From rafael2pop@yahoo.com.ar Wed Apr 26 16:03:45 2006
Subject:Re: Speakeasy mk III - price?

Let me share with the Forum how I felt ashamed when a
hi-fi builder asked to me if I knew exactly what means
1.5 Watt (no typo, just less than 2 Watt) in a certain
class AB tube amplifier with certain push pull circuit
and a plate with hundred of C.C. volts to get sound
loudness and sharpness enough, using custom built
speakers...etc. etc. etc.

I don't speak tube jargoon , unless in the audiophile
field.

Guess cause I only hear beautiful bass, mid and high
tones thru a Vintage Sansui , 60 Watt amp stereo amp,
all solid state audio.

Nor I will spend $500 in a bare tube preamp kit (i.e.
the Foreplay)

I will add to my home audio rig just a 40 Watt
subwoofer amp and that's it , with two
Vifa/Peerless/Audax speakers in front, will get a
nice 4.1 to enjoy , still lacking of a tube hi-fi
preamp.

On the other side, many guitarists played the classics
we usually hear just using bare tube amps with 18
watt
( BTW there is a related site called 18watt.com)

About the excessive amount of wattage heard these
days, guess that there are secrets of the trade not
often mentioned by manufacturers.

In the equation of loudness there are more than
nominal Watts as they come in the backplates.

I'm not talking of the whooping PMPO of MEGAwatts
usually advertised with integrated home consumer audio
but about serious tube guitar amps or high end hi-fi
tube amps.

It's known than Mr. Klipsch told once that "this
country lacks of a good 5 Watt amp"

And that at this times sounds extremely rare , for not
saying weird.

And believe it or not, the all tube Marshall JCM900
carries a preamp (seen at online schematics) with lot
ot tubes but also with a "TLO72 Dual JFET Input
Op-Amp"

Conversely speaking JFET is SOLID STATE and that's
within a tube amp.

It's nothing related to the series known as
"Valvestate" (hybrid approach)

JFET(also shares "FET" term with MOSFET ), as you
remember it's sorta thing began to be mentioned with
Bruce W. in a former thread.

Probably it will sound "heretic" for tube purists, but
it can be found in one of the acclaimed lastly known
Brit amps.

Hope Bruce as always do it in a clear way, can clarify
us if we can always have confidence of the amount "RMS
Watt" printed on solid state backplates (i.e. powered
speakers) and/or if can be directly compared with
those Watts of Hammond/Leslie vintage amps or tube
amps in general.

Guess that the SE Mark III with tubes, should be have
a very sweet and monster sound.

On the other hand also seems that some keyboardists
are missing low rotor mostly when that sound ia a key
to their repertoires.

Rafael

Message 6
From: "jake92028" jake92028@yahoo.com
Date: Wed Apr 26, 2006 6:05am(PDT)
Subject: Re: Speakeasy mk III - price?

Hmm.. well Don Leslie did create some kind of a
psychoacoustic miracle
when he made the 40 watt 122/147 Leslie tube amp sound
like more.
But
this still can't get around the fact that there's a
law of diminishing returns:
40 watts is 40 watts.

The MK III certainly has a brutal
beauty to it - I really like the look.

But $2195 is a lot of bucks for a stage monitor for
bands that play through House PA's with a sound
man.

If it's going to be a working man's regular stage
amplifier, it needs
more power, at least 200 watts, and whatever it takes
to maintain the
sound while keeping the cabinet as light as possible
for us older
guys - you'd be surprised how many are still around
and playing.

If you could get one with a speed control like the MS
univeral speed control pedal and a power cable for the
motor, a TRS phone plug into
the crossover - then maybe a tube amp/preamp head->200
watt mosfet..

Interesting.

I'm waiting for the drum rotor model :)
'steppenwoofer' Wj

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