[veuxtres]

the real life size is slightly shorter than ak120 but slightly wider

 

[Fungus]

yea is the muse01 edition
Sry, i just got it for few hours ago and tried only about 30 mins and batt gone flat lol.
Cant really comment on it yet.

Anyway, For the 1st 30 mins i tried vs the sr71a i feel that actually sr71a feels fuller, specially bass impact is almost a level above (fuller maybe due to the bass and low frequency ).

But if other than that, i think 627 micro wins everything ( by alittle bit)
soundstage wider saperation better, smoother and clean. Not full as sr71a but not thin. Vocal feels more comfortable.

using ak120+tg334 alo sxc 22 ic cable.

i will still prefer sr71a when listen R&B and bassy music.

This just my 30 min experience. It will be different after burn in.
Please dont take it serious yet, because 30 min is really not enough to comment it

im actually very curious how does it compare with the non muse01 version ,627 and 627x
too bad i think no ppl own all at the same time lol.

Can you hear any background hiss or channel unbalance (low volume) using iems?  

 

[veuxtres]

I did hear very very slight hiss while no music playing,

I didnt notice any channel unbalance at my listening level atleast.

But theres a problem which is The amp will not work if you charging the ak120 and the amp at the same time with a same pc ( which i only tried both usb just side by side each other) or a same multi usb charger.
It will produce only very heavy noise and no music at all after u start playing the dap
Im not sure this problem happens to all usb charging amp or not.

 

[Fungus]

Most laptop only provides 0.5A of current using through the USB. From what I've been told, the amp requires at least 1A current so needs two usb ports to charge.  
 
So there is channel unbalance below listening level huh, damn. 
 
If the hiss is only audible when the dap is playing, it may not be the amp but part of actual recording which is good. 

 

[Sasaki]

I got my Portaphile Micro Muses01 version.
I hooked it up with RWAK120-B(via singled ended). This combo sounds remarkably good.
Even though it is just out of box, I swapped back and forth with my previous Portaphile 627. This is not a formal audition but I felt Muses01 version is even better to bring out the subtle detail representation of RWAK120-B. Muses01 version is awesome.
At first I thought the Muses version would be dry and analytical but I feel the sound signature is not so far from 627 version at the moment.
Anyway these are tentative impressions.
Earphone plug has been also improved, I think this is now same to QuickStep.

 

[veuxtres]

Most laptop only provides 0.5A of current using through the USB. From what I've been told, the amp requires at least 1A current so needs two usb ports to charge.  

So there is channel unbalance below listening level huh, damn. 

If the hiss is only audible when the dap is playing, it may not be the amp but part of actual recording which is good. 

I dont know is there any channel unbalance, atleast i didnt notice any. And i nv try to listen below my listening level.

The hiss is when "no music playing" means i never started to play the dap

 

[OmsJtmz32]

The 627 is great, had it for months , no hissing with ciem/iem or whatsoever. Would love to try the micro with muse01 one day, Im sure it will fantastic. To add on, Cesar's customer service is awesome.

 

[veuxtres]

The 627 is great, had it for months , no hissing with ciem/iem or whatsoever. Would love to try the micro with muse01 one day, Im sure it will fantastic. To add on, Cesar's customer service is awesome.

Agree! I love cesar lol

 

[Lohb]

Anyone had a chance to compare the Portaphile with either RSA F-35 Lightning or long-shot I know given the opamp rolling....iBasso PB2 (LME49990) ?

 

[Paulo83]

By any chance has anyone tried pairing the 627x with rwak100 and hd650? I love my hd650 and am looking for something portable for traveling/work.

 

[BucketInABucket]

Wouldn't exactly call the HD650 portable!

 

[Paulo83]

Ok I'll rephrase to 'more portable' lol. I work away quite a lot staying in hotels, looking for a decent rig to take away, not necessarily thinking walking down the street or on the train lol

 

[BucketInABucket]

Off the top of my head.

Full-size:
MDR-7520, Fidelio L2, Focal Spirit Classic

On-ear:
HD25 ALU, Beyer T51P, Thinksound ON-1.

 

[Aero Dynamik]

By any chance has anyone tried pairing the 627x with rwak100 and hd650? I love my hd650 and am looking for something portable for traveling/work.

Yes, the HD 650 and the 627X match very well, at least in my book. No problem whatsoever driving the 300 Ohm HD 650.

 

[BucketInABucket]

Damn I love the 627 Micro. Drives everything I throw at it to an extremely respectable - even the 2000ohm HD424!