BG Radia BGX-S6B vs Dayton Audio MKSX4

Last updated: October 27, 2026

Short answer: the Dayton Audio MKSX4 for more output without an in-wall install. It delivers 106.2dB CEA-2010-A average from four 4-inch drivers in a low-profile cabinet under 8 inches, against 102.1dB from the BG Radia BGX-S6B’s six 4-inch drivers in an in-wall panel. The Dayton’s output is budget-tier and its ported design depends on the room, while the BGX-S6B needs in-wall installation and is limited to 102.1dB.

BG Radia BGX-S6B vs Dayton Audio MKSX4

Buy the Dayton Audio MKSX4. It is rated higher for sound quality, and the BG Radia BGX-S6B is discontinued, so it is only available used.

Looking for alternatives? See the complete Subwoofers rankings.

Prices on this page were last checked November 7, 2026 at 7:34 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Specifications Side By Side

BG Radia BGX-S6B Dayton Audio MKSX4
Price$189 Passive, Discontinued$144.98 Passive
Ranked#62 of 73 in Small Home Subwoofers (Under 30 lbs)#19 of 73 in Small Home Subwoofers (Under 30 lbs)
Enclosurein-wallported, rear
PassiveYesYes
Output SPL at 20 Hz82.3 dB-
Output SPL at 25 Hz82.3 dB-
Output SPL at 31.5 Hz82.3 dB84.7 dB
Output SPL at 40 Hz102.1 dB101.4 dB
Output SPL at 50 Hz102.1 dB112.8 dB
Output SPL at 63 Hz102.1 dB116.3 dB
CEA-2010-A Average (40-80Hz)102.1 dB (avg of 3/4 bands)112.2 dB
Dimensions14”H x 14”W x 3.7”D (355.6 x 355.6 x 95.2 mm)16”H x 5.9”W x 14”D (406.4 x 149.9 x 355.6 mm)
Weight16.1 lbs (7.3 kg)26.9 lbs (12.2 kg)
Measurement SourceBrent ButterworthBrent Butterworth
Drivers6x 4” (102mm) driver4x 4” (102mm) driver
CountryUSAUnited States
Output SPL at 80 Hz-118.3 dB
Warranty-5
Cabinet Color-black

How Dayton Audio MKSX4 compares with other leading options: