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Unique Melody Miracle Review & Impressions Thread - Page 49

post #721 of 2921
Quote:
Originally Posted by psygeist View Post

^^you got RE272 too. How do you compare that to Miracle ?
While RE-272 is a good IEM, I don't even think about comparing it to Miracle. Next to Miracle, RE-272 is flawed. It's frequency response is, for sure: too little bass and also a drop in the upper mids and treble. It doesn't play rhythmical music well because of bass roll off and doesn't play classical well because of the drop in the upper frequencies. This makes it poor compared to the Miracle. After EQ on the RE-272, it might be doing better, but it is still flawed as it is. I use it for my phone, and in that use it does fine.
post #722 of 2921
Quote:
Originally Posted by longbowbbs View Post

How much time were on the HD800's? I have found they need some break in time...(200+ hours or so)

It was a demo unit in a shop, so I don't know, but I think they had it for quite a while. I compared HD800, HE-6, LCD-2, LCD-3 and TH900. From brightest to darkest it was: HD800, HE-6, TH900, LCD-2, LCD-3. In other words: HD800 is WAY too bright (too much treble and too little bass), HE-6 has too much treble, TH900 is balanced, but with a V-shaped freq curve and a dry treble, LCD-2 has too little upper mids and treble, and LCD-3 has WAY too little upper mids and treble.

 

I didn't have the Miracle at that time, but in terms of frequency response it would probably be a clear winner in this high end full size company. By winner I mean having an almost flat frequency response. To me, Miracle has a slightly V-shaped frequency response, but when I say slightly here, I really mean slightly - like barely noticeable. Maybe it is only a slight (sub) bass boost. This however is when driven by Soloist, which has less than 1 Ohm output impedance. Using the HM-801 with GAME amp (having 32 Ohm output impedance), it has noticeably less bass and also a little more treble.

 

In other words, the sound signature / frequency response will be determined somewhat by the output impedance of the amp. This is allegedly because it is a multi BA IEM.

post #723 of 2921
Quote:
Originally Posted by Cryok95 View Post

The T1s are FAR warmer than the miracles.. That's the biggest difference between them, IMO.

I haven't heard the T1, but comapring the freq graph to the HD800, I would expect, that the source you used driving the Miracle has a high output impedance, because it makes it sound brighter.

 

post #724 of 2921
Quote:
Originally Posted by LarsHP View Post

It was a demo unit in a shop, so I don't know, but I think they had it for quite a while. I compared HD800, HE-6, LCD-2, LCD-3 and TH900. From brightest to darkest it was: HD800, HE-6, TH900, LCD-2, LCD-3. In other words: HD800 is WAY too bright (too much treble and too little bass), HE-6 has too much treble, TH900 is balanced, but with a V-shaped freq curve and a dry treble, LCD-2 has too little upper mids and treble, and LCD-3 has WAY too little upper mids and treble.

 

I didn't have the Miracle at that time, but in terms of frequency response it would probably be a clear winner in this high end full size company. By winner I mean having an almost flat frequency response. To me, Miracle has a slightly V-shaped frequency response, but when I say slightly here, I really mean slightly - like barely noticeable. Maybe it is only a slight (sub) bass boost. This however is when driven by Soloist, which has less than 1 Ohm output impedance. Using the HM-801 with GAME amp (having 32 Ohm output impedance), it has noticeably less bass and also a little more treble.

 

In other words, the sound signature / frequency response will be determined somewhat by the output impedance of the amp. This is allegedly because it is a multi BA IEM.

V-shape is very common to some IEMs and CIEMs, even though they are very neutral.

I don't think V-shape is because of IEMs themselves, but because of recording of songs and our device.

Like EX1000, its vocal sounds laid-back with Ipod Classic, but paired with AK100, its overal tone is just fine.

post #725 of 2921
Quote:
Originally Posted by LarsHP View Post

I haven't heard the T1, but comapring the freq graph to the HD800, I would expect, that the source you used driving the Miracle has a high output impedance, because it makes it sound brighter.



My bad, I though you guys were talking about the ACS T1 Triple Driver CIEM smily_headphones1.gif
post #726 of 2921
Quote:
Originally Posted by Alias Gu View Post

V-shape is very common to some IEMs and CIEMs, even though they are very neutral.

I don't think V-shape is because of IEMs themselves, but because of recording of songs and our device.

Like EX1000, its vocal sounds laid-back with Ipod Classic, but paired with AK100, its overal tone is just fine.

As I said, the V-shape curve is just slightly so. My impression is from using amps with both high and very low output impedance - and playing a VERY wide variety of music: pop, dance, jazz, classical, vocal etc. etc. - all tracks I know very well.

 

AK100 has a moderate or slightly high output impedance of 10 Ohms. Saying you think it sounds very balanced makes quite sense to me, because when using my Balanced Amp module, which also has about 10 Ohms in output impedance, it sounds very close to neutral.

 

Again: my point is that the output impedance of the amp used, will determine how the Miracle will sound.

post #727 of 2921
Quote:
Originally Posted by Cryok95 View Post

My bad, I though you guys were talking about the ACS T1 Triple Driver CIEM smily_headphones1.gif

Maybe it is my bad! I thought you talked about the Beyer T1. Sorry!

I was comparing full size cans in the previous posts, so I thought of the Beyer when you said T1 ...

post #728 of 2921
The output impedance is really important. The true performance of any earphone/headphone (ie how it was intended to sound) requires a sufficiently low output impedance compared to the phone's impedance. Although not perfect, the 1/8 rule is a reasonable estimation.

If you're using phones with a device where output impedance is anything more than phone impedance divided by 8, you're likely not hearing the true sound signature and tonal qualities of the earphone/headphone.

I don't mean to be controlling because personal taste is super important, but for the sake of comparisons, can we talk about the phones when connected to optimal devices? (ie 0-2 ohm outputs for Miracles and similar 15ohm CIEMs)

Don't mean to rant, but I've heard the difference between good impedance matching and poor and it's night and day with the Miracles.
post #729 of 2921
Quote:
Originally Posted by Loquah View Post

The output impedance is really important. The true performance of any earphone/headphone (ie how it was intended to sound) requires a sufficiently low output impedance compared to the phone's impedance. Although not perfect, the 1/8 rule is a reasonable estimation.

If you're using phones with a device where output impedance is anything more than phone impedance divided by 8, you're likely not hearing the true sound signature and tonal qualities of the earphone/headphone.

I don't mean to be controlling because personal taste is super important, but for the sake of comparisons, can we talk about the phones when connected to optimal devices? (ie 0-2 ohm outputs for Miracles and similar 15ohm CIEMs)

Don't mean to rant, but I've heard the difference between good impedance matching and poor and it's night and day with the Miracles.

I completely agree to you. Miracles do really need to be matched accordingly or else it will sound awful.

post #730 of 2921
Quote:
Originally Posted by Loquah View Post

The output impedance is really important. The true performance of any earphone/headphone (ie how it was intended to sound) requires a sufficiently low output impedance compared to the phone's impedance. Although not perfect, the 1/8 rule is a reasonable estimation.

If you're using phones with a device where output impedance is anything more than phone impedance divided by 8, you're likely not hearing the true sound signature and tonal qualities of the earphone/headphone.

I don't mean to be controlling because personal taste is super important, but for the sake of comparisons, can we talk about the phones when connected to optimal devices? (ie 0-2 ohm outputs for Miracles and similar 15ohm CIEMs)

Don't mean to rant, but I've heard the difference between good impedance matching and poor and it's night and day with the Miracles.

 

What would you recommend to use for the Miracle?

post #731 of 2921
Quote:
Originally Posted by LarsHP View Post

AK100 has a moderate or slightly high output impedance of 10 Ohms. Saying you think it sounds very balanced makes quite sense tme, because when using my Balanced Amp module, which also has about 10 Ohms in output impedance, it sounds very close to neutral.

 

Again: my point is that the output impedance of the amp used, will determine how the Miracle will sound.

I think the output impedance of the stock AK100 is 20+   There is a mod done by Red Wine Audio which decreases it to 1. 

post #732 of 2921

I have the Tralucent T1 amplifier (sorry to bring another "T1" into the mix!)

 

The Tralucent T1 has output impedance of around 0.1-0.2 ohm so it pairs beautifully with anything. It has the slightest hint of colouration (in much the same way as the Miracles have a hint of V-shape signature), but overall the T-T1 is transparent and smooth and makes the Miracles sound the best of anything else I've used them with (mostly due to impedance matching).

 

I've tried the Miracles with various USB-powered DACs attached to my laptop and am currently awaiting the return of my Miracles to test the Audioquest Dragonfly which is rated for IEMs down below 15 ohms. I've also connected it to my Cowon X7, iPod 5.5G, and Audio-gd NFB-5.2. Nothing comes close to the T-T1.

 

Of course, there are other amps out there which will do an equal or better job, but the T-T1 is amazing for its price (<$300) and performance combination.

post #733 of 2921
Quote:
Originally Posted by Alias Gu View Post

V-shape is very common to some IEMs and CIEMs, even though they are very neutral.

I don't think V-shape is because of IEMs themselves, but because of recording of songs and our device.

 

weird

post #734 of 2921
Quote:
Originally Posted by Saraguie View Post

I think the output impedance of the stock AK100 is 20+   There is a mod done by Red Wine Audio which decreases it to 1. 
Okay, thanks. I remembered it as being 10+ Ohms, not 20. iRiver has explained why they chose to add resistance, so it's a design choice actually, but bad for multi BA IEMs.
post #735 of 2921
I was amazed to read that about AK100. Why make a high end portable player that doesn't suit the best portable listening devices?

That's where DX100 got it right.

Anyone know output impedance of Cowon X7?
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