Oakcastle SB80 Xtra 2.1 Split-Soundbar 200W vs Polk Audio Signa S4 Ultradünne Soundbar

What SB80 Xtra 2.1 Split-Soundbar 200W does better (0) and where Signa S4 Ultradünne Soundbar wins (1) — every spec side by side.

0 advantages

Polk Audio · 2026Signa S4 Ultradünne Soundbar

1 advantage≈ $460

Why is SB80 Xtra 2.1 Split-Soundbar 200W better than Signa S4 Ultradünne Soundbar?

SB80 Xtra 2.1 Split-Soundbar 200W has no measurable advantages in this pair.

Specifications

Only differences	Oakcastle SB80 Xtra 2.1 Split-Soundbar 200W	Polk Audio Signa S4 Ultradünne Soundbar≈ $460
Sound
Speaker channels	2.1	3.1.2
Channel count	2.1	3.1
Subwoofer	Wireless subwoofer included	Wireless subwoofer included
Spatial / 3D audio	—	Yes
Dolby Atmos	—	Yes
Stereo	Yes	Yes
Battery & charging
Mains powered	Yes	Yes
Battery powered (portable)	No	No
Connectivity
Wireless	Yes	Yes
Bluetooth version	5.3	—
HDMI eARC / ARC	Yes	—
Design & build
Width	—	1,046 mm
Colours	Black	Black
Features
Remote control	Yes	—
Placement	an der Wand	—