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 Post subject: vibroking cab with princeton reverb?
PostPosted: Mon Dec 07, 2009 8:05 pm 
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hey guys I am confused about using my princeton reverb with different cabs, and I am not sure what the manuel is telling me about what ohms to use it with.

I am trying to get A Ryan Adams tone, and he using a vibroking cab, with his princeton speaker still connected. Is this something I can do?


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PostPosted: Fri Dec 11, 2009 6:59 pm 
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Yeah neat idea, but without an impedance matching device, the load would be 2ohms combined(4X8ohm speakers). That's too low for a Princeton. You are talking about using a 3X10 Vibro cab, right? Art

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PostPosted: Sat Dec 12, 2009 8:19 am 
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aclempoppi wrote:
Yeah neat idea, but without an impedance matching device, the load would be 2ohms combined(4X8ohm speakers). That's too low for a Princeton. You are talking about using a 3X10 Vibro cab, right? Art


The Vibro King cab is actually a 2 12 loaded with Celestion Vintage 30s rated at 4 ohms. The Vibro King amp is a 3 10 configuration. Seems like an odd partnership but the amp and the cab together sound unbelievable.

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PostPosted: Sun Dec 13, 2009 8:02 am 
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Thanks for the info bro....... :D


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PostPosted: Sun Dec 13, 2009 7:20 pm 
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The Princeton and Princeton reverb want to see an 8 ohm external cabinet to match up to the 8 ohm internal speaker. I have a closed back 1x12 that I pair with my Princeton Reverb and it's a great combo.

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PostPosted: Sun Dec 13, 2009 8:22 pm 
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Yeah, wasn't sure about the speaker array Hithere was intending to use. But the manual specifies a 8ohm load only, regardless of the combination of speakers('65 Princeton Reverb Reissue). I don't think I would test this amps ability for mismatch. The early amps would probably be able to handle a 4ohm load, without too much trouble. But as a steady diet, I'd set up a 8ohm load, using whatever outboard gear that it would take. Art

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PostPosted: Sun Dec 20, 2009 8:16 pm 
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nedorama wrote:
The Princeton and Princeton reverb want to see an 8 ohm external cabinet to match up to the 8 ohm internal speaker. I have a closed back 1x12 that I pair with my Princeton Reverb and it's a great combo.


I have the same question and am unclear about what the manual is telling me. Here's what the manual says:
N. EXTERNAL SPEAKER—Plug-in connection for an external
speaker. This jack is wired in parallel with the INTERNAL
SPEAKER JACK {M} and affects the speaker impedance load.
Use 8Ω minimum total. To use the external speaker output, first
disconnect the internal speaker. Then connect a 16Ω speaker
load (minimum) to the internal speaker jack and another 16Ω
speaker load (minimum) the external speaker jack.

The stock speaker is 8 ohm. It suggests to me that you can't use an external cabinet with the internal 8 ohm speaker connected, but rather would need to connect two 16 ohm speakers, one to the internal jack and one to the external jack - is that correct?


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PostPosted: Sun Dec 20, 2009 8:43 pm 
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That doesn't sound right at all for a Princeton, at least for an older one. I can run the 8 ohm internal with an external 8 ohm cab.

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PostPosted: Sun Dec 20, 2009 10:59 pm 
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Yeah, that's what I was getting at in my second post Ned. Hithere didn't specify the vintage of his Princeton. But since he said the manual was confusing, I took a look at the reissue's manual. And like Fowler says, it is adamant about an 8ohm load, regardless of the speaker array. Yeah Fowler, you are absolutely right, kind of inconvienent. If indeed we are talking about the reissue amp, couldn't these folks use an outboard impedance matcher and leave the 8ohm internal speaker alone and add whatever speaker cab suits them? Art

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