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Outline Minibass, similar to HD15, questions
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DjLeco View Drop Down
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    Posted: 01 November 2014 at 10:27pm
Hi, I own 4 pieces of Outline Minibass speakers, wich is very similar with HD15, and I never found anywhere how to crossover them for maximum efficiency.
 
 
 

 
 
 
 
 
 

 


Edited by DjLeco - 18 November 2016 at 5:50pm
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Young Croc
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I thought some answers fot those speakers will be difficult to obtain...
 
So, how do you process yours HD 15 bins, crossover points, filter used, depth, some bass shelving at ?? hertz?


Edited by DjLeco - 02 November 2014 at 5:56pm
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ceharden View Drop Down
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One of my mates runs a system with I think 12 of the Stackbass (twin version).  I think in the end we settled for running them from about 75Hz up to 140Hz.  They have some quite large lumps above 100Hz, especially in large stacks so need plenty of EQ.

They can be used lower, down to probably 50-55Hz but that wouldn't make much use of the subs below (4/side Opus HB121 Mk2 loaded with P-Audio SD21-1800EL).
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Young Croc
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First, thank you for reply!
 
I'm afraid to cut lower than 55Hz, afraid of overexcursion of speaker, high no more than 100-110Hz.
 
 
Is for mobile use, and without subwoofer, so that's why I'm curious especially about minimum SAFE freq for low cut, filter used and depth (Linkwitz, Butterwoth and slope), and some bass shelving...


Edited by DjLeco - 02 November 2014 at 7:40pm
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You can run them as high as you want, the limit is just how much 'honk' you can live with!

I would say 55Hz is a sensible low cut.  I normally use a Butterworth 24dB for my low cut filters.
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mini-mad View Drop Down
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And cut them as high as 145... doing it below 100 makes them pointless as they are designed to go at least 50hz higher then your playing them.
Once you do this you will feel a nice THUMP in your chest wen you turn them up.
If it sounds like a gorilla is trying to escape, turn it down.
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Young Croc
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Thank you.
 
I will try to use low cut at 52Hz/24db/butterworth, and high cut at 120Hz/18 db butteworth.
 
Any other opinions are welcomed!
 
Especially for bass shelving.
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50-55 is fine.... but cut them higher! Go up to 140-150!! It should pound your chest better. Its design looks to be more like a kick cab. So it should play higher then 120hz
If it sounds like a gorilla is trying to escape, turn it down.
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I have made some modifications:
 
Low cut 53Hz, butterworth/36db/oct.
 
High cut 115Hz, butterworth/24db/oct.
 
Sounds very OK.
 
Now if anyone knows some points and slopes for bass shelving...
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Try moving the upper cut off to 140 not 115... it will hit harder as kick bass.
If it sounds like a gorilla is trying to escape, turn it down.
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Is more than enough sound pressure above 110Hz.
 
Those kick speakers are "followed" by these fullrange speakers:
 
 
 
 
 
 
 
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if your asking for peoples knowledgable opinions, have the decency to try out their suggestions seeing as they took the time to reply. 
Just cut higher as they might play that frequency better than your 'full range' speaker
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