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submitted 6 months ago* (last edited 6 months ago) by mihnt@lemy.lol to c/budgetaudiophile@lemmy.world

Hi there.

I'm using this unit here: https://www.amazon.com/dp/B09YNBHR73

The issue I am having is subwoofers and not having a lot of money to fix my situation.

I currently have that 3 x 8" ported Skar box, but it has such low impedance that the speaker safety trips constantly on it. Godzilla help me if someone says a word with a p in it.

Is there a way for me to rewire that setup to gain more impedance and stop it from cutting off or should I move on and get a single 12" for the small box I have? (I have a behind the seat single 12" enclosure.)

I'd obviously love to have bass as deep as possible, but any options would be nice.

Thanks

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[-] mihnt@lemy.lol 1 points 6 months ago* (last edited 6 months ago)

Oh, sorry.

Box dimensions: 13" bottom depth

8 1/2" top depth

14 1/2" width

13" height

Measured from the outside.

Material is 5/8" thick MDF

[-] Fixbeat@lemmy.ml 2 points 6 months ago

Thanks, I will look into it tomorrow. How much would you spend on the 12”?

[-] mihnt@lemy.lol 1 points 6 months ago

Around $100ish would be ideal. Has Cerwin-Vega been enshittified yet?

[-] Fixbeat@lemmy.ml 2 points 6 months ago* (last edited 6 months ago)

I get .885 cubic feet, which limits the number of 12" subs that will work with it. Of the home hifi subwoofers that I would use in one of my projects, only https://www.parts-express.com/Dayton-Audio-RSS315HO-4-12-Reference-Series-HO-Subwoofer-4-Ohm-295-466 fits the bill, but it is more than you wanted to spend. This car sub would also work, but it is about the same price: https://www.parts-express.com/Kicker-CompRT-12-12-DVC-Subwoofer-4-Ohm-267-614. I know you can find car subs elsewhere for $100 or less, but they often don't give you enough specs to determine what size box that is appropriate, like this https://www.amazon.com/Skar-Audio-IX-12-D2-Subwoofer/dp/B00NHVC7TG/ref=sr_1_3 Car subs are also optimized for gobs of power, meaning they are not very loud, so the more modest power provided by the Fosi might not be adequate.

[-] mihnt@lemy.lol 1 points 6 months ago
[-] Fixbeat@lemmy.ml 2 points 6 months ago

I can’t really say without detailed specifications or a recommended enclosure size and type (ported/sealed). If you can find the TS parameters for this woofer, I can model it for you.

[-] mihnt@lemy.lol 1 points 6 months ago* (last edited 6 months ago)
[-] Fixbeat@lemmy.ml 2 points 6 months ago

You would want the single coil version so that you can get 4 ohms. H7124S (https://www.amazon.com/CERWIN-VEGA-HED-200W-High-Energy-Subwoofer/dp/B071ZC4FQL/ref=sr_1_1)

I modeled the single coil version and this is the response you can expect: What you can get out of this graph is that you won't get much bass below 40Hz and a peak around 70Hz.

[-] mihnt@lemy.lol 1 points 6 months ago

Sorry, confused as to why I'd want SVC over DVC when they are the same Ohm?

[-] Fixbeat@lemmy.ml 2 points 6 months ago

Because with 2x 4ohm voice coils you would either get 2ohm in parallel or 8ohm in series. Neither are ideal. With a single voice coil you get a single 4ohm input. DVC is really ideal if you have two channels that you want to connect to a single sub. Each channel would get 4ohm.

[-] Fixbeat@lemmy.ml 2 points 6 months ago

Because with 2x 4ohm voice coils you would either get 2ohm in parallel or 8ohm in series. Neither are ideal. With a single voice coil you get a single 4ohm input. DVC is really ideal if you have two channels that you want to connect to a single sub. Each channel would get 4ohm.

[-] Fixbeat@lemmy.ml 2 points 6 months ago

Because with 2x 4ohm voice coils you would either get 2ohm in parallel or 8ohm in series. Neither are ideal. With a single voice coil you get a single 4ohm input.

this post was submitted on 23 Mar 2024
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