1st project!!!!

[Taye1]

Check out my intro on my profile

Well this my 1st project, but a lil' info first.

Many of you may know of those portable external speakers that people use for their Ipods and stuff. Well I wanna make my own but more powerful!!!
and well there's these guys at school that like to show off with their speakers so I wanna shut em up.

Well this is what I've done and got so far:

A

TEH SHOX EATER!!!!(Not done yet.)

• A 6x9 speaker from a car (4 ohms, 30-70watts)
• RCA cable
• Speaker wire
• A tiny tweeter (Also from a car.)
• RCA conversion to a 3.5mm male jack.
• Kenwood split system component.
• Will make the enclosure later.

(No amp!!!)
^^^ There's the problem. I did a test run using my cellphone as the music player and it's really quiet..... I wanna make an amp but I don't know how and what components I need and where to get em.

The End..... For now

Any ideas,comments, and changes are welcome

[star882]

You can just buy a cheap amp from Goodwill if you want something that just works, or you can do a modern design using a chip from TI or some other semiconductor company.

[Taye1]

^^^ The thing is that I wanna build it.

Can I use a chipset from an old RC Car?

[star882]

Motor drives operate at too low a carrier frequency for audio. They're typically in the few kHz range while TI's Hybrid Digital chips operate at 250kHz and above.

[chris661]

Hmmm...

If you wanna really shut them up, a small switching amplifier (there's some decent kits on 41Hz.com/shop), powered by a 12v battery would work. There's some really really small amplifiers, but they use small SMDs, so a compromise could be the amp6-basic.

Apart from that, I'm sure the guys here can recommend you some other amplifiers.

You're also going to need a cabinet for that driver.

[trondareo]

You can have a weak puny amp as long as you find speakers with really high efficiency. I rock my room with one watt and 95dB / watt speakers.
I second finding a small chip amp. There are plenty on ebay.