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Polk Monitor 7b Refab

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Designer:

Heath Harris

Project Category:
Loudspeakers/Cabinets

Project Level

Intermediate

Project Time:

8-20 Hours

Project Cost:

$100-$500

Project Description:

I ran into a pair of Polk Monitor 7b’s with the Peerless tweeter for under a hundred bucks. Mainly because the cabinets were trashed. However the drivers and passive radiator ‘s looked almost brand new. And…they sounded amazing. So I decided something had to be done.

Design Goals:
 
Refurbishing a set of true classics.

Driver Selection:

Factory Polk and Peerless

Enclosure Design

It was already an inch thick so I added one brace in the center, sealed the inside with a rubberized paint and added some batting.

Crossover Design:

I decided to keep the stock crossovers and just recap them and not remove the tweeter protection.

Tips & Tricks:

N/A

Conclusion:

Got to be expensive, so I wrote this up for the Parts Express coupon. But, it was well worth the hours of sanding and Bondo. They are gorgeous again. And sound amazing.

About the Designer:
Well I guess it helps out that I used to design and build cabinets and interior in Sea Ray yachts

Project Parts List:

Part #DescriptionQty.
027-456Dayton Audio DFFC-0.33 0.33uF 400V By-Pass Capacitor2
260-75014-Pack Rubber Cabinet Feet 1.5″ Dia. x 0.625″ H2
260-100Acry-Tech DuraTex Black 1 Pint Roller Grade Cabinet Texture Coating Kit with Textured 3″ Roller1
027-430Dayton Audio DMPC-12 12uF 250V Polypropylene Capacitor2

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