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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: I can't see the distortion for all the harmonics ..... posted by mfc on July 16, 2003 at 21:43:43:
I think its ok to develop a hypothesis and then get data.
Another way to do it is data mining (look at the data, form
a hypothesis). There are probably a lot of things that need
to be connected together, it all takes time.But the data one gathers will depend on what the hypothesis is.
If the hypothesis is that different emitter followers sound different, it seems to me that gathering data on the objective differences between followers is rather putting the cart before the horse. The data to be gathered in that case would be data which etablishes that they do sound different.
One thing I'd like to get data for is to see how compensation influences the distortion behavior of diferent follower stages.
That's fine. That's within the objective realm.
Question for you: The amp you built...was that a headphone
amp? If so, then I can see where a headphone would act as a very
light load for your amp.No, it wasn't a headphone amp. If it were, I doubt I'd have used those 15 amp devices. :)
Have you ever tried compensating the circuit to see if it made any changes in the sound?
Yes, but to me it didn't produce any change I could put my finger on. Keep in mind that I'm using it with an input transformer which has an inherent low-pass function and its -3dB point is 120kHz.
Unfotunately, my speakers are not efficient and I'll never be able to run them from a simple emitter follower.
I'm not using it as a simple emitter follower. The input transformer provides about 14dB of voltage gain.
se
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Follow Ups
- Re: I can't see the distortion for all the harmonics ..... - Steve Eddy 07/16/0322:19:38 07/16/03 (0)
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