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#1
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Your help on small system design please
I'm trying to put a small low powered system together. I've got a 94
Astro.The stock speaker locations have the following dimensions.4" in the back pillars , 6.5 in the back clam doors and 51/4 in the front dash. I have a 10 inch dual voice coil sub in a sealed enclosureunder the rear bench seat.I had proposed using audiobahn coaxials in each stock location.I based this on the efficiency ratings of the speakers and the low cost.The sub is being driven by a 60 x 2 amp. The head unit puts out 50 x 4. I was going to maybe getting another small amp to run the 3rd set of coaxials. Or would I be better off just using two sets of coaxials 1 front and 1 back ? if yes would the 6.5 in the doors (obstructed by the seats) or the 4' in the back pillars be the better choice. Your opinions would be greatly appreciated. |
#2
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In article ,
"The Burwoods" wrote: I'm trying to put a small low powered system together. I've got a 94 Astro.The stock speaker locations have the following dimensions.4" in the back pillars , 6.5 in the back clam doors and 51/4 in the front dash. I have a 10 inch dual voice coil sub in a sealed enclosureunder the rear bench seat.I had proposed using audiobahn coaxials in each stock location.I based this on the efficiency ratings of the speakers and the low cost.The sub is being driven by a 60 x 2 amp. The head unit puts out 50 x 4. I was going to maybe getting another small amp to run the 3rd set of coaxials. Or would I be better off just using two sets of coaxials 1 front and 1 back ? if yes would the 6.5 in the doors (obstructed by the seats) or the 4' in the back pillars be the better choice. Your opinions would be greatly appreciated. I doubt the HU puts out 50W x 4 unless it's one of the extremely expensive ones ($600+) with an integrated power inverter and full-range class D output. 50W is a common bull**** number for bad automotive audio gear. A few older radio-only and EQ-only Rat Shacks managed 40W using autoformers. Any normal HU that provides a bridged output driven by the car's 14V will deliver about 18W into each 4 Ohm speaker. I would at least buy a small amp for the 6.5 inch speakers to make better use of them. Or maybe transfer the 60W x 2 amp to the 6.5 inch speakers and get a more powerful amp for the sub. If the HU is lying so much about the power output, you may find other deficiencies with it too. It may need to be replaced. |
#3
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"Kevin McMurtrie" wrote in message ... In article , "The Burwoods" wrote: I'm trying to put a small low powered system together. I've got a 94 Astro.The stock speaker locations have the following dimensions.4" in the back pillars , 6.5 in the back clam doors and 51/4 in the front dash. I have a 10 inch dual voice coil sub in a sealed enclosureunder the rear bench seat.I had proposed using audiobahn coaxials in each stock location.I based this on the efficiency ratings of the speakers and the low cost.The sub is being driven by a 60 x 2 amp. The head unit puts out 50 x 4. I was going to maybe getting another small amp to run the 3rd set of coaxials. Or would I be better off just using two sets of coaxials 1 front and 1 back ? if yes would the 6.5 in the doors (obstructed by the seats) or the 4' in the back pillars be the better choice. Your opinions would be greatly appreciated. I doubt the HU puts out 50W x 4 unless it's one of the extremely expensive ones ($600+) with an integrated power inverter and full-range class D output. 50W is a common bull**** number for bad automotive audio gear. Yeah, I'd agree. Besides it sounds like your system is becoming not small and not low powered. 3 pairs of speakers plus subwoofers is overkill. So are 2 10" drivers, but you've go those. Just get a small, good quality 4 channel amp to drive your front and rear pairs of speakers. If your HU doesn't have preamp outs, then scrap it. |
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