Tag Archives: how to

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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Simulating Subsonic Filters and Subwoofer Response-Excursion Effects

So this is going to be a Part II to my original post from 14 years ago where I first discussed the topic of proper subsonic filter design in conjunction with subwoofer enclosure modeling. It’s been a while, but I … 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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Maiden Flight of the Brio 10 in a Word…Awesome.

I did the maiden flight of my new E-flite Brio 10 this evening. I wasn’t planning on flying it today, since I just barely finished it this afternoon, but the weather was all too perfect to pass up, the winds … Continue reading

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E-Flite Brio 10 ARF Build-up Review

This year for Christmas my wife bought me the E-Flite Brio 10 ARF R/C plane complete with all the accessories needed to get it flying. About two months ago I was browsing through the latest Horizon Hobby catalog when I … Continue reading

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