Another TH driver...?

[Brian Steele]

I present the Pioneer TSW 1200 PRO.

MSRP is $200, but it can be found for less than half of that.

It will do a clean 40 Hz in approx. 100 l (net) TH. And it's DVC, so you can wire it down to 2 ohms 🙂.

t/s params:
Sd: 531 cm^2
Fs = 40 Hz
Qes = 0.39
Qms = 10.7
Vas = 45.4 l
Xmax = 6mm

 

[Matthew Morgan J]

Looks GREAT to me Brian! I'm surprised you didn't get any responses on this interesting driver ...
Here are some inputs (single cab) and graphs (two tiny cabs in halfspace) for a TH based on the Pioneer TSW 1200PRO .... Looks good for highly portable, affordable but potent PA use solid and flat right down to 40hz .... This is a heck of a lot of motor strength for a 12" driver!
Equivalent BL figures are 25T at 8 ohms (7 ohms DCR) , 18.5T at 4ohms (3.5 ohms DCR) and 12.6T at 2 ohms (1.75T) , thats an incredible value in motor strength for only 99 bucks! =)

 

[m R g S r]

6mm Xmax doesn't seem to be a real sub, but I guess for the price it's not bad.

 

[GM]

Is there a ~$200 driver that does at least ~123 dB from ~35 Hz - up with 700 W in < ~140 L? If not, then maybe a pair of these will at least be good bang/buck.

GM

 

[Djim]

Is there a ~$200 driver that does at least ~123 dB from ~35 Hz - up with 700 W in < ~140 L? If not, then maybe a pair of these will at least be good bang/buck.

Hi GM,

In Europe we have the Thomann The Box 12-280/8-W which costs € 49 😛

 

[GM]

Xmax?

GM

 

[NEO Dan]

Xmax?

GM

Not much 🙁

 

[Brian Steele]

Not much 🙁

It's 6mm.

But then, you can get TWO of these drivers for just over $200 - still less then you'd pay for most drivers from the big names that feature that much total Vd (Sd*Xmax). And each of the drivers is a DVC, which does give some wiring options that you don't get with your standard pro audio driver.

So, the displacement equivalent of a 12" pro audio driver with 12mm Xmax for just over $200, with the option of wiring for 8 (for pro audio) or 1 ohm (great for portable class D applications)? Hmm... 🙂

 

[GM]

Not much 🙁

Thanks! Dumba$$ me, could have just DL'd my 2014 dual driver TH sim [6.1 mm], which shows some serious performance for small, cheap.

GM

 

[djtimmy77]

I am intrigued....

 

[oohms]

I've been running some simulations in hornresp and it seems that a vented enclosure is only 3db less efficient than a TH, at half the box volume (50 vs 100 liters) - and diaphragm displacement seems similar in both

Is it really the 3db we are chasing here or is there something else i'm missing? 😕

 

[GM]

Right, double the power = +3 dB, so where's there's room, the larger TH saves some $$$ since it doesn't need an extra driver, etc., + has a bit of directivity control and other more horn-like performance, so stuck in a wall/floor, corner of a room and especially stacking THs is where the serious gains are over BR.

GM

 

[Crashpc]

If you add the extra driver, it doesn't need more amp power to get the 3db gain. But sure, large THs are cost effective. It's just not "size for SPL" effective in most cases. It seems that more and more people are going for higher power densities than what cheap driver THs can do.