so wait..you have a five channel amp and a 4 channel? ...why is your sub hooked up to a 4 channel amp....

 

I'm confused as well. Why have you got a 4 channel amp and a 5 channel amp? What's an AU?

Hook your sub to the 5 channel amp (5 channel means 2 front, 2 back, an a dedicated sub channel where you can the tweak the low pass and level boost (depending on your model of course).

 

an AU is an astronomical unit. i think he meant HU......

 

hm....so...any new info nueok?

how bout gettin just a amp for the sub

 

OKAY.... SORRY!! The amp is 5 channel amp. THE SUB IS HOOKED UP TO THE 5 CHANNEL AMP!

sorry! It was a typo.

 

Let me claify everything. I have a Channel amp hooked up. and basically I only have the Channel 3, 4 , 5. hokked up. Wich is the 2 rears and 1 sub. The channel 1 and 2 is not hooked up yet ( which would be the front 2 speakers.) The front 2 speakers are still being powered by the factory amp.

I get hardly no bass response. My stock had better bass. Help me out please.

 

an AU is an astronomical unit. i think he meant HU......

Or gold... he coulda meant gold

What HU do you have?

 

Or gold... he coulda meant gold

What HU do you have?

Its nothing real special.
<-----------thats the HU the panasonic.

 

hmm....beats me...whats the power rating of your amp? and the power rating of the sub?

 

hmm....beats me...whats the power rating of your amp? and the power rating of the sub?

200watts rms to the sub, 275 watt rms for the sub.

 

no one.....? Why am i getting ****ty bass... I thought this stuff happens. My friend has 1 15" sub that used to hit hard. After he replaced his car batteries they dont bump any more... never figured out a fix... urrg some one help me out here please

 

is the ENTIRE amp 200watts RMS? or what? cause if the entire amp is 200RMS then you're gettin like, 40 watts goin to your bass...which isn't near enough....

 

Yeah, that's abit low for a 5 channel amp. Have something like 60w x 4 + 200w x 1 @ 4ohm. I think these numbers are RMS, number can straight from a D class Kenwood multichannel amp. Again don't know what model. Sorry.

 

Yeah, that's abit low for a 5 channel amp. Have something like 60w x 4 + 200w x 1 @ 4ohm. I think these numbers are RMS, number can straight from a D class Kenwood multichannel amp. Again don't know what model. Sorry.

yes you are almost there. Its MRV-F450. 850 Peak power. 50 x 4 and 200 x 1 RMS.

 

Make sure the sub is bridged on the amp right.... Left + ... Right - . Check that... Also take your 8 guage out.... pull on it real hard til it rips out from everywhere you ran it and run 4 gauge lol.
Make sure you have the sub hooked up right and the sub output on your deck turned up... thats all I can think of right now.

 

I used an 8 gauge wire because my amp is only 400 watt rms. So i figured that would be enough. I trunned it up but still nothing. My sub will start clipping if i turn it up to much.... urrg so mad... anyone got any other solutions? I could of hooked up the cap wrong? Any way to reset an amp??? anything??

 

i ran 4 gauge and i'm 600 watts RMS. but i dont' think thatw ould hinder it would it?

i still say something's funky about the amp..i'd still recommend a separate amp for the sub.

 

oh yea...if yuou could take some pictures of like, EVERYTHING...where wires connect everywhere, etc, i bet we might be able to help you better..

 

Are you sure you are using the Line out and not speaker out? Pic are v. helpful. Pics! pics! pics! Lol

 

8 gauge is fine for 400w rms. I have the same headunit, and my sub works great. But I have 1 amp dedicated to my sub. It's a 300w Infinity Kappa powered by a 400w Audiobahn Intake amp. First thing I would think is your sub isn't getting enough power. How many watts rms is sub sub rated at? I suggest a dedicated amp for your sub and a separate amp for front and rear speakers. It seems easier to get things how you want them if you do it like this.

 

8 gauge is fine for 400w rms. I have the same headunit, and my sub works great. But I have 1 amp dedicated to my sub. It's a 300w Infinity Kappa powered by a 400w Audiobahn Intake amp. First thing I would think is your sub isn't getting enough power. How many watts rms is sub sub rated at? I suggest a dedicated amp for your sub and a separate amp for front and rear speakers. It seems easier to get things how you want them if you do it like this.

Sub is at 275 RMS. Now how high do you have your volume with your head unit? I need to keep at around 15 now to get some decent sound off the sub (before i could keep it at 10). I found a better location to ground the wire and it got a little louder. Where are you guys grounding the wires???

I found a temp fix. Trun up the gain on the sub and turn down the gain in the cabin speakers... but I feel I shouldnt be needing to do that. on my other car everything is fine... urrg so mad... any more suggestions?

Next Ill try the amp in my other car(mono amp) and hook it up to my Tib and see what happens.

And about the pictures... my parents went on vacation and took my Digital camera so ill post some pics when they come back. Thanks for all your feedback!

 

Not sure where you stand on this now but I thought that I would jump in.....

First of all, lets start with the specs. The 200W RMS spec that you stated will be produced with a 4 ohm load. So check to make sure that your sub(s) is wired in that way. Most likely it is but I thought I would throw that out there.

The 200W figure is slightly misleading. That is the power at 14.4V The power at 12V is only 150W. Just keep that in mind when trying to determine what your amp is actually capable of doing.

Now for some other pointers.....

Check the amps Channel 5 settings. There may be something going on there. First I would make sure that you have the crossover point set right. It should be adjustable from 30-400Hz. If it is set to 30Hz, then that may be the source of your problem. Try playing with that.

Also check the INPUT CHANNEL setting as well....Make sure that it is set to the correct input channels you are using. The way you have the inputs wired will dictate how this setting should be. I would assume you have your SW preouts hooked to the Ch 5 inputs and you have the INPUT CHANNEL setting at 5. Double check that.

I think the best thing to do is rule out any configuration or wiring errors before we blame the amp.

You could also check your wiring for good connections. You can check for a BAD ground (or any bad connection for that matter) by using a DMM.

But please do keep in mind that there may be NOTHING wrong at all.......You idea of what the amp SHOULD produce and what it actually IS producing may be entirely different.

 

you really should find a single amp that produces slightly more RMS power than your RMS sub power...that way you have more to play with and won't have to worry about underpowering...like my sub is 500RMS, amp, 600RMS...works great.

 

Not sure where you stand on this now but I thought that I would jump in.....

First of all, lets start with the specs. The 200W RMS spec that you stated will be produced with a 4 ohm load. So check to make sure that your sub(s) is wired in that way. Most likely it is but I thought I would throw that out there.

The 200W figure is slightly misleading. That is the power at 14.4V The power at 12V is only 150W. Just keep that in mind when trying to determine what your amp is actually capable of doing.

Now for some other pointers.....

Check the amps Channel 5 settings. There may be something going on there. First I would make sure that you have the crossover point set right. It should be adjustable from 30-400Hz. If it is set to 30Hz, then that may be the source of your problem. Try playing with that.

Also check the INPUT CHANNEL setting as well....Make sure that it is set to the correct input channels you are using. The way you have the inputs wired will dictate how this setting should be. I would assume you have your SW preouts hooked to the Ch 5 inputs and you have the INPUT CHANNEL setting at 5. Double check that.

I think the best thing to do is rule out any configuration or wiring errors before we blame the amp.

You could also check your wiring for good connections. You can check for a BAD ground (or any bad connection for that matter) by using a DMM.

But please do keep in mind that there may be NOTHING wrong at all.......You idea of what the amp SHOULD produce and what it actually IS producing may be entirely different.

Hey -Viper-Thanks for the imput... I checked everything and double checked everything. The crossover fo the cabin speakers are at 100 Hz. The Sub ( channel 5) is at 120 Hz. It is hooked up to SW out put on the HU. The wiring is 100% correct. Nothing wrong there. My cap shows the voltage, and seems like its running 14 volts. When the cars off about 12 volts. Amp is on channel 5. If I dont seti it there then the front or the back wont work. Depending on what other setting I put it on. I was messing around and found that out. If you read my previous post before this one I said the bass is loud only if I turn the gain, bass eq, and Hz up to get good sound off it. ALSO I have to lower the gain on my cabin speakers. or else the highs would cover up the sub and the bass off my componets will be louder then the sub. Yeah this is where im at.... thanks for joining in :3_smile:

PS. wht a DMM?

 

you really should find a single amp that produces slightly more RMS power than your RMS sub power...that way you have more to play with and won't have to worry about underpowering...like my sub is 500RMS, amp, 600RMS...works great.

My RF Mono 150 RMS amp hits harder then my 200 RMS Alpine amp.... you see something seems wrong. Using the same sub.