Markaudio CHP-70-P Gen2 Frequency Response Measured Frequency Response The frequency response above is with the CHP70 mounted onto a sealed box of 7 liters. Baffle width is 8″. Generally, the… Read more >
michael chua
November 12, 2023
Drivers Evaluation, HIFI DRIVERSCHP70, Full Range
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SB12PFCR25-4 Frequency Response Fig 1 – SB12PFCR25-4 Woofer and Tweeter RAW responses • Sealed Box=7 liters • Baffle Width=8″ After my disappointment with the 6″ SB Acoustics SB16PFCR25-4 Coaxial, I… Read more >
michael chua
November 11, 2023
Drivers Evaluation, HIFI DRIVERS4", Coaxial, SB Acoustics, SB12PFCR25
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SB16PFCR25-4 Frequency Response I was looking forward to working with this 6″ coaxial by SB Acoustics until I measured the woofer and tweeter responses. Instead of what is shown in… Read more >
michael chua
November 5, 2023
Drivers Evaluation, HIFI DRIVERS6", Coaxial, SB Acoustics, SB16PFCR25-4
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Thiele & Small Parameters Thiele & Small Parameters (after 24hrs Break-in) It’s not often I pay $240 for a woofer but after being hugely impressed with the Scanspeak 15WU/4741T00 Illuminator,… Read more >
michael chua
November 4, 2023
Drivers Thiele & Small, HIFI DRIVERS18W4531, 7", Scanspeak, Thiele&Small, Woofer
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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
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 Thiele & Small Parameters (before Break-in) Ported Box=15 liters • Fb=50Hz • Q=0.61 (Manufacturer’s T/S) Ported Box=15 liters • Fb=50Hz • Q=0.58 (DATS T/S) Recommended Ported… Read more >
michael chua
November 2, 2023
Drivers Thiele & Small, HIFI DRIVERS6-1/2", Dayton, GF180, Glass Fiber, Thiele&Small, Woofer
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Thiele & Small Parameters Thiele & Small Parameters (before Break-in) Ported Box=20 liters • Fb=40Hz • Q=0.66 (Manufacturer’s T/S) Ported Box=20 liters • Fb=40Hz • Q=0.79 (DATS T/S) Ported Box=20… Read more >
michael chua
November 1, 2023
Drivers Thiele & Small, HIFI DRIVERS8", F8, HiVi, Woofer
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Thiele & Small Parameters Thiele & Small Parameters (before Break-in) Sealed Box=24 liters • F3=46Hz • Q=0.81 (Manufacturer’s T/S) Sealed Box=24 liters • F3=51Hz • Q=0.94 (DATS T/S) Ported Box=24… Read more >
michael chua
October 31, 2023
Drivers Thiele & Small, HIFI DRIVERS8", HiVi, M8N-1B, Metal Cone, Thiele&Small, Woofer
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Dayton PC83-8 Review Dayton PC83-8 Frequency Response (manufacturer) The plot above is from Dayton. It shows a flat response from 1kHz~10kHz. After that, the cone breakup extends the super highs… Read more >
michael chua
August 31, 2023
HIFI DRIVERSDayton, Evolve, Full Range, PC83
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