Dayton MB820-8 8″ Pro Midbass Driver Thiele/Small


Dayton MB820-8

The Dayton MB820-8 is the 8″ version of the 10″ MB1025. The Rated Power Handling is 200W RMS. Sensitivity (SPL) is a healthy 94dB (2.83V/1m). The magnet itself weighs a hefty 40oz.

This midwoofer is optimized for voice reinforcement. It can be used as a 2-way satellite for strictly vocal announcements. For music like in a live band, a bass bin is necessary.

Manufacturer’s Specs
Thiele & Small Parameters (before Break-in)Fig 1 – MB820-8 DATS measurement

I love it when my DATS measurements are close to the published specs. It indicates good quality control in manufacturing.

Ported Box=20 liters | Fb=60Hz | Q=0.615 (Manufacturer’s T/S)

Ported Box=20 liters | Fb=60Hz | Q=0.660 (DATS)

Sealed Box=20 liters | F3=108Hz | Q=0.615 (Manufacturer’s T/S)

Sealed Box=20 liters | F3=101Hz | Q=0.660 (DATS)

Updated on Oct 21, 2023