Radsone EarStudio ES100
Jul 18, 2018 at 3:04 PM Post #1,711 of 6,675
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Jul 18, 2018 at 3:52 PM Post #1,712 of 6,675
I got this one:

https://www.null-audio.com/collecti...ethos-5n-cgocc-a-silver-plated-earphone-cable

With 2,5mm connector on the way. The cable lenght will be around 46-48 cm. Just contact customer support before you order and they will walk you through it. The length should be perfect with not much cable hanging lose below the neck. Will post pics once they arrive!

Do you find that the silver plated cables make the signature brighter? That is what I found with the balanced cable that I got, which I don't really like.
 
Jul 18, 2018 at 4:54 PM Post #1,713 of 6,675
Do you find that the silver plated cables make the signature brighter? That is what I found with the balanced cable that I got, which I don't really like.
SPC, shouldn't have any effect lol. A Pure Silver cable, only noticed a little bit.
 
Jul 18, 2018 at 5:21 PM Post #1,714 of 6,675
SPC, shouldn't have any effect lol. A Pure Silver cable, only noticed a little bit.

Hey, you laughing at me? :wink:

I'm pretty sure that this SPC cable brightens the signature with my earbuds, but I will do some more listening and possibly I will prove myself wrong.
 
Jul 18, 2018 at 6:42 PM Post #1,715 of 6,675
Do you find that the silver plated cables make the signature brighter? That is what I found with the balanced cable that I got, which I don't really like.

My earphones came with a SPC cable, so I aspect there will be not much difference except in improved durability in this Null audio one.
 
Jul 18, 2018 at 10:29 PM Post #1,717 of 6,675
There is some information of EarStudio output stage in its website, seems that it has unique “DualDrive” design.
https://docs.wixstatic.com/ugd/fb72a4_f6e284067322400193a13fd9a863e4ce.pdf

Usually a DAC has a lot of "channels" it can use and bundle. Depending on the DAC chip (some are even multi core) you basically have already a few channels bundled for left and right. However, if you use two DACs you use one for left and one for right exclusively instead of letting the day handle both channels in one DAC/core. That way SNR and whatnot is improved as the DAC can use all its "channels" on just one side of the stereo spectrum.

See this from 2001: http://www.ti.com/sc/docs/news/2001/01038.htm
and here to search of todays offerings from TI (Burr Brown): http://www.ti.com/audio-ic/converters/dac/overview.html

So in short: for stereo you need 2 channels - some DACs have 8 channels, so you can combine these and enhance the performance to a set of 2x4 if using stereo. Or you can let one DAC with 8 channels do only one channel = 8x1 and have dual DAC setup.In my opinion (!!) a dual DAC setup only makes real sense when using balanced amp setup and output. Since the ES100 uses the AKM4375A DAC with a build in/combo with an amp, using one chip per channel also improves the power output as the whole power is available per channel and doesn't have to be split. One of the reasons the ES100 sounds so good and can drive so many cans. It has quite a lot of power.

"our" DAC has 2 channels and is used in a 2x2 setup. Here is the spec sheet: https://www.akm.com/akm/en/file/datasheet/AK4375AECB.pdf and the promo page: https://www.akm.com/akm/en/product/datasheet1/?partno=AK4375AECB


Cheers.
 
Jul 18, 2018 at 11:49 PM Post #1,718 of 6,675
Is there a way to lock the codec in the ES100? or in android oreo? it connects in SBC every time and have to change it to LDAC in developer options, just want to skip this step
Bluetooth settings of es100 in a phone settings, not in the earstudio app.
 
Jul 19, 2018 at 12:34 AM Post #1,719 of 6,675
Is there a way to lock the codec in the ES100? or in android oreo? it connects in SBC every time and have to change it to LDAC in developer options, just want to skip this step
Open the phone's regular Bluetooth settings (not the developer options). It will show a list of paired devices. Tap on the settings (gear icon) for ES100. There should be a setting to enable the LDAC codec for ES100.
 
Jul 19, 2018 at 3:39 AM Post #1,720 of 6,675
Version 1.3.1 (July 19, 2018)

v1.3.1.zip (Download)
- Added L/R Trim volume

Another Update, hopefully some people will find this feature useful!

I just hope they change the LED setting a bit, so you can turn it but still get a short led notification during connection/disconnection/charging.
 
Jul 19, 2018 at 3:56 AM Post #1,722 of 6,675
Version 1.3.1 (July 19, 2018)

v1.3.1.zip (Download)
- Added L/R Trim volume

Another Update, hopefully some people will find this feature useful!

This update makes me very happy! Thank you Radsone and Wslee!

Now we just need wider EQ and ofc the ability to disable LDAC via earstudio app.
 
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Jul 19, 2018 at 4:12 AM Post #1,723 of 6,675
As one prominent banned member of this forum advised es100 is benefited the most from a balanced connection and my new two balanced cables just prove that. I really thank him for his advise not to buy expensive cables but affordable ones as they are more than enough.
IMG_20180719_073411740.jpg
IMG_20180718_194505399.jpg
 
Jul 19, 2018 at 5:53 AM Post #1,724 of 6,675
I don't see an option for shorter than 1.2m.
At the bottom of the order form there is a send msg box ask for 60cm cable length there, that's what I did.
 
Jul 19, 2018 at 6:01 AM Post #1,725 of 6,675
Cool update :) Utilising the Radsone logo to access the side menu is a lot easier to press on my tiny screen. Also nice to know there is a l/r trim should I need it thankyou @wslee !!
 
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