Re: Dummy Loads : Alan and Eddie ...

["Julio Moreno" <ciego@ig.com.br>]

the first people i hear about dummys : Van Halen ( his brown sound , a
Marshall with a dummy , send to the mxr pedals etcetc ) and Alan Holdsworth
, who make his own box , later name Juice Extractor ? by Rocktron ?  if you
go to Google , you will find something more  ... was my dream years ago ,
but no money for that here ... good health !
julio
----- Original Message -----
From: "Doug Cox" <bickleypunk@pdq.net>
To: <Loopers-Delight@loopers-delight.com>
Sent: Thursday, August 01, 2002 11:44 PM
Subject: Re: Dummy Loads, Line Outs, and thangs like that


> Mark,
>
> Thanks for the reply!
>
> My understanding is that there are some dummy load boxes that reproduce
the
> variable impedence (based on frequency) that a speaker cab usually
exhibits.
> This is exactly what I'm hoping to get some advice/experience on - which
> load boxes have people used and gotten satisfactory results?  I'm not
> depending on the JC-120 or it's speakers to provide this piece of the
> equation.  The JC-120s will simply amplify the final guitar signal (and
> guitar synth signal) after they have come out of the dummy-loaded Rivera
> (both preamp and power amp stages), gone through the EDP's, a Vortex, and
> some modulation effects (chorus, etc).
>
> Again, my understanding is that a "good" load box can give me a 
>reasonably
> good tone out of the Rivera, at line levels, which I can then pipe 
>through
> my rack.
>
> I'm not referring to an attenuator with a speaker sim here.  See
> http://www.soundsmith.com/fake.htm and the graph at the bottom of the
page,
> which shows how some load boxes can reproduce the behavior you are 
>talking
> about.  I used to have a PowerBrake, but didn't like the tone it caused 
>at
> the dummy load setting.  The graph seems to suggest why.  It also 
>suggests
> that the THD Hotplate and the PowerSoak cause ugly sounds for the same
> reason - no variable impendance.  The "Silent Speaker" shown in the graph
> seems like it would be wondermous...  but I can't find current info on 
>one
> anywhere.
>
> I remain hopeful that someone on the list can give me some useful advice!
>
> Doug
>
> ----- Original Message -----
> From: "Mark Sottilaro" <sine@zerocrossing.net>
> To: <Loopers-Delight@loopers-delight.com>
> Sent: Thursday, August 01, 2002 8:26 PM
> Subject: Re: Dummy Loads, Line Outs, and thangs like that
>
>
> > 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.
> >
>
>