Thursday 4 May 2023
1Up Arcade Mod: Adding Speakers and Amplifier
The 1Up has a slat directly under the joystick panel on an angle. It is about 1/4" thick and its coated with some laminate and 460mm W by 180mm H. I measured out the speakers (80mm D), amplifier (100mm W 40mm H) and the old buttons from the PacMan (1" D about 28mm D). (Inspect the page if you want this template for your laser cutter. You will see a scale factor for mm to pt and the measurements are in mm. It's hand coded SVG.)
I went to the maker room at work and cut the board. The laser had issue with the laminate, so we had to run it 3 times.
I like recycling, so I had an old Insignia NS-PCS40 pair of desktop speakers. I didn't find the speaker specifications,
aside from it using a power adapter that output 12V and 700mA load. When we ripped the speakers appart (doh, screws behind the fabric), I found they were
4 Ohm 40 W. The amplifier I bought, the Kinter MA 170, would have no problem powering those...
So if you want an inexpensive set of speakers, you can try these
I debated using hot glue or expoxy. At least with hot glue, a heat gun can help fix a mistake. But expoxy is permanent, so I used hot glue.
The issue with the hot glue is it is not compressible. So I ended up with 1-2mm of gap between the speaker mount and the faceplate board. Here is the result