From 36ef19906818555443217bacfbe372acd7b16d75 Mon Sep 17 00:00:00 2001 From: Svjatoslav Agejenko Date: Tue, 3 May 2022 15:22:22 +0300 Subject: [PATCH] addad speaker improvement ideas --- misc/portable stereo active speaker/index.org | 29 ++++++++----------- 1 file changed, 12 insertions(+), 17 deletions(-) diff --git a/misc/portable stereo active speaker/index.org b/misc/portable stereo active speaker/index.org index e85fa1f..0cef8d3 100644 --- a/misc/portable stereo active speaker/index.org +++ b/misc/portable stereo active speaker/index.org @@ -214,7 +214,6 @@ And attaches to the remaining components: [[file:front%20panel/attachment.png]] - * Extra capacitors Another thing that become clear during load-testing: output power/volume can be further enhanced by adding high power capacitors @@ -245,10 +244,12 @@ Download: + [[file:center%20box/center%20box.FCStd][FreeCAD file]] + [[file:center%20box/center%20box.stl][STL file]] - * Conclusions / TODO +Photo of initial PSU + audio amp test: +[[file:initial%20test.png]] + -These things could be done better: +Improvement ideas: + Instead of using undersized heatsinks on the audio amplifiers and need for active cooling as a consequence, it would be better to try @@ -256,21 +257,15 @@ These things could be done better: would provide plenty of cooling and reduces power losses within cable, since amplifier would be as close to the speaker as possible. -+ I used agile design. That is, implemented functionality ad-hoc. If I - had done design in advance, then I could have had smarter connector - layout between main board and front panel. That is: Instead of - multiple smaller cables, one wide (multi connector) cable. ++ Add possibility to power device from USB socket in addition to + batteries. -+ Screw holes are too close to the edges on the front panel. ++ Front panel: + + Use digital voltage indicator to gauge remaining battery power. -+ It would be better if screw heads were slightly buried within - construction body. + + Add possibility to have multiple inputs. + + It would be better if screw heads were slightly buried within + construction body. -Overall, it was good learning experience and I was able to test -various ideas on it. Will add cooler later :) - - -Photo of initial PSU + audio amp test: - -[[file:initial%20test.png]] + + Screw holes are too close to the edges on the front panel. -- 2.20.1