gckless Posted October 3, 2014 Author Report Posted October 3, 2014 15-80Hz sweep. Pay attention to the top blue lines, those were the peaks, not the red bars. Sealed, at headrest: Driver's door open, in passenger kick: Knew I heard that rolloff. Seems to fall flat above 43Hz or so, probably a product of small enclosure and vehicle. Also still trying to learn the limits. Was playing decaf pretty decently at full tilt for about a minute at a time, then put on a couple tracks I have verified clean in Audacity that are damn loud and started smelling coil. Cap was hot. I'm even at -1 on the sub level (set gain at 0). Talking with Murphy and TFade, might be low electrical even though I was above 13.8V the whole time, might also be the small box. Could be fighting with box resonance. "Clipping" is the biggest forum boner now. It's like witchcraft... it automatically explains just about everything people don't understand. My build log: http://www.stevemeadedesigns.com/board/topic/200295-gckless-2011-chevrolet-impala/ High resolution photos: Gilbert Kless Photography
Karkov Posted October 3, 2014 Report Posted October 3, 2014 15-80Hz sweep. Pay attention to the top blue lines, those were the peaks, not the red bars. Sealed, at headrest: Driver's door open, in passenger kick: Knew I heard that rolloff. Seems to fall flat above 43Hz or so, probably a product of small enclosure and vehicle. Also still trying to learn the limits. Was playing decaf pretty decently at full tilt for about a minute at a time, then put on a couple tracks I have verified clean in Audacity that are damn loud and started smelling coil. Cap was hot. I'm even at -1 on the sub level (set gain at 0). Talking with Murphy and TFade, might be low electrical even though I was above 13.8V the whole time, might also be the small box. Could be fighting with box resonance. Interesting, tuned to whatever you find 2007 Chevy Tahoe (SOLD) 12 ~ FI Audio X series 10" w/BP option 2 ~ DC Audio 5.0K @0.67 3 ~ DC Audio 5.0K @1.0 2 ~ PPI 3 way sets (not installed yet) 1 ~ RF T400-4, 1 ~ RF T600-2, 1 ~ RF T600-4 4 ~ CT Sounds 5.25" Strato comps (rear fill only) 1 ~ XS Power D4800 1 ~ XS Power D3400 8 ~ XS Power XP3000 160 stock alt, Mechman 370 Elite, 185 DC Power 320+ Sq. Ft. Sound Deadener Pioneer AVH-X5500BHS Youtube: https://www.youtube.com/user/knfjdkghjudfhsgkjdhf/videos?sort=dd&view=0&shelf_id=0
RossGo Posted October 3, 2014 Report Posted October 3, 2014 Wouldn't box resonance cause the sub to see less power? I get hot at full, full tilt for several minutes straight, but at a click or two below I can go for an hour and be only warm. You're even underpowering this thing though aren't you? Yes I have a lot of stereo weight. I build for Smiles Per Gallon not Miles Per Gallon LOLZ My build - 1996 4Runner with 2 18s - 149+ in a sealed box (with radiators)
gckless Posted October 3, 2014 Author Report Posted October 3, 2014 Wouldn't box resonance cause the sub to see less power? I get hot at full, full tilt for several minutes straight, but at a click or two below I can go for an hour and be only warm. You're even underpowering this thing though aren't you? Yeah should. I need to get an impedance profile done and see what's going on. I am at this point. So only explanation in my mind is dirty signal. Just have to learn the limits and adjust accordingly I guess. "Clipping" is the biggest forum boner now. It's like witchcraft... it automatically explains just about everything people don't understand. My build log: http://www.stevemeadedesigns.com/board/topic/200295-gckless-2011-chevrolet-impala/ High resolution photos: Gilbert Kless Photography
Karkov Posted October 3, 2014 Report Posted October 3, 2014 Try a different amp? 2007 Chevy Tahoe (SOLD) 12 ~ FI Audio X series 10" w/BP option 2 ~ DC Audio 5.0K @0.67 3 ~ DC Audio 5.0K @1.0 2 ~ PPI 3 way sets (not installed yet) 1 ~ RF T400-4, 1 ~ RF T600-2, 1 ~ RF T600-4 4 ~ CT Sounds 5.25" Strato comps (rear fill only) 1 ~ XS Power D4800 1 ~ XS Power D3400 8 ~ XS Power XP3000 160 stock alt, Mechman 370 Elite, 185 DC Power 320+ Sq. Ft. Sound Deadener Pioneer AVH-X5500BHS Youtube: https://www.youtube.com/user/knfjdkghjudfhsgkjdhf/videos?sort=dd&view=0&shelf_id=0
gckless Posted October 3, 2014 Author Report Posted October 3, 2014 Try a different amp? Don't have one. What would lead you to believe it's the amp? Or just simply troubleshooting? "Clipping" is the biggest forum boner now. It's like witchcraft... it automatically explains just about everything people don't understand. My build log: http://www.stevemeadedesigns.com/board/topic/200295-gckless-2011-chevrolet-impala/ High resolution photos: Gilbert Kless Photography
Karkov Posted October 3, 2014 Report Posted October 3, 2014 Just straight guessing. I really don't know if you have a problem or not but you don't seem happy so something must be amiss? You can blame it on the box but if I were you I would not want to wreck that beast sub so I would start eliminating things and with what is going on with it...I would start with the amp. (I forget what you are currently running) also, again i am just guessing. 2007 Chevy Tahoe (SOLD) 12 ~ FI Audio X series 10" w/BP option 2 ~ DC Audio 5.0K @0.67 3 ~ DC Audio 5.0K @1.0 2 ~ PPI 3 way sets (not installed yet) 1 ~ RF T400-4, 1 ~ RF T600-2, 1 ~ RF T600-4 4 ~ CT Sounds 5.25" Strato comps (rear fill only) 1 ~ XS Power D4800 1 ~ XS Power D3400 8 ~ XS Power XP3000 160 stock alt, Mechman 370 Elite, 185 DC Power 320+ Sq. Ft. Sound Deadener Pioneer AVH-X5500BHS Youtube: https://www.youtube.com/user/knfjdkghjudfhsgkjdhf/videos?sort=dd&view=0&shelf_id=0
gckless Posted October 3, 2014 Author Report Posted October 3, 2014 Just straight guessing. I really don't know if you have a problem or not but you don't seem happy so something must be amiss? You can blame it on the box but if I were you I would not want to wreck that beast sub so I would start eliminating things and with what is going on with it...I would start with the amp. (I forget what you are currently running) also, again i am just guessing. DC 5.0k. Wired to .7 right now. I don't suspect the physical equipment right now, but still could be my gain. Don't get me wrong, I don't always smell coil. Maybe I'm simply getting happy with the volume/gain, but it doesn't make sense with the way I set my gain. On paper anyway. box specs? 10 cubes net tuned to 24Hz. Tantric says 10-12 would be ok. It's a little in the small side, but not by a huge amount. "Clipping" is the biggest forum boner now. It's like witchcraft... it automatically explains just about everything people don't understand. My build log: http://www.stevemeadedesigns.com/board/topic/200295-gckless-2011-chevrolet-impala/ High resolution photos: Gilbert Kless Photography
SlamminBeats Posted October 3, 2014 Report Posted October 3, 2014 Just straight guessing. I really don't know if you have a problem or not but you don't seem happy so something must be amiss? You can blame it on the box but if I were you I would not want to wreck that beast sub so I would start eliminating things and with what is going on with it...I would start with the amp. (I forget what you are currently running) also, again i am just guessing. DC 5.0k. Wired to .7 right now. I don't suspect the physical equipment right now, but still could be my gain. Don't get me wrong, I don't always smell coil. Maybe I'm simply getting happy with the volume/gain, but it doesn't make sense with the way I set my gain. On paper anyway. box specs? 10 cubes net tuned to 24Hz. Tantric says 10-12 would be ok. It's a little in the small side, but not by a huge amount. i didnt read much but your concern is the roll off at 43hz?
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