| leafybug |
So I recently put a really ghetto and unnecessarily complicated setup into my car to tide me over until I can afford a real setup. It goes:
1 18' home audio Jbl sub in box, except it had a blown amp, so I'm using a mini stereo receiver plugged into a power inverter to power it. I've plugged my RCA cables into the back of the receiver. However the sub only hits fairly high frequencies.
Now I know it's ridiculous and probably can't be remedied, but I was wondering if anyone knew how to make hit the lower notes like it used to when the amp was working. |
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| 2ndgenlude |
so you have a 18" home theater subwoofer in your car with a mini stereo powering it off a normal plug that comes from a power inverter in your lighter socket?
well first off, sub is probably severely under powered, as little stereo towers put out next to no rms power. as for it hitting lower notes, it won't. not unless some settings on the stereo can be changed, and even if, i doubt it will sound much better. head to xscargo or something and buy a amp for it. would sound 100x better from what im getting from this. |
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| bananaboat |
quote:
Originally posted by 2ndgenlude
so you have a 18" home theater subwoofer in your car with a mini stereo powering it off a normal plug that comes from a power inverter in your lighter socket?
well first off, sub is probably severely under powered, as little stereo towers put out next to no rms power. as for it hitting lower notes, it won't. not unless some settings on the stereo can be changed, and even if, i doubt it will sound much better. head to xscargo or something and buy a amp for it. would sound 100x better from what im getting from this.
How about sticking a screwdriver in one ear and seeing if it comes out the other? If it does, there's your problem. |
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| 2ndgenlude |
quote:
Originally posted by bananaboat
How about sticking a screwdriver in one ear and seeing if it comes out the other? If it does, there's your problem.
someone piss in your corn flakes this morning?
where did that comment come from? |
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| Dan_Gyoba |
:drama: In what I hope is a more helpful manner...
First off, the reason why those powered subs hit the low notes that they di is because of the amp in them. Replacing the amp with a mini-stereo amp isn't going to help much, since it's just not designed to produce those low frequencies with any POWER. (No point, since the speakers that they come with won't do it anyway.)
Second, the powered subwoofer should be connected to a low-pass output. The LFE channel fomt he home receiver is already crossed over to low frequencies only. You should use a subwoofer output from your deck, if it has one. If it doesn't... Then you need to either build one, or (more likely) buy a better deck. |
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| sparkycivic |
| you can buy a sub cross-over (lowpass filter), and add it to the input of the amp. either that, or for an appropriately ghetto finish, wind a coil to make a passive low-pass filter to install at the sub terminals. instructions are available on the net regarding how many turns, and what kind of wire to make the coil. |
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