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AudioQue HDC3 18" - Subwoofers / Enclosures - #1 Car Audio ...
https://www.stevemeadedesigns.com/board/topic/53068-audioque-hdc3-18/
However though, all the HDC3's use 8 spiders !!!! These drivers should be incredible, and I cant wait. I'll be feeding 6000watts to my 4. Also, the 18"s weigh in at almost 60lbs. **EDIT** looks like we have had similar setups. First we had the Fi BL's (I had 2 18"s), then sold them, and went to audioque, looks like you might go down the same path!
Audioque hdc3 18 gettin low!!!!! - YouTube
https://www.youtube.com/watch?v=0YZHzGAl8_w
Audioque HDC3 18 alumAudioque 2200dKinetik hc2000
Audioque hdc 18 in the country. - YouTube
https://www.youtube.com/watch?v=Ep_7lEtERM0
Aq hdc3 18 on a Hifonics bxi2010. Cooked now.
Subwoofer Guru's: Audioque HD3 vs FI Audio | GMC Truck Forum
https://www.gmfullsize.com/threads/subwoofer-gurus-audioque-hd3-vs-fi-audio.164765/
A guy on youtube has 2 10" aq subs in a reg cab gmc sierra in a 3 or 3.5 cu ft box and AQ 3500d. He still has stock electrical for now and maybe running 1400-1500wrms and hit 146.6 on Term lab. After he upgrades his electrical and big 3 plus batteries at full tilt no telling what he will hit..
18'' Audioque Hdc3 - YouTube
https://www.youtube.com/watch?v=t21G02Yf22E
playing some ba ba boom bass
Subwoofer Guru's: Audioque HD3 vs FI Audio | Page 2 | GMC ...
https://www.gmfullsize.com/threads/subwoofer-gurus-audioque-hd3-vs-fi-audio.164765/page-2
Straight from the audioque website below.. Audioque subs have been designed to extract max performance from moderate box volumes. The 8" subs work in 1.0cuft, 10-inch subs work in 1.5cuft, 12-inch subs work in 2.5cuft, and 15-inch subs work in 4.5cuft. Use these box volumes in multiples to calculate larger usable box volumes.
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