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-   -   Musical Subwoofer.... ported or sealed? (http://www.diyaudio.com/forums/subwoofers/196955-musical-subwoofer-ported-sealed.html)

nonsuchpro 20th September 2011 10:20 AM

Musical Subwoofer.... ported or sealed?
 
Hey all :) Beating a dead horse here I'm sure :xfingers:

I have a Dayton Audio RSS265HF-4 10" Reference HF Driver I'm building a box for. This driver is considered best suited for a vented box but I want to go sealed because I already have a ported (actually, passive radiated) HT Sub that is great. However, I cant stand it for music so I'm looking to build a very musical sub. Here are the different responses from ported and sealed according to BassBox. The box will be 2.5cu and I tuned the port to 30hz.

Which would you go with strictly for music playback?

Orange=Ported
Red=Sealed
http://i39.photobucket.com/albums/e1...chpro/norm.jpg
Thanks!

Arty 20th September 2011 10:51 AM

none of those would be any good.
try :
53 liters, and tune to 25 hz.
should be more or less flat.
that is what you need.

a cabinet like that is notorious for requiring LONG port.
to clarify, the port may not need to be inside the box, most probably you should let it stick out of it.
That would be the good solution.

nonsuchpro 20th September 2011 11:00 AM

Better?

Vb = 54.71 liters
Fb = 25.86 Hz
F3 = 28.39 Hz
Fill = normal
No. of Vents = 1
Vent shape = round
Vent ends = one flared
Dv = 55 mm
Lv = 160 mm

http://i39.photobucket.com/albums/e1...hpro/norm1.jpg

jonparkhurst 20th September 2011 12:50 PM

Better
 
So much better. THis would roll off nicely with you monitors or other speakers.

JP

thunk303 20th September 2011 01:28 PM

I personally always find my sealed subs more musical, but I think that's because they are so much easier to get right that a ported design.
Depending on your room, try fitting your port on the side (length permitting), I have found I can then fire it down/up/sideways for tuning.

Best of luck

Dean

nonsuchpro 20th September 2011 03:59 PM

Quote:

Originally Posted by thunk303 (Post 2717656)
I personally always find my sealed subs more musical, but I think that's because they are so much easier to get right that a ported design.
Depending on your room, try fitting your port on the side (length permitting), I have found I can then fire it down/up/sideways for tuning.

Best of luck

Dean

I have heard both and agree that the sealed sounds more musical. I made a sealed box last month for another driver and I thought it sounded great but it was missing over an octave. Is there a way I get my sealed specs looking closer to the ported? The HO (high output) version of this sub can go in a smaller sealed box with better results I'm told but I got this at a super deal. I don't want a ground pounder, I already have one of those. I want this to be really really really musical... the best I can make of it.

Thanks all for the input :)

chris661 20th September 2011 04:02 PM

ESP - The Linkwitz Transform Circuit

Chris

nonsuchpro 20th September 2011 04:23 PM

Quote:

Originally Posted by chris661 (Post 2717881)

I will be using the O-Audio Bash amp with the EQ section. Can I achieve this by boosting the lows?

johnr66 20th September 2011 09:03 PM

I don't know specifically about that amp, but the eq should allow you to compensate for the roll off. I find speakers for music to have an F3 in the mid 30Hz range to be more than adequate unless you listen to music with a lot of sub 30Hz content which is rare.

nonsuchpro 20th September 2011 09:20 PM

Quote:

Originally Posted by johnr66 (Post 2718180)
I don't know specifically about that amp, but the eq should allow you to compensate for the roll off. I find speakers for music to have an F3 in the mid 30Hz range to be more than adequate unless you listen to music with a lot of sub 30Hz content which is rare.

I am specifically building this to accompany my near-field monitors in my studio. I do have hip-hip and R&B clients, they are the only ones other than a 5-7.1 mix where I would need sub 30hz strong. I have a DefTech Supercube I that goes down to 13hz for that task. 30hz is good enough for this sub.
Thanks :)


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