Leaderboard

Its the best i could do with Microsoft Paint...but here is the "official" system diagram for my Lexus ISF. I don't think i missed anything. I also dropped my x-over frequencies to give a better idea of what i did. FYI: The PBR 300x4 is running my rear door speakers by itself and has a switch to turn them OFF for better imaging. I can turn them on any time but i prefer to roll with JUST the front stage on. of course, if you want to see how i got all of this in my car, click this link and prepare for about a thousand pictures. http://www.stevemeadedesigns.com/board/topic/142076-ubllexus-is-f-sound-system-install-mechman-270a-alternator-installed-page-5/

thank you Mechman alternators for a very beautiful product!!!

One minor problem here. Lets assume a 300 Amp alt at 14V = 4200 watts output. Assume 80% efficiency to convert the energy: so input to the electric motor = 5250 watts. So at 110V that would be 48 amps (not gonna happen). You would need a 30 Amp 220V setup with a 7 horsepower motor. Cool idea though

The RCA output voltage will not drop with B+ voltage dropping. The RCA outputs are fed from a mini-amplifier inside the headunit that has feedback. Think of it as regulated

my SMD is not on 3500w. There is 2 T2500.1bd on it.....look at the diagram

This is people's favorite? Damn, guess I've been around too long, I still like the glass eye..... Very cool video though Steve, favorite comment so far are and

i found a few comments that weren't very nice, in fact i would love to smack the teeth out of one guys jaw.......but that is to be expected on liveleak i guess. I will do my best to keep my mouth shut. I have enough cowards to deal with on youtube but im not trying to get into it over there. Its a lot more good comments then bad. Im just gonna stop reading all together before i find one that really pisses me off. Can't let them ruin my day.

Yeah I got down till "ridiculous unnecessary amounts of bass" and stopped reading...

yessir....i brought it to the top because it is a cool enough topic to be brought back up. I think its great

i prefer to start from the beginning with power, source, processors, amps then drivers....

nope, same frequency as the woofer. I was going to BP them but my Sensai (not Sensai from here) says no. I was also gonna do a center channel. He said no. What Terry Soohoo says, i do. Bottom line. The rear speakers were smearing the image, so those were put on a switch, which i haven't switched back on since we did our EQ'ing and time alignment. Its LOVELY.....and isn't even done yet. I have a session with RF on November 7th (they are flying out) with a 5 mic array. Then i will go back to Terry again to see if he thinks it needs anything else.... and it should be REAL lovely by then.

I will find out for myself as soon as I get my truck up and running. Not really a big deal for me building a daily system, but for guys chasing a number, this is a cheap .46db in the case of this test.

TTT.....how the hell did i miss this? that is f##king awesome I want one!

RCA voltage will have no affect on efficency. Every amplifier reguardless of class has some internal gain. Lets say than an amplifier puts out 50 Vac RMS before clipping. Lets also say that the internal gain on this amplifier is 10. That means that it will take 5Vac of input to drive the amplifier to clippling. ( 5Vac X gain of 10 = 50Vac ) The "gain" control on the amplifier is to "gain up" whatever signal is coming in, up to the 5Vac that is required to drive the amplifier to clipping. Example A: There is only 1Vac input to the amp. We adjust the external gain control to have a gain of 5 to drive the amp to clipping. So the 1Vac coming in goes through the "preamp section" of the amplifier where the gain control gains it up to 5Vac. The signal then goes to the "amplifier" section of the amplifier where it internal gain is 10 so now our amplifier puts out 50Vac. The gain pot on this amp is probably 1/2 way up or so Example B: There is 5Vac input to the amp. We adjust the external gain control to have a gain of 1 to drive the amp to clipping. So the 5Vac coming in goes through the "preamp section" of the amplifier where the gain control does nothing so the signal is still 5Vac. The signal then goes to the "amplifier" section of the amplifier where it internal gain is 10 so now our amplifier puts out 50Vac. The gain pot on this amp is all the way down. Same result, no affect on efficency or power output. The only possible difference between example A and example B would be that B could potentially have a slightly "cleaner" signal since the signal would have less chance of picking up alternator whine or other noises as the signal travels from source unit to amplifier.

Saw the title and thought of this

Ermahhgerrrrd! *Edit-You sure are keepin Tony busy!!!

Cool cant wait til this airs.

Was it for the show TIME WARP ? that would be bad ass ...!