ayssius

I replaced my Headunit, because indeed the output voltage was very low. The new one resolved a lot of the volume issues. I also changed the amp to a MB Quart ONX 1.1500D, The sub is much much louder now. Problem resolved, this sub now has a big smile on my face. Easily twice or perhaps three times the output now. Thank you everybody for all your suggestions and wisdom.

No, but it isn't a good thing. Depending on the application and equipment, it might not be a bad thing either. Any less than 100% on the sub amp, leads to all the other components overwhelming the subwoofer, even with the component amp at only 10% gain. The sub amp doesn't get warm even at 100% gain for a long period. It doesn't even really seem to be working that hard to be honest. I wouldn't be surprised to find that I'm not getting anywhere near the 500 watts its rated at. Although as far as your movement question I can't get a ruler up to it, but I would say easily 20mm of the 28mm rated xmax. On certain bass hits, low drops it defiantly clips, it does good for like a few seconds, nice and clean... then it loses it. I assume this is the lack of output from the amp. I have a semi-decent front stage, I have 2x Infinity Reference 6030cs in the front, 2 More in the back. They are powered by an Alpine MRP F-300, I ran 12 Gauge wire from the amp to all of them. The gain on the fronts are 30%, and the gain on the backs are 10%, they are HPF at 70hz. Not big bucks, but not factory either. Bass alone was never the plan, I wanted it to sound nice and good, my only beef was that the components can outdo the sub easy. I had to take it with my cell so apologize if the quality is poor. Also the sound will be terrible. This is literally as much power as my amp can push. Obviously I've seen ones with much more motion, but it seems modest enough. Video I never emailed. But you can be assured if I had, I would have followed your advice =) In previous stereo builds, I usually just have one 100watt amp powering some cheap POS sony sub, and I've had much more volume. That's not to imply the Q is any less than a spectacular sub, Just that past experiences have steered me wrong. I fully expected a 500W amp to at least get it going. ---- I have a MB Quart ONX 1.1500D on the way, and today I am going to put the DMM on it to see what the sub's impedance is. Thanks for all the feedback guys, appreciate it!

Low Pass Filter at 140hz, no Subsonic Filter on this amp. Gain 100%, Bass Boost 0%. Equilizer on the headunit is flat/off. Had to raise the LPF really high since my components really lack on the midbass, I tried it down at 60-70hz and it didn't really increase the power output anyhow. Also, Bass Boost seems like the obvious choice, but like we all know, turning that crap up even a little distorts the hell out of the output.

It never even occured to me that they may have shipped me the wrong type. Is there any easy way of checking the impedance of the coils? Use a dmm. Set it to impedance, with the system off put the leads in the ends off the speaker wires. This should be less than or equal to 2 ohms Thank you for this, like I said, I never even thought to check that the sub was the correct Impedance. I'm sure I have the voice coils wired right, but perhaps I was shipped the wrong sub type.

It is a fourth gen Honda Prelude, 1995. I installed sound matting in the trunk and the doors. Apologies, I really tried to include as much information as I could so you all could give some constructive feedback. What did I miss? I had recommendations towards Fi Audio, and the Q was suggested a few times. I had originally narrowed my choices down to the JL-10W7, JL-10W3v3, RE SSX19, Alpine Type X. I was told that it had a good balance between sounding good and still being able to get loud, and several youtube videos and forums indicated that this was indeed the case. I know loud and SQ are contradictory, my point wasn't that the sub didn't shake the whole neighborhood, that is fine, I didn't want that at all anyways. Its that the sub even turned all the way up is kinda pathetic at the moment. My mids and tweeters can almost entirely drown out the bass. I can talk over the sub just fine at full volume. I wasn't trying to insult this sub, it was my thought that it was defiantly something in my setup or expectations that was at fault. I'm not incredibly experienced, but I can learn from what people explain.

It never even occured to me that they may have shipped me the wrong type. Is there any easy way of checking the impedance of the coils?

Hello there audio enthusiasts! I have a single FiQ 10, stock options except it has the High QTS. I am running it in a sealed box with 0.7 cuft of total volume, minus the Q's 0.12cuft of displacement. Sub Box It is powered by a Alpine MRP-M500, It is a Dual 1 Q with the voice coils in series for 2 Ohms. Ok, this sub is beautiful. I really do like it aesthetically, and it is a terrific sounding sub. My only real complaint is that I can't seem to get any real oomph out of it. I realize it is a SQ, but i have had 90$ subwoofers at a fraction of the power pound louder. When I first installed the sub and amp, I couldn't even get any noise out of it hardly until the amp's gain was maxed. At top volume it does thump, and the bass range goes nice and low. The volume is just lacking, nothing shakes on the car at all hardly. Its audible out of the car, but only just. I'm fairly certain power is a non-issue. I have a 2000 watt wiring kit, 1 Gauge to a distro block, then four gauge to the amps. Also its worth noting that the sub really looks like its working hard. It uses its whole xmax (phrasing?), as in i mean to say that when its playing it covers its whole range of motion. Perhaps some subsonic noise? Am I stupidly underpowering this thing? or was I just expecting too much volume from a single sealed 10? Any input welcome. Thanks all! EDIT : I only mentioned the volume outside of the vehicle as a means of expressing volume level without knowing the actual decibels, not because I am trying to shake the block. The sub has also been running for about a month and a half, I was hoping also that breaking it in would help, but alas, still the same. Also I knew sealed would not be as loud. I really wanted something that had flat frequency response, but a little more boom than what I got. It looks like I am off to buy a more powerful amp!! Thanks for all the input guys!