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Hi Jeff, I was just reading some of your responses about Jonny Lang’s Deluxe Reverb amps. I have a 1965 Deluxe Reverb and am trying to figure out if it has a Utah or some other kind of speaker. I also have one of the newer Fender Pro Reverb amps with an effects loop and a silverface Twin Reverb with a volume control. Steve Goldner San Diego Hi Steve, Thanks for your questions. Figuring out which manufacturer’s speaker is in your amp shouldn’t pose a problem unless it’s some aftermarket mystery speaker with no markings.

I was thinking of trying a Celestion Gold 50, but I usually only play in my bedroom, and I don't want to increase the amp’s volume. Both amps produce very loud hum whether or not a guitar is plugged in. Or is there some other possible cause you can point me to? Most factory speakers in Fender amplifiers have what is known as an EIA code that specifies their manufacturer.

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Oddlings – Yet another printing error has surfaced, this time from the FEI (pre-CBS) days.

Besides, no article in the Dating Fender Amps by Serial Number series would be complete without some interesting information, n’est ce pas?

(I’ve also included a few others brands you might encounter as aftermarket installations.) This should help you identify your speaker.

You also mentioned that you’re looking for a speaker option that decreases the overall volume of your amp.

Whether it’s a vintage amp or a recent model such as this Fender Pro Reverb, hum can have several causes.