4-Mat Design

Built this speaker set based on the BR-1 kit from Parts Express. The boxes use a 14 ply phenolic wood showcasing the grain on the side edges. At 14" tall and 20lbs a piece very happy with my first speaker building foray. Built them to run on a vintage 1976 receiver to match larger speakers of that time. Custom metal rods protect the driver cones.

BETA speakers Built this speaker set based on the BR-1 kit from Parts Express. The boxes use a 14 ply phenolic wood showcasing the grain on the side edges. At 14″ tall and 20lbs a piece very happy with m…

How many people does it take to make a public interest design build project get realized...and how much time? Depends on the scale and goals, the Nipmuk project has been on the UMass Department of Architecture radar for over 5 years and has involved more than 100 individuals. This weekend we built a temporary structure on Nichewaug (Petersham) land newly reacquired by the Nipmuk community! [ 33 more words ]

Sky Dome at Nichewaug How many people does it take to make a public interest design build project get realized…and how much time? Depends on the scale and goals, the Nipmuk project has been on the UMass Department…

It was great to be back up at Yestermorrow Vermont last weekend teaching a group of 12 students the art of concrete counter-tops. The best class we have taught in recent years! My biggest worry all weekend was forgetting to bring socks. The weather was as beautiful as the group of students! The projects had several challenges we were able to overcome through collaborative thinking. [ 102 more words ]

https://4matdesign.wordpress.com/2017/08/30/teaching-concrete-counters-in-vt/

Teaching Concrete Counters in VT It was great to be back up at Yestermorrow Vermont last weekend teaching a group of 12 students the art of concrete counter-tops. The best class we have taught in recent years! My biggest worry a…

Finished building the Roadster stereo model. Having built four Aries versions (see other posts) the goal here was to make a bluetooth stereo with a battery backup and internal power supply to both charge the batteries when plugged in and to run the system while charging. Running a test on the battery capabilities. This of course is a general average...volume and input source have a large affect on the rating. [ 101 more words ]

https://4matdesign.wordpress.com/2017/06/12/roadster-bluetooth-stereo-build/

roadster bluetooth stereo build Finished building the Roadster stereo model.  Having built four Aries versions (see other posts)  the goal here was to make a bluetooth stereo with a battery backup and internal power supply to bot…

Summer 2014...more to follow.