(2) SUNDOWN AUDIO SA-15 D4 CLASSIC 15" 750W RMS DUAL 4-OHM SUBWOOFERS SPEAKERS

Description

Brand New!
2 Year Warranty
(2) SA-15 D4 Classic - Sundown Audio 15" 750W Dual 4-Ohm SA Series Subwoofers
Retail Price:
9.99
Features & Specifications:
Features and Specifications:
The SA series was designed to be an excellent sounding subwoofer that is equally at home sealed or ported. We feel that the SA series is one of the best woofers available in it's price category and will satisfy the needs of a wide variety of users ranging from bass-heads to audiophiles!
The SA series is also gaining popularity in SPL competitions due to their excellent voice coil cooling and rugged, durable constructions with several customers achieving output well over 150 dB!
RE (ohms): 4.61
FS (Hz): 34.88
Vas (L): 54.69
Qes: 0.72
Qms: 6.52
Qts: 0.65
Le (mH): 3.39
BL (NA): 21.76
Mms (Grams): 338
Cms (uM/N): 61.42
Sens (1w/1m): 86.81
Cutout Diameter: 14 1/8"
Mounting Depth: 7 1/2"
Overall Diameter w/ Gasket: 15 5/8"
Displacement: 0.17ft^3
RMS: 750 Watts
19.0mm X‐Max by 70% BL method one‐way (38.0mm peak to peak)
Thick black anodized aluminum voice coil formers for maximum strength and heat dissipation
4‐layer copper high temperature voice coil windings with 45mm winding length
Double layer permanently bonded high strength Nomex spider pack for maximum longevity and durability
Thick flat tinsel lead wires tied down to the spider to prevent lead noise and breakage
Custom tooled triple joint support ring
Custom tooled frame spacer / ventilation ring
High efficiency air‐flow management integrated into the motor for maximum voice coil cooling
Dual Aluminum Faraday rings for reduced inductance and inductive distortion (pole cap and magnet ID)
Two‐Year Warranty against defects in materials and workmanship
Box Recommendations:
Recommended Box Specs (Sealed): 2.5ft^3 (Yields F3 of 41Hz)
Recommended Box Specs (Ported): 3.5ft^3 (Tune to 35Hz, Yields F3 of 28Hz)
Specifications are measured after about 5 minutes of break-in time
You will see the CMS loosen up another 33% after some serious play time, which will both reduce the FS and Qts figures of the drivers
Some Re variance is shown based on coil temperature from break-in period
D2 is closer to 4.0 in series and D4 7.0 in series at room temperature
This does not affect box calculations.
Box specifications are suggestions – other volumes and tunings can be used based on the needs of your application
The SA series woofers are compatible with most quality pre-fabricated enclosures as well
They also lend themselves favorably to fourth order band-pass enclosures
DC Resistance (Re)
Ω
7.75
Resonance Frequency (Fs)
Hz
36.95
Equivalent Volume (Vas)
L
52.35
Electrical Q Factor (Qes)
0.85
Mechanical Q Factor (Qms)
6.63
Total Q Factor (Qts)
0.75
Voice Coil Inductance (Le)
mH
4.98
Force Factor (BL)
NA
25.87
Moving Mass (incl. Air Load) (Mms)
g
315
Suspension Compliance (Cms)
mm/N
58.8
Sensitivity
1w / 1m
86.68 dB
Sealed Enclosure Suggestion
cu. ft.
2.5
Ported Enclosure Suggestion
cu. ft.
3 - 4 @ 35Hz
Displacement
cu. ft.
0.17
Depth
in
7.5
Outside Diameter
in
15.625
Cutout
in
14.125
International Shipping:
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Import duties, taxes and charges are
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in the item price or shipping charges. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.
These charges are normally collected by the delivering freight (shipping) company or when you pick the item up – do not confuse them for additional shipping charges.
Warranty
:
Each and every product for sale on ebay.com by woofersetc is covered under a (1) One Year Warranty, and can be returned for a period of (1) one year for warranty service. If you have purchased a product from us within the last one (1) year, and it is failing to perform as intended by its manufacturer, please email customer service. You will be issued a Return Authorization Number. Returns will not be accepted without a previously issued RA#.
In order to maintain an inventory of 100%, Brand New, A-Stock, untouched products, all sales are final. We ask that you please be sure you are ordering the correct product.
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