Changing amps

[Andy4639]

What are the differances between 4 8 ohms speakers and how do I know which setting to put the amp on? I have a 4 channel I want to use and take out the old one. The old one is a 4 channel also but less power.
If I hook it up and don't change anything how will I know if it's right are not? I don't want to tear the speakers out of the truck to findout which they are.

[Zane M]

Are the speakers factory or aftermarket? 99.9% of aftermarket speakers installed are 4 ohm.

[Andy4639]

They are all aftermarket.

[Andy4639]

I'll post some pictures later tonight. Going to swap it out and see how it does.

[jimmydean]

If you hook it up the same, it should be fine. As long as the speaker rating of the amps is the same (or the new on is better) you should be fine.

[Andy4639]

Well it works fine I guess. I need to get some pictures of the hookups so I can ask some tech ?'s about the differant settings and see which ones I need to use.

[Andy4639]

This is the amp I took out.




This is what I put in.



Where should the switches be for the best sound?

[Andy4639]

Drove the truck today. Didn't notice much differance in quality of sound but it was louder.
Didn't have to turn the volume up to 50 to hear it.

[jimmydean]

Can't see your images for the amp you put in.

[Andy4639]

Originally Posted by jimmydean

Can't see your images for the amp you put in.

Don't know why they are photobucket public. They show up fine for me and I'm at work.

[Andy4639]

I did a google search on how to setup the amp. It sounds pretty good.

[motornut]

if you meter the speaker impediance,it should read slightly less then it is, or marked

[jimmydean]

Depending on what speakers you have connected to what channels, you will want to switch at least one channel to "FULL", looks like both pairs are set to "HPF" for high pass filter meaning everything bellow a certain frequency is being filtered out before coming out the speaker (amp is more efficient when using filters).

If all the speakers are the same size, try one switch on full, leave one on HPF and see what it sounds like, then switch, try, and see, then try FULL for all 4 channels.

If you have a large set on one and a smaller set on another, but the larger set on FULL and leave the smaller one on HPF. That way you get the full range of frequencies in the larger speakers and filter out the bass from he smaller speakers to keep them from sounding like ass.

Here is a quick amp setup howto:
Put the filter switch in FULL for both channels
Turn the bass boost off
Turn the input level down
Turn the crossover frequency to half
Play some music you like a good level (but not above 3/4 max volume)

Adjust one pair at a time.
Adjust the gain until the volume is where you want it with minimal distortion.
Use the crossover frequency to adjust the filter
Use the bass boost if you like that

The trick is a combination of gain, volume, filter, and boost to get the best sound out of what you have. If you need to use more than 3/4 gain or 3/4 volume to reach your listening level, your amp is underrated for the speakers you have, or you just need more power and speakers.

[Andy4639]

I have 2 10" subs that are cheap Wal Mart brand "Road Gear".
Then I have 3 ways under the seat JVC I think.
I know the 2 subs are sorry but all I want is a nice sounding system not a high thumping one. I plan to upgrade the 10" sometime after the new year with some better ones.




Under the seat.

[bk2life]

if it sounds good then your right on keep truckin!

personally, a better quality amp/speakers/head unit will completely change the way it sounds. if you are into or need that type of thing.

[Billett]

unfortunately nice sounding is usually more expensive than thumping, but I get what you mean.

Follow jimmydeans advice. It's all trial and error if you've never done it before, and even if you have, you need to get it dialed in.

[Andy4639]

The amp was free and so I decided to use it. I'm not really into the loud music just want to hear my oldies nicely when riding down the road, planning to do the HRPT next June and want the tunes ready for the 3000 mile round trip.

[Billett]

That's awesome good luck with it! I'd love to go some day..

The main thing is, as long as you're happy with how it sounds no one else's opinion matters. If it still doesn't seem quite right, we can definitely try to help.

[Andy4639]

At some point I want to get some better subs but not going for really big bass. I have the old amp may hook it up to the front speakers and see how it sounds. I have a very old unit for them now but it's like 100 watts max.

[bk2life]

Originally Posted by Andy4639

planning to do the HRPT next June .

thats awesome!! i really got to do that one of these years...

[Andy4639]

Checkout my sig it has all the info on the C-10 site.

[jimmydean]

LPF (low pass filter) on the Subs, FULL on the 6x9's will likely give you the best sound without trying to put too much bass in the 6x9's or try to use the subs as tweeters in HPF mode.

[Andy4639]

OK going to set them with this and see.