Check this out
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Check this out So I am building a ported box for my new MTX 7500's (10") to be powered by a MTX Thunder 7801 amp.
After reading other posts and the tutorials, I have decided to make my box as simple as possible to avoid a complex box which will result in poor tuning.
Lets assume we are first talking about a basic square box. The interior of the vehicle is perfectly square about 8' long, 6.5' wide, and 3.5' tall and this space is unobstructed. The speakers are facing up and equi-disant from the centerline of the vehicle.
How do I determine what frequency I want to tune for? MTX lists Fs as 46.54 Hz
MTX recommends a rectangular vented enclosure, why not go with a tubular port?
No lets take the top off of the cubic box and create a glassed enclosure to angle the subs up from horizontal at ~65 degrees and face them forward. Lets also rotate them ~35 degrees toward the centerline of the vehicle.
Assuming I compensate for proper volume due to the different glass top (no longer cubic), what else should I consider? I like the tubular port because it is easier to construct with the new geometry of the subs. The rectangular vented port wouldn't work properly with the new geometries.
Should I can the idea of ported all together and simply go with sealed at MTX's recommended volume? This would make my life easier, but I want reasonably deep bass out of this, and I know porting is how to achieve that.
Thanks.
After reading other posts and the tutorials, I have decided to make my box as simple as possible to avoid a complex box which will result in poor tuning.
Lets assume we are first talking about a basic square box. The interior of the vehicle is perfectly square about 8' long, 6.5' wide, and 3.5' tall and this space is unobstructed. The speakers are facing up and equi-disant from the centerline of the vehicle.
How do I determine what frequency I want to tune for? MTX lists Fs as 46.54 Hz
MTX recommends a rectangular vented enclosure, why not go with a tubular port?
No lets take the top off of the cubic box and create a glassed enclosure to angle the subs up from horizontal at ~65 degrees and face them forward. Lets also rotate them ~35 degrees toward the centerline of the vehicle.
Assuming I compensate for proper volume due to the different glass top (no longer cubic), what else should I consider? I like the tubular port because it is easier to construct with the new geometry of the subs. The rectangular vented port wouldn't work properly with the new geometries.
Should I can the idea of ported all together and simply go with sealed at MTX's recommended volume? This would make my life easier, but I want reasonably deep bass out of this, and I know porting is how to achieve that.
Thanks.
MTX recommends a rectangular vented enclosure, why not go with a tubular port?
How do I determine what frequency I want to tune for? MTX lists Fs as 46.54 Hz
What vehicle are you putting this in?
Originally Posted by shouldaboughttheZ
Rectangle ports have less port noise than a tubular port.
You may want to go download a copy of WinISD Pro and model the woofer. IIRC I modeled some MTX "suggested" ported boxes and they were geared much more tward high SPL than good frequency responce. I didn't do this particular driver so I can't say for certain, but you may want to deviate from their suggestion depending on your particular goals.
