without turn on I started to hear some cracks in continued time's intervals. Being worried I decided measure DC offset with a simple multimeter digital. Without load, multimeter marked peaks of...

If no recommendation, I go with Clarostat 585 anyway, thanks

Hi all, I need advice in a reasonable stereo potentiometer. Size does not matter. should have in Newark and around of $4 OK, not audiofile at all Thanks

JensL, Thanks for posting some information on Philips SBC HP1000. It is pleasing to see me that this can somehow be compared to HD650. I live in Brazil then Is advantageous for I buy a Philips. Thanks

Thanks Tolovana. It is a honor for me your first post be to help me! I think I am going to look for for minors. Aiwa HP-v163 has the controllers of 13.5mm and to perhaps be best for me.

I have an earbud Philips who is about 17mm and is very uncomfortable for my ears. If someone knows the of Senn, help me.

About $150 If you find expensive knows that a Senn PX250 is sold by $270 here.

Halcyon, thanks by the information! Today I am bored. In my computer I generated a sweep signal from 10 to 22000 Hz. I do not know are my cheap phones, but perhaps I do not manage to listen above 15kHz. Futurely when I have some best I intend to do better test carrying in counts...

I reminded myself of the better portable phone that I already heard. It belongs to my brother and came with walkman Sony 13 old years. The model is a vertical kind MDR-W10 and this sounded better than two earbud Sony who I had. The guitar of Joe Satriani looked great in these and I think they...

Davie, Thanks by the help. Yes, I am coming back my attention for HP1000 because after all the most important to is me musica pleasure and a phone open will do it better. He also is the less "exaggerated price" which I can meet here. HP800 would be the economic option. But before any decision I...

Thanks to everybody. I am going to continue with my search. Quote: Originally posted by Alex Altorfer Guto, You seem to be doing quite well with your English here though. Alex, you are very kind. But in fact this English is not my and yes of the software that I use to...

Hi Ymer and Alex Ymer, I never saw the 610 and am going to do a search in the net. Thanks by the hint! I met a phones salesman in the Mercado Livre that sells sen and another marks. The second link I presume that it belongs to the store of the same...

Quote: Originally posted by karmypolitics but don't they also press against your ear? I have a pair of cheapo phones with a similar ear design, and it hurts after wearing them for over an hour. I ask the same thing. And how they get a sealed good if the surface of the ear is...

Alex, despite my source be portable I use this more at home I like listening night before sleeping. Do not worry that I do not am going to leave by the street with a HP800 in my head because I do not want to stop in an insane asylum. I bought the portable to more or less a month that cost very...

Thanks Alex Altorfer and Music Fanatic. Alex, do you now own a HD580 right? How you would compare this with HP800 regarding two aspects: listen fatigue and quality in low volumes. I ask this because I play drums for the about 17 years and today I am very sensitive for high volumes. I would...

Anxious to see one review. Because? Well, I live in Brazil and here any rules of this forum do not apply. I am going to try to explain what it would be expensive and cheap here ( for me ) cheap phone: Coby CVE3 ~ R$ 15 ( $5 USD) average phone: Aiwa HP-v163 or Sen MX400 ~ R$ 60 ( $20...

I have powerdvd and access DH directshow filter with graphedit. Put me would like access this through other audio tools. The goal is to facilitate the multiple files conversion to listen in my portable. I thank if someone it can give hints.