[zachchen1996]

I don't see it as being less detailed. The presentation is different. Overall it's a neutral Op-Amp. 627AP would be less detailed due to the treble appearing to be somewhat rolled off. But what that Op-Amp makes up for is detail in its mids and bass. So 627AP would be the most musical of them all while 8610 has qualities of both sounds IMO without going overboard on either.

I see, but less sound stage from the 8610 is going to be a problem though.

 

[zachchen1996]

Does anyone own the he-400 and he-500? Was wondering if the uha-6s mkii could properly drive them both well.

 

[lee730]

Quote:

I see, but less sound stage from the 8610 is going to be a problem though.

Less width but more depth to the sound stage. Different presentations. With more depth you are taken deeper into the recording.

 

[uelover]

Quote:

Less width but more depth to the sound stage. Different presentations. With more depth you are taken deeper into the recording.

 
Like entering into a tunnel.

 
j/k

 

[lee730]

Quote:

 
Like entering into a tunnel.

 
j/k

A very euphoric tunnel . Maybe you can get your hands on a pair? I think it really combines good qualities of both 209 and 627 .

 

[FACSman]

I just started using the new cable last weekend; need at least 100 hours of BURN-IN for " Optimal Sound Quality".
 
That's what the enclosed card said.

 

[FACSman]

Above is in response to "jhelsas" question.

 

[uelover]

Quote:

A very euphoric tunnel . Maybe you can get your hands on a pair? I think it really combines good qualities of both 209 and 627 .

 
I would if the shipping from Nick doesn't cost that much. Haha.

 

[ardgedee]

Quote:

Does anyone own the he-400 and he-500? Was wondering if the uha-6s mkii could properly drive them both well.

 
It should. They're not hard to drive, as full-sized headphones go.
 
The HE-400 was specifically designed to be drivable by phones and portable media players, so the Leckertons should have no problem. The HE-500 is more demanding, but it should still be easier to drive than many of Sennheiser's or Beyerdynamics' cans.
 
Most orthodynamics are neither more nor less efficient than most open-back dynamic headphones. The HE-6 can be very demanding and that's established a particular kind of reputation for orthos of being power hungry. (Even the HE-6 will also sound okay through a portable amp -- it just won't have a lot of dynamic range).

 

[dan_can]

I've got a pair of opa627BP. Can they be used in this amp?
 
Wish there was amp only (without dac) option.

 

[lee730]

Not sure. The pins would have to match up on the board.
 

 

[zeinharis]

Quote:

Does anyone own the he-400 and he-500? Was wondering if the uha-6s mkii could properly drive them both well.

 
See if the uha-6s mkii can draw more than 400 mW per channel (at least), it do than the uha-6s mkii can drive the HE-500 (HE-500 needs 1W @89dB)

 

[ardgedee]

See if the uha-6s mkii can draw more than 400 mW per channel (at least), it do than the uha-6s mkii can drive the HE-500 (HE-500 needs 1W @89dB)

That's 89 dB at 1 milliWatt at 38 Ohm. You're off by a few decimal places.

Headphone efficiency measurements are assumed as milliWatts unless stated otherwise.

 

[zeinharis]

Quote:

That's 89 dB at 1 milliWatt at 38 Ohm. You're off by a few decimal places.
Headphone efficiency measurements are assumed as milliWatts unless stated otherwise.

 
Sorry for the miss information, that is what i meant

 

[DigitalFreak]

My new Leckerton amp order with extra op amps has now been placed. I've given it some thought and I've come to the conclusion that I shall name this new amp....wait for it.........(drum roll).....I shall name this new amp Eva. I best get Itoru, Sally, and Marilyn together and tell them the good news. The girls are going to be so happy to have a new sister around.