Recent content by Andre Vergison

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    PM DIY Baffle Step

    Summarizing a bit: That's true indeed, discussed above. 6 dB it is, and http://audiojudgement.com/speaker-baffle-design-and-diffraction/ explains it nicely: What actually happens is, that the sound which should be going backwards, reflects from the baffle and goes forward. These waves will...
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    PM DIY Baffle Step

    True. I tried this out using two 6" drivers close to each other and an SPL meter somewhere in the room, and feeding the drivers with 400 Hz. In parallel I get 6 dB gain when adding the second driver, and power has doubled. When wired in series then shunting one of the drivers (half impedance ->...
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    PM DIY Baffle Step

    After reading articles such as https://sound-au.com/bafflestep.htm and https://trueaudio.com/st_diff1.htm it seems to me that the PM DIY would loose 6 dB due to the baffle step whenever used in open air, that is when there is no back wave reflection. Assuming a box width of 40 cm then a 6 dB...
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    PM 60 & 90 settings and alternative drivers.

    Hi Leon, I'm curious about the following: 1/ Wouldn't the sticker in the middle of the right CD obstruct sound? 2/ Wouldn't positioning two boxes side by side introduce lobing at higher frequencies? I.e. when you walk from left to right at at few meters distance then you would notice a...