Super Reverb Reissue -- a 45-watt Princeton?

Churchjack

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And, the thread title says it all. I'm hooked on my 6 month old SW tweed Princeton Reverb Reissue, and I want MORE. I wanna get that sound only louder. Is a Super the solution? Would running 2x12" speakers make it louder? I'm just ruminating at this point, but would welcome all suggestions.

What a great amp. But so tiny. :)
 

Torren61

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You COULD buy a Fryette Power Station and re-amp the Princeton Reverb. Oh yeah, you’ll need a bigger cab, too. I have one and I boost my tweed Champ. I can boost it to 50 watts.
 

Phrygian77

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A mic.

The problem with adding a cabinet is the impedance. The total needs to be 8 ohms. That said, 15 watts and two 100dB speakers should be more than enough.

I've never needed more than my 1x12 45 watt combo. I briefly had a 1967 Super Reverb that I restored and it was too loud, even in our 6 piece group.
 

fretWalkr

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I've always played Super Reverbs, I've had 4 over the years. I love having the middle control and the sound of the 4 10s. Since guitar lives in the midrange I prefer amps with a mid control. The DRs have the middle fixed around 4, which is a nice sound. But I like the variety of sounds a mid control gives you.

With the built in attenuator, the new SR RI ought to be pretty amazing. The sweet spot for me is with the vol on 7.5. With the 1/2 watt attenuation I could do that at pretty low volume. Tempting.
 

nojazzhere

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And, the thread title says it all. I'm hooked on my 6 month old SW tweed Princeton Reverb Reissue, and I want MORE. I wanna get that sound only louder. Is a Super the solution? Would running 2x12" speakers make it louder? I'm just ruminating at this point, but would welcome all suggestions.

What a great amp. But so tiny. :)
Read the story of an early experience of Randall Smith, guy who started Mesa Boogie. I use to fantasize about owning Barry Melton's Princeton Reverb.

"Around 1969 we wanted to play a prank on Barry Melton of Country Joe and the Fish. So I took his little Fender Princeton practice amp which, stock, puts out about twelve watts into a ten-inch speaker. I cut up the chassis to fit big transformers and entirely rebuilt it using the famous 4x10 Tweed Bassman circuit. After careful measurement, I cut out the speaker board and squeaked in a twelve-inch JBL D-120, the hot speaker back then. When I finished building it, I took it out to the front of the store to get a good play test and who happened to be hanging out right then? Carlos Santana."......from Randall's website.
 

Dacious

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The Princeton and Super Reverb are somewhat similar - but not. The difference in tone is quite significant and due to
1. Preamp
2. Ppwertubes/output section
3. Speakers and cabinet.
At low volumes they can sound similar.

Each has their own charm..despite 10" speakers. At higher volumes they will be a bit different.
 

Chipss36

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Yes you need a super, and a deluxe,
And a baseman, and a vibroverb…and……

all different, all wonderful!

with the deluxe and up the eyelet card is just about the same.
The speakers. The output transformers, the cabinet are much different.

the pr has a much different circuit.
The vibrato is much different, the filter cap arrangement much different.
It has its own tone, every bit as good as the other’s.
 

Drew617

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Depending what component of "that sound" you really like, the answer is either a. Any of the AB763 amps are in the same neighborhood or b. None of them are in the same neighborhood as the Princeton Reverb. The Princeton's preamp section isn't too much different from the others, but it has some unique things going on that contribute to its sound, and which aren't replicated in the bigger Fender BF/SF amps: A cathodyne phase inverter, bias vary tremolo, and relatively wussy transformers. Excepting the tremolo, IMO if you like the Princeton quiet you'll likely get close with any other Fender BF/SF amp. The unique Princeton behaviors show up at 5+ on the volume knob.

You can upgrade the PT, OT, or both, mod one to run 6L6s... the Weber 6A14HP is a 6L6 Princeton Reverb. I built a stock 6A14 that's a bit closer to the real spec, but sort of fortified with the Deluxe PT and OT. That amp sounded closer to a Deluxe Reverb, just with better trem and different overdrive characteristics due to the PI. The upgrades also gave up a good deal of the expected Princeton charm for me - I eventually downgraded to a proper Princeton OT.

Interestingly I think a lot of people go for the OT upgrade when beefing these amps up - I think the PT upgrade does as much or more to unlock "tone," specifically better control of low frequencies. Do that, and you can keep the correct OT installed for easy, characteristic saturation.
 

schmee

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The later Princetons have a particular sound due to their PI circuit. It's different than the Deluxe and larger amps.
I dont know the Tweed Princeton RI though.
I have upgraded the PR to Super transformers and 6L6's, and it's still PR type sound to some extent. Not as clean, more gritty than the AB763, but louder.
 

Churchjack

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Clean is what I’m looking for, really. Hairy edge, I guess, but not full on distortion. I like that spanky low end that it puts out, that compressed sound. The Deluxe does sound similar to me (from YT, anyway). I don’t necessarily need more, I’m just “window shopping”. Thanks for the ideas!
 

Phrygian77

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The DRs have the middle fixed around 4, which is a nice sound. But I like the variety of sounds a mid control gives you.

The majority of the classic Fender circuits have a 6.8k mid resistor, including the Deluxe Reverb. The amps with midrange (the Super Reverb, Twin Reverb, and later the Dual Showman) have a 10k audio taper pot. Audio pots are at about 10% of their value at 50% rotation, so you don't get to 6.8k until up over 7 on the dial. In other words, at most settings, the black/silverface amps with midrange are more mid scooped. There's also not a whole lot of difference between 6.8k and 10k, at least in my opinion.
 

Maguchi

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You COULD buy a Fryette Power Station and re-amp the Princeton Reverb. Oh yeah, you’ll need a bigger cab, too. I have one and I boost my tweed Champ. I can boost it to 50 watts.
Wow, no kidding, 50 watts out of a Champ! I have a tweed Champ Reissue and love the sound of it. May try your method to get more wattage.

20210421_214936.jpg
 

mojavedesert

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A Pro Reverb, with two alnico 25 watt jensens seems to me like a very powerful Princeton. Or a Half -Twin. On 4 it will be like twice the volume of a princeton. The 70's Pro reverb is super undervalued. I bought a 73 for 800 bucks recently in perfect shape with newer, expensive speakers. The speakers would have cost 275 alone new. the were rated 75 watt each, but was so incredably loud, I didn't need it. I put in some lower watt speakers, it's lighter, way more fun to be able to spin the knobs. Also Pro rev. it very similar to a Super Reverb 45 watts. In the size of a Twin amp. Feels like half the weight of a twin with alnico speakers. I can carry mine by the handle with ease. I would buy another.
 

zook

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A Princeton has a Cathodyne phase inverter which uses only one Triode of a 12AX7. The larger Fender amps use a Long-tailed Pair phase inverter which uses two triode on a 12 A_7
 

archetype

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IMO there is no "more" tweed Princeton. Anything you do to embiggen a tweed Princeton moves it out of the Princeton tone zone that you like.

There are boutique single-ended amps that put two 6V6GTs in parallel, or use a 6L6GC, to get more wattage. They may or may not sound the way you want. Also, the difference between 4-5 Watts and 10 Watts is slight.

The next step up in Fender wattage are tweeds that are louder, but are cleaner, or warmer, or darker than a tweed Princeton.

I'm pretty sure you'll just have to learn to enjoy a different tweed circuit.
 

Torren61

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Wow, no kidding, 50 watts out of a Champ! I have a tweed Champ Reissue and love the sound of it. May try your method to get more wattage.

View attachment 879218
No, lol. I take the speaker output of the champ and run it into the Fryette and then out of the Fryette into a cab. The Fryette is rated at 50 watts with two 6L6 tubes. Using the Fryette also allows me to insert effects.
 




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