Polk Audio Signa S4 vs Furrion Aurora FSBNN30MST Soundbar Comparison

Polk Audio Signa S4 vs Furrion Aurora FSBNN30MST

Polk Audio Signa S4

3.1.2-channel | $449

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Furrion Aurora FSBNN30MST

2.1-channel | $400

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Polk Audio Signa S4 vs Furrion Aurora FSBNN30MST: the short answer

We can compare 13 features from the published specs. The Polk Audio Signa S4 is ahead on 8, the Furrion Aurora FSBNN30MST on none, and 5 are ties. The biggest difference for movies is height: the Polk Audio Signa S4 has 2 ceiling-firing channels and the Furrion Aurora FSBNN30MST has none. Only the Polk Audio Signa S4 comes with a subwoofer, which matters when comparing the prices.

Reasons to choose Polk Audio Signa S4 over Furrion Aurora FSBNN30MST

Channel layout: 3.1.2 vs 2.1
Height channels: 2 vs 0
Dolby Atmos: Yes vs No
HDMI to the TV: eARC vs ARC
HDMI inputs: 1 vs 0
Subwoofer: Included vs Built-in
Dialogue enhancement: Yes vs No
Height: 2.5 in vs 3.75 in

Side-by-Side Comparison

	Polk Audio Signa S4	Furrion Aurora FSBNN30MST
Channel layout Counts speaker channels the bar actually has. More ear-level and height channels means a wider, taller sound field.	3.1.2	2.1
Height channels Drivers aimed at the ceiling, which is what makes Dolby Atmos sound overhead rather than just wide.	2	0
Dolby Atmos	Yes	No
DTS:X	No	No
HDMI to the TV eARC carries lossless Dolby TrueHD and Atmos from the TV; plain ARC compresses them.	eARC	ARC
HDMI inputs A spare HDMI port for a games console or disc player.	1	0
Subwoofer Included beats optional beats none: a separate subwoofer is where deep bass comes from.	Included	Built-in
Rear speakers Real rear speakers put effects behind you; without them surround is simulated from the front.	None	None
Room correction	No	No
Streaming	Bluetooth only	Bluetooth only
Voice assistant Built in, rather than through a separate smart speaker.	No	No
Dialogue enhancement	Yes	No
Height Lower is less likely to block the bottom of the TV picture.	2.5 in	3.75 in
Width / suits TVs from Neither is better: match the bar to your TV. See the size simulator below.	41.13 in / 50-inch	39.38 in / 50-inch
Drivers in the bar	7	6
Power (total, as published) Makers rate soundbar power differently, so the totals are not a like-for-like comparison.	—	70 W
Weight	—	8.4 lbs
List price	$449	$400

Green marks the better figure where one is better. Dashes are specs the maker does not publish.

Size: Both Soundbars in Front of a TV

Drawn to scale. The solid bar is the Polk Audio Signa S4, the dashed outline the Furrion Aurora FSBNN30MST. Pick your TV size and how it stands to see whether either would cover the picture.

Full Specifications

Polk Audio Signa S4 Specifications

Sound
Channels	3.1.2
Dolby Atmos	Yes
DTS:X	No
Drivers	Tweeters: 1" Dome (3); Midrange: 2.625" Height Drivers (2); Woofers: 4.75"x1.5" Cone (2); Subwoofer: 5.9375" Cone; Enclosure: Ported
Subwoofer	Included
Rear speakers	None
Virtual surround	Movie Mode
Dialogue enhancement	Yes
Night mode	Yes
Room correction	No
Connections
HDMI to TV	eARC
HDMI inputs	1
HDMI version	2.1
Optical inputs	Yes
Analogue input	3.5mm
USB	No
Subwoofer output	Wireless
HDMI CEC	Yes
Streaming and Control
Wi-Fi	No
Bluetooth	Yes
Voice control	No
Remote included	Yes
Learns TV remote	Yes
Physical
Dimensions (W x H x D)	41.13 x 2.5 x 3.81 in / 1045 x 64 x 97 mm
Subwoofer size	7.88 x 12.94 x 12.81 in (W x H x D)
Wall mounting	Yes (no bracket supplied)
Warranty	1 Year parts, 1 Year labour
List price	$449

Power is the maker's total across all drivers and is not comparable to an amplifier's per-channel rating.

Furrion Aurora FSBNN30MST Specifications

Sound
Channels	2.1
Dolby Atmos	No
DTS:X	No
Drivers	Tweeters: 2" Dome (2); Midrange: 3" Cone (2); Woofers: 3" Cone (2); Enclosure: Sealed
Power (bar, total)	70 watts
Frequency response	20-18k Hz
Subwoofer	Built-in
Rear speakers	None
Virtual surround	No
Dialogue enhancement	No
Night mode	No
Room correction	No
Connections
HDMI to TV	ARC
HDMI inputs	0
HDMI version	1.4
Optical inputs	Yes
Analogue input	3.5mm
USB	No
Subwoofer output	No
HDMI CEC	Yes
Streaming and Control
Wi-Fi	No
Bluetooth	Yes
Voice control	No
Remote included	Yes
Learns TV remote	No
Physical
Dimensions (W x H x D)	39.38 x 3.75 x 3.94 in / 1000 x 95 x 100 mm
Weight	8.4 lbs / 3.81 kg
Wall mounting	Yes (bracket included)
Warranty	1 Year parts, 1 Year labour
List price	$400

Power is the maker's total across all drivers and is not comparable to an amplifier's per-channel rating.

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