Converting passive woofers in a tower speaker to active woofers? - AVS Forum
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post #1 of 12 Old 08-30-2013, 11:41 PM - Thread Starter
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Okay so I have some older Kenwood tower speakers I snagged off craigslist for next to nothing just for fun computer speakers. However, my roommate's tiny little Logitech subwoofer is MUCH louder and punchier than my 15" passive woofers. This may be a stupid questions, but could I add plate amps to these speakers and turn these 15" woofers into powered subwoofers?

I'm very interested at getting into DIY projects and don't have much experience. So if this is possible, please point me in a direction or explain to me in a simple way.

Here are the speakers:
http://i.imgur.com/OPIKCcL.jpg

Thanks!
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post #2 of 12 Old 08-31-2013, 03:05 AM
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They should be better than most PC speakers, What amp are you using to drive them ?

If you use a plate amp for a subwoofer, you would be loosing the woofer in the three way speakers and would create a hole in the response as there would no longer be a woofer
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post #3 of 12 Old 08-31-2013, 09:20 AM
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how did you hook them up to your computer?

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post #4 of 12 Old 08-31-2013, 01:39 PM
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Quote:
Originally Posted by bradleyedward View Post

This may be a stupid questions, but could I add plate amps to these speakers and turn these 15" woofers into powered subwoofers?
They are not sub drivers.
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post #5 of 12 Old 08-31-2013, 03:21 PM
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You can add new 15" drivers and plate amps and turn them into sub-woofers... but, like Alpha Niner said, the drivers are more of a woofer then a sub-woofer and will probably blow up if you try to use them that way.
You're better off just leaving them how they are and building something cheap for sub duty... maybe an anarchy tapped horn, or a cheapo sealed / ported infinity 1260 12"
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post #6 of 12 Old 08-31-2013, 04:25 PM
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Just add a cheap powered sub.
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post #7 of 12 Old 08-31-2013, 05:22 PM
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Those 15 inch woofers should be able to play at least 35 hz. or even 30 hz, Pretty sure the the TS has them underpowered or worse their wired out of phase. Give it some juice and it should provide ample bass, not subwoofer kind of bass, but should be decent enough.

As for conveting them into subwoofers, that depends on the woofer itself, I have converted 12 inch kenwood and KEF woofers into subwoofers and their fine.
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post #8 of 12 Old 08-31-2013, 09:06 PM
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Stupid question, did you change the speaker settings in the computer to large and fiddle with the eq?

YID DIY
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post #9 of 12 Old 09-01-2013, 06:07 AM
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Quote:
Originally Posted by bradleyedward View Post

Okay so I have some older Kenwood tower speakers I snagged off craigslist for next to nothing just for fun computer speakers. However, my roommate's tiny little Logitech subwoofer is MUCH louder and punchier than my 15" passive woofers. This may be a stupid questions, but could I add plate amps to these speakers and turn these 15" woofers into powered subwoofers?

I'm very interested at getting into DIY projects and don't have much experience. So if this is possible, please point me in a direction or explain to me in a simple way.

Here are the speakers:
http://i.imgur.com/OPIKCcL.jpg

These speakers are problematical. The woofer drivers in them are probably cheaper than cheap. They no doubt lack what it takes to deliver good bass. No amount of good electronics are going to overcome that absence of worth.

If the boxes have a good real wood veneer on them, and were solid they might be the basis for a thorough going re-engineering project, but you don't seem to be experienced enough with this sort of thing to have a good chance of success.
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post #10 of 12 Old 09-01-2013, 06:13 AM
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Quote:
Originally Posted by qguy View Post

They should be better than most PC speakers, What amp are you using to drive them ?
+1, and what EQ?

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post #11 of 12 Old 09-05-2013, 11:34 AM - Thread Starter
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I'm using an older 5.1 Kenwood receiver. I haven't changed any EQ settings and am playing everything through "direct"
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post #12 of 12 Old 09-05-2013, 02:07 PM
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Use "Stereo" setting, then adjust the bass from the AVR or use the EQ (if you have) from the PC if your using a PC as source
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