[Dwarteacher]

If you're just looking for better than factory on deck power these will do wonders.

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6-1/2" Poly Cone Midbass Woofer 4 OhmThis durable 6-1/2" poly cone woofer with rubber surround is designed to work best in small, sealed bookshelf-style cabinets. The damped poly cone creates smooth sound from 45 Hz all the way up to 3,000 Hz and is easy to integrate with many different...

www.parts-express.com

 

[Dwarteacher]

Thank you so much. This is the kind of thing I was hoping to find. However my speakers are all-in-one, a 6.5" woofer with tweeter in the middle.
If you have any favorites in this category, I'd be grateful to know. I will search around on PartsExpress. Thank you.

Here is another from parts express

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HiVi CF260II 6-1/2" Coaxial Speaker PairHiVi's CF260II 6-1/2" coaxial speakers feature a polypropylene injected woofer cone, silk tweeter dome, and an attractive wiring cover on the back plate.Specifications: • Power handling: 50 watts RMS/150 watts max • Impedance: 4 ohms • Frequency response...

www.parts-express.com