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post #1 of 10 Old 05-29-2019, 08:12 AM - Thread Starter
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DIY alternative for svs pb16/ rythmik f25hp / PSA 3611

Wanted to know what a good alternative to those 3 “super subwoofers” would be. Dual 18 inch subs with servo control, multiple mode such as sealed and extended etc. are those more gimmicky or something that can’t really be matched with DIY. I built 3 titan front speakers and have a svs sv-4000 that can’t keep up for reference levels and wanted to buy either a top range subwoofer from a online only company (value) or tackle another DIY for insane subwoofer power. Was thinking of stereo integrity 24 sub either single or some dual setup (maybe opposed like the g25hp from rythmik. How would that compare to the other 3. Or should I be looking at something else. Thanks in advance for any help.
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post #2 of 10 Old 05-29-2019, 08:39 AM
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What is your budget for this potential project? How much space are you willing to fill up with a sub or multiple subs? Is this going strictly for deep bass for movies or is chest pounding and accuracy for music also desired? Also roughly how many cuft is the room? Considering the Titans you should have good midbass.

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post #3 of 10 Old 05-29-2019, 08:52 AM
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^+1

All those questions are great, especially how much space you have. Multiple subs in different places around the room will give you a more consistent experience If you have the room. The SI 24 will require a pretty big box.

From their website:
Quote:
8 to 12 ft^3 sealed, 16 to 20 ft^3 ported, or infinite baffle
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post #4 of 10 Old 05-29-2019, 08:58 AM
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This is my take as of right now, if you feed sufficient power into the Titans they can do a lot of mid bass duty. If you have the space go for at least two Full Marty's loaded with UM18s. Pick up a NX6000DSP and call it a day. If budget and space allow then just go straight to four Full Marty's, get a second 6000, mod the Titan crossovers for the second 15" add the additional 15"s, then call it a day
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Stormbreaker a B&C 21DS115 Subwoofer Solution | Wisconsin Home Theater Meet Thread
You can always turn it down, but you can only turn it up so much (before you run out of power, excursion or structural integrity).
7.1.4 | Yamaha A3070 | Crown XLS 1502 | iNuke 3000 DSP | 2x Aphex 124A | 2x Bic EV15 | 7x Bic FH6 LCR | 2x Bic FH65-B | Sub 21" Stormbreaker | Epson 5010e | 120" DIY AT Screen

Last edited by Red Five; 05-29-2019 at 09:04 AM.
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post #5 of 10 Old 05-29-2019, 09:33 AM
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Good thing is if you go with something like 2 full Marty's, your overall cost is still going to be under $1500 potentially. Call it $200 in wood, $550 for the amp, $300x2 if you go um-18, and $200 for miscellaneous (speaker wire, speakon connector, glue, mattress topper for damping material, paint, etc.. ). Not sure what your tool setup is or isnt.

For what it's worth I had a Rythmik fv25hp but ended up selling it. I replaced it with a full Marty. 1 full Marty isnt as powerful as the fv25hp, but 2 would beat it I believe.

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Equipment: Yamaha 3050, Oppo 103d, PSA mt 110s (L,C,R), Polk tsi200 (SR/L), 2 VBSS, FullMarty, 4 driver BOSS build, umik-1, Epson 3700
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post #6 of 10 Old 05-29-2019, 11:25 AM - Thread Starter
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I figured budget should be around the same cost as one of the internet direct subs so about $2000-$2500 for the subwoofer , enclosure, amp and some form of dsp. I am mostly going for couch shaking movie bass as the titans cover the mid bass well. Room size is huge (whole level of house open floor plan) but listening area is about 17x20x10 with a hallway open to other rooms. Hoping for $2000 it should sound good with music as well but again 75% or more for movie and games. As far as enclosure size goes I got a pretty large corner that I could use. But hopefully nothing to insane as it still has to fit through a standard doorway and go up 3 staircases from the garage. I am hoping for decent single digit extension but I am also hoping somebody will randomly donate a farrari to me so I’ll take what is reasonable for DIY.
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post #7 of 10 Old 05-29-2019, 11:30 AM - Thread Starter
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[QUOTE=BryceDH;58113106]Good thing is if you go with something like 2 full Marty's, your overall cost is still going to be under $1500 potentially. Call it $200 in wood, $550 for the amp, $300x2 if you go um-18, and $200 for miscellaneous (speaker wire, speakon connector, glue, mattress topper for damping material, paint, etc.. ). Not sure what your tool setup is or isnt.

For what it's worth I had a Rythmik fv25hp but ended up selling it. I replaced it with a full Marty. 1 full Marty isnt as powerful as the fv25hp, but 2 would beat it I believe.

Could you tell me how the quality changed going from rhythmik to the Marty. Rythmik strongly emphasis their servo control for accurate bass. I see you said spl went down some but how about SQ is there more, equal or less distortion.
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post #8 of 10 Old 05-29-2019, 11:53 AM
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If the Marty's are going to be the only subs, I've been told they aren't as musical (awesome for HT though). I was using the fv25hp mostly for ulf and have 2 18" VBSS's tuned to 30hz that were handling more of the audible frequencies.

The Rythmik would have better sound quality in my opinion.

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Equipment: Yamaha 3050, Oppo 103d, PSA mt 110s (L,C,R), Polk tsi200 (SR/L), 2 VBSS, FullMarty, 4 driver BOSS build, umik-1, Epson 3700
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post #9 of 10 Old 05-29-2019, 12:32 PM
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Why not build a horn sub like the Danley DTS-10/20 - single driver and output thats best in class.
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post #10 of 10 Old 05-29-2019, 01:12 PM
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Single digits, that can blow almost any budget fast If that is a eventual goal start with one HST24MKIII sealed in around 11cuft. Then pick up an amp that is two channels and puts out serious power, like an FP14000 clone. That will be pushing the budget once you get wood and a few other things like cables etc. With a sealed sub a DSP for setting a high pass filter becomes much less of a necessity, so that would be going for you. The other way of getting that sort of extension is using a ridiculous amount of cheap drivers, like the little JBL12s or PA460s. That would depend more on space than budget. 16 PA460s is still well under budget

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You can always turn it down, but you can only turn it up so much (before you run out of power, excursion or structural integrity).
7.1.4 | Yamaha A3070 | Crown XLS 1502 | iNuke 3000 DSP | 2x Aphex 124A | 2x Bic EV15 | 7x Bic FH6 LCR | 2x Bic FH65-B | Sub 21" Stormbreaker | Epson 5010e | 120" DIY AT Screen
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