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Gain set with DD-1... Subs getting warm after full tilt runs.


AcIdBuRn02ZTS

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Posted

It's perfectly normal for subs to be warm after you beat on them.

That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals.

Posted

Everything above plus consider if you were playing below tuning your impedance curve usually dives after the port frequency. Master P had some pretty low notes though I don't recall the bass line on that particular track off-hand. You cant bank on impedance rise.That said, you are probably clipping.

CURRENT SYSTEM:

  • Alternator:
    1. Stock alt on mids/highs
    2. Isolated DC Power 270 SP - Charging @ 16.8v
  • Batteries: (2) XS D1400s
  • Power Cable: Double Runs of 1/0 KNU Kolossus Fleks
  • Headunit: 80-PRS
  • Sub Amp: DC 5.0k
  • Subwoofers: 2 RE MT 15s /PSI dual .7ohm recones
  • Subwoofer Enclosure: 9.1cubes @ 32hz - brutal.
  • Mids & Highs Amp: CT125.4
  • Active Components:
    • Mids RE XXX 6.5c
    • Highs - 3 RE XXX tweeters per side(A pillar)
  • Noise Control: Damplifier Pro all over the cab.

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Posted

I'd either check with a scope if possible, or use the -5db track.

It's been years since I've fooled around with Audacity, but I thought I remembered being able to see the recorded level of songs. I may be wrong on that, though.

Posted

These drivers have been in the truck for several years on a smaller amp. I upsized the amp recently (from 2krms to 3krms @1ohm) and picked up the DD-1 for properly setting everything.

The box is tuned at 30hz but I haven't done any testing on it to verify exactly where it is (if that's possible). The box is rather large and has a lot of port area.

I'd say the drivers were getting hot... I could smell them and the dust caps were warm to the touch... However even after several years of being beat on at 2k rms, the drivers are still really stiff if that makes a difference. They feel like the day I pulled them out of the box.

03' Black Z71 Tahoe
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Eclipse AVN6620 Touchscreen Head Unit
Hifonics BRX3016 - 3krms @ 1ohm
2 RE Auido SX 18s - 14.5^3ft net @ 30hz w/ 200^2in. port
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Posted

track 5 in my experience is a little much, wish there was a track between 3 and 5. almost all setup i have done witht rack 5 have gotten some stank fairly quickly, around 1 song length. maybe check it at 3 then 5 then set it between the 2

Kenwood excelon ddx795

 3 370 amp CES alternators (audio side only)           
       McLaren dome tweeters                                   Crescendo 6.5 ultra neos 
                                                 NVX JAD800.4
                                            4 PA x4 SPL 18's
                     4 Digital Designs m5's at .7 ohms each
        2 K2 80 ah lithiums

                              3 group 31 agms                                       Ledglow million color (12 piece)

2007 Yukon xl

 

Posted

unfortunately the smd dd-1 is not the end all tuning tool, it will get you close. different songs are recorded different volumes and such so that affects the distortion coming out of amp

Kenwood excelon ddx795

 3 370 amp CES alternators (audio side only)           
       McLaren dome tweeters                                   Crescendo 6.5 ultra neos 
                                                 NVX JAD800.4
                                            4 PA x4 SPL 18's
                     4 Digital Designs m5's at .7 ohms each
        2 K2 80 ah lithiums

                              3 group 31 agms                                       Ledglow million color (12 piece)

2007 Yukon xl

 

Posted

If they were fine on 2k and you say the box is big for what you're running, the increase in power that your giving them (if you're even getting that power) could potentially be a problem. Too much airspace with too much power.

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Posted

Also, playing outside of your tuning range could be an issue. lets say you're tuned at 36 and you trying to play 20. your gonna have issues

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