No one knows, no one measured? CA techsupport silent, looks like it is classified :laughing:

Well, my IEMatch has arrived and I'm happy with it, can't hear hiss anymore. As to frequency response of CA Solaris - there are some measurements in Solaris's thread - iEMatch brings very small changes to original response.

What does mean full potential? How we can tell if this sounds as a fully potential?

Yeah, I could, but they sound so freaking amazing, love them:(

Ah, yeah, damping, sorry :beyersmile: Well, I have Campfire Audio Solaris, and these IEMs have very low impedance at 1kHz - 10ohms, plus there is info that they have impedance 3ohms <100Hz and about 9ohms beyond 1kHz. My source have output impedance 0.1ohms. But it has very noticable hiss, so...

Hi Guys, please, help me. If I have AMP with output impedance like, for example, 1 Ohm and a cable with it's own impedance, say, 3 Ohm, will they sum for a total of 4Ohms or only the last value does matter to calculate dumping factor for headphones?

Hey! What impedance does a Solaris cable have?

Well, it does not yet, coz Magni is definitely not a portable AMP:) But I have already bought iFi iEMatch, it will arrive in a week or two. Then I'll check if it works... But thanks everyone for clarifications! :thumbsup:

Thanks guys! I'm going to try iEMatch and check more portable AMPs. BTW, with my Schiit Magni 2U there is no hiss at all.

Well, I don't know what the recommended values, but you can check DAP specs here. IEM specs are: 115 dB SPL/mW Sensitivity and 10 Ohms@1kHz Impedance. I've just tried several more DAPs, like iBasso DX220, iBasso DX150, FiiO X5 III - they all have noticeable hiss with this IEMs. Didin't checked...

Hey! I've just bought new and sensitive iems (CA Solaris) and now I hear very noticeable hiss from my portable iBasso DX80 player. Is there any way to eliminate that hiss or the only way is to change DAP for a more "silent" one?

  Do you have fade-out/in issue?

  Just did it. On my PC and laptop. I can install only 2.0.5 over BT. All the FWs show me "Check Chip Fail".

  With both - dx90 and dx80 - batch tools it shows me "check chip fail". Strange...   Tried different usb cables - no effect.   Now I can't start my DX90 at all. Power button doesn't work. Black screen...)))   Works with 2.0.5. And only with 2.0.5. If there any chance to use this tool for...

So as far as I understand, there is no one working solution for fade-in/out problem during playing music? I have tried to use different SD cards, factory reset, rescanning of library... nothing works.

Just did blind comparison between iBasso DX90 and L5Pro (with LINE5 A985 Headphone Output Switcher) with level matched volumes. Headphones HD650 and AM14 CIEM. Well... I couldn't differentiate one from another  

Ah, yes:) Thank you.

50 Ohms?! Are you kidding? If that's true, it means DAP will work without changing headphones frequency only for 400+ Ohm headphones. Maybe you mean less than 0.5?

What is the output impedance of L5Pro?

Don't you have local audiophile shop? Buy some DAC+AMP and listen to it, compare to your STX. Then return DAC+AMP to shop, tell them "It sound sooooo boring, no air, soundstage is so bad':)

  The best way to improve quality of your system - is to change headphones. In that case you will hear differences and they will be obvious. STX is a great stuff, at least for high impedance headphones (you shouldn't use any HP with impedance less than 80 with it), and HD650 is 300 Ohm HP, so...

  Yes, I've listened to STX and Schiit stack via line5 a985 with HD650 - they both sound well and I really can't say they have any differences...

In society of audiophiles people can say anything they want and that's OK And you should believe them. Coz... you know. Gentlemans always believe each other   Never had ODAC, but I have STX and Schiit Modi2U+Magni2U. I can't hear any differences with HD650.

I've just tried one more time to compare iBasso DX90 and Hifiman HM603. One song, volume level matched by ear. I've tried this for 30 minutes. Don't know where the magic of multibit DAC (HM603), but they sounded both well and indistinguishably from each other:)    

Same for Ukraine:) My friend - owner of local audiophile shop. He was told me that hi-end stuff usually buy faster, than cheaper ones. So it's OK.