[mclsound]

I just finished a dual Volt(3143)12" cabinet with a 1" MDF inside and 1/2" baltic birch outside.Internal dimensions are 11.5wX22.5dX39h with a front firing slot port measuring 11.5wX18.3dX4h for a f3 of 32hz.I find the bottem end to be quite light sounding.I will try and upload the crossovers in my gallery.Could my cabinet be to narrow?

[chlorofille]

Hi mclsound,

The narrow cabinets won't be a problem as the drivers are only playing bass.

I believe your cabinets are too large. The drivers have a fairly high Fs and don't require such a huge cabinet. For optimal results use a 100 Litre internal volume for both drivers. You'll also get a better transient response as well as improved power handling in the 40-50Hz range.

Best of luck,
Chloro

Regards,
Chloro

[mclsound]

a single 3143 requires 85L for 32hz

[S Clark]

Harris Technology Bass Box Pro program recommends tuning the box to 36Hz and a volume of 77L- for two woofers.  According to my program, it looks like your box is about double what is optimum.

[mclsound]

UPDATE
well it looks like one of my factory built(waited 6wks) woofers had inverted posts(battery check) causing cancellation and now hooked up to the Krell KSA 250 in a 4ohm load sounds the best i have ever hear for bass control.This is a amp built in the late 80's and early 90's....wow!!
I believe the cabinets are functioning fine now.
thanks

[Sonny]

UPDATE
well it looks like one of my factory built(waited 6wks) woofers had inverted posts(battery check) causing cancellation and now hooked up to the Krell KSA 250 in a 4ohm load sounds the best i have ever hear for bass control.This is a amp built in the late 80's and early 90's....wow!!
I believe the cabinets are functioning fine now.
thanks

This happened to me once, but on the amp side.  I went from stereo mono amps for mono for bi-amping.  When I first hooked it up, i was expecting more bass, instead I was getting less... It ended up that one of the set of amps were reversed, +/- instead of -/+...what a difference it makes!

Glad you solved the situation and are enjoying music!
T