CT Sounds is offering a limited quantity of our popular STRATO-15-D2 for sale on eBay. This item shows signs of installation/cosmetic wear (scratches, scuff marks on basket, etc.) and was tested and certified by our in-house technicians as fully operational and functions as intended. The original packaging may be damaged and missing protective wrapping, product manuals, and decal stickers. All used subwoofers purchased directly from our eBay store come with a 1-year manufacturer warranty.
| General Specifications: | |
| Condition: | Used |
| Product Type: | Car Subwoofer |
| Subwoofer Size: | 15" |
| Voice Coil Configuration: | Dual 2 Ohm |
| RMS Power: | 1250 Watts |
| MAX Power: | 2500 Watts |
| Voice Coil Type: | 3 Inch - 4 Layer High-Temperature CCAW Voice Coil |
| Magnet Type: | Double Stacked Y35 Ferrite Magnet |
| Bottom Plate Type: | Signature Chrome Low Carbon Iron Bottom Plate |
| Surround Type: | Dual White Stitched Competition Mega Foam Surround |
| Cone Type: | Composite Paper with 4% Carbon Fiber Reinforcement |
| Tinsel Lead Type: | Dual Round Weaved Copper Tinsel Leads |
| Terminal Type: | 8 Gauge Push Terminals |
| Basket Type: | Cast Aluminum |
| Spider Material: | Poly-Cotton + Nomex Blend |
| T/S Parameters: | |
| Qes: | 0.636 |
| Qms: | 6.67 |
| Qts: | 0.58 |
| Fs: | 28.2 Hz |
| Vas: | 62.88 L |
| Mms: | 464.22 g |
| Cms: | 0.069 m/N |
| Re: | 0.98 Ω |
| Bl: | 11.26 Tm |
| Le: | 0.756 mH |
| Sd: | 804.25 cm² |
| Xmax - Single Way (mm): | 15 mm |
| Xmax - Single Way (cm): | 1.5 cm |
| Vd (Sd*Xmax): | 1206.375 cm³ |
| SPL: | 87.48 dB |
| Subwoofer Measurements: | |
| Cutout diameter | 13.90" |
| Overall diameter | 15.50" |
| Mounting depth | 8.11" |
| Box Specifications: | |
| Port Area | 50 in 2 |
| Displacement | 0.24 ft 3 |
| Flat Response Curve (SQ): | |
| Sealed | 3 ft 3 |
| Ported | 2.50 ft 3 |
| Tuning Frequency | 30 Hz |
| Boomer Response Curve (SQ): | |
| Sealed | - |
| Ported | 4 ft 3 |
| Tuning Frequency | 28 Hz |
*Flat response curve (SQ) is geared towards people looking for responsiveness. This style box is loud on all frequencies, generates little impedance loss, and can utilize an amplifier rated at the same RMS as the subwoofer.
*Boomer response curve (SPL) is geared towards people looking for maximum loudness. This style box will be louder than the flat response curve at some frequencies, has a high impedance rise, and can utilize an amplifier rated at a slightly higher RMS than the subwoofer.
*Enclosure recommendations do not account for subwoofer, bracing, and port displacement.