Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
"If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."
I need it for car , I'm puting sound directly to speakers from a soundcard. I need small amp (25w or 50w) for center speaker and 2 bass shakers.
I don't mind make it , if there is kit.
I can put them together but I don't know how to design.
If you are making it, you have more flexability, would you want 3 channels?? 1 for the center speaker and 2 for the bass shakers??
National has an amp IC that can deliver 170watts into a 4ohm load with +-28volts, You can also use it with +-12volts and get 60watts into a 4ohm load, but then you have the problem of getting + and - in the car..
For more info, go to nationals site, www.national.com , and search for LM4651 and LM4652, one of these devices is the amp, the other is a MOSFET chip.
I remember i got my Alpine 2x25 amp from an old Mercedes (early 80's model). Those cars used to come with Alpine stereo system as standard and it seems like they had seperate amp for the deck.
I used to run my 12's of it for a while (everybody though it was a cross over dox, Its bit biger then a cigarett box and the quality is great)
and now it gave it to friend of mine to run his 6x9 of it.
If you have a local car yard give that a try you might pick one up for few dollars.
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How many ohms is the speaker??
That would make a diference as to what amp you could use..
Well I don't know.
I's Panasonic EAB-CF2 center speaker.
only information I can find out this speaker is
* 3-1/4" speaker in compact enclosure
* frequency response 400-20,000 Hz
* power range 2-15 watts
* sensitivity 82 dB
25/2 for bass?? How big are the woofers? 4"?
Well it's not a woofer , it's bass shaker also known as bass kicker. It makes vibration under the seat so you can 'feel' the bass. by the way I have Rockford Fosgate 15" woofers in the trunk
Keep in mind that as far as the bass shakers alone are concerened, they just vibrate (as opposed to "reproducing" good, clean sound) so you can get away with the dirtiest, cheapest amp you can get your hands on.
One of those old, cheap (5 bucks at a garage sale or pawn shop) 40-watt "power booster" amps will work just fine with these.
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Sony Head Unit, Sony Unilink input selector, rear deck Kenwood 6x9's, stock door spkrs... All in my '96 Civic, of course :}