Polk Monitor 7b Refab
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 # | Description | Qty. |
| 027-456 | Dayton Audio DFFC-0.33 0.33uF 400V By-Pass Capacitor | 2 |
| 260-7501 | 4-Pack Rubber Cabinet Feet 1.5″ Dia. x 0.625″ H | 2 |
| 260-100 | Acry-Tech DuraTex Black 1 Pint Roller Grade Cabinet Texture Coating Kit with Textured 3″ Roller | 1 |
| 027-430 | Dayton Audio DMPC-12 12uF 250V Polypropylene Capacitor | 2 |
It is great to see this type of preservation! I am in the process of doing the same with a pair of Monitor 5s. I am replaceing the tweeter with the new replacement offering from Polk and doing a great deal of filling sanding and veneering. THe beveled edges on these later 5s are tricky. Nice Work sir!!!