Combine BR and a Horn?

[Cableaddict]

I assume you guys know about the BassBoss company.
Pretty solid reputation with the pros, as far as I can tell.

On his home page, he talks about how he was frustrated with the difficulty in getting low extension in a reasonably-sized horn sub, so he somehow combined a horn and a vented in one cabinet. Or something like that. (He could tell you, but then he'd have to kill you, I guess.

also note: He doesn't do TH, as (I assume) that's a Danley patent.

see:
Horns V. Vented Subwoofers | BASSBOSS Powered Loudspeakers

Does this make any sense at all? (I don't see how everything could align properly.)

If so, has anyone tried it?

If so, could it possibly be done with two separate cabinets, for portability?

 

[weltersys]

1)On his home page, he talks about how he was frustrated with the difficulty in getting low extension in a reasonably-sized horn sub, so he somehow combined a horn and a vented in one cabinet.
2)Does this make any sense at all? (I don't see how everything could align properly.)
3)If so, has anyone tried it?
4)If so, could it possibly be done with two separate cabinets, for portability?

1) As David wrote: "Please understand that I am not suggesting using vented subs in the place of horn-loaded subs, I am suggesting using vented subs to extend and improve the impact of the horn-loaded subs."
2) It has "made sense" since around 1944 when Altec Lansing started making combination bass-reflex/bass horns, and is a bit easier to design with less experimentation now that there have been over 7 decades of designs to build upon.
3) Dozens of commercial companies and thousands of individuals have designed hybrid horn/BR cabinets. David's BassMaxx/BassBoss cabinets have been tuned lower than previous generations to appeal to the EDM niche market. There are a much wider variety of drivers to choose from currently than in the "olden days" of hybrids.
4) Yes, that has been done too. "Some assembly required" does not go over very well in the pro markets where "time is money", so the concept has little traction, but is viable for "small time operators". One can also make the bass reflex portion of the box open up and fit top cabinets inside to increase density.

One can also grossly exceed vehicle's legal axle weight allowance using such densely packed enclosures, which can result in major loss of time (and expense) while a second truck arrives to split the load after being "busted" at a weigh station...

Memories are priceless ;^).

Art

 

[Cableaddict]

1)
4) Yes, that has been done too. "Some assembly required" does not go over very well in the pro markets where "time is money", so the concept has little traction, but is viable for "small time operators". One can also make the bass reflex portion of the box open up and fit top cabinets inside to increase density.

Art

Very interesting.

Since it's not just feasible but an accepted practice, I'm surprised to not see guys on this forum experimenting with this concept. (Unless they are, and I'm somehow not seeing those threads.)



I'm still compiling data & doing a lot of thinking, but when I finally d0 call you for consultation, we will definitely be discussing this as well. (Done on a very small scale.)

Thanks, Art.

 

[weltersys]

Very interesting.

Since it's not just feasible but an accepted practice, I'm surprised to not see guys on this forum experimenting with this concept. (Unless they are, and I'm somehow not seeing those threads.)

I'm still compiling data & doing a lot of thinking, but when I finally d0 call you for consultation, we will definitely be discussing this as well. (Done on a very small scale.)

Thanks, Art.

The concept comes up frequently, this last one mid-week:
Dual 18" hybrid

My own L4 hybrid design from the mid 1980s worked quite well, 130 dB at 40 Hz smoothly rising to 135 dB at 135 dB at 250 Hz, using under 250 watts per driver (36 volts) at only 6.4mm excursion, using 4) EVX150. Had about twenty L4 cabinets out on with the Beasty Boys 1992 "Check Your Head" tour. Can't find a single photo of the PA on line...
Back in those days, most PA woofers were still being run to around 200 Hz to divide up the load between bass and low mid.
The L4 cabinets were originally a straight FLH, the hybrid version cut off 15" of horn and cabinet depth- 33% less truck space, with a huge increase in 40 Hz response due to the BR compared to the 45" depth straight horn.

That said, other than response above 150 Hz, a single Keystone TH can provide equal SPL to the L4 using more power in about 30% less truck space.

The juggle between size, weight, LF response and upper output is an endless pursuit, with no compromise "best" for everyone in the game.

Cheers,
Art