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Old 6th July 2011, 12:45 PM   #1
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Default Would I gain anything???

Greetings!!!

So...running a pair of Hemp Acoustic FR4.5C's...in a vented box...now question...would I gain anything if I put them in an open baffle situation??

I am using dual subs with them crossed over at 80 hz with my miniDSP.

Thoughts??

Thanks kindly!!!
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Old 6th July 2011, 01:53 PM   #2
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You will get a different presentation. You will not necesarrily 'gain' anything other than that. You may or may not like it better. The sound will be free from the box and the imaging will have a more floaty effect.

You might lose some mid bass warmth.

I have tried a few drivers on ob and sealed boxes with bass support and believe personal taste will determine which is better.
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Old 6th July 2011, 02:07 PM   #3
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It will cost you almost nothing to mount your speakers on 2 big cheap baffles and try them out, so go for it. You may need to adjust your subwoofer settings. If you're happy with the open baffle approach, then you can upgrade the baffle material to a nicer wood, or acryl or whatever.
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Old 6th July 2011, 05:28 PM   #4
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The XO will likely need to be quite a bit higher.

dave
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Old 6th July 2011, 08:08 PM   #5
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Well for one...losing mid bass warmth is a no go...love that!!! Even so, I guess it's super cheap to try LOL!!!

I would probably need to go to an 8" or even a 12" driver in order to keep the xover at 80hz no???

Thanks!!
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Old 6th July 2011, 08:44 PM   #6
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You can use minidsp to EQ the mids back, no?
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Old 6th July 2011, 08:57 PM   #7
sreten is offline sreten  United Kingdom
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Hi, unless your baffles are massive you will lose bass response and SPL, rgds, sreten.

Small drivers are a very poor choice for open baffles and only subs.
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Old 6th July 2011, 08:57 PM   #8
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Quote:
Originally Posted by planet10 View Post
The XO will likely need to be quite a bit higher.

dave
Quote:
Originally Posted by sideways View Post
Well for one...losing mid bass warmth is a no go...love that!!! Even so, I guess it's super cheap to try LOL!!!

I would probably need to go to an 8" or even a 12" driver in order to keep the xover at 80hz no???

Thanks!!

I think that Dave means to prevent excursion problems with the Hemps running OB, you'd want to XO the woofers at least a couple of octaves above 80Hz ( in stereo), and even then you could be limited in total SPL before they (Hemps) hit the wall

of course than means woofers with decent FR to at least 500-600 Hz for smoothest transition
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