posted
I recently picked up an entire new audio system to pick up on my highs, since my recently installed sub has been making it hard to hear anything else. Anyway, I went to the local "source" for car audio (bought my sub, amp, and deck there), and the guy sold me a 4 channel amp, a pair of back speakers, a pair of side speakers, and a pair of tweeters. Now that I've got them installed, they are clipping, and eventually cutting out, at very low volumes. I'm thinking it might be something to do with not enough power being put through them.
- The amp is a 4 channel Alpine amp. On the box, it says 50 watts RMS x 4 at 2 Ohms. - The side speakers are 40 watts RMS. They have an impedence of 2 Ohms. - The tweeters are 50 watts RMS, also at 2 Ohms. - The back speakers are 100 watts RMS, 2 Ohms as well.
Now, I'm wondering, is it possible that the speakers aren't getting enough power, specifically, the back speakers? I'm pretty sure the guy told me the amp would run them all, but it doesn't make sense to me that an amp that puts out 50 watts RMS per channel can somehow power back speakers that are asking for 100.
The front speakers and tweeters are wired together in series in the doors (one speaker wire from the amp goes to them, and it splits off to the tweeter and side speaker, respectively). Each pair (meaning one tweeter and one regular side speaker) has its own channel.
The back speakers each have their own dedicated channels, with nothing else attached to them.
Through experimenting with the settings on the amp, it seems that turning the crossover knob all the way up (eliminating lows) and keeping the speakers on high pass stops them from cutting out earlier. I have not messed around with the gain settings.
posted
what kind of car is this? sounds like you need to work on the sub area, tone it down?
-------------------- 2006 IDBL 2ND PLACE WORLD FINALS 2008 World Records TBA LiL Scrappy The Louddest Honda 600 in The World! www.quadaudio.net Posts: 1529 | From: Palm Springs,CA | Registered: May 2002
| IP: Logged |
posted
So your saying that the pair is a 2 ohm load. The amp should be fine as long as you run a side a tweeter to one channel and so on. with the backs each on there own. the fronts will be a little bit louder but that should be fine with a gain adjust. I don't see very many midrange speakers that are 2 ohms by them selves. How are the grounds on the amp and how big is the sub amp do you have a voltmeter to see what the voltage is at the little amp.
-------------------- BLAKES Posts: 202 | From: Harlan, IA | Registered: Jan 2006
| IP: Logged |
Printer-friendly view of this topic