This post will be updated as I decide on the different aspects.
I’ve decided to build a subwoofer + amp for my old, rusty, trustworthy Felicia. This is how my brainstorm has ended up so far:
TDA1562 based amp
Like http://www.stardi.com/diy-12-volt-chip-amp-70-watts-car-power-amplifier/
Requires ~12V and provides 70W music power into 4Ω.
I considered building a class D amplifier, but learned that class D requires a switch mode power supply in order to provide mentionable power. During my research, I continously stumbled upon Phillips TDA1562 which operates as a combination of class-AB and class-H depending on temperature, allowing it to deliver up to 70W depending on supply voltage and die temperature.
The basic TDA1562 setup requires only a small number of passives: some capacitors for the power supply, two giant capacitors for the class-H operation and a couple of other passives.
Speaker Unit(s)
To be decided.
Should look mean, but sound good and be not-too-pricey.
Speaker Box
- Tweed and round headed nails + alu/metal dashboard (a’la 60′s guitar amp)
- Cotton filling + fake leather + sofa buttons
- Fake fur
- Tartan
- Hessian
- Fake leopard
- Latex
- Varnish
- Lace or cutwork
- Wood laminate
Decoration/status LEDs (under cloth?)
- Skull
- Smiley
- VU
- Status/Clip
- Foot tapping guy
Shape/type
To be decided- depends on speaker
