Hmmmm. Might have to go with another plan, then. But I checked a few reviews of the Hifonics amp, and Here's the scoop:

http://www.onlinecarstereo.com/CarAu...roductID=13118

Seems pretty positive!

Do you think I could get a 2-amp setup under the seat?

 

definitely no 2 amp setups under 1 seat.... 1 amp under either seat is probable....

 

Okay, I'm investigating the dimensions on some of these. So far, the HiFonics seems to be a VERY TIGHT fit (like I'm still not totally sure it'd fit in there, with my inexact measurements.

I'll also keep an eye out for a 2 amp setup. Thanks for your help. If you have any more advice, I'm all ears.

 

2 (or more) amps for the win. More granular control to your sound IMO.
you want the ohms (ohmage??) to match, or to be equal. It's bad if they don't. Stuff will fry.

Crossovers are filters that only let certain values of power/frequency thru - they let high noises go to the tweeters, but filter out the lows, and vice versa.

When I used to mess with this stuff, it was like 35Hz-150Hz was subs, 150Hz-2250mHz? mids and 2250mHz-22kHz? highs? Used to use big wire coils and stuff, it's probably digital now.... and don't hold me to those number values,,, I'm goin from foggy memory here

Back in the day the amps were more special if they were stable @ 2 ohms and 1ohm-stable was like a myth, and about the only 2ohm speakers I ever saw were Kickers, or MTX maybe. Amps had a 'bridge' button which basically halved the channels used but doubled the output, to give an example...You could then wire 2x 4-ohm speakers in parallel to create a 2-ohm load and run the amp at higher watts output.

I've been out of stereo hifi stuff for an eon, I'm the last dude that should be commenting... but if you want to do this DIY, IMO you should google Ohms, series and parallel wiring, etc., and get knowledge of that stuff, it will help you a 100 times over even just knowing about the general theroies.

Good luck bro - infinity is nice choice. I had a '97 turbo eclipse with a stock full infinity system and it rocked.

- Saylor

 

yeah, for sure. I definitely need to learn more about this. I'm still looking crap up and stuff, and learning as I go.

One quick question about the whole amp thing...I'm still having trouble figuring out where to put one, since I need pretty much all the space I can get. Here's the question:

What if I were to pop the back seat cushions out of the car and installed an amp under there? Then I could stick the seat bottoms back in, over the amp, and no sweat...right?

Is there any space under those cushions? Or is it just a gas tank...?

Would the amp get too hot? And here 's total long shot...Could the amp get so hot that it could create a problem with the gasoline? Seems silly...but...

 

Anyone?

 

I HIGHLY doubt you can mount under the rear seat... 0 room under there.... the heat would be an issue, but not with the gas... main problem is space under the seats, like I said, 0 space....

maybe under the rear floor... alot of people are doing that...

www.the12volt.com
www.carstereo.com

those 2 sites will give alot of info

 

You mean where the spare tire is, right? I suppose I could fit one in there easily...

Someone bought that hiFonics on eBay, so I need to keep my eyes peeled. Thanks for the help!

 

yep.... where the spare is... right beside that

 

Thanks alot! You've been super helpful with a total newbie.

I asked you about this amp last week:

http://cgi.ebay.com/HIFONICS-ZX8000-...QQcmdZViewItem

It's back on eBay. I asked the seller if this amp would be capable of powering my 4 door speakers @ 2 ohms and my sub @ 4 ohms simultaneously. He or she said it would be no problem. What do you think, and how can you tell? If so, I'll probably get this. I've read LOTS of good things about these, and te dimensions ar eon the small side (smallest I've found with these capabilities.

Once again, thanks so much!

 

This might help as well:

http://www.sonicelectronix.com/item_368.html

 

ZX8000-High Power
4 x 50 Watts + 1 x 200 Watts @ 4 Ohms
4 x 100 Watts + 1 x 300Watts @ 2 Ohms

^^ that's how you can tell it will do it...the 4 channels should all be ran at the same impedance(ohms)... the bottom line there tells you what the 4 channels will do at 2 ohm and it tells you what the sub channel will do at 2 ohm... since your speakers are 2 ohm, you read that it will give them 100 watts per channel (if your speakers were 4 ohm each, they'd only get 50watts per channel).... then you look at your sub channel seperately... since you'll be running a 4ohm SVC sub, you read the 4ohm reading (200x1 @ 4ohm)... if your sub were SVC 2ohm (or DVC 4ohm) then you'd be running the amp at 2ohms and it would put out 300x1@ 2ohm...

 

Cool. So it will be fine, right?

Also, you're totally right about the back seat thing. Just went in and pulled it up...

No space at ALL.

So I went to the trunk and looked at the spare tire area...No space either! Unless I too out the spare. Man, this will be a tight fit either way.

 

So the HiFonics amp can seperately power my speakers at 2 ohms and my sub at 4 ohms? Nice...

 

Arc Audio makes an amp that I have measured out, and it fits underneath my seat, so problem solved. Here's the amp:

http://www.arcaudio.com/arc-05/amplifiers/xxk_5150.htm

The big problem is that it's expensive. but I've heard that they are great for SQ...

Do you have any opinions on this? Thanks SOOOOOOO MUCH!

By the way, I've been searching alot on here, and your posts are ubiquitous. How did you learn so much about this subject, TC Guy?

 

countless hours spent studying, playing, trial and error, listening.. you know.... I love car audio so that drove me to learn as much as I could...

on that Arc audio amp, the sub channel is 190x1@ 2ohm, which means running it at 4ohm(because your sub is 4 ohm) will probably only get you about 95 watts to your sub which definitely won't be enough... the Hifonics amp will power your system perfectly...

yet another term you should know, "stable"... when an amp is "stable" down to a certain ohm, that means you can run it at any ohm as long as it's not below the "stable" point... but, as the resistance(ohm) increases, the power decreases... example: a 1000watt mono amp stable at 1ohm can run 1000x1 @ 1ohm.... if your sub(s)' voice coils will only allow you to wire it down to 2 ohm mono, then you'll not get the 1000 watts, you'll probably get 500x1 @ 2ohm (most of the time, doubling the impedance will half the power and halfing the impedance will double the power)...

 

Werd.

I just really gotta figure out where to put that hifonics amp, then. Thanks for the advice.

I guess I could ditch the spare tire? I kind of like having it, though.....

 

is there not room beside it where the foam is??

 

There is not, at least as far as I can tell. I imagine that the TC has more room, as it's a sedan. I got the XA because I've always had a fondness for tiny cars, but in this ONE case, it's a drag!

 

hehe... the xA is closer to a sedan than the tC... the tC is a 3-door hatchback... the xA is a 5-door hatchback...technically, a sedan is 4-door with a trunk....but I know what you're saying...