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Post by merton on Dec 28, 2006 20:13:53 GMT
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rickcr42
Fully Modded
Rest in peace my good friend.
Posts: 4,514
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Post by rickcr42 on Dec 28, 2006 20:46:42 GMT
other than the Headroom amps the only mainstream headphone amps to incorporate the crossfeed you had inquired about in another thread.
I personally am not a fan of the LM6172 or BUF634 chips but many many are so just a taste thing but for pure good engineering and well thought out designs that are about as bullet proof as it gets the Meiers are right there with the best of them. Everything is properly layed out and bypassed for real world (not work bench theory) use unlike the majority of "El Cheapo DIY4Profit" amps that are no more than stuffing a pcb then stuffing it in a box with theirname on it with just about none of them "completed" designs and why the forums are all full of "can someone help me with my Brand-X amp problem ?" type posts.
Mike had one for sale earlier that may or may not be still available along with a bunch of other amps.Check the for sale section here
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darynalexander
100+
will probably give you some sort of disease.
Posts: 179
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Post by darynalexander on Dec 29, 2006 0:16:47 GMT
I think their sound is a tad bright but their detailed implementation of crossfeed is excellent. Also, they are built very well in both new and old models.
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rickcr42
Fully Modded
Rest in peace my good friend.
Posts: 4,514
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Post by rickcr42 on Dec 29, 2006 3:07:07 GMT
the LM6171 chip Daryn.Probably fine for those who grew up with digital only sources and "bright" or "etched" as their reference sound but a bit too edgy for the analog guys like me who prefer a less "in yo face jerky boy" sound. the amp itself is likely a good candidate for op amp rolling within the limitations of the feedback loop impedance and supporting circuitry for those of the same opinion of the chip.May even be able to remove some stuff with another OA in place......
**
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lini
Been here a while!
Groanings from Han(g)over
Posts: 191
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Post by lini on Dec 29, 2006 18:56:22 GMT
Rick: Mhmmmhmhmhmmm, strange - I generally prefer vinyl over cds, too, but I couldn't really complain about the sound of Jan's amps. But, then again, I haven't yet had much chance to check other dedicated headphone amps (except the Pro-Ject HeadBox (original version), which to my ears couldn't even compete with a PortaCorda II...) - maybe I'm missing out...
Greetings from Munich!
Manfred / lini
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rickcr42
Fully Modded
Rest in peace my good friend.
Posts: 4,514
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Post by rickcr42 on Dec 29, 2006 19:55:08 GMT
could just be a system synergy thing Manfred.That or personal taste and why I used the disclaimer of "personally no fan of... in my initial response. Actually would be a pretty boring world if we all had the same stuff and the same taste (and would mean a damn lot of forms would be ghost towns like this one ). I like a more "relaxed" sonic profile that does not push content at me or highlight individual notes unless the section is one with a solo artist featured,a thing I hear at a live event where it is the blending of instruments that makes up the whole and would be hard pressed to pull one out of the mix without intentionally concentrating on it. I know,shut up rick Greets from Sunny Connecticut where winter seems to have missed "Mt. Rick" entirely and i am not complaining one bit ! Rickster
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rickcr42
Fully Modded
Rest in peace my good friend.
Posts: 4,514
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Post by rickcr42 on Dec 29, 2006 20:35:26 GMT
more in response to Manfred : was checking on drive requirements for the Senn HD-25 and the google turned up Jan Meier's profile at Headwize that when I looked noticed his taste in headphones is exactly the cans that would create a good synergy with the LM61XX chips which is upper register emphasis to balance with the reticent top end of the senn cans. This is the exact opposite sonic signature that is wanted when used with my preferred manufacturer "house sound" which as most know is the Grado sound. Mate that type of chip with an already "there" top end and you get a sound that is to me very disagreeable but that used with Senns,maybe the higher end AKGs other than the K1000 or likely even KOSS (not much experience with Beyer or Ultrasone so no vcomment ) brings everything into balance so could be why there are so many love it/can't stand it opposing views on the chip itself synergy IS everything and better a matched system then the best of everything that has no business in the same room together even
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rickcr42
Fully Modded
Rest in peace my good friend.
Posts: 4,514
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Post by rickcr42 on Dec 29, 2006 21:00:31 GMT
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rickcr42
Fully Modded
Rest in peace my good friend.
Posts: 4,514
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Post by rickcr42 on Dec 29, 2006 21:13:18 GMT
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