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Fender Vibroverb 63 Re-issue
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stratman323
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PostPosted: Mon Jun 30, 2008 4:06 am    Post subject: Reply with quote

Hmmm. Won't using one of those things mean that I lose the clean headroom I have? I do prefer a clean sound for around half the songs in the set - if I use an attenuator to improve the overdrive sound, surely all I will be doing is reducing the overall volume, and therefor my ability to get a clean sound at decent volume?
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AlanN
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PostPosted: Mon Jun 30, 2008 4:22 am    Post subject: Reply with quote

It's just another dial, Mike; you can turn it up and down mid-set with everything running IIRC (as it sits between your amp and speakers, and "soaks up" the volume).
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JohnA
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PostPosted: Mon Jun 30, 2008 4:59 am    Post subject: Reply with quote

Exactly Alan! Just think of the attenuator as a master volume that works! With the amp set so it breaks up when you dig-in, you can set the overall level with the attenuator to whatever is appropriate for the venue then just back off the guitar volume to clean it up, or stand on the overdrive to really make it sing!
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stratman323
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PostPosted: Mon Jun 30, 2008 5:06 am    Post subject: Reply with quote

Sounds perfect - but nothing's perfect, so where's the catch? Sorry to sound so suspicious, but if these things are so good, why don't all manufacturers fit them as standard?
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JohnA
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PostPosted: Mon Jun 30, 2008 5:12 am    Post subject: Reply with quote

Simply money! a good attenuator is a few hundred quid, add that to the price of an amp and it makes a big difference. It would also be a bit daft, as you can share one attenuator between many amps (not at the same time) so you don't need one in every amp.

A master volume will get you close to the sound you want in an amp that was designed with a MV, fitting one to a non-MV amp would probably be rubbish. If the sweet-spot of the amp means you need to turn it up louder than required for your venue (or bedroom) then the only answer is attenuation or powerscaling.
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leadguitar_323
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PostPosted: Mon Jun 30, 2008 5:31 am    Post subject: Reply with quote

Thats where power scaling comes in Mike. Attenuators do the job but they are by no means ideal, the main thing being that they lessen the life of the tubes, and they don't keep the tone consistent, they are a compromise. Power scaling is relatively new and will be the way of the future, its already appearing on production model amps now. Check out the "Suhr Badger", its a brilliant little amp.

Mick
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stratman323
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PostPosted: Mon Jun 30, 2008 5:31 am    Post subject: Reply with quote

Thanks guys! I knew I'd get some good advice on here.

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stratman323
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PostPosted: Mon Jun 30, 2008 5:33 am    Post subject: Reply with quote

Mick - how do you mean they don't keep the tone consistent?

Power scaling is a new one on me, but if it's something that has to be built in, I guess I wouldn't get it on the retro sort of amps I like.
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JohnA
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PostPosted: Mon Jun 30, 2008 5:59 am    Post subject: Reply with quote

Powerscaling lowers the voltage the tubes run at so is definetley better as far as tube life goes. The disadvantage is that you need to have it installed in your amp by a competent tech and you can't move it between amps.

Soundwise, Powerscaling is supposed to retain the sound of your amp at lower volumes better than an attenuator, but that really depends on which attenuator you use. The THD Hot-plate definetely adds a 'fizz' that shouldn't be there, but the Marshall IMO sounds great. There is a really good comparison of Powerscaling, the THD and the Msrshall at the bottom of this page:

http://www.bruceclement.com/music/psk.htm
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stratman323
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PostPosted: Mon Jun 30, 2008 6:09 am    Post subject: Reply with quote

Far too complicated for me! My head's spinning.
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JohnA
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PostPosted: Mon Jun 30, 2008 6:14 am    Post subject: Reply with quote

stratman323 wrote:
Far too complicated for me! My head's spinning.


Both powerscaling and an attenuator provide a knob to make your amp sound better!
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leadguitar_323
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PostPosted: Mon Jun 30, 2008 6:24 am    Post subject: Reply with quote

Is that like the "knob" that bought your Fernandes..?

Mick
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JohnA
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PostPosted: Mon Jun 30, 2008 6:37 am    Post subject: Reply with quote

leadguitar_323 wrote:
Is that like the "knob" that bought your Fernandes..?

Mick


No he's more like the knob on a early MV Marshall, 'useless and should be removed!!'
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leadguitar_323
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PostPosted: Mon Jun 30, 2008 6:52 am    Post subject: Reply with quote



Mick
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stratman323
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PostPosted: Mon Jun 30, 2008 8:46 am    Post subject: Reply with quote

JohnA wrote:
Both powerscaling and an attenuator provide a knob to make your amp sound better!


I thought I was the knob who is supposed to make my amp sound better?
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