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 Post subject: 10" or 12" speaker for Princeton Reverb?
PostPosted: Tue May 29, 2012 1:20 pm 
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I would assume a 12" speaker is better than a 10" for a Princeton Reverb amp but I read some people saying 10" is the right choice for the Princeton. I'd expect a more open sound with better bottom end with a 12" speaker. Any downside to going with 12"?


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 Post subject: Re: 10" or 12" speaker for Princeton Reverb?
PostPosted: Tue May 29, 2012 4:08 pm 
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TC5A wrote:
Any downside to going with 12"?


No -- the 12-inch speaker permits more options as far as brand.

The only downside is, if the amp is a historically-vintage piece you really don't want be hacking something like that up. Better to build an all-new baffle board and save the original parts so the amp can be put back to stock trim if/when you decide to sell.

HTH

Arjay

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 Post subject: Re: 10" or 12" speaker for Princeton Reverb?
PostPosted: Tue May 29, 2012 4:54 pm 
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Thanks Arjay, this is for a new build Princeton clone I'm thinking of ordering, so no issue regarding preserving a vintage original.

I'm currently trying to decide between a Weber 10F150T or 12F150T.


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 Post subject: Re: 10" or 12" speaker for Princeton Reverb?
PostPosted: Tue May 29, 2012 6:14 pm 
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The 12-inch Weber will provide a thicker, richer, meatier tone. It's also moving more air per watt of input so the amp will likely sound a little louder than with a ten with an equivalent SPL spec.

Arjay

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 Post subject: Re: 10" or 12" speaker for Princeton Reverb?
PostPosted: Wed May 30, 2012 1:26 pm 
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I've known and heard of many folks that went from a 1x10 to a 1x12 speaker setup. I have know only one person that took the reverse route.

Multi-speaker setups are a different game altogether.

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 Post subject: Re: 10" or 12" speaker for Princeton Reverb?
PostPosted: Wed May 30, 2012 1:32 pm 
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I've built a number 2 x 10 DRRI conversions for my clients. It works well and changes the amp's sonic character to more of a Vibrolux Reverb vibe. All it takes is a pair of 16-ohm tens and a new baffle board (I even re-cycle the original grill cloth to hold costs down).

Arjay

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 Post subject: Re: 10" or 12" speaker for Princeton Reverb?
PostPosted: Wed May 30, 2012 7:07 pm 
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I read an interesting comment on the Weber forum where someone mentioned replacing the 1/2 inch plywood speaker baffle with a 3/4 inch MDF baffle in a Princeton results in a dramatic improvement in the bottom end. Anyone else try that experiment?


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 Post subject: Re: 10" or 12" speaker for Princeton Reverb?
PostPosted: Wed May 30, 2012 11:53 pm 
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TC5A wrote:
I read an interesting comment on the Weber forum where someone mentioned replacing the 1/2 inch plywood speaker baffle with a 3/4 inch MDF baffle in a Princeton results in a dramatic improvement in the bottom end. Anyone else try that experiment?

Thick MDF would have a different resonance frequency. Intuitively it would seem that the increased stiffness would enhance 'bottom end' but I doubt that it would be a dramatic improvement. Definitely would make the amp heavier. :(

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 Post subject: Re: 10" or 12" speaker for Princeton Reverb?
PostPosted: Thu May 31, 2012 3:50 am 
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From at least 1971 onward, the Princetons and Princeton Reverbs have MDF baffles, dadoed in to the frame, making replacement challenging compared to previous versions. Not sure sonically it's worth replacing a ply baffle, but if it's non-invasive, worth a try.

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