Crescendo Audio - Subs up, ports back...2 18" Contraltos. #crescendoaudio #contralto #inverted #caraudio | Facebook
![PLAN]18" Inverted SUBWOOFER Bandpass Triangle port - YouTube | Subwoofer box design, Subwoofer, Speaker design PLAN]18" Inverted SUBWOOFER Bandpass Triangle port - YouTube | Subwoofer box design, Subwoofer, Speaker design](https://i.pinimg.com/originals/d9/f5/4d/d9f54d29a0cbef747cfcc9227c68a630.jpg)
PLAN]18" Inverted SUBWOOFER Bandpass Triangle port - YouTube | Subwoofer box design, Subwoofer, Speaker design
![How shallow can the enclosure possibly be if the sub is inverted?? | DiyMobileAudio.com Car Stereo Forum How shallow can the enclosure possibly be if the sub is inverted?? | DiyMobileAudio.com Car Stereo Forum](http://i.imgur.com/5QaDQ.png)
How shallow can the enclosure possibly be if the sub is inverted?? | DiyMobileAudio.com Car Stereo Forum
![Inverted Subwoofers FLEXING on 1000 Watts! Andrews 2 15 inch Obsidian Car Audio Subs & Bose Speakers - YouTube Inverted Subwoofers FLEXING on 1000 Watts! Andrews 2 15 inch Obsidian Car Audio Subs & Bose Speakers - YouTube](https://i.ytimg.com/vi/-hnSKIaQE5k/maxresdefault.jpg)
Inverted Subwoofers FLEXING on 1000 Watts! Andrews 2 15 inch Obsidian Car Audio Subs & Bose Speakers - YouTube
![CDT Audio ES-CRM-632iMKiS 3 Way 6.7-in Slim Neo Inverted Magnet/ 3-in / 1-in 250W RMS Audiophile High-Rez Audio Component Set 3 Ohm 400W Max (Pair) : Electronics CDT Audio ES-CRM-632iMKiS 3 Way 6.7-in Slim Neo Inverted Magnet/ 3-in / 1-in 250W RMS Audiophile High-Rez Audio Component Set 3 Ohm 400W Max (Pair) : Electronics](https://images-na.ssl-images-amazon.com/images/I/41ddoXx9a-L._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
CDT Audio ES-CRM-632iMKiS 3 Way 6.7-in Slim Neo Inverted Magnet/ 3-in / 1-in 250W RMS Audiophile High-Rez Audio Component Set 3 Ohm 400W Max (Pair) : Electronics
![Definitely sounds better inverted. Do I need to reverse polarity? Nothing sounds “off” or “out” : r/CarAV Definitely sounds better inverted. Do I need to reverse polarity? Nothing sounds “off” or “out” : r/CarAV](https://preview.redd.it/4i35q9ayy4n71.jpg?auto=webp&s=1b0db1cc96244c9f406fbb35570aeaf610e82673)
Definitely sounds better inverted. Do I need to reverse polarity? Nothing sounds “off” or “out” : r/CarAV
![Thunder8500 subwoofers mounted inverted into custom fiberglass cylinders and powered by Thunder Elite amplif… | Car audio systems, Car audio installation, Car audio Thunder8500 subwoofers mounted inverted into custom fiberglass cylinders and powered by Thunder Elite amplif… | Car audio systems, Car audio installation, Car audio](https://i.pinimg.com/736x/b9/15/93/b91593a6e253592de0c8b2d4f657d95f--thunder-audio.jpg)