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Silver Member Username: JmloughreyFarmington, CT Post Number: 230 Registered: Jul-04 | Thinking of getting 2 12" adire shivas, anyone got any reveiws,i saw a video from there site with 60watts to it and the things got massive excursion, think it would perform well at 400rms, its rated 650rms... also...box ideas for the dual 12's, looking ported |
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Bronze Member Username: YoungbloodPost Number: 36 Registered: Aug-04 | if i remember, glasswolf told me to runs them 300-400 watts apiece and to put them in a 4 cubic foot total box tuned to 35 hertz..... |
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Silver Member Username: InsearchofbassPost Number: 250 Registered: Jun-04 | think 1.9 per sub was sound quality box on them. So 3.80 cf total internal volume. Place one inch of fiberglass insulation in (except the board where the subs drop in) and you should be good for displacement of the subwoofers and ports 35 hz sounds good |
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Silver Member Username: CaraudiofngHouston, TX Post Number: 167 Registered: Aug-04 | Sounds about right, he told me 2.0 Cu ft. but it should be fine either way |
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Bronze Member Username: SuicideshifterBristolville, Ohio United States Post Number: 31 Registered: Jul-04 | I run 2 Shivas with a Jbl 600.1 and in a 1.5 cu. ft. sealed box. they reach full excursion with 300 watts going to them in a 1.5 sealed. I havent had ne problems with mine and they sound great. you can't go wrong with these subs and i guarentee you wont be disappointed. |
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Silver Member Username: JmloughreyFarmington, CT Post Number: 233 Registered: Jul-04 | so you think it'd be ok to run them at 400rms (i'd be easy on the gains obviously) in a 2cuFT per chamber sealed box with about 2LBS of polyfill per chamber? I've got an Audiobahn A8002t which will put out 400x2 @ 2 ohms, for an audiobahn amp, it does surprisingly well with SQ... |
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Silver Member Username: JmloughreyFarmington, CT Post Number: 234 Registered: Jul-04 | the 2CuFt is after i add the tuned ports...anyone got any dimentions i could use for this, i dont feel like dealing with math right now |
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Silver Member Username: InsearchofbassPost Number: 300 Registered: Jun-04 | youd be makin the box 2.40 cf without the ports and sub displacement adding the 2 inches of fiberglass insulation which is eqivelent to two pounds of polyfill |
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Silver Member Username: InsearchofbassPost Number: 301 Registered: Jun-04 | each chamber |
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Silver Member Username: JmloughreyFarmington, CT Post Number: 238 Registered: Jul-04 | you can use insulation in a ported box? i always thought that it didnt work... |
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MEXXX Unregistered guest | 35hz is way to high of a Fb for Shiva's. If your looking for pure SQ that will play a near flat response down to around 19hz, than do what I did(kinda). For 2 Shiva's you need 4cu.ft a piece tuned to 22hz. I know thats a big box, thats why I have 4 Shiva's in a 2 pair isobaric setup. This allows the box to be half the size required by 2 Shiva's and it handles twice the power. Now you wont take home any SPL trophies with this design, but it will sound amazing and play lower than anything else on the street Also, I opted to use 2 15" PR's instead of ports to save space. |
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Bronze Member Username: RedskinLondonEngland Post Number: 72 Registered: Dec-03 | For Shiva box designs and recommendations goto www.adireaudio.com |