HiVi M8a Aluminum / Magnesium Cone 8″ Woofer

HiVi M8a  RAW Frequency Response
Baffle Width=10.5″, Ported Box=20L
Mic on axis, No Smoothing, Impulse Window=5ms. Measurements below 500Hz is Nearfield.

HiVi M8a Cumulative Spectral Decay (CSD)
Window = 1.3ms (769Hz), Time Range = 1.2ms, Rise Time = 0.1ms

HiVi M8a Toneburst Energy Storage
Impulse Window = 5ms

HiVi M8a Spectrogram
Impulse Window = 5ms

HiVi M8a Thiele & Small Parameters

Sealed Box 35 liters. F3=55Hz. Q=0.88

Sealed Box 55 liters. F3=53Hz. Q=0.82

Sealed Box 75 liters. F3=53Hz. Q=0.79

Bandpass Subwoofer 35 liters. F3=37Hz-117Hz

Bandpass Subwoofer 45 liters. F3=40Hz-110Hz

Bandpass Subwoofer 75 liters. F3=35Hz-105Hz
ISOBARIC Bandpass 37.5 liters

Bandpass Subwoofer 97 liters. F3=35Hz-95Hz
ISOBARIC Bandpass 48.5 liters

Updated on Feb 9, 2023