So, it’s been a minute since I designed an enclosure but I have a project that the wife has placed on me and I would like to draw on this knowledge base. I know this is related to a vehicle application but please hear me out.😁
My wife has a newer Jeep Wrangler that she drives around “topless” and of course the bass reinforcement simply disappears.
I am looking at designing a subwoofer using one of 2 subs I have. A JBL P1022 10” sub or a Sundown Audio SA12v2 D2. I would also like to protect the drivers as much as possible. So to maximize output and protect the driver I am thinking bandpass.
I am not worried about low lows. So <40 hertz I am really not concerned with.
Which type would you recommend? Single reflex or dual reflex.
Also a question regarding dual reflex bandpass port placement. Is there a cancellation effect if both the high tuned and the low tuned are side by side?
Thanks for any help and advice.
My wife has a newer Jeep Wrangler that she drives around “topless” and of course the bass reinforcement simply disappears.
I am looking at designing a subwoofer using one of 2 subs I have. A JBL P1022 10” sub or a Sundown Audio SA12v2 D2. I would also like to protect the drivers as much as possible. So to maximize output and protect the driver I am thinking bandpass.
I am not worried about low lows. So <40 hertz I am really not concerned with.
Which type would you recommend? Single reflex or dual reflex.
Also a question regarding dual reflex bandpass port placement. Is there a cancellation effect if both the high tuned and the low tuned are side by side?
Thanks for any help and advice.
Please do not blast the stereo with the top down.
Other than that, powerful drivers in small bandpass boxes can be difficult, because they need large ports that simply will not fit. To get as much of the bass to her ears, let the ports end near her ears. Sounds dumb but it is the most effective way maximize sound in an outdoor environment.
Other than that, powerful drivers in small bandpass boxes can be difficult, because they need large ports that simply will not fit. To get as much of the bass to her ears, let the ports end near her ears. Sounds dumb but it is the most effective way maximize sound in an outdoor environment.
Try WinISD to compare both variants. Dual reflex (assuming that is 6th order bandpass) is louder but requires a larger box.
That's fine.
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Proximity to the source is your friend in this case, since with the top down you are essentially "outdoors". Like TBTL said, a bandpass sub with an external port ending just behind the driver's headrest or upper seatback would work nicely.
Thanks for the responses!
Sadly, since this vehicle is a 4 door and any enclosure would be mounted in the rear cargo area, having a port/s extend to the rear of the headrest is not possible simply due to aesthetic reasons. There already is a sealed 12” subwoofer in the vehicle that loses all output when the top and doors are gone. I could simply do bass reflex and barrier load them against the seats. But that style offers little protection for the drivers.
As my wife and I are older (I am 50) the vehicle Audio groups/forums don’t tend to offer info other than “build a 6th order and throw 5kw at it yo”. 😁
Sadly, since this vehicle is a 4 door and any enclosure would be mounted in the rear cargo area, having a port/s extend to the rear of the headrest is not possible simply due to aesthetic reasons. There already is a sealed 12” subwoofer in the vehicle that loses all output when the top and doors are gone. I could simply do bass reflex and barrier load them against the seats. But that style offers little protection for the drivers.
As my wife and I are older (I am 50) the vehicle Audio groups/forums don’t tend to offer info other than “build a 6th order and throw 5kw at it yo”. 😁