danometal

Sweet. That makes all the difference!! I should be able to handle that, even being a noob.

Hello. I really have a thing for sealed subwoofer setups, mainly for how well it produces all the details of drums. I understand how going sealed sacrifices output, so I was considering dual 15s sealed in the trunk of my Saturn, so as to attempt to have extra output with sealed SQ. I have around 5 cubes space available, and a Rockford p1000-1bd (I want to run it at 2 ohms @ 500 RMS). Any suggestions for a good pair of 15s of this criteria? Peace.

Very nice. Those angled braces look hard to do though. I have to get a good saw. Thanks again, all those who helped. SSA will be getting some of my money!! Peace.

Awesome.

All of this ^ will make a you a happy Danometal. Post pics of your build. Yea, this sounds like a winner. I got to figure out how to bypass my factory amp in my saturn, and install the head unit. After I get the wires ran, it will be box time!!

The Box plans are designed by JBLCamry here on the forum and are what SSA recommends. Your SSF filter should be fine. Absolutely use it. Most subwoofers are able to play below tuning. Just be careful with the volume knob and do not use any bass boost. I would not go any higher than 35hz with the DCON and not any lower than 28hz. As far as my recommendation I like the 35hz tuning because I feel I get the bost of both low loud rap style bass and the tighter faster transient attack of rock and metal. Your amp should power a pair of DCONS just fine as RF is great quality. Hope this helps! When my tax money comes, it a DEAL. SSA should cut you a commission check. Is there a link to the box plans, or should I search out that user? I would like to know the best port area and volume. I'll be using RE's box calculator for tuning. All I got to do is add a little length to one side of the box in RE's calculator to cancel out the woofer displacement, and then there's my true tuning frequency!! Maybe the box plans cover all this, however. Anyway, thanks a bunch!!

I'm just about sold on this... like an hour after inquiring about sealed 15s!! A couple important questions concerning them: 1). Is the "box plans" the recommended tuning and volume on the Dcon's description in the SSA store? 2). My Rockford amp has a fixed SSF @ 28 hz. What tuning would work well with that, or do I even need it? 3). Can they play below tuning at all like the DDs can? 4). Is your recommended 35 hz the lowest optimal tuning whereas low end extension and transient attack are both realized? Whatever the case, I think 2 of those would love 500 watts RMS (birthsheet actually says 891 RMS, but of course that's at 14.4 V right at clipping, all at some particular frequency). We'll say 600 watts daily.

I was actually just looking at them in the SSA store!! An American sub is hard to find lately. I was at a local audio shop recently learning about DD 1500 series subs. The shop owner stressed DD's recommended 40 hz tuning. I wasn't really crazy about the implications of that. My system goals are transient response, punch, AND low, low end. This is why I was thinking large sealed box. How do the Dcons do in say... 1.5 cubes sealed each after displacement? The price is right, and they look GREAT. After re-reading your topic I see your looking for a 15". DCON does not come in a 15". Read my review on my 10 DCON .... OldSkool_08 DCON Build Log and Review - SSA Car Audio Forum Sweet review, man!! If you were impressed with a single 10, maybe 2 Dcon 12s might meet my goals. I would have room to port them since there's no 15 inch offerings. I would love some advice as to how to tune them to get both low end and punch. I listen to a lot of metal, and I don't want fast drumming to get muddy. Also, I got a thing for suoper low bass music from the 90s. lol

I was actually just looking at them in the SSA store!! An American sub is hard to find lately. I was at a local audio shop recently learning about DD 1500 series subs. The shop owner stressed DD's recommended 40 hz tuning. I wasn't really crazy about the implications of that. My system goals are transient response, punch, AND low, low end. This is why I was thinking large sealed box. How do the Dcons do in say... 1.5 cubes sealed each after displacement? The price is right, and they look GREAT.

Yea, definitely some cool stuff in the SSA store!! I would love some Icons, but I don't have 2k power, nor electrical to support it. I am going to do the big 3 anyway. BTW, I'm willing to be talked into going ported depending on some questions I may have about response. Peace.

Hello Denim. I've been a silent onlooker for a while on many different forum sites, and I've seen you being famously respectful and helpful on all of them. Anyway, for lower power subs, I'd say no more than $200 each, lest I waste my budget, whereas otherwise, I could upgrade power instead. I've been looking at JBL GT0 15s on sonicelectronix, but nobody has reviewed them.

Hello all. My name is Daniel. I joined your forum to be enabled to ask some simple questions in accordance with the knowledge base of those familiar with FI products. Peace.

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.

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.

At this juncture, I don't have a particular subwoofer in mind. I would just like to inquire whether I can build a ported enclosure larger than recommended to obtain a lower tuning. If so, what level of increase could potentially harm the driver? Thank you.

Wow. What a setup!! You're one of many people I've encountered who tune at 27 hertz. I'm thinking tuning around 25 hertz wouldn't be too substantially different, plus my Rockford amp only starts making notes at 20 hertz. In essence, I'm thinking I could just forget the subsonic filter given the small 5 hertz window in between. Any thoughts?

I was thinking a single 15" in 4 cubes. Do they make preamp subsonic filters? Just curious. Yeah actually they do make preamp sub sonic filters. Nice. I may use one and compromise between the 2 discussed frequency ranges, and go 25 hertz. That would be sweet. Really still too low. There will be NO benefit of tuning that low. Really below 28 in a car will NOT help your response in general. I understand that most music doesn't go that low, but a tuning frequency that low would even out the frequency response hump. So it has to be beneficial for somebody looking for that, no? Yea, that's kind of what I was thinking. Plus, I highly value the subsonic response for how cool it is, and how it makes me feel.

I was thinking a single 15" in 4 cubes. Do they make preamp subsonic filters? Just curious. Yeah actually they do make preamp sub sonic filters. Nice. I may use one and compromise between the 2 discussed frequency ranges, and go 25 hertz. That would be sweet.

I was thinking a single 15" in 4 cubes. Do they make preamp subsonic filters? Just curious.

I have music that goes down that low. Currently, I have 2 Kenwood shallow mount 12s in my single cab truck. They sound decent, but they don't do much under 30 hertz. I will be getting a Saturn L200, and I don't really want to put the shallows in the trunk, plus I want to get the super low response I'm currently missing. I'm hoping to be able to tune low and leave the SSF turned off. Those Kenwoods are probably 12dB+ down at 30Hz, I think your perception of Hz is off...by a lot. I'd actually wager that you can't even hear 20Hz, it is pretty much at the low limit for human hearing and most people don't reach that far. Actually, I have a test cd that plays 20 -99 hertz. I can actually hear the 20 on the Kenwoods, just not as loud as 27 +. I have done some research outside of this forum which also suggests a 20 hertz tune in a car would muddy up the sound. I'll proabably just give up this particular ambition of 20 hertz response and go with your advice to tune a FI or Icon to around 28-29 and let it rip with the filter on. Also, I shouldn't have any trouble building the box to exact specs (without going larger as I have previously inquired) considering the shorter required port length. What slot port width would you suggest with the height of the port opening being 15"-16" tall? (with a 15" FI Q or Icon) Thanks for all the good advice, man!!

I have music that goes down that low. Currently, I have 2 Kenwood shallow mount 12s in my single cab truck. They sound decent, but they don't do much under 30 hertz. I will be getting a Saturn L200, and I don't really want to put the shallows in the trunk, plus I want to get the super low response I'm currently missing. I'm hoping to be able to tune low and leave the SSF turned off.

Thank you for the response. However, I am aware of the port length application. * Lower power handling noted The problem lies in the conundrum wherein the port length to obtain a super low tuning (20-25 hertz) is long enough to force my plans to increase the enclosure size to compensate for this length, unless I lessen the planned port width. That leads to a subsequent question. Relatively speaking, would decreasing a slot port width from 3 inches to 2 inches be inadequate for a 15" driver? Please do not go below 27Hz for Port Tuning and that depends on what subs you will use. Port width can be as wide as you want but you want to stay within the recommend port area (12-16in^2 per cube of internal volume), but 2 inches may be a little too narrow. How bout this list your goals and what you want from your next ported enclsosure and we can go from there. Cool. My goals are, in order of highest to lowest priority: Sound quality, low frequency response, SPL I'm curious as to why tuning should be 27 hertz or above. If I went with a slightly higher tuning, it would work, as my rockford p1000.1bd has the subsonic filter at 28 hertz if I turn it on. I'm not going to ask the redundant question of ported vs. sealed. It appears ported is recommended moreso. Anyway, I plan to use a single 15" driver, whether, Icon, FI Q, or SSD. Depending on money I may go with IDmax, but most likely not. Well the Q wants tuning 28Hz and above, Icon wants tuning 27Hz and above and the SSD wants tuning at 33Hz. So tuning below 27Hz wouldnt help you anyway since the company's dont even recommend that low tuning, then your box will kinda become a one hit wonder and music usually doesnt go that low unless you listen to a lot of chopped and screwed music or cd made by a pipe organ. With that set sonic filter you want to tune above 28hz, if you tune below it then the feature will be useless. mm, not so fast. Lowering box tuning will not make the setup a one note wonder. Raising the frequency will, not lowering it. Lowering tuning frequency expands the frequency response range of the driver and makes it more flat. The lower the tuning frequency is, the more the ported box behaves like a sealed box. I'm not sure how you got the findings that say that any of those drivers "want" a tuning frequency above what you listed. We could plug any of those subs into a HT application with the tuning frequency at 15 hz and they would be brilliant. Oh wow. That changes everything. I understand the intensity of the driver's midbass will lessen with the lower tune, but that's completely within the parameters of my sound goals. My Rockford amp begins making notes at 20 hertz, and I would really like to have the full, flat range therein. Honestly, I was strongly considering a sealed box due to its flat response, but it seems unanimous within experienced installers that ported is preferable in a mobile setup. I would love to know if in fact the woofers I listed are capable car subs tuned to 20 hertz. That would be the dealmaker for me.

Thanks!!

Thank you for the response. However, I am aware of the port length application. * Lower power handling noted The problem lies in the conundrum wherein the port length to obtain a super low tuning (20-25 hertz) is long enough to force my plans to increase the enclosure size to compensate for this length, unless I lessen the planned port width. That leads to a subsequent question. Relatively speaking, would decreasing a slot port width from 3 inches to 2 inches be inadequate for a 15" driver? Please do not go below 27Hz for Port Tuning and that depends on what subs you will use. Port width can be as wide as you want but you want to stay within the recommend port area (12-16in^2 per cube of internal volume), but 2 inches may be a little too narrow. How bout this list your goals and what you want from your next ported enclsosure and we can go from there. Cool. My goals are, in order of highest to lowest priority: Sound quality, low frequency response, SPL I'm curious as to why tuning should be 27 hertz or above. If I went with a slightly higher tuning, it would work, as my rockford p1000.1bd has the subsonic filter at 28 hertz if I turn it on. I'm not going to ask the redundant question of ported vs. sealed. It appears ported is recommended moreso. Anyway, I plan to use a single 15" driver, whether, Icon, FI Q, or SSD. Depending on money I may go with IDmax, but most likely not. Well the Q wants tuning 28Hz and above, Icon wants tuning 27Hz and above and the SSD wants tuning at 33Hz. So tuning below 27Hz wouldnt help you anyway since the company's dont even recommend that low tuning, then your box will kinda become a one hit wonder and music usually doesnt go that low unless you listen to a lot of chopped and screwed music or cd made by a pipe organ. With that set sonic filter you want to tune above 28hz, if you tune below it then the feature will be useless. Excellent. Thank you!! Which would you recommend for this application, the Q or the Icon? They seem to be quite similar. Also, does the suggestion to not tune so low have something to do with cabin gain, or is that more based on driver design?

Thank you for the response. However, I am aware of the port length application. * Lower power handling noted The problem lies in the conundrum wherein the port length to obtain a super low tuning (20-25 hertz) is long enough to force my plans to increase the enclosure size to compensate for this length, unless I lessen the planned port width. That leads to a subsequent question. Relatively speaking, would decreasing a slot port width from 3 inches to 2 inches be inadequate for a 15" driver? Please do not go below 27Hz for Port Tuning and that depends on what subs you will use. Port width can be as wide as you want but you want to stay within the recommend port area (12-16in^2 per cube of internal volume), but 2 inches may be a little too narrow. How bout this list your goals and what you want from your next ported enclsosure and we can go from there. Cool. My goals are, in order of highest to lowest priority: Sound quality, low frequency response, SPL I'm curious as to why tuning should be 27 hertz or above. If I went with a slightly higher tuning, it would work, as my rockford p1000.1bd has the subsonic filter at 28 hertz if I turn it on. I'm not going to ask the redundant question of ported vs. sealed. It appears ported is recommended moreso. Anyway, I plan to use a single 15" driver, whether, Icon, FI Q, or SSD. Depending on money I may go with IDmax, but most likely not.