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PRODUCT DESCRIPTION
There is a strong following of the old SD-2 series from 2011 still to this day. While the SD-3 and soon to be the SD-4 are much stronger in terms of low F3 & low distortion in small sealed boxes... some folks miss the ability of the SD-2 to take a tremendous beating (it shared the cone, surround, and spider of the SA series... just with a shorter coil). Sundown Audio has decided to "revive" the SD-2 with several updates to reduce distortion, increase airflow around the coil, and increase long-term reliability (motor bolted together, aluminum cap bolted on, shorting ring added to magnet ID, spider bolted down, bigger leads, etc) by introducing a new "SLD" lineup.
Sealed Enclosure | 1 cu ft |
Ported Enclosure | 1.5 cu ft |
Recommended Tuning | 35Hz |
Recommended Port Area | 26 sq in |
Displacement | .12 cu ft |
Depth | 5.5 |
Outside Diameter | 12.625″ |
Cut-Out | 11.125 |
T/S SPECS | SLD 12″ D2 | SLD 12″ D4 |
RE (Ohms) | 3.65 | 6.85 |
FS (Hz) | 42.959 | 45.142 |
VAS (L) | 26.889 | 29.481 |
Qes | 0.691 | 0.619 |
Qms | 2.227 | 2.298 |
Qts | 0.415 | 0.487 |
Le (mH) | ||
BL (NA) | 19.868 | 23.025 |
Mms (Grams) | 204.319 | 168.773 |
Cms (uM/N) | 67.177 | 73.652 |
Sens (dB @ 1w/1m) | 88.1 | 88.3 |
| Brand | Sundown |
|---|---|
| MPN | SLD12D4 |
| Model | SLD12D4 |
| UPC | NA |
| Condition | New |
| Featured | No |
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