Turbosound TL1800

[Ben Lawrance]

Hi all,

 

About 2 years ago, I bought a pair of Turbo TL1800 subs. Since then I had been looking for another pair. I've only just found some.

 

 

Has anyone else ever seen these rare subs? More to the point, has anyone used them? I can't decide whether I like them, stacked 2 (one on top of the other) per side. The output is a lot less than I would have thought.

 

They've been driven by a Lab Gruppen fp6400 (-4dB mode) feeding 1Kw to each stack. With an SPL of 125dB continuous per box, plus the 3dB you get by coupling boxes, it just doesn't seem to have any balls to it.

 

Anyone think of anything I'm doing wrong with these boxes?

 

 

Cheers

[Rob_Beech]

I suppose it all depends what you mean by balls. if you're 100metres back then 131dB at source isn't going to knock you off your feet as a rule but in a medium sized room I see no reason why it shouldn't have enough "balls", the source material is the key of course. they are good down to 44Hz which although to alot of people on here doesn't seem low, its actually as low as most program material needs to go. Gone are the days when your 300kg subs that claim to go down to 23Hz are actually practical and of much use in the live world.

 

Rob

[Ben Lawrance]

To put it into context. I was testing them out on a job in a marquee. Live band playing through them.

 

I stood the other side of the dance floor (about 10/12mtrs away) and I wasn't impressed.

 

High pass set to 40Hz (My DCX only likes steps of 5Hz for some reason) and crossed at 130Hz.

 

Kick drum pounding, and just seemed a bit pansy. I don't know, maybe I've been playing with the big toys for too long, that I've forgoten what any thing else should sound like.

[dave singleton]

I think its a combination of a few things. Firstly with a marquee, if you stand outside the tent your likely to find the bass much more impressive. God knows why but a marquee are laws upon themselves. Secondally having used pro level kit for a while you tend to sit infront of a system like that and be a little less than impressed.

 

I would suspect that using the same setup in a hall might make you change your mind about the subs a bit. But unless your wanting to spend £1.5k+ on a box it doesnt get amasingly exciting in the trouser flapping department.

[Simon Lewis]

Firstly with a marquee, if you stand outside the tent your likely to find the bass much more impressive. God knows why but a marquee are laws upon themselves.

 

Because the canvas or PVC sides act quite well as a panel absorber - which work best at low frequencies. They re-radiate the sound, hence the "good" bass sound on the outside.

 

I do not claim to be the Almighty, I just know a few of his laws....

[jamesperrett]

Have you checked the obvious things like whether the new boxes and old boxes are wired with the same polarity? Using a 40Hz high pass filter may also be removing a little useful signal too - remember that the quoted frequency is usually the -3dB point so the filter actually starts to roll off a little higher.

 

Cheers

 

James.

[Rob_Beech]

Though the cabinets state 44Hz is the -3dB point.......