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12" quad reflex

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Category: General
Forum Name: Newbie Discussion
Forum Description: Newbie Discussion/Questions. Look less stupid here...
URL: https://forum.speakerplans.com/forum_posts.asp?TID=103122
Printed Date: 24 June 2019 at 10:46am
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Topic: 12" quad reflex
Posted By: munkey
Subject: 12" quad reflex
Date Posted: 10 January 2019 at 2:18pm
I have two 12" quad reflex bins. One is loaded with rig 12p300's. I thinking this would be better for low mid. Any suggestions on 12" drivers that would be good for sub for the other bin? It's about 340l.

Many thanks


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the midtops!



Replies:
Posted By: munkey
Date Posted: 10 January 2019 at 2:18pm
The cheaper the better as well tbh. I don't want to be putting too much money into it

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the midtops!


Posted By: mini-mad
Date Posted: 10 January 2019 at 8:17pm
Buy a ton of the Thomann 12w woofers... I've built a few bass cabs using these and got quite a good sound. About £50each and 280w. So for in a cab will be wired to over 1000w of handling at 8ohms.

But don't try to push the sub out, let it roll off naturally or you'll just burn them out.




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If it sounds like a gorilla is trying to escape, turn it down.


Posted By: efinque
Date Posted: 10 January 2019 at 8:29pm
Originally posted by mini-mad mini-mad wrote:

Buy a ton of the Thomann 12w woofers... I've built a few bass cabs using these and got quite a good sound. About £50each and 280w. So for in a cab will be wired to over 1000w of handling at 8ohms.

The T.Box? I remember reading to avoid them.

But they are very appealing price-wise.


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https://soundcloud.com/efinque" rel="nofollow - ***SOUNDCLOUD***
https://www.mixcloud.com/efinque/" rel="nofollow - ***MIXCLOUD***


Posted By: IainB
Date Posted: 10 January 2019 at 9:10pm
Originally posted by efinque efinque wrote:

Originally posted by mini-mad mini-mad wrote:

Buy a ton of the Thomann 12w woofers... I've built a few bass cabs using these and got quite a good sound. About £50each and 280w. So for in a cab will be wired to over 1000w of handling at 8ohms.

The T.Box? I remember reading to avoid them.

But they are very appealing price-wise.

Why would you buy the T.Box if you need drivers to load into a cab?

These are most probably what mini-mad is describing  https://www.thomann.de/gb/the_box_speaker_12_280_8_w.htm " rel="nofollow - https://www.thomann.de/gb/the_box_speaker_12_280_8_w.htm  ;


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2Kool4OldSkool.co.uk


Posted By: efinque
Date Posted: 10 January 2019 at 9:20pm
Originally posted by IainB IainB wrote:

Why would you buy the T.Box if you need drivers to load into a cab?

These are most probably what mini-mad is describing  https://www.thomann.de/gb/the_box_speaker_12_280_8_w.htm " rel="nofollow - https://www.thomann.de/gb/the_box_speaker_12_280_8_w.htm  ;

Yes those exactly.. they could be good, entry/mid-level OEM, who knows. The only time I loaded a cab was an Eminence driver and I was quite happy with it.


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https://soundcloud.com/efinque" rel="nofollow - ***SOUNDCLOUD***
https://www.mixcloud.com/efinque/" rel="nofollow - ***MIXCLOUD***


Posted By: munkey
Date Posted: 10 January 2019 at 9:28pm
I'm not sure they'll produce the level of bass I'm looking for. I'm tempted by

http://www.bluearan.co.uk/index.php?id=FANSOV12500LF&browsemode=manufacturer" rel="nofollow - http://www.bluearan.co.uk/index.php?id=FANSOV12500LF&browsemode=manufacturer

http://www.bluearan.co.uk/index.php?id=FANCOL12MB&browsemode=manufacturer" rel="nofollow - http://www.bluearan.co.uk/index.php?id=FANCOL12MB&browsemode=manufacturer

Or
https://www.lean-business.co.uk/eshop/rcf-lf12g301-12-450-watts-8ohm-ferrite-loudspeaker-p-2038.html" rel="nofollow - https://www.lean-business.co.uk/eshop/rcf-lf12g301-12-450-watts-8ohm-ferrite-loudspeaker-p-2038.html

The sovereign is appealing for its price and looks like it could be alright. The colossus would be better. But is it worth the extra money for the extra output.

The rcf seems some where inbetween but also slightly more than I would like to pay.

I'm also unsure weather to just have both cabs filled with the same drivers and at the same frequencies.  I have no information on the cabs.  Maybe have all 8 drivers running up to 120-150 ish to meet the tops.

Thanks for the suggestion though. I'll try and find more info on the thommann drivers



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the midtops!


Posted By: mini-mad
Date Posted: 10 January 2019 at 9:53pm
Level? I have a duel 12 reflex sub loaded with a pair of these doing house music every weekend in a bar and the DJ is relentless... these play very well for a loud bar as a pair. 2x cabs loaded with 4 each would play very nicely. And at less then half the price of 2 you have suggested I would be very surprised if you could hear over £200 difference per cab. As a budget loaded cab you won't go wrong. 

They are super cheap... no harm in loading one cab up and hearing them for yourself. As budget go they arnt half bad




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If it sounds like a gorilla is trying to escape, turn it down.


Posted By: munkey
Date Posted: 10 January 2019 at 11:18pm
True. Cheers. How low is your hpf in your cabs.

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the midtops!


Posted By: mini-mad
Date Posted: 10 January 2019 at 11:29pm
Originally posted by munkey munkey wrote:

True. Cheers. How low is your hpf in your cabs.
40hz on a 48db slope 


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If it sounds like a gorilla is trying to escape, turn it down.


Posted By: smitske96
Date Posted: 10 January 2019 at 11:32pm
Pretty nice Xmax for such a cheap driver Smile


Posted By: mini-mad
Date Posted: 10 January 2019 at 11:33pm
Originally posted by smitske96 smitske96 wrote:

Pretty nice Xmax for such a cheap driver Smile
I bought a few to.play with... for a cheap driver they aren't to shabby.


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If it sounds like a gorilla is trying to escape, turn it down.


Posted By: munkey
Date Posted: 10 January 2019 at 11:36pm
Is there a block user option on here?

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the midtops!


Posted By: mini-mad
Date Posted: 10 January 2019 at 11:44pm
Never tried to... wouldn't know

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If it sounds like a gorilla is trying to escape, turn it down.


Posted By: munkey
Date Posted: 10 January 2019 at 11:49pm
Maybe it's needed. I'm tired of his posts

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the midtops!


Posted By: bob4
Date Posted: 14 January 2019 at 7:45am
Originally posted by smitske96 smitske96 wrote:

Pretty nice Xmax for such a cheap driver Smile


Yeah, 2,5 mm isnt much. Otoh it has 20 BL, and can go flat to 35 hz in a ~75 l enclosure. A pair in 150 l can hit 30 hz at 110 db with 100 watts


Posted By: smitske96
Date Posted: 14 January 2019 at 9:08am
Originally posted by bob4 bob4 wrote:

 
Yeah, 2,5 mm isnt much. Otoh it has 20 BL, and can go flat to 35 hz in a ~75 l enclosure. A pair in 150 l can hit 30 hz at 110 db with 100 watts

Where do you get 2.5mm from? I get (19-8)/2+(8/4)= 7.5mm

EDIT: I already see it, you were talking about the 12-280W and I was talking about the 12-280A.


Posted By: munkey
Date Posted: 14 January 2019 at 10:26am
Such would perform best then? The a or w?

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the midtops!


Posted By: bob4
Date Posted: 14 January 2019 at 10:42am
Originally posted by munkey munkey wrote:

Such would perform best then? The a or w?


TS parameters are available for download. You could easily simulate and play around with both drivers in winisd


Edit: And most importantly, you need to define what is the requirement for "best" in your opinion


Posted By: doller
Date Posted: 14 January 2019 at 11:38am
Over here they are branded as the classic pro from soundhouse. I have 6 of them They take an absolute beating. Forget the ts just turn them up to max and watch the cones. Great to watch, how they don't break I have no idear. I run a xti4000 two a side so a possible 1200w. To clip all night and into the morning. Now getting on for 5 yrs old. Just don't try and put midrange through them it's painfully bad.
I always wonderd why they have the inverted dust cap. Phase bung? Or an emmy LA copy.


Posted By: smitske96
Date Posted: 14 January 2019 at 11:42am
If going for the thomann drivers, definately the 12-280A more then double the Xmax.




Posted By: doller
Date Posted: 14 January 2019 at 11:53am
Sorry I just thought about it. I have had them loaded in a mth30 Marco's one. They are really happy in a horn. Recently I put them into the dual twelve reflex boxes Art Welters one. I just wanted to see how they would fair. Very badly. Unusable. So what I am saying is Reflex I don't know. Horn OK. Just my experience. The part numbers here start lbu so not sure which is which. Sorry to confuse.


Posted By: munkey
Date Posted: 14 January 2019 at 1:55pm
Originally posted by bob4 bob4 wrote:

Originally posted by munkey munkey wrote:

Such would perform best then? The a or w?


TS parameters are available for download. You could easily simulate and play around with both drivers in winisd


Edit: And most importantly, you need to define what is the requirement for "best" in your opinion

I would if I knew how.

Dropping low and spl are what I'm looking for. Bang for buck really. It's just going to get used for small outdoor gatherings.


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the midtops!


Posted By: smitske96
Date Posted: 14 January 2019 at 4:21pm
Dropping low and producing enough SPL require enough Xmax. Do you have any more specs of the current boxes? 
Volume, tuning and also important how is it constructed? Sometimes the driver even won't fit in the box due to the construction.


Posted By: munkey
Date Posted: 14 January 2019 at 4:42pm
I have no specs and can't find them anywhere on the net. If I ever have time, I'll try and lean winisp and  measure the cab properly rather than roughly guessing the volume by memory

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the midtops!


Posted By: APW
Date Posted: 14 January 2019 at 4:46pm
Specs for the Thomann12-280/8-A:
https://images.thomann.de/pics/prod/bda_122808a_uk_screen.pdf" rel="nofollow - https://images.thomann.de/pics/prod/bda_122808a_uk_screen.pdf



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