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Void V18-1000 vs B&C 18TBX100 in superscoop
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levyte357- View Drop Down
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Points: 8128 		Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 10 October 2020 at 3:02pm
Originally posted by Noyzmunky Noyzmunky wrote:

..
Also 2.5k@4R is a bit light to run two drivers for heavy dub, not enough headroom. I would be wanting to have way more amp headroom, that's how you keep drivers happy. Have enough room to hit transients with authority. 2-2.5k a driver.... That's more like it.


From what I've seen of many dub systems, people think they need huge amount of power per driver, because their sub amp/amps, are not delivering what it says on the tin, down to 40hz.

Void Infinite 8 MK2 will deliver exactly what spec says, and exceed it, given right conditions.

Have seen Void Infinite 8MK2 power 2x 8 ohm Turbomax 1500s per channel, which must be one of the most difficult loads on the planet.

I recommend the Void amp or Powersoft X series, because I have heard them deliver sub notes with quality and authority.

Have heard many lightwegiht amps rated at double power of the Void, and clipped before matching it's performance, on the same load/rig/power.
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Originally posted by heavydub heavydub wrote:

Maybe I'm not considering something?


Yeah, you're not considering getting a bit fresh with the EQ

You'll blow a couple of drivers your first few times out, or you're doing it wrong

You will need to learn where the limits of your rig are. You can burn out a coil easy as with that sort of music and a tiny bit of distortion and still be within your limiters..
Also 2.5k@4R is a bit light to run two drivers for heavy dub, not enough headroom. I would be wanting to have way more amp headroom, that's how you keep drivers happy. Have enough room to hit transients with authority. 2-2.5k a driver.... That's more like it.
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levyte357- View Drop Down
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Points: 8128 		Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2020 at 5:04pm
Originally posted by heavydub heavydub wrote:

Originally posted by levyte357- levyte357- wrote:

Very important question, not mentioned.

What amplifier do you intend to power 4x Void V18-1000s with?
Probably a labgruppen FP14000.
Or any decent amp that is able to feed around 2500w per channel @4ohm. This is what I've read around SP. 

If I'm not unpleasant, Could you please reply to my previous questions? Specially the about HPF. Sorry for asking again.


If I were you, I would not trust all manufacturers amplifier specs as truth.

90% of amplifier manufacturers these days, provide measurements taken  at 1khz.

For Reggae/Dub systems, Sub amplifier selection is critical.

Member here once stated  Crown Macrotech MA5000VZ, performed better on sub, than Lab Gruppen FP14000.

I would suggest:
  • Void Infinite 8MK2 or Powersoft X series.
  • 40hz/18db Butterworth HPF for 4x V18-1000 loaded Superscoops.
  • Add chamber wadding as suggested in Superscooper plans
Above are measures I was suggesting.




Edited by levyte357- - 09 October 2020 at 5:05pm
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Originally posted by levyte357- levyte357- wrote:

Very important question, not mentioned.

What amplifier do you intend to power 4x Void V18-1000s with?
Probably a labgruppen FP14000.
Or any decent amp that is able to feed around 2500w per channel @4ohm. This is what I've read around SP. 

If I'm not unpleasant, Could you please reply to my previous questions? Specially the about HPF. Sorry for asking again.
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Very important question, not mentioned.

What amplifier do you intend to power 4x Void V18-1000s with?
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Originally posted by levyte357- levyte357- wrote:

Originally posted by paulus paulus wrote:

get the voids , i used the B N C in small chamber scoops , just sound very regular untill they buckled v1000 sounds amazing in small chamber cabs  


If dude has mind made up on Superscoopers, Voids would be one of the top  drivers in it.

However I think more drivers would work well in the Mykey Scoop.

Voids in Mykey Scoop would be real loud, louder than PD1850, but just need "few measures", to ensure warmth.

Sure a few 18sounds drivers, will pound in Mykey Scoop as well.
"few measures"? are you talking about crossover points / eq?
and moreover: Which 18sound driver are you talking about?

Anyway, if so much people is happy with Void and superscooper, I think I could go with them. I just hope they will go low enougth. At what frequencies would you HPF 4xVoid in superscooper to find a good compromise between sub notes and overexcursion?
Thank you for your patience, I know I have lot's of questions


Edited by heavydub - 09 October 2020 at 3:43pm
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Originally posted by Tweeter_Box Tweeter_Box wrote:

Void will be fine, its powerfull enough to work in most boxes without struggling

BUT

its easier to get recone kits for B&C from wat i remember

ALSO

youll likely be reconing B&C more oftem than Void if your playing hooligan dub !!
I have a friend that owns different kind of speakers from years. Not a sound system, I'm talking about 2 or 3 way audio systems mostly used for live events or techno dj set. He never reconed a driver in his entire life. He is very careful with limiters, clipping and he uses good quality amplifiers.

In SP I often read about the recone "problem". Why? I mean, why lot's of reggae/dub sound system owners, at a certain point needs to recone their driver? 
I can understand that modern digital dub it's very heavy on low frequencies.. but if you are carefull with limiters you should preserve drivers life. Am I wrong? Maybe I'm not considering something?
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Points: 8128 		Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2020 at 1:55pm
Originally posted by Tweeter_Box Tweeter_Box wrote:

youll likely be reconing B&C more oftem than Void if your playing hooligan dub !!


"B&C 18TBX100 is the most blown driver in Southall"

Wonder who said that !!

LOL
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Void will be fine, its powerfull enough to work in most boxes without struggling

BUT

its easier to get recone kits for B&C from wat i remember

ALSO

youll likely be reconing B&C more oftem than Void if your playing hooligan dub !!
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levyte357- View Drop Down
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Originally posted by paulus paulus wrote:

get the voids , i used the B N C in small chamber scoops , just sound very regular untill they buckled v1000 sounds amazing in small chamber cabs  


If dude has mind made up on Superscoopers, Voids would be one of the top  drivers in it.

However I think more drivers would work well in the Mykey Scoop.

Voids in Mykey Scoop would be real loud, louder than PD1850, but just need "few measures", to ensure warmth.

Sure a few 18sounds drivers, will pound in Mykey Scoop as well.
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get the voids , i used the B N C in small chamber scoops , just sound very regular untill they buckled v1000 sounds amazing in small chamber cabs  
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Originally posted by levyte357- levyte357- wrote:

You can only get the PD1850 series 1 (Mk1 and Mk2) used now, they stopped making them years ago.

In UK, you can probably buy freshly reconed Series 1 PD1850s, for £280.

Suggest you forget all about the B&C 18TBX100 for your purposes, For years most Heavy Dub Sounds used PD1850s in Scoops similar to Mykeys.
Precision Devices, as you said, stopped making PD 1850. I would avoid used drivers. And I would like to be able to recone my drivers, if needed, in next years. So I'm not considering PD.

Why sould I forget 18tbx100 for my purposes? What can't 18tbx100 specifically do? Be loud? Reproduce low ends?

Anyway, I could get Voids. Do they sound musical? It's very important to me.

Also, before build any design, I would like to know how the sound this design produces changes. Specifically: let's say we have 4X superscoop and 4x mykey scoop, everything Void v18-1000 loaded. What difference there should be between the two stacks?


Edited by heavydub - 12 October 2020 at 10:58am
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