LOC = bass. No LOC = poo. Help? *cry* p.s. - long story

[Roasted 10+ year member]

I've been a long time poster over on caraudioforum, and I've been in car audio for about 2-3 years now. I've had a lot of strange problems happen to my setup, however recently I've got one that has me completely lost. Maybe you folks can shed some light.

Story:

I had a Pioneer DEH-1500. Somehow the preouts blew out of it, so I went to Circuit City and got a line output converter as recommended by other members of the forums on CAF. I rigged up the LOC and magically everything was working again and I was happy. Recently I went ahead and bought a new deck, a JVC G710 or something or another. Anyway, my output SUCKED. My sub was hitting like I was running it off of the head unit. So I was lost. But I went back to Circuit City and saw I could get the 4700 for 10 bucks cheaper than the JVC. So I figured the problem was with the JVC, took it back, got the 4700 and saved myself a whole 10 dollars and 60 cents for a better deck (according to my own opinion + other folks input).

By the way, I am running a Tsunami DB1100 @ 2 ohm for 650 RMS on an RE SE 15, 2.2 cube sealed.

I came home with the Pioneer 4700, rigged it up, etc. Excitedly turned my car on, saw the radio light up................................................. same deal, sounds like the sub is running off of the head unit. Confused, I started weighing out the situation. Besides changing the deck, which should NOT of drastically changed my output as it did, I figured the only other possibility was the line output converter, I just figured that maybe the LOC just boosted the signal THAT much and that's what gave me the additional output.

But then I started thinking logically. Now, if the way my setup is now is normal, then I can guarantee you there are a LOT of pissed off folks out there right now who are running setups in the 600 watt range, because I'm getting about 2 mm of movement in the sub, and I know **** well ANYBODY who would spend 400+ dollars on a decent amp and nice sub that they would be greatly disappointed in what they heard. So I ruled out the fact that there are no problems with my setup and I'm just not used to the normal, but lower, output of the setup.

So I'm here lost. I don't know what to do. Everything is plugged in. I retuned everything on the amp, in fact for kicks I turned the gain up 100% of the way on the amp and it sounds about 1/10 of what it used to, but before I had my gain 50% of the way and had 300x more power. For kicks, I plugged in the line output converter again, plugged in the RCAs, etc, BOOM the sub started moving pretty nicely. Plugged everything into the deck.... blahhhhhhhhhhhhhh...... back to 2 mm of travel.

To wrap it all up: The 650 watts my 15 inch RE SE is seeing sounds like it's being fed 50 watts. Using an LOC completely changes the output to where it should be, but I shouldn't HAVE to use an LOC.

This is one of those "gotta find the answer before I go f*cking nuts" kind of situations. I could easily hook up the LOC and roll with that, but I just want to figure out what the problem is.

ANNNNNNNNNY insight folks? Thanks in advance.

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[theCybe 5,000+ posts]

So, maybe the problem is with the RCAs //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[cstabler 10+ year member]

try the High level inputs for kicks and giggles

your amp might be broke.

 

[Roasted 10+ year member]

Alright, question.

1. HOW can my amp be broken if it works perfectly with the line output converter?

2. HOW can my RCA's be bad if it works perfectly with the line output converter?

 

[djman37 5,000+ posts]

So, line out RCA's off HU don't give boom?

Assuming you've checked your deck and made sure the sub output is turned on, swap out the RCA patch cables for another pair unless the RCAs coming out of the amp haven't changed, you just change what is plugged into them.

1. plug another source in using current RCAs to eliminate RCAs.

2. check HU outputs to make sure all is set properly.

3. keep the LOC for the sub.

 

[Roasted 10+ year member]

With the line output converter, it goes boom, acts like it should. So I KNOW all of my components work (rcas, sub, amp, etc).

The head unit does not have a sub level control as far as I know, because I remember comparing the 4700 and 6700. The ONLY things the 6700 had that the 4700 didn't was the sub level control and the graphic display.... and I have the 4700...

I'd be happy to keep the LOC for the sub. But there's no reason I should on a new deck.

 

[djman37 5,000+ posts]

i agree.

Your new deck doesn't have a sub out option though? I've heard some people say their decks have a rear out/sub choice. good luck

 

[djman37 5,000+ posts]

i just looked up the specs, it looks like 2 sets of 2.2v outputs. FADER maybe? or FIE (Front Image Enhancer) with 3 Modes might make rears lower levels.

My vote is some setting on that deck.

 

[Roasted 10+ year member]

i just looked up the specs, it looks like 2 sets of 2.2v outputs. FADER maybe? or FIE (Front Image Enhancer) with 3 Modes might make rears lower levels.
My vote is some setting on that deck.

I agree. But I've messed around with it continuously and I can't seem to get it hammered down.

The FIE is at 0 now, I read that when you use the FIE you take away from the rear's power. Should it be at 0?

Fader is at 0 as well.

 

[Roasted 10+ year member]

So... does anybody have any idea what I can do? Perhaps some home-made way to test everything myself and make sure the head unit is working properly?

I'm going to put the LOC in tomorrow morning, just so I can actually have some bass in the setup. But I still want to find the answer to this...

 

[cjjackson85 5,000+ posts]

Too long, didn't bother reading...

 

[Roasted 10+ year member]

Too long, didn't bother reading...

Then read the title for f*cks sake...

 

[cjjackson85 5,000+ posts]

The title was also too long, didn't bother reading that either...

 

[Roasted 10+ year member]

The title was also too long, didn't bother reading that either...

Help me out here, I'm completely lost.

Are you sincerely trying to pull a funny joke but crashing and burning at it, or are you just that absent minded that you have no idea you are speaking like a moron?

 

[cjjackson85 5,000+ posts]

Guilty of all 3...