file Another SuperScooper Doodle... Discuss

7 years 10 months ago - 6 years 7 months ago #16167 by levyte357
Another SuperScooper Doodle... Discuss was created by levyte357
Nicky wanting to use dodgy drivers in the SS18, prompted me to mess with it again.



I'm guessing on gap below rear baffle being approx 4.5", though not necessarily the "real throat".

Guessing chamber now becomes approx 55-65 litres, horn probably shortens to approx 195cm, which "may" nicely shorten
the excessive SS18 throw.

Good chance on PD1850, PD186, V18-1000, Fane 1000 liking this.

Comments?

\"When in Vegas, do as the vegasians do\".

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7 years 10 months ago #16170 by bitzo
Replied by bitzo on topic Another SuperScooper Doodle... Discuss
without negative expansion?

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7 years 10 months ago #16171 by levyte357
Replied by levyte357 on topic Another SuperScooper Doodle... Discuss

bitzo wrote: without negative expansion?


Probably is some -ve expansion some where, but the SPL gain from that is fine with me.. :lol:

Of more importance, is enough compression in the initial throat area to acheive decent SPL downto approx 40HZ.

Confirmation of chamber size and horn length, given gap below rear baffle = 4.5" would be start.

Don't forget, Rog has said on the other side, you can't depend on software to accurately predict Scoop performance, "you have to play it by ear".

Large component is actually "arranging the horn", so it "looks" right.

\"When in Vegas, do as the vegasians do\".

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7 years 10 months ago #16173 by bitzo
Replied by bitzo on topic Another SuperScooper Doodle... Discuss
Some of my mates prototyped a scoop we discuss in the eminence thread. Loaded with 18sound 1300, may be isn't the most suitable driver but sound pretty good IMHO in this cab.

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7 years 10 months ago #16174 by levyte357
Replied by levyte357 on topic Another SuperScooper Doodle... Discuss

bitzo wrote: Some of my mates prototyped a scoop we discuss in the eminence thread. Loaded with 18sound 1300, may be isn't the most suitable driver but sound pretty good IMHO in this cab.


One of our "molested" SS18 ideas ? :lol:

Have received a PM that this new drawing looks very similiar to a very high performance well known scoop. smiley22

Careful as we go from here.

\"When in Vegas, do as the vegasians do\".

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7 years 10 months ago #16175 by bitzo
Replied by bitzo on topic Another SuperScooper Doodle... Discuss
pmed mine version negative expansion flavoured. PDF Attachment

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7 years 10 months ago #16176 by levyte357
Replied by levyte357 on topic Another SuperScooper Doodle... Discuss

bitzo wrote: pmed mine version negative expansion flavoured. PDF Attachment


Saw that.. Interesting..

\"When in Vegas, do as the vegasians do\".

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7 years 10 months ago #16182 by bitzo
Replied by bitzo on topic Another SuperScooper Doodle... Discuss
I've to tweak a bit my script to model dynamically your layout, holydays come.. time to feed my akabak beast.

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7 years 10 months ago #16183 by swan
Replied by swan on topic Another SuperScooper Doodle... Discuss
horn probably shortens to approx 195cm, which "may" nicely shorten
the excessive SS18 throw.

195cm equates to almost 2meters or aound 6foot (masive boxes) :lol: Should it not read 195mm. I like the plans though.

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7 years 10 months ago - 7 years 10 months ago #16184 by levyte357
Replied by levyte357 on topic Another SuperScooper Doodle... Discuss

swan wrote: horn probably shortens to approx 195cm, which "may" nicely shorten
the excessive SS18 throw.

195cm equates to almost 2meters or aound 6foot (masive boxes) :lol: Should it not read 195mm. I like the plans though.



:lol:

Yes it should read 195cm...

We often have a little doodle with Rog Mogales Superscooper 18, lends itself nicely to tweaking, and offers very comprehensive plans.

bitzo wrote: I've to tweak a bit my script to model dynamically your layout, holydays come.. time to feed my akabak beast.


I'm estimating, the rear baffle should be approx 545mm long.

The "real" throat will probably fall somewhere on the small diagonal after the "pseudo" throat,
And will be approx 4" - 4.5", (101.6mm - 114mm), 609.6cm2 - 685cm2.

\"When in Vegas, do as the vegasians do\".

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