12 inch L7X front
12 inch L7X three-quarter
12 inch L7X side
12 inch L7X back
enlarge front
enlarge three-quarter
enlarge side
enlarge back
12" SoloX L7X 1 Ohm
The KICKER SoloX L7X is our most advanced bass technology with extreme power handling – made to turn heads!

model: 49L7X121


SoloX always promises high-excursion design, made for ultra-deep bass at very high volume. It’s developed like no other KICKER subwoofer.


  1. Field-Replaceable Recone Kit – cone/voice coil/spider assembly, and no gluing required
  2. Forced Air Cooling™
  3. Three-inch, aluminum voice coil former
  4. Dual-spider suspension
  5. Double-pressed pulp cone
  6. Heavy-duty UV-resistant Santoprene surround
  7. Custom rubber magnet boot
  8. Cast-aluminum basket
  9. Single 8 AWG terminal and dual 8 AWG terminal block
  10. Triple-Stacked Ferrite Magnet
Thiele/Small Parameters
49L7X121 T/S Parameters
Size (in, cm)
12, 30
Rated Impedance (Ohms)
Rec Amp Power rms
Frequency Response
Magnet Diameter (in, cm)
8-11/16, 22
Total Magnet Weight (oz, kg)
406, 11.5
Voice Coil Diameter (in, mm)
3, 75
Voice Coil Winding Width (in, mm)
2.5, 62.5
Product Dimension Sheet
49L7X12 Dimensions
Top Plate Thickness (in, mm)
0.5, 13
Xmax (in, mm)
1.25, 31.25
Mounting Cutout (in, cm)
11-1/16, 28.1
Mounting Depth (in, cm)
10-1/8, 25.7
Recommended Vented Box Volume (Cu. Ft., L)
3, 84.9
Port Opening (in x in, cm x cm)
3.5 x 13, 9 x 33
Port Length (in, cm)
36.5, 93
Vented Enclosure Tuning Frequency (Hz)
When purchased from an Authorized KICKER Dealer or kicker.com, KICKER warrants this SOLO X product to be free from defects in material and workmanship under normal use for a period of TWO (2) YEARS from date of original purchase. - Complete warranty information here.

*Assumes typical music program with minimal amplifier clipping; varies with enclosure size. See your KICKER dealer for details.

**Port Volume Excluded.

Due to continual development, product and specifications are subject to change without notice. Stillwater Designs and its agents are not responsible for typographical errors.



49L7X12 Dimensions | Download

Customer Info Card | Download

Manual | Download

Contact Support

Technical Support
(405) 624-8583
8am - 5pm CST

Warranty Support
(405) 624-8510
8am - 5pm CST

since 1973

© , Stillwater Designs. All rights reserved. Copyright and Trademark Notice.

We use cookies to personalize content and ads, to provide social media features and to analyze our traffic. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information that you've provided to them or that they've collected from your use of their services. You consent to our cookies if you continue to use this website. Check out our Privacy Policy.