The prototype had the budget Dayton Audio speakers in it. For warranty purposes, It will come with the vastly upgraded drivers in the regular production model, which can take a beating all day long without breaking a sweat. Those drivers will exceed 3 inches of total excursion and can handle the 4,000 watt amp. The starting price with a 2400 watt amp on that one will be $4200 ( I know it's expensive, but it will beat the pants off of just about everything). $4800 with the 4,000 watt amp.

@@righteousbuilds3576 sounds good and the $4800 is that for only 1 sub or for 2?

Yeah, it doesn't take much travel to create some serious pressure in the room with those things.

This design has been excellent with the 10 and 12 inch high excursion drivers. Those drivers would do just fine.

I'm using Dayton Audio 12 inch reference high excursion drivers. They actually sound really good. They are a budget option, but for a budget speaker, they're pretty impressive.

Agreed

@@righteousbuilds3576 i do both 2 channel music and home theater would u sacrifice mid bass for more deep bass or sacrifice mid bass for more deep bass. And which commercial sub do u think does both dig deep and has good mid bass. I know that would be the perfect sub but don't know if 1 exist unless u can make 1 lol.

Both the the dual 10 inch and the dual 12 inch have 2 active subs. That's one of the reasons why they are capable of such impressive output.

Not sure how long that dual 12 will be in my theater before going to its new home, but that sounds like a fun comparison.

I'll be doing some REW measurements on the 12 inch version. Watch for the next video. I'm just waiting on the amp to be shipped.

You would be correct. Im in the Salt Lake, Utah Area.

52 C.F. after you factor in the port and the drivers. My tuning frequency is 13 hz. They are definitely larger than life. :)

Thank you for the response.

@@righteousbuilds3576what a beautiful looking cabinet. Better than most ‘professional’ designed cabs I’ve seen.

I agree. It's a very musical sub. Thanks for the compliment.

It shows for a couple seconds when the Artist is credited. Max Bhron, Redemption, I think it was.

That's a speaker power sp1-2400.

They'll be featured in future videos. :)

It was just the samsung S-22 mic for that video.

The enclosure volume is 2.8 C.F. Yes, it's ported. It's a 3x16 inch slot port. 33 inches if you don't include where it turns the corner at the bottom and goes past the down firing driver. 53 inches if you include that portion. It digs down past 20 hz with ease though.

I 100% agree.

That's awesome. Thanks for the comment. :)

The engineering behind them is the one that is expensive

Gotta let those baby 10's breathe :)

2 10's works out to be about the same as a 13 inch driver. All of the design elements that went into the enclosure contribute to it's musical abilities and also the ability to dig like you wouldn't believe for 10 inch drivers.

Yes, it is more musical than the 18. Lots of people agree with you.

I know that the sp1-4000 and the sp1-6000 have 2 ohm power ratings posted on their website, and I have the sp1-2400 wired for a 2 ohm load, which it's doing just fine with. But I haven't seen anything about whether they're stable at 1 ohm.

Agreed, there are good copyright free tracks out there. They're just hard to find :).

Yes, I agree. When the dual 12 is done, I'll include the REW measurements. For reference, the dual 10 hit 111 db at 26 hz with the mic about 15 feet away. That's a room gain measurement, but impressive nevertheless.

It's true, the 10 inch does punch harder than the 18 inch until you down near the bottom of the human hearing range :).

@@righteousbuilds3576 yeah 100% the 18inch, would properly win in movies. and when you feel the it, sitting leaned back in the chair;-)

The dual 2 ohm 10 inch drivers are individually wired in series for a 4 ohm load from each of them. They are then wired together in parallel for a two ohm load on the amp.

That would be very much appreciated. You can send them to [email protected]

2 RULES.... NO REPLACEMENT, FOR DISPLACEMENT, AND THE ONE WITH THE MOST CONE AREA WINS, WITH THE SAME AMOUNT OF WATTAGE, GIVEN THAT THE SAME HAVE THE SAME SPECS.... SENSIVITY, ETC ETC....

I still hold a record, 30yrs later. I had two down firing 12in Blue Thunders from 1994. On a JSE 400watt amp, mids and highs off a 50x2 Precision Power Art Series. Clarion head unit. I hit a 152db with less than a total power of 500watts. I spent months with a music teacher, science teacher and MTX designing this set-up so the subs stayed within their maximum frequency range for a ported box, but using the car as a loaded horn. Down firing about 4 inches, I think during testing I used red bricks on their sides. Firing back through about 8in up, then the hatch glass acted like the horn. I nearly destroyed that car, breaking the mirror off the windshield, knocked the steering wheel collum off and so much more. 3 of us sat on the hatch and it bounced us up in the air. From a very literal 1/2 mile away it was shacking windows. I know because I got the police called on me. When you make the box right, you can maximize the subs output. When you use science, you can make that sound amplify by using physics the same as a horned instrument can take raspberries from your lips and fill an entire concert hall loudly. Tens will be cleaner with less mass for control, but the larger subs will be more efficient with lows because of the mass and cone area always helps with efficiency since a single 18 is like 4 10's of usable cone area. So 100watts on each, the 18 will be considerably louder. And the frequency range is dependent on the subs suspension, motor and coil. The enclosure size allows for the tuned frequency response or maximum frequency response, but at a cost or benefits of power handling. To get lows you need a massive box in most cases. Or a 4th order tuned extremely low with a subsonic filter and that ported sub brings up the higher stuff

He explains in the video that it's actually 2 10" woofers?? I don't understand your complaint.

@@MyFatherLoves read the title of the video. There's two tens in the box.

@@MyFatherLoves not a complaint, more of a statement. And it's one 10" in a 4th order and one ported. Also known as 4th and half by some. Regardless, what's more efficient at 100w? If you pay attention to the fs and box expectations to hit that frequency, you'll see, a single 12" is superior to 2 10"s in a 4th and a half. Same box size. Even that 18" is nearly the same box size and also about 6db louder at 1000w, but may not have the tight bass of the 10's. I do like his concept, especially if he opens it up to 12". Even Sundown claims to hit lows, or B2 with an 8". But it probably would take the same size box or even bigger and can do about the same. But also without the power handling either.

It's a ported sub. 3x16. Just like the JTR, the port wraps around the entire inside of the enclosure and used the 3 inch portion on the bottom as a quasi-extension for even lower tuning.

​@@righteousbuilds3576Thanks

I got very similar results from my measurements. With the mic about 15 feet away, I measured 111 db at 26 hz

@@righteousbuilds3576 That's so close it's almost science!

You really need 2 more subs, and then multiple sub optimizaiton! (I have 2 of those subs, and yes, they hit 20hz easy in the right cabinet.)

@@fredygump5578 If I had the room it would be a wall of sound, lol. Really happy with this single cabinet. Placed well in the room it is more than adequate. I have a few more spare subs and the matched passive radiators for some future builds. I am always building new stuff... it's a sickness.

Agreed. Two 12's might come pretty close in performance or beat it. :) Coming soon.

@@righteousbuilds3576is it a push pull setup? does the air pressure increase or stay constant?

@@chokechange They are in phase with each other, so they act as approximately one 13 inch driver.

@@righteousbuilds3576 Does having them perpendicular to each other make a difference or is it functionally equivalent as if they both were on the same baffle face? Still learning on my end.

@@chokechange Before designing this sub, I had seen several demonstrations about how a down firing sub will have greater tactile response than a forward firing sub. This one combines the two to make a reasonably small (take that with a grain of salt, it's still 18x21x27) sub with great tactile response and nice, clean, detailed sound. The 24 inch sub in my living room is a down firing sub and it's an absolute jack hammer. My neighbors often complain when I fire up that monster :).