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Data-Bass
Data Bass just published a new review of a sub that managed to basically crush everything on the entire leaderboard. Including the DTS-10 and the Gjallarhorn.
It's got four 18s in it and it's 40 cubic feet (external) so I would hope it would crush everything else. It does seem to be drawing some attention but given the cost and size it doesn't appear to be anything extraordinary. LTD02 seems to be guessing it's just a ported box with a short front horn or maybe a slot (like PPSL maybe) to boost the high frequencies, which seems likely given the size, amount of drivers and response curve.
So, what exactly is this ZOD Audio M.A.U.L? - AVS Forum | Home Theater Discussions And Reviews
ZOD Audio M.A.U.L. Test Results and Discussion - Bass Gear - Data-Bass Forums
Why is this discussion in mulit-way and not the subwoofer forum?
So, what exactly is this ZOD Audio M.A.U.L? - AVS Forum | Home Theater Discussions And Reviews
ZOD Audio M.A.U.L. Test Results and Discussion - Bass Gear - Data-Bass Forums
Why is this discussion in mulit-way and not the subwoofer forum?
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Cash can stretch the rules as far as they can go. Take 8 of the highest excursion 18s you can find, stick them in an 80 cubic foot box (slot loaded to boost the highs on the high excursion high Le drivers) and you can have a brand new new sheriff in town.
Just to be clear, this doesn't look like a bad design, but the reason it crushes the competition is due to the massive displacement capabilities of the 4 drivers.
Just to be clear, this doesn't look like a bad design, but the reason it crushes the competition is due to the massive displacement capabilities of the 4 drivers.
Yeah, Bunch of crooks is allways stronger than one sheriff.
He needs bigger amp, K20 isn´t powerful enough
He needs bigger amp, K20 isn´t powerful enough
Here's the response from data-bass
I can't get anything close to the measured response unless I go isobaric. To put this in perspective, The Danley BC-218 is tuned nearly an octave higher and it's *fifty percent bigger. I can't see any way they've squeezed four eighteens into a 40cf 15hz horn unless it's isobaric.
Here's the best model I could come up with.
ah yes, a practical, affordable and WAF solution to the problem of not being able to undermine the structural integrity of your home
The measured frequency response and impedance looks nothing at all like a horn. It looks like a ported box with a single slot loaded resonance higher up in frequency, kind of like PPSL. I'm sure we'll know soon enough, details should be coming along soon. Maybe the port or the slot is horn shaped.
I don't think anyone knows yet, but we do know he liked the Rockford. He's also been playing with IPALs lately, but I think he's selling them so it's probably not those.
An externally hosted image should be here but it was not working when we last tested it.
From looking at it, it seems like a pair of the Aurasound eighteens could give the Fosgate a run for it's money.
This is an expensive proposition, but a pair of the Auras are still $900 cheaper than a single Fosgate.
Here's how an isobaric pair of the Aurasounds compares to one of the Fosgates:
Isobaric Aurasound NS18s vs Rockford Fosgate TS31-19
Price : $1580 vs $2500
FS : 20Hz vs 27Hz
qts : 0.47 vs 0.32
qes : 0.5 vs 0.38
qms : 7.7 vs 1.93
re : 1.55 vs 0.8 (AuraSound isobaric pair in parallel)
vas : 161 vs 104.9
xmax : 25mm vs 34mm
weight : 102lbs vs ???
RMS power handling : 1600 watts vs 3000 watts
SD : 1164 vs 1472
displacement : 2.9 liters vs 5.0 liters
It's rockford, my model just has the wrong label
As insane as this sounds, the $2500 Rockford Fosgate seems to be a good buy for the money(!!!) I'm not aware of another woofer that offers five(!) liters of displacement.
im going off topic now again.
for 20k i would go 8x BMS 862 and 2x 4channels DSP amp (plm10000q)
100l sealed around the room delayed/dsp`d
even 6 random speakers gives nice response/kick dsp´d
for 20k i would go 8x BMS 862 and 2x 4channels DSP amp (plm10000q)
100l sealed around the room delayed/dsp`d
even 6 random speakers gives nice response/kick dsp´d
Not to diminish the achievement, but this looks to be purely a demonstration of brute force and a budget enough to buy a small car. I'm sure it's still an insane piece of equipment.
With a tuning that low I'm wondering what sort of reasonable applications it would have. Having 15hz response like that might make sense in a large IMAX theater haha.
In a way it does remind me a bit of the lunacy of the JTR Orbit Shifter if it were taken up to 11 and then quadrupled.
With a tuning that low I'm wondering what sort of reasonable applications it would have. Having 15hz response like that might make sense in a large IMAX theater haha.
In a way it does remind me a bit of the lunacy of the JTR Orbit Shifter if it were taken up to 11 and then quadrupled.
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I can see this being used for installs in some speciality nightclubs. A few of these would give a lot of power lower down than most people have experienced from speakers.
Add in some DJs that bother to use all of the low end, and off you go.
Chris
Add in some DJs that bother to use all of the low end, and off you go.
Chris
The Fosgate is an interesting driver. When I first saw it, I thought it was silly, especially the price.
But if you crunch the numbers on it, it is no joke, it appears to offer more output than a pair of 18NLW9600s or a pair of AuraSound 18s. (Obviously, the AuraSound is an older design, but still a benchmark.)
Someone with more amplifier knowledge should chime in here, but I'm getting the impression that we're seeing a "sea change" here, as prosound builders are starting to go with drivers with really REALLY ridiculous power ratings, insanely low VAS ratings, and very very big price tags. For instance, the VAS on the Fosgate woofer is under FOUR cubic feet*. That's remarkable for an eighteen, and I'll bet it was impossible to get it that low with a ferrite motor. This is cutting edge design.
The manufacturers are starting to figure out how to get the output of four eighteens from a single woofer.
The B&C iPAL is an obvious example, but the Fosgate seems to be in the same category as well. I've never seen one of the Fosgates "in the wild." I go to plenty of car audio shows, and Sundown rules that scene. In fact I haven't seen *anything* from Fosgate lately, so maybe they're making a comeback.
* http://www.frankiesautoelectrics.co...ower-19-inch-t3-svc-subwoofer-1ohm-6000-watt/
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Hey guys. On my phone so I'll be brief. Figured I'd clarify a few things.
The cost to me is roughly 30% of what is listed. That's just a fudged suggested retail price if it were a real product for sale by a mfger trying to make money. Yes it's still expensive no doubt about it.
It is designed to fit a very specific set of limitations and criteria that I had. It's a custom work for me by me. That being the case it has some decisions made that wont make sense to a lot of people.
Putting it in a home is something I keep seeing mentioned. They wont be in mine I know that. Now an install in a BIG space like an Imax theater? Now we're closer to the right track of what the intended app is. WAF or portability are not on the menu. These likely won't move for the next 5 to 10 years.
40 cubic foot external seems huge but it isn't as much space as it seems when that's a hard limit and you are going for 15Hz extension. Especially once you are dealing with designing the internals of the cab and are no longer just doing sims in HR.
The cost to me is roughly 30% of what is listed. That's just a fudged suggested retail price if it were a real product for sale by a mfger trying to make money. Yes it's still expensive no doubt about it.
It is designed to fit a very specific set of limitations and criteria that I had. It's a custom work for me by me. That being the case it has some decisions made that wont make sense to a lot of people.
Putting it in a home is something I keep seeing mentioned. They wont be in mine I know that. Now an install in a BIG space like an Imax theater? Now we're closer to the right track of what the intended app is. WAF or portability are not on the menu. These likely won't move for the next 5 to 10 years.
40 cubic foot external seems huge but it isn't as much space as it seems when that's a hard limit and you are going for 15Hz extension. Especially once you are dealing with designing the internals of the cab and are no longer just doing sims in HR.
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For what it is, 40 cubic feet is tiny, only about 1/3 larger than a single labhorn. Personally I'd be shooting closer to the 125 cubic foot range for 4 of these drivers (but I like horns).
I'm interested to see exactly what layout was chosen. A pic of the front of the cab would make it very clear. I'm imagining something like a PPSL (maybe without push pull), in other words a pretty simple 6th order bandpass.
I'm interested to see exactly what layout was chosen. A pic of the front of the cab would make it very clear. I'm imagining something like a PPSL (maybe without push pull), in other words a pretty simple 6th order bandpass.
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the internals will be interesting, but in my head i have a cubo/wicked one meets Thawach with a little lunacy thrown in for good measure.
should be fun to watch it unfold, impressive work Ricci.
should be fun to watch it unfold, impressive work Ricci.
Josh Ricci has done it 🙂 again & i'm interested to discover more about it, when he decides to 😉
Can anyone please provide an Actual PDF with Complete T/S specs link to the driver used in this design ? The ROCKFORD FOSGATE T3S1-19 POWER 19 INCH T3 SVC SUBWOOFER 1OHM 6000 WATT - Frankies Auto Electrics link doesn't show BL for eg !
With the limted specs shown i get unreliable computed data as to the other specs. This leads me to believe that, one or more of the specs are incorret !
@ Josh Ricci
Did you measure the T/S & if so how much did they differ from the published ?
Can anyone please provide an Actual PDF with Complete T/S specs link to the driver used in this design ? The ROCKFORD FOSGATE T3S1-19 POWER 19 INCH T3 SVC SUBWOOFER 1OHM 6000 WATT - Frankies Auto Electrics link doesn't show BL for eg !
With the limted specs shown i get unreliable computed data as to the other specs. This leads me to believe that, one or more of the specs are incorret !
@ Josh Ricci
Did you measure the T/S & if so how much did they differ from the published ?
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