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Old 18th November 2008, 09:37 PM   #1
qguy is offline qguy  Canada
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Default which 10 inch driver in a sealed box

Any recommendations on which 10 inch driver to go in a 1.5 sealed box for music only applications

How would the Dayton Titanic and Reference perform in a sealed box ?

I have looked at the 10 inch peerless, but dont want to go the PR route.

thanks
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Old 18th November 2008, 11:49 PM   #2
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I've not checked out the detail for the CSS SDX10, but all the other SDXs do really well sealed.

dave
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Old 19th November 2008, 11:51 AM   #3
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Interesting ....

I'm about to build a Sub as well and also considering a 10" , But could go 8" or 12" depending on where the design leads me. I have a old Meridian 505 Mono Power amp (160 W at 8 ohms) and a NAD THX218 (225Wpc , 780W bridged mono) that I'm going to audition for the role, and probably use a Behringer cx2310 crossover to do the low pass magic.

qguy states that he dosen't "want to go the PR route" ...

Why not ???

I was seriousely considering the PR as a way of opening up the speed and dynamics of the driver without the huffing and puffing of the port.

I'm looking at the Dayton and Peerless as well. Seas also has a good looking couple of options. Although not specifically "Subwoofers" I like the idea of a lighter cone for speed.

The Seas Options in 10" (They also have 8" versions of the items below)
PASSIVE RADIATORS
Seas SP26R (H9946) 10" Passive Radiator @ 88 US $
Seas SP25R (H9902) 10" Poly Cone Passive Radiator @ 47 US $

DRIVERS
SEAS Prestige CA26RFX (H1305) 10" Coated Paper Cone @ 150 US $
SEAS Prestige L26RFX/P (H1209) 10" Aluminum Cone @ 165 US $


I will build a reinforced cabinet out of the Baltic Birch I used to bulid my Fostex 108EZ BIBS.

Scaramoucheii
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Old 19th November 2008, 05:36 PM   #4
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Quote:
Originally posted by scaramoucheii
I was seriousely considering the PR as a way of opening up the speed and dynamics of the driver without the huffing and puffing of the port.
Speed & dynamics are not something i really associate with BR boxes...

dave
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Old 19th November 2008, 06:14 PM   #5
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Ok ... ?

So your saying a Passive Radiator design is a Bass Reflex and, that the 2 have the same characteristics ?

My primary original question was to qguy, as to why he didn't want to go the Passive Radiator route ! SPL ?

I have been doing some extensive listing at my friends house over the past 3 years and his SACD setup of 4 x Classe Omega amps and 4 x Wilson Alexandria X2's is astounding in what I refer to as "speed and dynamics" in the area below 300 hz. The Alexandria X2's are a front ported enclosure with a 13" and 15" in the bass cabinet.

Perhaps describing the sound, on 600 K system, of the upright bass strings vibrating so deeply and clearly, the sound of the bass pedal striking the drum skin shouldn't be described as fast and dynamic ..... but that's how it sounds .... !

What I would like to do is create that large warm tight bass to reinforce the bottom end of my Fostex 108ez Bib's for about 1,000 bucks. I don't have the 600,000 to spend on the Omegas and Alexandrias .....

Scaramoucheii
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Old 19th November 2008, 06:50 PM   #6
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Quote:
Originally posted by scaramoucheii
So your saying a Passive Radiator design is a Bass Reflex and, that the 2 have the same characteristics ?
With an additional mechanical resonance from the PR.

dave
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Old 21st November 2008, 08:31 PM   #7
qguy is offline qguy  Canada
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So would the Reference series woofer be better than the titanic ? I would operate the sub starting at 40 hz down to whatever it can do .

thanks
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Old 22nd November 2008, 06:21 PM   #8
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After much playing in WINISD and contemplating ....

I'm pretty much decided on the SEAS Prestige L26RFX/P (H1209) . 10" Aluminium Cone, In a 98 cu ft box with a 4.5" x 1 inch x 9.8" deep vent. This gives a flat response down to 36 hz and to 25 hz @ -3db. So I guess a little bit like a fonken cabinet. with the same style of internal braceing.

The box will be quite large, (And heavy with the bracing, and I'm planning on a stereo pair, but ..... Should give impressive Low and Sub bass

I currently have a input filter on my ST-70 which is driving the Fostex BIB's, at about 25 hz, (This is an old Van Alstine tweak for the ST70 ) but once I finish the pair of subwoofers I will raise that up to about 200 hz. And use the active crossover to power the NAD Sub Amp from 200 hz down to start with. This will eliminate all the low end load from the Fostex BIB's and the ST70 output transformers,

The Seas will be about 4 db less sensetive than the 108ez BIB's but not going to be a problem with the NAD 218 and an active crossover with a gain control has +/- 6db of gain.

Scaramoucheii
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Old 23rd November 2008, 10:56 AM   #9
95Honda is offline 95Honda  Germany
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I also don't realy know if PR = Speed and dynamics

PR will have more group delay than sealed...

I also have never seen the use for a PR unless you have a size limitation of the box...
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Old 23rd November 2008, 12:01 PM   #10
Thawach is offline Thawach  Thailand
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95Honda the speed of Pr is slowly. i think it's good for some music more than HT.
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