508mm ( 20" ) wide
18.5 Kg (42lb)
3012LF
9mm (3/8") Italian Poplar on all panels except Woofer panel
3 x 1/8" ply bracing internal except for moth opening ( 2 braces )
Duratex finish.
Hand-hold on bottom plate and at back of top/top of back.
Here they are

Sound test - the desk;
Mackie DL1608 desk Oh Yeah! managed with iPad and sound source a recording on iPhone


Amp: Crown xTi 2002, high paseed 45 Hz, crossover to DR250s 100 Hz
Here's the set up. My old T39s are there as well for comparison

We also ran my friend's very expensive German KS speaker set which you can see in the picture.
We ran these outside at insane volumes - just to prove we could do that, can you spot the nearest neighbour?



Result:
The KS system was loud with loads of bass ( you'd expect that for $13,000 !!

The T39 with DR250s.
Took a while to eq properly but once done;
LOUD, but clean and articulate, no-boom, no rattle, no panel drumming in the subs. HEAPs of headroom even at almost unbearable volume 80 feet away ( iPad level showed amp just on 0.dB gain !! ). Bass was so clean you could listen to it all day. It was so clear that from the recordings we played, at 80' away, I could tell what bass the artist was using ( Mostly P Bass, Jazz and one recording with EB-MM-SR )
Then we V plated the subs - WOW - what a difference that made to the bass quality - it sort of made it more smoother all-round.

The bucket on top was to weigh the V plate down as it had no screw attachments.
The super lite construction stood up well and posed absolutely no problems whatsoever.
Conclusion; If you want a super lite set of subs for your band that will do both indoors and outdoors, these are the ticket. There's more than enough grunt in these and if you have the room, do 4 as the DR250s still run away from just two if you let them do that.
One of the scariest gambles build wise I have done BUT certainly the most gratifying result at sound check time.
Thanks to my good friend Ivan whose venue we used.