So I have resources to build anything up to a 40k watt build with supercapacitor and lithium battery combination and having a hard time working out the electricals concerning different back currents from the power source from the amps between the different batteries for a start, but I’ll find help from some sort of electrician for that. Im already planning on finding a box design expert also to help me with air space and ports. What I have a question about concering my concept before I spend money is:
if I build a 6th order bandpass with the outer port on the B pillar wall of a van and build two separate ported enclosures on each side (so 3 drivers, one inside the bandpass).
Here’s the question: if the two ported enclosures on either side are ported into the side walls of the bandpass will it make sense? Or will it negatively affect the tuning of the bandpass? I’m thinking it would result in a kind of 6.5th and result in creating more than 2 peak frequencies from the bandpass. Or maybe it would be better to port the 2 side woofers directly into the cabin?
As you can guess I’ve not found anything researching this theory.
if I build a 6th order bandpass with the outer port on the B pillar wall of a van and build two separate ported enclosures on each side (so 3 drivers, one inside the bandpass).
Here’s the question: if the two ported enclosures on either side are ported into the side walls of the bandpass will it make sense? Or will it negatively affect the tuning of the bandpass? I’m thinking it would result in a kind of 6.5th and result in creating more than 2 peak frequencies from the bandpass. Or maybe it would be better to port the 2 side woofers directly into the cabin?
As you can guess I’ve not found anything researching this theory.
Are you building this for competition?
If so, are many competitors using 6th order?
If not, what's the ultimate goal for this?
If so, are many competitors using 6th order?
If not, what's the ultimate goal for this?
It’s definitely not for competition, I’ll be happy with anything over 150 tbh. It’s just for show, more for music than anything. The plans are to make it a nice clean build with glow in the dark epoxy powder, led’s, prity colours and descent sound, just to attract attention and use in videos to support a company startup.
Im thinking of tuning the band pass low and the two separate enclosures on either side high in stereo, for a nice left and right differentiated sound pressure.
I was just wondering if porting the two enclosures on the sides into the bandpass would help with getting a wider range of peaks for more musicality, but I can’t find any literature or examples on it to say if it’s a good or a bad thing.
Im thinking of tuning the band pass low and the two separate enclosures on either side high in stereo, for a nice left and right differentiated sound pressure.
I was just wondering if porting the two enclosures on the sides into the bandpass would help with getting a wider range of peaks for more musicality, but I can’t find any literature or examples on it to say if it’s a good or a bad thing.
The low frequencies are going to be omnidirectional.
6th order complicates things greatly. Unless you're going for a one-note-wonder, they don't have many advantages over more conventional, ported enclosures.
I'd suggest looking at a lot of the competitors and show trucks on YT to see what they've done. All woofers in a wall with one huge center port or all woofers firing into the center tunnel then that firing forward were popular, at one time.
Others here have gone through this. Let's hope they help. I never followed SPL competition very much.
Decent sound comes from the higher frequency speakers and will be difficult without some trial and error, depending on how loud you want the highs to be.
6th order complicates things greatly. Unless you're going for a one-note-wonder, they don't have many advantages over more conventional, ported enclosures.
I'd suggest looking at a lot of the competitors and show trucks on YT to see what they've done. All woofers in a wall with one huge center port or all woofers firing into the center tunnel then that firing forward were popular, at one time.
Others here have gone through this. Let's hope they help. I never followed SPL competition very much.
Decent sound comes from the higher frequency speakers and will be difficult without some trial and error, depending on how loud you want the highs to be.
Surely with the doors or windows open you’d be able to pick up on the pressure waves coming from one side of a van more than the other if the two enclosures on either side are in stereo, it works with home cinemas?
I don’t want the highs to be too loud I value my hearing too much, I need to have a hearing test every couple years for my job, but I’m willing to spend some money on a decent DSP and ground zero reference amps.
The idea behind the 6th order is to attract attention, as complicated as they may be, I’m willing to put the work into it.
I don’t want the highs to be too loud I value my hearing too much, I need to have a hearing test every couple years for my job, but I’m willing to spend some money on a decent DSP and ground zero reference amps.
The idea behind the 6th order is to attract attention, as complicated as they may be, I’m willing to put the work into it.
The output from the two ports will be nothing but a rush of air/sound. There won't be any left/right separation. Separation is only found in the higher frequencies.
It's VERY unlikely that you will get the tuning on the front/rear chambers right by calculations alone. You'll have to install and then measure the resonate frequencies to see if you got it right. Just slightly off will make a huge difference.
You need to use hearing protection, even without extreme volume on the highs.
Unless you're worried about what people 20ft away are hearing, the sound quality isn't going to be an issue. Like speakers, ears have an 'xmax'. Above a relatively low volume (90dB?), ears lose the ability of hearing without the sound being distorted, especially when being hammered by the low frequencies.
DSP isn't much use at high volumes.
It's VERY unlikely that you will get the tuning on the front/rear chambers right by calculations alone. You'll have to install and then measure the resonate frequencies to see if you got it right. Just slightly off will make a huge difference.
You need to use hearing protection, even without extreme volume on the highs.
Unless you're worried about what people 20ft away are hearing, the sound quality isn't going to be an issue. Like speakers, ears have an 'xmax'. Above a relatively low volume (90dB?), ears lose the ability of hearing without the sound being distorted, especially when being hammered by the low frequencies.
DSP isn't much use at high volumes.
Wow there’s a lot of good info in that ^.
I’ll throw that Idea right out the window then.
Probably better off putting all the drivers in the 6th order then. Thanks for that bit of advice, Ill make sure I test the resonant frequencies before finishing off the front port