|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
76.121.93.20
In Reply to: RE: The heat of a headphone OTL amp.... posted by wangmr on August 11, 2014 at 06:19:10
"- heat: i'm afraid of heat issues and figure this would be a released in a minor way in a headphone amp.lastly, does heat released ever interfere with the sound, somehow 'get in the way' of what one hears? (this would be more of a general question on the matter, i realize)"
Without heat, the tubes will not operate, so it is simply a necessity for operation.
It's pretty tough to speak to how much of the flavor of an OTL amp that you'll get out of an OTL headphone amp. Generally OTL speaker amps are considerably more complex (not necessarily in a bad way), as they have to deal with the bizarre impedance curves found in many hifi loudspeakers, and generally several output devices are required per channel to adequately drive a pair of loudspeakers. (Headphones are pretty well behaved in terms of impedance, and a strictly high impedance headphone amp can be built with one triode per channel)
Edits: 08/12/14Follow Ups:
With all respect, any amplifier has to deal with "the bizarre impedance curves found in many hifi loudspeakers". Yes, OTLs generally require lots of output tubes in parallel in order to transfer adequate power into low impedance speakers. But the upstream circuitry is usually no more complex than that of any tube amplfier, and the elimination of the output transformer IMO lessens the complexity of the output stage compared to OTC amplifiers, apart from paralleling tubes.
Yeah, my point was that headphones as a whole are much more benign than loudspeakers as a whole, so an OTL headphone amp need not be as difficult to design as an OTL speaker amp.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: