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What is the impedance of your headphones? How many ohms?
How important are special circuits, circuits that enhance headphone listening, like the crossfeed filter? Are they really an improvement? Is a normal (no enhancement circuit), excellent sounding (maybe class A) amp enough to satisfy most headphone users?
Like if there was a headphone amp that could grant the HD600s its otherwise totally rolled off low end (IMHO) that would be nice.
Got busy there for a while sorry for the delay.Yes, the headphone issue is pretty complex. Our preamps only have +/- 18VDC rails which 2V more than some of the specialized amps have but it seems boarderline to me for some HPs.They come in several types and different impedances and they need to be treated differently. Yes, HPs require some special attention, to really do them justice, especially for serious audiophile users.I think we will mull this over and possibly wait to produce a dedicated u ...
Curt:I think you are taking the right approach. But don't abandon the project-if you can come out with a high quality $500 headphone amp, there are a lot of buyers out there in that market. Two reccommendations: First, really research crossfeed and do the best, most adaptable implementation of it you can. My current amp (otherwise top quality) doesn't have it and I miss it-to the extent I will probably pick up an external unit someday. Secondly, the Senn 600 is the 800 pound gorilla of the head ...