Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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External L-pad Connections

Posted by Duster on June 11, 2017 at 15:54:10:

The most fiddly tweak regarding a DIY loudspeaker project is determining a satisfactory tweeter L-pad configuration. I've spent numerous hours over the years fine tuning crossovers by soldering, desoldering, resoldering various resistors in order to determine proper attenuation levels, to my ear. Since a current DIY loudspeaker project I'm working on is a relatively non-critical-listening digital CATV audio application, I decided to literally think outside the box by mounting two pairs of binding posts sideways above the main ETI Cable Pod binding posts to easily connect and disconnect any given set of L-pad resistors, then quickly swap them out with another set if desired. I'll start with 3 different sets of L-pad resistors to choose from, with little concern if yet another set might be required to test. The sets of binding posts for the L-pad is a relatively high-quality Taiwanese-made surface-mount Parts Express #260-302, that only requires two small holes to be drilled through the back panel of an enclosure in order to connect the internal wiring.