[Ray Samuels]

  you should consider comapre the porthphile 627x against the rsa lighting 
 
check it out
 
http://www.headfonia.com/portaphile-micro-untexan/
 
http://www.headfonia.com/possibly-the-best-the-627/

I have used the expensive OPA627BP nine years ago in my XP-7 in conjunction with BUF634 & offered it 10 years ago with my first amp the HR-2 as an option. It is a great chip but it has high input noise which I won't recommend it in now a days portable amp that are designed for IEMs.
I read both of the links but I see no mention of the F-35, the lightning, which has some of the best lowest input noise op-amps that work great with IEMs. Also the lightning can swing in balanced around 32 volts p-p which is well needed to drive hard Ortho phones.
Ray

 

[Pappucho]

I have used the expensive OPA627BP nine years ago in my XP-7 in conjunction with BUF634 & offered it 10 years ago with my first amp the HR-2 as an option. It is a great chip but it has high input noise which I won't recommend it in now a days portable amp that are designed for IEMs.
I read both of the links but I see no mention of the F-35, the lightning, which has some of the best lowest input noise op-amps that work great with IEMs. Also the lightning can swing in balanced around 32 volts p-p which is well needed to drive hard Ortho phones.
Ray

if only we knew what opamps are u
sed in lightning so we can compare all of the specs.

 

[Lohb]

if only we knew what opamps are u
sed in lightning so we can compare all of the specs.

+me2 on that.

 

[AmberOzL]

I can't even believe that people still read headphonia

Seriously who finds their review fair and honest?

 

[SilverEars]

  I can't even believe that people still read headphonia

Seriously who finds their review fair and honest?

Can you expand on this?  What's going on with Headphonia?  Are they shady because they sell products?

 

[Pappucho]

Can you expand on this?  What's going on with Headphonia?  Are they shady because they sell products?

Just to clarify, are you guys talking about headfonia.com or headphonia.com? These are two different sites.

 

[AmberOzL]

  Can you expand on this?  What's going on with Headphonia?  Are they shady because they sell products?

Oh, I must apologize, my comment was based on this website: http://www.headfonia.com/
 
As you can see I made a mistake and misremember the name. I don't know about Headphonia but I checked the website I think it is from headstage manufacturer which makes Arrow portable amp.
 
As for the headfonia, I rather not to discuss here, my plain comment would be, just read their reviews and tell me these guys can be serious on this. Long time ago I stopped reading it and I don't even miss them.

 

[listen4joy]

i have dilema beetween  Centrance HiFi M8  and the rsa f-35 anyone know how they compare?

 

[AmberOzL]

M8 is dac/amp, F35 is only amp. What do you need, with what you are going to use?

 

[listen4joy]

with the amp

 

[AmberOzL]

If you gonna use it with amp why do you need F35? I don't get it what am I missing? Get M8 then, you can use its line out to add amp to the link but I don't really see the point of getting M8 and adding extra amp.

 

[Lohb]

Can anyone tell me the correct wiring for the Kobiconn for this amp ?
I'm switching my cables over to the style of plug.
Assuming the clip hole is "up" and the plug is installed on its side to allow better cable management....
What would
1
2
3
4
be for LR +/- in the RSA plugging system ?
 
{ EDIT : Incorrect numbering system annotated photo for Kobiconn plug removed }

 

[SiGiE]

  Can anyone tell me the correct wiring for the Kobiconn for this amp ?
I'm switching my cables over to the style of plug.
Assuming the clip hole is "up" and the plug is installed on its side to allow better cable management....
What would
1
2
3
4
be for LR +/- in the RSA plugging system ?
 

Balanced connector pins assignment:

Pin # one is Positive signal of left channel. Pin # three is the Negative signal of the left channel
Pin # two is the Positive signal of the right channel. Pin # four is the Native signal of the right Channel.
 
NOTE: Your number assignment seem to be incorrect.  Please follow the embossed number assignment  beside the soldering pin of the male connector/plug. 

 

 

[Lohb]

 

Balanced connector pins assignment:

Pin # one is Positive signal of left channel. Pin # three is the Negative signal of the left channel
Pin # two is the Positive signal of the right channel. Pin # four is the Native signal of the right Channel.
 
NOTE: Your number assignment seem to be incorrect.  Please follow the embossed number assignment  beside the soldering pin of the male connector/plug. 

 

I saw that already and can make no sense of the schematic drawing.....so that is why I posted a real plug with numbers attached and not a technical drawing which I cannot figure out is up down left or right view !

 

[SiGiE]

 
I saw that already and can make no sense of the schematic drawing.....so that is why I posted a real plug with numbers attached and not a technical drawing which I cannot figure out is up down left or right view !

From your labels, number 1 should be 4 and  number 4 should be 1.