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About Qwiz

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  1. Could damping the front doors with the wrong damping material or a material which boosts sound reflections more, affect the bass response of any subwoofer placed in the trunk of a car?
  2. I have gone and changed the whole thing. Before I had it: Front System amp under the passenger seat; Bass amp on the left back seat. Is it important to mention those back seats have no insulation, therr's just some cardboard under the coverage lol, while in my other car there was bare metal? Now I have brought the 2 amps under the trunks carpet, rewired everything again. Changed the Bass amp to Mosconi One 240.2, sub still pops but now it's quieter on turn On or Off. With thr JL amp was more noticeable. So now with this other amp and sub in the t
  3. ok so I disconnected the remote cable from the Front system but only on end of the Mosconi amp, I wasn't in the mood of disconnecting the wire from the back of HU, don't think it matters as long as it doesn't ground to something. I then set back the switch to REM sub still pops at radio on and radio off too. There is this anomaly to mention like why when the Switch is on DC Offset the sound is improved but still not ideal? I moved the sub in the trunk and it didn t turn out to be a good idea. Everytime it goes in the trunk the freqs 55hz-70hz are VERY silent. You liter
  4. But if that fixes it, I would need a relay for the mosconi to be also on right?
  5. I don't have any relay. DO I NEED ONE? Is there a specific post for this? Are the remote wires causing the sub to pip every time Radio goes on or OFF. The 2 remote wires coming from the 2 amps are both crimped and connected to the remote wire of the PRS. I initially thought maybe the switch DC Offset represented Remote, this being a factory issue, just throwin that out there. The bass is much much clearer I don't know if it's ideal, I need more time testing. The sub pops everytime I turn the Radio on and this happens to the sub only, regardless of the switch
  6. Warning. You are not gonna believe this shit. It's clear now. I hope this doesn't turn out to be another illusion tomorrow. I did something today. I flipped a switch on that amp. You wouldn't guess which one. That did the magic in the end. Heard clean bass from the port. Every tune seems to sound exactly as I remember it. I now get the chest pounding upper bass and clean lower bass. All for a goddamn switch. I would presume there is something wrong with that part of the power supply section of the amp or something. Because what I did shouldn't have had such
  7. In my previous car I remember feeling the bass more than hearing it, remember hair on the head and arms vibrating, water in the can or in the bottle vibrating. On the other hand, on this other car, although I have almost double the power of the other system, there seems to only be loud and disturbing. Not that disturbing but why can I not FEEL the bass here? I don't feel hair vibrating, it's only a little bit in my back, a little vibration, but nothing great. What does this mean does anyone have an idea? Why does body hair not vibrate although a lot of air is moving inside the car,
  8. Seems no matter how you position the box in the trunk, the same output is presented. I have tested it by puttin the box in the tire well firing every possible direction, it still outputs the same disturbing low freqs. I just want to set that car on fire. The Front System is a 16,5cm component one. When I set that to play the lows only, they output such a clean and enjoyable bass. It's only when the sub comes into play it ruins everything. When the sub is on the back seat it seems better but it's still not enough, it still seems it plays muddy on some songs so... what I thought yest
  9. So these are the results. Sub on back seat OK. Sub back in the trunk not OK. If the reason is not the cars acoustics, then why is this happening? You're telling me I still have muddy sloppy bass all the time, only when the sub is on the back seat it masks the impression of a clean output or what?
  10. Video of disassembled trunk https://www.youtube.com/watch?v=_udVX2JjOpo Video of the best sub location with satisfying bass output no cancellations https://www.youtube.com/watch?v=iLMICWKFl8Y In the video I have Front HPF 100Hz 12db, I found better settings meanwhile, Front HPF 63Hz 12db. Those door speaker are not cheapos, at higher volume they generate quite some pressure in the legs feel them vibrating. Once I move the sub in the trunk everything shatters to pieces. It sounds so horrific when it's in the trunk lol. Let me make this clear again. Once I move it to
  11. That area under the carpet is roughly 2 cubic feet maybe more. I am sorry after recalculating it it's maybe closer to 4 cubic feet, unlike I stated in the pic, it's pretty big basically. I also really want to think what you're thinking, I wish this so hard. If I had one of you guys near and I knew you have heart for fellow bass heads, I would have payed you at least 200 euros just to diagnose and tell what is going on. Just tell me like:" ok so this was it..." Bass output is ok as long as that goddamn box is not located in the trunk. On the back seat seems f
  12. About that box with those subs why do they spell disaster, was that the aim of its designers? Why does it sound so badin comparison to the other sub box? I think I know what you are trying to explain, you are trying to explain the Impedance vs. the DC Resistance. But that still doesn't explain why it's sounding bad. The tire well in that video is not that hollow or deep like mine. On my car, once I take the plastic cover from the trunk, I can see the tire well, but cannot access it fully yet, it's starting to deepen itself 10-15cm down from the base height of the plastic cover and only then th
  13. It's the only thing left in the equation, that hollow space. I don't have a custom box for that tire well there and I don't intend putting anything in that hole. I think I may need to somehow seal that location with some custom thick mdf plates and need to think of a good rubber isolation or something. The trunk is like a second sub box for the passengers isn't it? Like how the car is a third sub box for someone standing outside. That is why I am thinking that that hollow space is the culprit. It's ruining the bass output as it makes its way to the passenger side. Quick
  14. I don't have. I did test the system with another amp another box and another Radio results were the same. This led me to believe that there was no problem with the signal from Radio up to the outputs of the amp, led me to believe it's the car acoustics, namely its shape. Under the trunks carpet there is a hollow area for the spare tire. This car version has instead of the physical spare tire a small flat tire kit, so that the area under the carpet is very hollow. I still need to eliminate the possibility that the whole signal is clean from source to output. I think I will buy an O-
  15. Everything sounds the same even with this new sub. All of the subs I had sounded way better when they were lying on the back seat. It seems that the trunk of this car is the culprit. So I am done with car audio in this car. Case closed.
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