About: Sundown Audio M8 M-Series 800W RMS Car Subwoofer
The Sundown Audio M-8 is the big brother to the SA-8 v.3 model. Both the coil diameter and winding width are increased in comparison, resulting in higher power handling and more linear x-max. It features a Mid-Q which results in excellent vented and bandpass performance.
The specially designed motor is mated to a custom tooled and patented (US Patent D691595) frame. The smooth one-piece T-Yoke was FEA optimized for optimal flux transmission. The M-8 features a fully computer optimized spider & surround designed for low distortion and high levels of long-term endurance under demanding conditions. It features a thick magnet ID shorting ring to linearize and reduce inductance – thus reducing distortion even further. Every detail was engineered for phenomenal performance and pleasing aesthetics.
Features:
| Specification | M8 D2 | M8 D4 |
|---|---|---|
| Fs | 43.95 Hz | 45.45 Hz |
| Re | 3.80 Ω | 6.34 Ω |
| Qms | 3.5890 | 3.0670 |
| Qes | 0.4730 | 0.5240 |
| Qts | 0.4180 | 0.4480 |
| Mms | 247.12 g | 252.42 g |
| Cms | 53.06 µm/N | 46.56 µm/N |
| Sd | 141.3 cm² | 141.3 cm² |
| Vas | 3.62 L | 3.31 L |
| SPL (1w/1m) | 80.0 dB | 79.6 dB |
| BL | 23.410 | 29.546 |
| X-Max | 18 mm | 18 mm |
| Power (RMS) | 800W | 800W |
| Power (Peak) | 1600W | 1600W |

Most products include a
limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use.
Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside
manufacturer specifications.
For complete warranty terms, exclusions, and claim procedures, please visit our full
Warranty Policy page.
Most products include a
limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use.
Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside
manufacturer specifications.
For complete warranty terms, exclusions, and claim procedures, please visit our full
Warranty Policy page.
Fast shipping across Canada from our Toronto warehouse. Most orders ship within 1–2 business days. Shipping costs and delivery estimates are calculated at checkout. Returns are accepted on eligible items that are unused and in original packaging within our return period. For full details, please view our Shipping Policy and Returns & Exchanges Policy.
Please note that final sale, clearance, open-box, and refurbished items are not eligible for returns or refunds. These items may only be covered under their respective warranty or exchange terms where applicable. For full details regarding open-box items, please review our Open Box Policy.
Sundown Audio
On orders over $200*
Competitive pricing you can trust
Most orders ship within 24 hours
With Sezzle and Afterpay