Klipsch CP6-T issue

[H2operator]

I recently bought a used pair of Klipsch CP6-T's for my deck to replace a pair of CP 4's that I liked a lot but wanted more bass! The issue is that they seem to resonate and the bass is more muddled than I expected. These are the commercial version with a multi tap switch that are set in this case to 8 ohlm bypass.
If anyone has any insights or advise please comment!
Thanks, Lance

 

[toxcrusadr]

I had to look this one up as I wasn't familiar with the CP series.
http://assets.klipsch.com/product-specsheets/CP-6T-Spec-Sheet.pdf

So this is a 70V speaker but it has an 8-ohm setting so you can use it with 8 ohm amps. OK.

With a -3db point at 83 Hz they are not doing very deep bass. The enclosure is ported so it may be tuned so there is a bit of a hump at the bottom. 80-100 Hz is prime territory for 'boomy' if the speaker isn't a well balanced design.

But it could have something to do with placement. How do you have them mounted and positioned? Same place as your CP4's? Are those CP-4T so the same line or a different speaker altogether?

 

[H2operator]

I had to look this one up as I wasn't familiar with the CP series.
http://assets.klipsch.com/product-specsheets/CP-6T-Spec-Sheet.pdf

So this is a 70V speaker but it has an 8-ohm setting so you can use it with 8 ohm amps. OK.

With a -3db point at 83 Hz they are not doing very deep bass. The enclosure is ported so it may be tuned so there is a bit of a hump at the bottom. 80-100 Hz is prime territory for 'boomy' if the speaker isn't a well balanced design.

But it could have something to do with placement. How do you have them mounted and positioned? Same place as your CP4's? Are those CP-4T so the same line or a different speaker altogether?

Yes they are in the same location as the CP-4s which are standard 8 ohm speakers. They are mounted vertically under the roof eves. The only change I've made to the system otherwise is that I installed a Niles speaker switch with volume controls.

 

[toxcrusadr]

Sounds like they are just a different sound from the 4's. You might have to use a little tone control to tame the boom. Seems I heard somewhere you can try plugging the port to change the tuning. Since there are two, you might try lightly stuffing one with a rolled up rag or a piece of foam and see what happens.

 

[H2operator]

Sounds like they are just a different sound from the 4's. You might have to use a little tone control to tame the boom. Seems I heard somewhere you can try plugging the port to change the tuning. Since there are two, you might try lightly stuffing one with a rolled up rag or a piece of foam and see what happens.

The sound is very much like a speaker that has too large a bass port that allows the woofer to move excessively. I've considered your suggestion of closing off the ports to see what happens. I'm surprised that there is any issue at all with these figuring that they are tried and proven! Could be that they were abused by the former owner . Maybe it's me, but that's always a possibility!
Thanks for the suggestions, I'll let you know how it turns out.

 

[toxcrusadr]

If they were buzzing or drivers not playing I would suspect damage, but it sounds like they are playing fine and you don't like the sound. There's (usually) nothing in the crossover on a 2-way speaker than can change the response curve in the bass region. Harsh upper end, I would suspect a tweeter cap out of spec. You can always open one up and look for damage, burnt components or board traces, etc. Can't hurt.