Looking for a second 10" speaker to pair with a vintage Jensen P10R
I’m putting together a 2x10 open-back cabinet for amplified harmonica, driven by a 1949 Masco MA-17.
One of the speakers will be a 1951 Jensen P10R, 8 ohm, reconed with an NOS Donal Kapi cone. I really like this speaker with the Masco — lively, open and vintage sounding.
The cabinet currently has a Weber 10A150 + 10A150-T, both 50W Alnico speakers. They’re good speakers, but with the MA-17 I find the combination too heavy in the low end and a little too dense/closed-in for what I’m after.
I’d like the second speaker to give the P10R a little more support and punch, but I don’t want a huge, round bottom end. I prefer an open sound with plenty of upper mids/treble, articulation and some speaker movement/compression.
I’m considering:
- Jupiter 10SA, 8 ohm / 25W — P10R-inspired, but apparently a little stronger/fuller than an original P10R.
- Weber 10A100T, 8 ohm / 15W — also P10R-inspired, lightweight Alnico, ribbed cone, seems like the brightest/airiest option.
- Weber 10A125, 8 ohm / 20W — more P10Q-like, so potentially more punch and authority, but I’m wondering if it might add more body/low end than I actually want.
The two 8-ohm speakers will be wired in parallel for a 4-ohm load.
Has anyone compared these speakers, especially paired with a vintage P10R or in a low-powered 2x10 amp? Which would you choose if the goal is some bass and punch, but no thick low-end blanket — more openness, bite and vintage response?
I’d especially be interested in experiences with the Jupiter 10SA versus Weber 10A100T.


Hello CityJoe. I spoke to Skip and he basically said that there's no way to tell except to try a whole bunch of speakers. That amp will make any speaker sound good. I've played that model with many speakers, and they all sound okay, but I generally prefer a generic speaker. I played it through a 2x10" cabinet recently with reissue Jensen P10R's and it sounded really good.