Description
SUNDOWN AUDIO U Series 8" D2 (600-watts)
The U-8 can be thought of as an SA-8 v3 on performance boosters. Everything there is to love about the SA-8 v3 just with more power handling, more x-max, and more output potential.
The specially designed motor is mated to a custom tooled and patented (US Patent D691595) frame which allows for a larger spider and superior clearances to nearly any other 8" woofer on the market today. The U-8 features a full 18mm of one-way linear excursion and mechanical capacity in excess of double the linear limits (around 2.5” peak-to-peak) to ensure that mechanical failures are nearly impossible. As with the SA-8 v.3 it features a surround that mimics the geometry of our large Mega-Roll v.2 surrounds for incredible linearity.
FEATURES (U-8)
- Xmax = 18mm one-way by 70% BL
- RMS Power = 600-watts
- Vented magnetic gap featuring 12 chamfered gap vents
- Vented pole-piece with chamfered edges
- High velocity under-spider frame vents
- Black Aluminum 2.25” voice coil former for superior heat dissipation
- High Temperature copper voice coil wire
- Large Magnet ID aluminum faraday ring
- Spring Loaded Terminals
- Stitched-On “XL” Tinsel Leads to prevent fatigue and failure
- High strength & patented cast aluminum frame
- Optimized for small, ported enclosures
- Bolt-Through Motor Design for enhanced longevity
SPECIFICATIONS
| T/S SPECS | U 8" D2 | U 8" D4 |
|---|---|---|
| RE (Ohms) | 3.8 | 6.34 |
| FS (Hz) | 39.387 | 41.288 |
| VAS (L) | 6.345 | 6.970 |
| Qes | 0.412 | 0.519 |
| Qms | 2.474 | 2.542 |
| Qts | 0.353 | 0.431 |
| BL (NA) | 20.00 | 21.45 |
| Mms (Grams) | 175.340 | 145.239 |
| Cms (mm/N) | 93.125 | 102.308 |
| Sens (dB @ 1w/1m) | 81.6db |
81.6db |
ENCLOSURE SPECS
- Ported Enclosure
-
- Size: .65-.75 cuft net
- Port Area: 9-12 sqin
- Port Tuning: 35hz
- Sealed Enclosure
-
- Size: .3 cuft net
- Displacement: .09 cu. ft.
- Depth: 6.02"
- Outside Diameter: 8.70"
- Cutout: 7.3"
- Physical Dimensions
