[Deadleg]

These guys are in China but they will build you anything you want. I wanted a 50cm balanced cable with a 2.5 right angle plug and they made a very nice one. Sounds GREAT. Buy their stock cable on ebay and then immediately message them and tell them what you want and they will custom design it.
https://www.ebay.com/itm/1-2m-4ft-S...var=424688395138&_trksid=p2057872.m2749.l2649

Thanks a lot for this, just placed my order. If it seems solid when it arrives I'll probably order a spare and be set for a while!

Will try to remember to pop back with some impressions in a few weeks.

 

[carmatic]

Hi,
could you share your schematics? I am thinking how to possibly adapt these for ER4P

http://www.falstad.com/circuit/circ...YMgGBBd1WmAwGBC7SiYukVEYAHsmW8VJAFt1DnIBdEGEA

I hope that the simulator looks understandable enough for you, the rightmost 45ohm resistor represents the ER4SR driver, the green graph represents the input, and the red graph represents the output to the driver

of note is that I have since removed the diodes and two-thirds of the resistors compared to when I took the picture, the diodes were there to protect the capacitors from reverse voltage but someone on the forums said that they weren't necessary, and each resistor is 100ohm so by going from 3 parallel resistors to 2, I have increased the resistance from 33.3ohm to 50ohm...it gives a higher ratio of bass to the sound and adjusting the potentiometers will have a bigger effect on the level of bass to each driver, but it does mean that I have to run my amp at full blast to get a normal volume out of them now, but I could use my ER4SR with even cheap amplifiers and there wouldn't be any background hiss

you will notice that 2 terminals of the inductor/transformer are not used, any current flowing on this side of the inductor/transformer at a certain frequency will also increase the current on the main side , so by adding more components on this side such as capacitors and more inductors, it would be possible to shape the frequency response of the inductor/transformer

Overall , as it is now, this is changing the frequency response in other ways than just increasing the bass and removing hiss... it seems to be attenuating the high frequencies in a way which makes everything sound 'distant' , I am suspecting that the resistors and potentiometers I am using have some inherent inductance to them which is causing some unwanted filtering of the high end
(or maybe a balanced armature driver is more complicated than a simple resistor with the same value as its impedance)

But, between the bass boost, and being in control of centering the bass response, this is an acceptable tradeoff for me...

As far as adapting to the ER4P, the only thing I can think of is to change the resistors and potentiometer, from 50 ohms (which I am using for my ER4SR which has 45 ohms impedance), to 33.3 ohms (to keep it proportional with the ER4P's 27 ohm impedance) ...

 

[LIVE_EVIL]

..

Thank you!

 

[max232]

Adorama is destroying the resale value of these phones. I wonder how Etymotic feels about them discounting their products? Just goes to show how much profit there is in this stuff. Maybe they're knockoffs?

 

[WilcoRoger]

If Etymotic were upset, they'd not supply Adorama - simple as that.

 

[max232]

Confirmed Adorama is an authorized Etymotic dealer. The email prices are insane if you sign up for their newsletter.

 

[lesale08]

Adorama’s sale on the er4 series are outrageous. Good for the consumers who get the deals though.

 

[lesale08]

Speaking of adorama. They’re going for 150 again for the er4 series.

https://www.adorama.com/etyer4sr.ht...x0Mo3QRUkEzgqVdcQK:wU0&utm_source=rflaid98220

 

[trellus]

Adorama is destroying the resale value of these phones. I wonder how Etymotic feels about them discounting their products? Just goes to show how much profit there is in this stuff. Maybe they're knockoffs?

Got mine from Adorama and they sound super good to me and came with an official card from Etymotic - I doubt they are knockoffs but if they were they are damn good ones

 

[WilcoRoger]

Speaking of adorama. They’re going for 150 again for the er4 series.

https://www.adorama.com/etyer4sr.html?emailprice=t&sterm=17jXuC2kXxyLT7JwUx0Mo3QRUkEzgqVdcQK:wU0&utm_source=rflaid98220

... and the ER3 series for $89 - crazy times for consumers!

 

[lesale08]

... and the ER3 series for $89 - crazy times for consumers!

Oh my so very tempted to get that 4sr. That’s better than the deal I got for the 4xr. Lol

 

[491838]

I paid almost $400 for my ER4SR lol. Damn EU prices.

 

[alterndog]

I just jumped in the adorama sale for the XR. I have been wanting something with detail and clarity to compliment my FutureSonic G10 which are amazing for bass heavy music.

 

[Luis Mad]

Sale of ER4xr at Amazon.com for 199 dollars. Just ordered from Europe, price with taxes and transport 230 euros, much better than local price, now 342 euros
https://www.amazon.com/-/es/Etymoti...ild=1&keywords=Etymotic&qid=1605367305&sr=8-4

I didn’t order at adorama since they do not handle the import taxes and do not tell you how much you are going to end up paying

 

[blse59]

Well, that's what Lucid Audio gets for moving production to Vietnam. The perceived value goes down. ER4 had more "weight" when you knew it was made in the USA. I don't really get what Adorama is doing with these sales though.