Vifa M25WO-49-08 Thiele & Small Parameters Thiele & Small Parameters (before Break-in) Ported Box=35 liters • F3=40Hz (Manufacturer’s T/S) Ported Box=35 liters • F3=40Hz (DATS T/S) Ported Box=55 liters •… Read more >
michael chua
November 3, 2023
Drivers Thiele & Small, HIFI DRIVERS10", M25WO, Vifa, Vintage, Woofer
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Vifa M21WO-39-08 Thiele & Small Parameters Thiele / Small Parameters (before Break-in) Ported Box=20 liters • Fb=45Hz • Q=0.75 (Manufacturer’s T/S) Ported Box=20 liters • Fb=45Hz • Q=0.75 (DATS T/S)… Read more >
michael chua
November 3, 2023
Drivers Thiele & Small, HIFI DRIVERSM21WO, Vifa, Vintage, Woofer
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Thiele & Small Parameters (before Break-in) Ported Box=35 liters • Fb=45Hz (DATS T/S) Ported Box=35 liters • Fb=40Hz (DATS x0.9) Ported Box=45 liters • Fb=40Hz (DATS T/S) Ported Box=45 liters… Read more >
michael chua
December 26, 2018
Car Subwoofers10", Car Subwoofers, Gold Series, Pyramid, thiele small, Vintage
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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… Read more >
michael chua
December 25, 2018
ProjectsBandpass, Pyramid, Subwoofer, Vintage
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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… Read more >
michael chua
October 14, 2018
Amplifiersamplifier, SAE 3100, Vintage
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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…. Read more >
michael chua
May 4, 2018
Car Subwoofers18", Car Subwoofers, PW1870, Pyramid, Vintage
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Vintage Pyramid PW1090-US Thiele & Small Parameters Ported Box=25 liters • F3=60Hz Ported Box=35 liters • F3=53Hz Updated on Nov 1, 2023
michael chua
May 4, 2018
Car Subwoofers, Drivers Thiele & Small10", Car Subwoofers, PW1090, Pyramid, Vintage
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Vintage Pyramid PW1290-US Thiele & Small Parameters Ported Box=45 liters • Fb=48Hz (DATS T/S) Ported Box=55 liters • Fb=48Hz (DATS T/S) Ported Box=75 liters • Fb=45Hz (DATS T/S) Updated on… Read more >
michael chua
April 30, 2018
Car Subwoofers12", Car Subwoofers, PW1290, Pyramid, Vintage
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Vifa M25WO-49-08 Thiele & Small Parameters Thiele & Small Parameters (before Break-in) Ported Box=35 liters • F3=40Hz (Manufacturer’s T/S) Ported Box=35 liters • F3=40Hz (DATS T/S) Ported Box=55 liters •… Read more >
michael chua
April 26, 2018
Drivers Thiele & Small, HIFI DRIVERS10", M25WO, Vifa, Vintage, Woofer
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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… Read more >
michael chua
March 17, 2018
ProjectsHiVi, Junco, M21, TN28, Vifa, Vintage, Woofer
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