From bruce@ashbysolutions.com Fri Mar 17 05:10:16 2000
Subject:RE: [Voce] Voce V5 with Leslie 147 question

Pete,

I've always been a fan of less-is-more. You simply need to get the
Leslie input up in the 12-20V range for a Model 147, which many small
practice combos do very well. In the case of a Model 122, it gets more
complicated: you need to provide a differential output, plus a DC
offset to control the speed change.

I prefer no EQ on my Leslie at all, assuming that it's a stock tube
Leslie. If it's not using the built-in tube amp, a fairly sharp rolloff
above 5.5kHz (122-cloning) or 7kHz (147-cloning) is called for.

As for the old preamps, I've heard that they're noisy -- I haven't used
one since the early 80's, when the minimum standard for "quality audio"
was a bit lower -- but otherwise acceptable. Although they're pricey,
the Trek II preamps are excellent, and have the added ability to drive
up to four different Leslie styles (122, 147, 9-pin, 11-pin) at once.
We used one of them at the Great Clone Shootout a few years back, and it
worked well.

Best regards,

-BW

--
Bruce Wahler
Ashby Solutions™
Voce Support Group moderator
978.386.7389
bruce@ashbysolutions.com

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-----Original Message-----
From: Pete Whittaker [mailto:pete1000@waitrose.com]
Sent: Friday, March 17, 2000 6:46a
To: Voce Support
Subject: [Voce] Voce V5 with Leslie 147 question

From: Pete Whittaker

Hi everyone,
I've finally got round to playing my V5 through my 147-type Leslie.
Since I've never owned one of those Leslie preamp things that takes care
of the rotor switching etc., I used something we made a few years ago
out of a redundant guitar practice amp. Although this unit is fine at
providing power and controlling the rotor speed, the audio circuitry is
predictably basic to say the least. Therefore, I used one side of a
power amp (working very gently) to drive the 147's audio input, and the
quality was excellent.
My question is this:
For a gigging rig, what would be the ideal amp to drive the Leslie
input in this manner? Ideally it would be something that could be housed
in the same modest box that contains the power/switches/socket. Perhaps
there are suitable high quality amp circuits that would be relatively
straightforward even for a novice like me to fit? I realise that the
input on the Leslie's amp is quite flexible ( a B3's output is way less
than that of my studio power amp! ) but what are the pros and cons of
the various options?
I've heard elsewhere that the old Leslie preamps aren't exactly
brilliant in the audio department. Does anyone have any views on them?
By the way, the V5's percussion sounds a whole lot more up-front through
the 147 with a little eq-ing. I didn't spend much time on it, but try
boosting the mids from around 800Hz through to 4 KHz to taste.
Cheers,
Pete W

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