Princeton reverb - sweet!

[tot_Ou_tard]

I've tried a few rectifier tubes but not much change.
What did make a difference was finding a Sound Enhancer on eBay.
It's a tilt back amp stand that's hollow. It captures the sound going out the back of a combo amp and redirects to the front through what resembles a horn. It made a great improvement. http://www.soundenhancer.com/
I also ordered a upgrade for the output transformer that should arrive soon ~.

Cool, how much did the soundenhancer cost?

[otaypanky***]

I paid $99 for it but shipping was $55 or so. It's light, but buky, so it required a sizable box. The manufacturer has ceased building them as far as I know. They were rather expensive, I think well over $300, maybe as much as $399. They have one listed on eBay now for $149. but it's a model for a larger amp.

From their site

BASICS
The Enhancer™ is a rear loaded horn cabinet for a removable speaker assembly, using the existing speaker already mounted in the combo amplifier. Redirecting the sound emanating from the backside of your open back combo amp, expanding volume and frequency response. It also lifts and tilts the otherwise small combo amp cabinet for better sound projection.

CONCEPT
A speaker is an electro-acoustic transducer that converts electrical audio signals at its input to audible sound waves at its output. These waves are produced from both front and rear sides of the speaker cone as it moves back and forth. The design of the open back cabinet allows as much as half of the speakers sound to escape from the back of the cabinet, thus wasting some of the combo amp’s power and tone.

The Enhancer is engineered to horn-load your combo amps speaker greatly improving efficiency. Cone excursion is greatly reduced for a given amount of sound pressure so distortion is also greatly reduced. The cone becomes easier to accelerate so transient response is improved. There is lower stress on the amplifier, so dynamics and headroom are increased. Cone movement is also damped so resonances are reduced and there is more realism to the sound. The Enhancer also helps to “reclaim” the secondary sound source emanating from the rear side of the open back speaker cabinet and redirect it forward.

With the Enhancer in place both the primary sound from the amp's speaker and the secondary sound from the Enhancer’s mouth are combined. More sound energy is directed forward and the output and tone quality of any combo amp is vastly improved.

HISTORY
Where did the Enhancer come from? A guitar player invented the Enhancer, of course. At first glance the Enhancer appears remarkably simple, but like many good ideas a considerable amount of engineering, research and development have gone into its patented design.

5 Sizes Available to accommodate a wide range of combo amps.

Call for pricing Information and a dealer near you.

Toll Free
866-367-4563
Direct 281-367-4561

[tunghaichuan***]

I had a '65 BF Princeton Reverb with an EV10M speaker. I bought it from a buddy for $250 back in the 80s. The amp came with its own Anvil case. It was louder and cleaner than you'd expect with the EV. I ended up selling it back to my buddy for what I bought it for. He missed it and I was living in an apartment at the time and the amp was too loud.