Recent content by marcopolo

Hey, I cannot believe it! After two years - who would have thought... I wasn't visiting this forum for quite a while, so you can imagine how surprised I was when I got the e-mail notice about this thread! However... my system has changed a couple of times already, and no, I do not have the...

Hello! Which HU do you have? Perhaps you should check if your sub out is on... With my Pioneer DEH 5500MP you van switch between rear speakers / sub out, and then full or low pass signal. Depending on this setting, the menus change (when sub is on you can switch phase and turn sub on / off...

Sorry, my mistake!!! Don't know what I was thinking, guess it was just too late... You don't loose 3dB, but the volume lever is slightly lower. About polarity: The phase reverses when the sub is mounted inverted - say that every speaker in your car is connected properly -> pluses to pluses...

Inverted mounting of the sub doesn't affect sound quality. It just makes the sub less efficient - you'll loose -3dB when sub is mounted that way. So basically (I just noticed) everything above is correct). But remember that the phase is just the opposite of the phase when mounted regulary...

Yap, you should simply replace the alpine tweeter with the cdt audio tweeter. Having more than one pair of tweeters is almost never a good idea. It might seem a good idea, but results are in 99% very disapointing. It could work if both pair of tweeters were exactly the same, though (2xpair of...

I saw that my classical art picture didn't came out as well as i expected, but I hope you get the idea from the text. It's like a triangle without a peak at a top but a flat side that is shorter (a half of the bottom side) that the bottom. Sorry!!!

I'll be brief: 1. Is it smart to tune the ported box below the Fs of the sub? Is that even possible, is it good or bad? My sub is Fs=32 and I was wondering what would the outcome be if I tuned the box to 30Hz? 2. Is it O.K. if the box has two slated sides (the front - where the sub is, and the...

Sorry dude back! It WILL WORK and you should try it and see for yourself. . .. ... .... ..... See now?! Bye!

The easiest way to determine + and - on your stock wires is to connect some voltmeter to it. Then run sum tunes and connect the voltmeter to the wires. You'r display should show either +xx.xx Volts or -xx.xx Volts. Then just remember which color of the wire of the voltmeter (usualy there are...

Yes, alaxan is absolutely right, you difinately SHOULD use the passive crossover. I doubt that you can reach the same smooth transition from mids to tweets with the amp active crossovers + it's really not so difficult to damage the tweeters without using the passive crossover which is protecting...

Big thx, guys!

I din't think it is the alternator either... I'll send HU to the service this week, but I was just curious what could it be... Thanx 4 help anyway! P.S.: How is it in South Korea? My father was in Seoul a couple of years ago and came back totally impressed. Must try going there sometime, too...

Nope, it isnt the battery. I tought of that too, replaced the old battery with a new one and it happened to me again - battery empty. So, it sure isn't the battery. And if I disconnect the HU everything is ok, even though there are other things in the car that need constant power from the...

Here's the thing: When I installed my amp, the output wires from one amp chanel touched those from my Alpine HU's rear left speaker output and the internal amp stopped working - all I get is silence so I guessed I fried them. I didn't need internal amp anyway (the amps power everything) so I...

Sorry too, I didn't see you wrote stereo. So you MUSN'T wire your subs to 1Ohm if you're gonna connect them to the amp in bridge mode. You can if you hang them on @ 1Ohm if you use one chanel only. But then again, you would need 6 subs to use both chanels, which is nonsense. I guess it is best...