Category Archives: General

Building a Notch Filter for the Beyerdynamic DT 770 Pro Headphones with Measurements

In this article I’ll go over how I designed, built and tested a passive notch filter for the Beyerdynamic DT 770 Pro 250-ohm closed-back headphones and include measurements using REW of the different filters responses. I bought these headphones over … Continue reading

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How to Build a Rockin’ Outdoor Speaker Setup with Sump Pump Subwoofer

At long last, here is the complete write-up on how I installed a killer outdoor speaker setup, complete with 12″ subwoofer, using mostly gear from Craigslist, Amazon, Crutchfield and The Home Depot. I’ll go into how I designed this outdoor … Continue reading

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Dan Marx and Kevin Rolfe are DMKR, Cover Classic 80’s Songs

This is the story about a cover band. The unlikely duo of two friends who met in high school. Two strangers who bonded over a common love of music – 80’s music to be more precise. A chance encounter almost … Continue reading

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Making of The Dayton Reference 2-way MTM Center Channel Speaker

Shortly after completing my Dayton HiVi RTS181.3 speakers, I got to work on a matching center channel to finish off the front sound stage of my family room theater. And this weekend, after approximately 10 weeks since I started this … Continue reading

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Weekend Project: Build a 108″ DIY Projector Screen for $28

This weekend I built a super-cheap, no-frills, 108″ projector screen for my family room home theater. A modest setup consisting of a Pioneer 7.1 AVR, some DIY speakers and sub I built years ago and a 50″ Panasonic plasma HDTV. … Continue reading

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The DM-4 Active Reference Series Speaker Project Has Begun!

I have officially broken ground on my latest and greatest speaker project – The DM-4 Active Reference Series Loudspeaker. This is one of those projects that has been in the back of my mind for what seems like forever that … Continue reading

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