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Re: Dummy Loads, Line Outs, and thangs like that



here is a 2nd for thd hotplates-i'm a stickler for tube tone detail(hard to
tell,i know) and when i gets vintagee and pull out my fender '65 blackface
dual showman, take the spkr load outa that to thd and go into the power 
side
of redknob fender twin or showman-or peavey deltablues-or yes a jc120 i get
the best possible leofender tube tone source bein powered by some heavee
duty modern day amps. i dont hear no stinking degredation-if i did it
wouldnt fly.
the thds have a light bulb inside that reacts to the load-the more its 
takin
the brighter it gets-cool to watch and  play.they got spkr outs and line
out.i've had powerbrakes,powersoaks... and as kim says you need sompin that
*reacts*(duh!).
s

> actually the better quality loads use a reactive impedance to emulate the
> reactive properties of speakers. The crappy ones use a purely resistive
> load, which would not sound as good for the reasons you mentioned.
> 
> I was looking into this a few years ago to get a line out of my 
>simulclass
> 2:90,  as well as be able to run the tubes into distortion without
> shattering the walls of my building. I never got around to actually 
>getting
> one, but at the time I was favoring the THD hotplates. They have a 
>variety
> of loads for different impedance power amp outs. There may be other 
>options
> now, I don't know.
> 
> kim
> 
> 
> At 06:26 PM 8/1/2002, Mark Sottilaro wrote:
>> The problem with what you're proposing is that part of what makes a 
>tube amp
>> "warm" is the interaction with the load (speaker) and the tube amplifier
>> stage.  The thing about a speaker is it's impedance rating is not 
>fixed.  It
>> actually changes based on the frequency it's trying to reproduce and 
>other
>> factors.  Anyway, the interplay between how the speaker effects the amp 
>is
>> what
>> it's all about.  OK, well what some of it's about.  Transistors do not 
>behave
>> in this way.
>> 
>> Mark Sottilaro
>> 
>> Doug Cox wrote:
>> 
>>> Yes, I know.  However, if you'll notice the proposed signal path I
>>> mentioned, it ends with two JC-120s, guitar amps with 12" speakers.
> 
> ______________________________________________________________________
> Kim Flint                     | Looper's Delight
> kflint@loopers-delight.com    | http://www.loopers-delight.com
>