I want my 20 hertz.

[danometal 1]

Greetings, and thank you in advance for considering my inquiries. : )

After becoming privy to the specs and recommendations for the 15" BLs, Qs, and SSDs, I have hit a wall in my plans for purchase.

It appears ported enclosures are exclusively recommended for the BLs and SSDs of this driver size. However, the problem is the recommended tuning of which is higher than my target low frequency response of 20 hertz.

My questions are:

1). Are these recommended tuning figures aimed at SPL applications? I'm far more concerned with brilliantly effective low range response than mid- bass volume.

2). Can they be tuned to 20 hertz and still be effective drivers?

3). If not, would a sealed application be more feasible considering my goals?

4). If yes for a sealed appplication, then a 15" Q series would be the most appropriate choice, yes?

5). And finally, if my inquiry lands advice to go with the Q, can I put it in a larger enclosure than recommended?

Peace.

[///M5 2,833]

Can potentially help, but first let's understand your goals.

Is this for your car?

Why are you interested in 20Hz? What are you going to listen to in that range?

Are you familiar with cabin gain?

What levels do you need at 20Hz, ie what is acceptable foll off.

[danometal 1]

Can potentially help, but first let's understand your goals.

Is this for your car?

Why are you interested in 20Hz? What are you going to listen to in that range?

Are you familiar with cabin gain?

What levels do you need at 20Hz, ie what is acceptable foll off.

Thank you for the quick response!

This will be in a daily driver Saturn L200 sedan; a trunk setup. I listen to a variety of music, but I am extremely fascinated with the uber low notes of bass albums for some reason.

As for the cabin gain, I'm only observably familar with the phenomenon, but not the configurations thereof.

Currently, I have 2 Kenwood shallow mount 12" in a single cab Mazda pickup powered by a Rockford P1000.1BD, pushing 891 watts RMS @ 2 Ohms. Their posted frequency response floor is 30 hertz, and observably so. I do understand the lack of cabin gain consistent with single cab trucks, as simply rolling up one window temporarily creates some noticable cabin gain.

My plan is to move the Rockford amp to the Saturn, but go with a single 15" instead of 2 shallow mount 12s, plus I can drop the amp's impedance to 1 Ohms with any FI driver, thus increasing the Rockford's output to 1,300+ watts.

Also, I wouldn't be offended if I indeed must go with a sealed enclosure because I value accurate drum reproduction while listening to metal, as well as deep bass guitar for reggae. However, this may be an audio myth.

Thank you again!

[kjones 2]

BL no... ssd maybe, im still trying to get that low with mine didnt work with sealed. The Q would be a better choice, run that ported. the icons dig pretty deep too..

[Thumpper 266]

personally I would go Icon for the low stuff......

you do not want a peaky sub for playing the rock bottom lows..this will bring on over excursion problems

don't build the enclosure to large either or you will have problems with bottoming out and over exerting

[danometal 1]

personally I would go Icon for the low stuff......

you do not want a peaky sub for playing the rock bottom lows..this will bring on over excursion problems

don't build the enclosure to large either or you will have problems with bottoming out and over exerting

Thank you both for the replies.

I'm afraid I have no idea what Icon is. Is that an FI product?

As for the Q, the specs are really quite appealing, but can it run in a larger than posted ported box?

[john denver 1]

Icon is an ssa product check the store tab at the top

[Kanaworm$ 292]

ICON is an SSA woofer! http://www.soundsolutionsaudio.com/index.php/product-information/icon.html

[danometal 1]

ICON is an SSA woofer! http://www.soundsolutionsaudio.com/index.php/product-information/icon.html

Looks really nice. How do they compare to FI?

[lithium 358]

check out the reviews section, you may find some answers there.

[kjones 2]

icon is more comparable to the Q. havent heard the q but the icon is real smooth

[mikey5472 16]

I have heard the Q at 28hz and the Icon a 27hz. Personally I liked the Icon more in a box tuned that low. Although both were outstanding drivers.

[///M5 2,833]

I've *never* seen a bass album with 20Hz sounds. Lows are one thing, 20Hz is another. Not counting the exception but instead the rule.

[danometal 1]

Thank you, everyone. I will give the Icon consideration. Looks to be a solid sub like all the Fi models.

Peace.

[RE XXXv3 31]

The Eclipse SW8200 in a 1.75 cubic foot sealed box is tuned at 30hz says Eclipse Tech, you wouldn't want to go any lower. I used two in a sealed box with 1.2 each and they were better at 20hz than 30hz, they are bottom end monsters. Two were better in a sealed box than my 05 RE XXX 12 on 1500W, they got 375 each, not bad. The magnet is 200oz they're svc 4 ohm only with 38mm x-max, it's a TC sounds LMS design. I used one in a small ported box and it was OK on 750W.

[RE XXXv3 31]

If you tune at 20hz you will get more rattle-bass than sound bass. If you tune at 20hz and play music that's 30hz it'll be unreliable because most stuff is above 20. Tune at 30 and let the throw take over when it's past 30, you'll want a strong motor for that.

[KU40 173]

The Eclipse SW8200 in a 1.75 cubic foot sealed box is tuned at 30hz says Eclipse Tech, you wouldn't want to go any lower. I used two in a sealed box with 1.2 each and they were better at 20hz than 30hz, they are bottom end monsters. Two were better in a sealed box than my 05 RE XXX 12 on 1500W, they got 375 each, not bad. The magnet is 200oz they're svc 4 ohm only with 38mm x-max, it's a TC sounds LMS design. I used one in a small ported box and it was OK on 750W.

Um, sealed boxes don't have tuning frequencies.

[danometal 1]

The Eclipse SW8200 in a 1.75 cubic foot sealed box is tuned at 30hz says Eclipse Tech, you wouldn't want to go any lower. I used two in a sealed box with 1.2 each and they were better at 20hz than 30hz, they are bottom end monsters. Two were better in a sealed box than my 05 RE XXX 12 on 1500W, they got 375 each, not bad. The magnet is 200oz they're svc 4 ohm only with 38mm x-max, it's a TC sounds LMS design. I used one in a small ported box and it was OK on 750W.

Um, sealed boxes don't have tuning frequencies.

I love the sound of a sealed box, but the lows are a little soft. I'm thinking a ported box tuned to around 28 hertz may be my best bet for the lows. I wish my Rockford amp had a variable SSF instead of either turned off or on at 28 hertz.

[KU40 173]

The Eclipse SW8200 in a 1.75 cubic foot sealed box is tuned at 30hz says Eclipse Tech, you wouldn't want to go any lower. I used two in a sealed box with 1.2 each and they were better at 20hz than 30hz, they are bottom end monsters. Two were better in a sealed box than my 05 RE XXX 12 on 1500W, they got 375 each, not bad. The magnet is 200oz they're svc 4 ohm only with 38mm x-max, it's a TC sounds LMS design. I used one in a small ported box and it was OK on 750W.

Um, sealed boxes don't have tuning frequencies.

I love the sound of a sealed box, but the lows are a little soft. I'm thinking a ported box tuned to around 28 hertz may be my best bet for the lows. I wish my Rockford amp had a variable SSF instead of either turned off or on at 28 hertz.

Honestly if you tune that low and know what few songs you have that may play below that and know to turn it down at those times, you'll be fine without a subsonic filter.