Open Baffle, surprising weight

[PDR 1,194]

Well I think I told you guys about the new Open Baffle speaker kit I'm getting......If not, now I have

 

I paid for them back in December, but the designer has just now received all the parts and is ready to ship

 

When I opened the e-mail and read the parts list and weights........I just about fell off my chair!

 

I had no idea that these speakers would end up being this heavy, being open baffle.

 

I should explain that each speak has a powered servo amp for the subs, and two subwoofers per box,

 

but still the weight surprised me. Here is a breakdown:

 

Per Cabinet

 

2 subwoofers...............20 lbs each...........40 lbs

 

Servo amp.............................................17 lbs

 

P Audio driver.........................................20 lbs

 

Misc (x-over,tweet,wire,etc).......................8 lbs

__________

 

Total......................................................85 lbs

 

After I add on the MDF these are going to weigh in at well over 100 lbs !!!

 

They are only just under 4' tall.........I have the option to remote the amps and lose 17 lbs.......think this is the way to go.

 

For some reason I had thought maybe 50 lbs finished............so much for WAF :-"

 

You guys dont even want to know what the shipping from Texas to Alberta is on 5 boxes that total 170 lbs ......

 

And the next project begins |||

 

Perry

 

 

 

 

[OBI56 23]

WOW!!!! I hadn't realized that they were that tall; they actually look to be only about 15 to 18" tall in the pictures. No wonder they are so heavy. BTW, shipping ANYTHING from Texas costs and arm, a leg and your left ball Perry. For some reason, it seems to cost twice as much from Texas as from anywhere else in the US to get stuff up here.

[stevewithrow 0]

I look forward to the review....!!!!

[PDR 1,194]

OBI, I should of mentioned the drivers are all 12".

 

The upper driver has the tweet built in the center, under dust cover. There is also a rear firing tweet.

 

Steve, as soon as I get some time on them I'll let you know how they sound.

 

Perry

[Toy Maker 292]

That's not so bad.... I just got my 2 12" JL's in and they weight in at 45 pounds EACH

These suckers come mounted to 3/4" mdf in the boxes.

 

 

 

[Toy Maker 292]

Is this them ?? http://linkwitzlab.com/index.html

[PDR 1,194]

Nope TM these are a bit different.

Weitrhino is the one that wants the Linkwitz, I do too, but the 6 channels of amplification are a no go for me.

Linkwitz is a premiere designer, he has a cult following, always one of the best OB designers, period.

 

This is a GR Research...Danny Ritchie design... a master in his own right.

 

He has developed too many big name crossover designs to mention, just google him.

 

The servo design and subs is a collaboration between GR and Rythmic audio. They have developed a super fast

sub system......probably very compatible with the quick ribbons you are using.... They are getting many rave

reviews, and they seem to meld very well with the quick response of OB systems. The subs and the amps

are designed to work together. I do know that large slow moving subs have been a problem for both

ribbon and OB designers, not quick enough. One of the reasons I chose the array design is that it uses multi 3" drivers, they are

very fast and keep up to the ribbons nicely, letting me not have to cross the ribbons as low. If I have a weak link

it would be with my subs, excursion and the time it takes for them to settle. I think this is what Bob Carver was addressing

when he put 4 OB subs in a array in his ALSs, so they would keep up with his ribbons. New technology has arrived, that is one

of the reasons I want to hear these new servo subs.

 

 

Here are some links:

http://www.audiocircle.com/circles/index.php?board=16.0

 

http://www.gr-research.com/

 

http://www.rythmikaudio.com/

 

Check em out,

 

Perry