Name: Sundown Audio SA-6.5 SW D4
SKU: SA-6.5 SW D4
Availability: InStock

Description

Sundown Audio SA-6.5 SW D4

The Sundown Audio SA-6.5 SW D4 is a compact 6.5-inch shallow-mount subwoofer designed for powerful bass output in vehicles where installation depth is limited. Part of the SA Series, this subwoofer features a dual 4-ohm (D4) voice coil configuration for flexible wiring options, along with a high-temperature copper voice coil and a robust motor structure for clean and controlled low-frequency performance. Its reinforced cone, durable surround, and solid build quality allow it to handle demanding bass applications while maintaining clarity. Ideal for sealed enclosures, the SA-6.5 SW D4 is a great solution for tight spaces such as under-seat, truck, or compact car audio systems where space efficiency and sound quality are equally important.

Specifications

T/S SPECS	SA 6.5 D2	SA 6.5 D4
RE (Ohms)	4.0	7.1
FS (Hz)	48.9	51.8
VAS (L)	4.1	3.6
Qes	0.50	0.54
Qms	4.82	4.65
Qts	0.46	0.49
Le (mH)	1.69	2.45
BL (NA)	13.5	17.9
Mms (Grams)	74.8	75.6
Cms (uM/N)	.14	.12
Sens (dB @ 1w/1m)	81.6	81.5
Xmax	10mm	10mm

Enclosure Specifications

Sealed Enclosure	0.15 cu ft
Ported Enclosure	0.3 cu ft
Recommended Tuning	40Hz
Recommended Port Area	4 sq in
Displacement
Depth	3.79″
Outside Diameter	7.16″
Cut-Out	5.93″
Product Sku	SA-6.5 SW D4

The SA-6.5SW was created to achieve extremely high performance with less than 4” of mounting depth. Sundown uses a solid-pole design, allowing the back plate to rest against the back wall of the enclosure to reduce the mounting depth requirements even more. Twenty millimeters of mechanical excursion means surprisingly deep bass out of this mighty 6.5” sub!