Step 4: Final push (get the circuit in)
Lets do it step by step.....
I wired up my LEDs and transistors earlier so i could just stuff everything in. Have a look at the first pic in this section. I made them all on flying leads as i really couldnt see the advantage of creating circuit boards for them. i have 3 circuits going in, 2 identicle ones for the Left / Right audio and then 1 transistor with 2 LED strings running off it for the bass tubes. dont forget to include protection resistors for this part of the circuit, you dont want the LEDs to pop after a week. i used 330Ohm
1) Firstly fix your speakers in place, then wire the signal input (Audio + on the speaker ) to the base leg of the transistor (the left one)
2) make sure you use either heat shrink or insulation tape on all your joints here, if something touches here its not going to work and you aren't going to fix it. i screwed my sransisrors to the inside casing to stop them vibrating and moving around.
3) push your LED diffuses into their positions around the speakers and then mount the LEDs into them. i suggest using a glue gun or superglue here to fix them in place and fix the wires down also.
4) Put your dividing cover in place and run all your wires through, at this point i sealed around the edges of the compartment with hot glue.
5) Wire the LEDs to the power output from the main board, (remember to do positive and negative)
6) at this point i fixed my volume control in its little compartment with araldite as the original threads were not long enough to poke through and wired my last transiistor circuit to the positive terminal of the bass speaker.
7) Make sure everything is wired up then mount your bass speaker. i created a mount to hold it at a 25 degree angle but thats your design.
8) put the bass tubes in and insert the LEDs. when happy again fix them with glue. look at the front ogf the housing to check the position of the bass tubes then glue them in place inside.
9) wire up the led string and run all the required cables through the back panel. This for me was the power. switch and audio input.
10 ) screw your main board down. transformer etc and glue the cables down to stop vibrations.
11) Put the back on, and give it a test.
With mine the bass and left/right LEDs flicker at different rates as they have different inputs. as you turn the bass control down there is less signal so the lights go out, same with the volume.
I made the 3.5mm connection rather than using the twin RCA cables as this took up less space on the rear panel and everyone has a spare 3.5 to 3.5 cable now a days (they have green plugs at each end and come with your shiny new computer monitor)
Hope this has been of some use to you.