jalat

iTrader: (6)

System consists of the following:

• 2010 and up Camaro drivers side large stealth enclosure from Subthump
• Knukonceptz 4AWG wiring and interconnects and speaker wire
• MTX RE-Q
• Subthump T-Harness (used so that we DO NOT splice into the factory wiring)
• 12" Fi Q (dual 2 ohm wired to 4 ohms w/ all options and high qts)
• ZED Audio Kronos bridged @ 4 ohm (1000rms)

There are a couple things that seem to be off. For one, we are using the factory headunit and thought that the RE-Q would be perfect because of the bass restoration, and the fact that the Kronos needs unbalanced grounded preouts (as said by Steve from ZED). Now, due to the fact we havent installed any bass blockers on the factory BA system, we made the bass on the headunit to -5, mid @ -1 and treble to +1. What baffles me is the fact that the gains on the MTX RE-Q as well as the Kronos have to be set all the way up before any sound comes out of the subwoofer. Now the Kronos has 2 built in clipping indicators so I know for a fact that I am not clipping the subwoofer. I read that the RE-Q is supposed to boost the lower frequencies of the stock system so that there is no need to have cranked gains and such, or lose preout voltage on the RCAs....

So my question is, why must we have the gains so high on both the MTX RE-Q and Kronos to obtain proper sound?

My next issues has to do with the amount of light dimming on the interior lights as well as the amplifier. 4AWG wiring is used with a 100A fuse for power (at about 6 feet in length) and my ground cable is about 4 feet in length. The battery is in the trunk, and whats looks to be about 2AWG wiring is used for factory ground and alternator charging wire. Whenever the system is turned up, there is a significant amount of dimming going on with the interior lights (dash, dome light, etc.) but here is the catch..... The amp at near full tilt is getting 13V at the lowest, so it doesn't seem like there is a voltage issue what so ever.

So my question is, If my voltage is alright to the amplifier and batt, why is there such a significant amount of dimming?



Overall, I am very impressed with this system and would just like to clean up these issues so the owner can enjoy his finished system.

Thanks in advance,
Mike

kevmurray

Mike, probably the factory output is a balanced line out and not at all what the RE-Q expects. Do the factory speakers have amps built in?

I don't mean to be a jerk and point out the obvious, but have you measured the voltage at the fuse panel for the interior lights etc.? The dimming is because they are losing voltage, not the amp. I know you were checking the amp voltage to see if it was the cause, but the next step is to track down the bottle neck. It's possible your new harness is jacking the system ground for the interior some how. If the voltage to the fuse panel is solid then measure the ground voltage with respect to the charging system ground. They may not be the same.

jalat

iTrader: (6)

There is only one amp, in the trunk of the Camaro. It has 6V DC floating voltage. The Kronos needs unbalanced, which is why we choose the RE-Q unit

As far as the voltage at the fuse panel, I have yet to check.

RomanticMoments

Is the RE-Q set up to take in a balanced signal? I'm not familiar with it's specs, to be honest, so I'm wondering if the RE-Q needs an unbalanced input as well

kevmurray

I think I wasn't clear. If there is a factory amp then the output of the deck is probably a balanced line out. As in not referenced to ground and very low voltage. The RE-Q expects a speaker level voltage which is many orders higher. I could be wrong, I'm not familiar with the new camaro setup. If by "BA" you mean Bose Audio then I would be willing to bet it's like the Bose system in my old maxima which had balanced line outs.
As you stated, the Kronos needs an unbalanced line input which the RE-Q is good for. So there are no problems after the RE-Q, only before it. If I'm right of course. Which I always am of course.

avidedtr

iTrader: (11)

2010 SS camaro with a Audison Bitone was very successful. Only problem was the volume could only be max set to 35.

Dimming was the same with 4 gauge right off the batt in the rear of the trunk.
Amp was a pig Arc Audio A/B class 1300+rms on a Morel Ultimo.

jalat

iTrader: (6)

BA = Boston Acoustic

I'm not sure about the whole idea of whether or not the RE-Q will take balanced inputs or not. Thats something I will look into

Good to know.

So how did you go about the dimming issue? I was thinking about trying a capacitor, just for the fact it will give a much quicker burst of current than a batt would.

avidedtr

iTrader: (11)

contact icebird88 he did the install - I only setup the shitone.

jalat

iTrader: (6)

LOL alright. Thanks

Dukk

1000w RMS is going to dim your lights.

I would grab the signal for the ReQ right at the sub, not before the amp. It'll be subject to the contouring of the factory amp but maybe the ReQ can correct for it.