|   running 2 subs at same time ? | s555
Jul 29, 2002 9:45 PM | | can i run 2 subs at same time that do not have phase control i was told i can if i keep them close together i would like two run 2 energy encores 8 inch woofer for a tighter bass im running a ps 1000 paradigm for now sounds real good with movies but slow with music just wander if any one has done something like this before |
| re: running 2 subs at same time ? | Express
Jul 30, 2002 5:31 AM | | I suggest stacking them or run them tightly side by side. |
| re: running 2 subs at same time ? | 9ball
Jul 30, 2002 7:43 AM | | I wouldn't be too worried about keeping them close together. As long as they're close to the same distance from your listening position. I've heard dual subs before with one sub up front and the other on the side wall close to the opposite corner and it created a nice effect with movies. Helped with the lack of direction from the bass. For music however that might not be the best setup. 8 inch woofers might be too directional and draw too much attention to their location. You could try them in a stereo-like setup with them both up front at two corners. |
| re: running 2 subs at same time ? | CHRIS8
Jul 30, 2002 2:25 PM | | "i would like two run 2 energy encores 8 inch woofer for a tighter bass "
Smaller woofers don't inherintely have 'tighter' bass. This is sillyness, which i once believed too at one point btw. Tightness, as you call it is dependant on the tuning alignment, your room, and frequency response.
The 'tighter' sound is probably a different alignment and/or the result of room modes being excited by the lower frequency response of the larger diameter subwoofer.
Before purchasing new subwoofers, try adding a 1-3 inches to the port. PVC plumbing pipe, with a double female instert and some plumber's putty will do. By lengtheing the port you are 'misaligning' the original tunig, but in doing so you will smooth the rollof curve of the low end cutoff, and as a result less minimum phase shift in the total average bandwidth and better transient response. IF it is not practical to lengthen the port, add much more stuffing to the inside of the sub, this will cause a poorer coupling with the vent, having a somewhat similar effect as lengthening the port, but with slightly less low end extension and evern better minimum phase response.
Also, adding bass traps to the room and a paramteric eq is very beneficial...but these take more effort/money than the very cheap possible solutions above. However, you will still benefit by adding traps and a paramteric eq to the sub channel in almost any case.
-Chris |
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