Box for Helix SPXL 12" subwoofer, trunk car, ported or sealed.

  • Thread starter tukn18s
  • Replies 0
  • Views 955

tukn18s
10+ year member

CarAudio.com Elite
Help me decide! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

They have some specs on the manufacturers website, but are those always the best way to go? I'd like to run a slot port, but am open to anything. Can someone model it for me to tell me what the best response will be in? Maybe it'll work great sealed? I don't know //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Thanks in advance for any help, I have provided the specs from the website.

Power handling RMS / Max 1500 / 3000 Watts

Impedance 2 x 2 Ohms

Voice coil diameter 100 mm

Voice coil winding height 57.5 mm

Max. linear excursion +/- 23 mm

Cone area 520 cm²

Moving mass 241 g

DC resistance 2 x 1.6 Ohms

Resonance frequency 31 Hz

Mechanical Q factor 2.92

Electrical Q factor 0.57

Total Q factor 0.47

Equivalent air volume 38 L

Voice coil inductance 1.97 mH

Force factor 18.5 Tm

Efficiency 1 W / 1 m 85 dB

Outer diameter 322 mm / 12.68“

Cutout diameter 287 mm / 11.30“

Mounting depth 209 mm / 8.23“

Recommended enclosure

Sealed box

Sealed net volume 45 L

Ported box

Vented net volume 70 L

Port diameter 10 cm

Port area: 80 cm²

Port length 35 cm

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.

About this thread

tukn18s

10+ year member
CarAudio.com Elite
Thread starter
tukn18s
Joined
Location
Lansing, MI
Start date
Participants
Who Replied
Replies
0
Views
955
Last reply date
Last reply from
tukn18s
IMG_20260516_193114554_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0
IMG_20260516_192955471_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0

New threads

Top