Vintage 10″ Pyramid Gold Series Car Subwoofer Thiele & Small Parameters Bandpass Box 25 liters. Fb=69Hz, Q=0.98 Bandpass Box 55 liters. Fb=71Hz, Q=0.73 Ported Box 35 liters. F3=53Hz Ported Box
10″ Pyramid Gold 25L Bandpass Subwoofer This Pyramid Gold is a 10″ car subwoofer that I bought way back in the 90s. It’s probably about 20 odd years now. All
SAE 3100 Power Amplifier SAE (Scientific Audio Electronics) has a rich history in audio. This particular model, the 3100, was manufactured between 1976~1983. It is one of their smaller power
Pyramid PW1870-US Thiele & Small Parameters Recommended for In-Car Use Ported Box 20cuft. F3=29Hz Recommended for In-Car Use Sealed Box 8cuft. F3=42Hz Sealed Box 15cuft. F3=37Hz, Q=1.07 Sealed Box 25cuft.
Pyramid PW1090-US Thiele & Small Parameters Recommended for In-Car Use Ported Box 55 liters. F3=57Hz Ported Box 25 liters. F3=60Hz Ported Box 35 liters. F3=53Hz Sealed Box 10 liters. F3=100Hz.
Pyramid PW1290-US Thiele & Small Parameters Recommended for In-Car Use Ported Box 75 liters. F3=49Hz Ported Box 45 liters. F3=50Hz Ported Box 55 liters. F6=40Hz Ported Box 55 liters. F3=47Hz
Vifa M25WO-49-08 Thiele / Small Parameters Ported Box 35 liters. F3 = 50Hz Ported Box 55 liters. F3=45Hz Ported Box 75 liters. F3=37Hz Ported Box 100 liters. F3=35Hz
Junco The Junco is based on an 8″ vintage Vifa M21WO-39-08 woofer. I bought this woofer the same time as my PL18WO-09-08, which is about 20 years ago. It stayed
Vifa M21WO-39-08 8″ Woofer Frequency ResponseVifa M21WO-39-08 RAW Frequency Response. Baffle Width=10.5″, Box=20L BR, Mic on axis, No Smoothing, Impulse Window=5ms. Measurements below 500Hz is Nearfield. Download ZIP M21WO_FRD M21WO_ZMA M21WO-39-08