The Fender Princeton Reverb might be the most versatile Fender amp ever made- it can growl like Tweed era Fender or sing sweet cleans like Silverface Fender. Dress the rest of it up in a little spring reverb and thick tremolo and a guitarist has just about all that is necessary. We love when they still have the original speaker but see so many with torn cones, out of shape voice coils, or even improperly replaced speakers. Sometimes a player may even throw in a replacement speaker to protect the original for later. Here are a few good options for replacement speakers.
Budget friendly: new Jensen C10Q8. The Jensen C10Q8 has a 10" cone with ceramic magnet with 8ohms resistance (the proper speaker impedance for stock Princeton Reverbs). This one may even be an upgrade for your PR if it original came with the small magnet Oxford speaker. This is a good lightweight workhorse speaker that will do just about anything as long as you're comfortable working with those treble and bass knobs. Remember that with only treble and bass adjustments, there is an implied "mid" adjustment in the middle. If both your treble and bass knobs are down around three then the implied mid is at about seven or eight.
Many players report a bit longer break in period for this speaker but that it's worth the wait!
Handmade in the USA: Weber 10f150-t. We've been buying Weber speakers and having vintage speakers reconed by the good folks at Weber for years. This speaker is a proper replacement for the desirable maroon/gold Jensen C10NA speaker that came in some Princeton Reverbs 1965-1967. It's got a bit larger magnet and subsequently higher output than the smaller magnet Oxford speakers that are more common. Weber speakers are hand built to order in the USA. Tell 'em we sent you.
Vintage modified: Celestion G10 Greenback. The popular Greenback ceramic speaker found in those Hendrix era Marshall cabs in a 10" version! Installing this speaker is like putting a 12" in your Princeton Reverb but without having to cut the baffle. It may not be even close to vintage correct, but it's an excellent sounding replacement for an older speaker. We have one of these in a 1971 Fender Princeton Reverb now and it screams. It's really loud. Be sure to get the 10"/8 ohm (link above).
