As you can see from the title I am just dipping my toes into the water here. I come from the projection side of diy and I am an audophile as well. I can solder fairly well but not that great at understanding circuit designs. All i really want to do is build my own 10" or 12" sub box for HT with a descent amp, possibly this one 250W Subwooder amp . I am kinda tight on my budget wichi is directly proportional to gas prices and tuition 
. I do not really want to exceed $300 at most, less is more prefered. I just want something that will pack a gorgeous punch, lol better then my little 6.25" magnavox TIB sub. I would reather learn how to read the circuitry and give it a shot myself but it's probably easier to make suggestions. Any help is greatly appreciated.
. I do not really want to exceed $300 at most, less is more prefered. I just want something that will pack a gorgeous punch, lol better then my little 6.25" magnavox TIB sub. I would reather learn how to read the circuitry and give it a shot myself but it's probably easier to make suggestions. Any help is greatly appreciated.oh yea, the LM3886 from chipamps (chipamps LM3886) looks like something i could assembly fairly easily on my own. Unless for me being new, if it would simply be better to buy an already assembled amp.
Hi,
go and read Leach from cover to cover. http://users.ece.gatech.edu/~mleach/lowtim/bckgrnd.html
and ESP http://sound.westhost.com
go and read Leach from cover to cover. http://users.ece.gatech.edu/~mleach/lowtim/bckgrnd.html
and ESP http://sound.westhost.com
If you buy subwoofer elements with good effiency ( >96 dB SPL per Watt )
you may use less power.
Maybe even a LM3886 Chip Amp ( 60 Watt ) will give enough power to shake your house.
60 Watt into 96 dB SPL
gives same Sound Pressure Level as
240 Watt into 90 dB SPL
Each 3 dB is like doubleing power of amplifier.
you may use less power.
Maybe even a LM3886 Chip Amp ( 60 Watt ) will give enough power to shake your house.
60 Watt into 96 dB SPL
gives same Sound Pressure Level as
240 Watt into 90 dB SPL
Each 3 dB is like doubleing power of amplifier.
hey there lineup,
thanks bro i never knew that regarding db's. Just thought the higher the louder but no correlated to wattage. I was considering using the 250w amp i posted before with an infinity sub here. The sub is 4 ohms so the amp should be pressing around 272W assuming the specs are right on the money. Or this sub , which cost more but goes down to 18hz
thanks bro i never knew that regarding db's. Just thought the higher the louder but no correlated to wattage. I was considering using the 250w amp i posted before with an infinity sub here. The sub is 4 ohms so the amp should be pressing around 272W assuming the specs are right on the money. Or this sub , which cost more but goes down to 18hz
» 12" 4-ohm subwoofer
» polypropylene woofer cone with large-roll rubber surround
» innovative basket design
» frequency response: 23-400 Hz
» power range: 60-300 watts RMS (1,000 watts peak power)
» sensitivity: 93 dB
» progressive spider design
» top-mount depth: 5"
» sealed box volume: 1.25 cu. ft.
» ported box volume: 2.0 cu. ft.
Gives 93 dB per 1 Watt at a distance of 1 meter from Loudspeaker.
It is better sensitivity/effiency than a normal.
Many normal loudspeakers you buy, is like 88-90dB at 1 Watt.
001 W = 93 dB sound level
002 W = 96
004 W = 99
008 W =102
016 W =105 dB
032 W =108
064 W =111
128 W =114 dB
» polypropylene woofer cone with large-roll rubber surround
» innovative basket design
» frequency response: 23-400 Hz
» power range: 60-300 watts RMS (1,000 watts peak power)
» sensitivity: 93 dB
» progressive spider design
» top-mount depth: 5"
» sealed box volume: 1.25 cu. ft.
» ported box volume: 2.0 cu. ft.
Gives 93 dB per 1 Watt at a distance of 1 meter from Loudspeaker.
It is better sensitivity/effiency than a normal.
Many normal loudspeakers you buy, is like 88-90dB at 1 Watt.
001 W = 93 dB sound level
002 W = 96
004 W = 99
008 W =102
016 W =105 dB
032 W =108
064 W =111
128 W =114 dB
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