• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

Replacement speaker for - Ampeg B100R?

I am pretty sure that the (original) speaker in my (solid state, USA made) B100R is four Ohms, so if the amp is designed to accept a four Ohm load to put out 100 Watts, yours will operate at less than the full 100 Watt rated output.
 
Yeah,

I'm sensing lesser output but the quality of the 8 ohm is comparable. I wonder why several folks suggested the Eminence Beta, which also is 8 ohms.

Mostly using this as a practice amp but I'll give it a volume try out next time it leaves the house. May need to pick up a good 4ohm of those suggested.

Yes my original was a 4 for sure, but I think I may have damaged the voice coil.

I'm looking for a good way to test it but judging from the sound, I think it's damaged
Thanks for your input.
 
4 ohm 115's that won't break the bank are a little hard to find. And the only one that Eminence makes that would likely be suitable for you is the Legend CA15 4, but it only goes up to 3k and I prefer one that does 4k. The Jensen Mod 15-200 might work, but it has pretty low xmax so I doubt you'll be able to run the B100R crazy loud with it despite its 200w power handling rating. I don't know enough about it, though, so don't go by me.
 
Thanks Jimmy,

In my research I seem to remember you were recommending the Eminence Beta 15 at one point and I looked at it but then saw it was 8 ohm. Wouuld you still recommend. I have that 15 from my now sold B15R, which seems to sound OK. I may just stay with it for a while, since I"m not looking for that much power. Just wonder if the specs on it match well enough.

THanks for the input. I've read many of your posts about Ampegs and respect your knowledge and willingness to help others.
 
Thanks, OldSchool!

You will get more power out of the amp with a 4 ohm speaker, no doubt. Probably won't translate to much extra volume but you will get some more headroom out of it. But if the B-15R speaker is working for you, no sense changing it.

Always thought the Betas and Deltas came in 4 ohm too, but apparently they don't anymore.
 
THanks, I'll stick with the 8 ohm for now and see how it sounds. I"m also curious about what happened to the orginal. I'd only had it a few months and didn't play it loud so I can't figure how it might have gotten damaged. I did run an EQ pedal through it at slightly elevated volume and bass EQ. COuld that have done it?

Any, other than put it back in and play is there a way to test the original? Can a good tech test it? I've not tried the battery testing and not sure what that would show me.
s
 
Yeah, you can gently push around the dustcap and feel for rubbing in the voice coil, or you can hook it up to a frequency sweeper and listen for signs of distress...that's what my local speaker tech does. The battery test is usually to test to make sure you have it hooked up properly and in phase with other speakers, so I doubt there's much it can tell you.

BTW, you can always have the original reconed if it's broken.

And yes, it's possible that cranking the low end and boosting it with an EQ could blow it, but it would still have to be out of the range of its capabilities, and if you don't play too loud otherwise, seems a little unlikely.
 
Time to revive this... I am looking for a B100R right now as an amp for practice, gigging and recording with my not too loud Garage/stoner rock kinda band.

The Geetard Plays a 1x12 Orange Rocker Combo (30w) and doesn't crak it, the Drummer is not too loud either.

Anybody stuck an 8 ohm (beta or sth) in the b100r and added a jack for an external 8 ohm cab? I have a b-Series 115 I could use as an Extension (loaded with a 3015, that is)
 
  • Like
Reactions: samniner