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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: Oops - Reply intended for E-stat posted by Brian H P on January 17, 2025 at 12:56:10:
Look at the speaker's impedance graph you will see the first impedance spike is smaller than the second spike this is because the cabinet is too small of volume along with a port that is too small.
It is not an artifact from John's measurements. And Johns measurement Techniques are industry standard. And rooms really only effect from 200 HZ down. some will say 300 HZ down but that is wrong.
All speakers have always been measured one of two ways. Back in the day they used to measure all speakers @1 watt/2.83 volts at 4' through the years sensitivity decreased so they moved the mic closer to the speaker, so todays standard is still @1 watt/2.83 volts, but they moved the microphone one foot closer to increase sensitivity so industry standard today is @1 watt/2.83 volts at one meter.
Please do not think John Atkinson measurements are off I assure you they are spot on, and John is very knowledgeable and is not going to make mistakes he learned to measure from speaker designers over the years and he is doing everything right. He is one of the consumers only hope for the truth because the manufactures certainty are not going to be 100% truthful it will hurt their profits.
And these like many other speakers have been independently measured and those measurements posted online, and they are the same absolutely horrible !!!
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Follow Ups
- RE: Oops - Reply intended for E-stat - seancuster71@gmail.com 18:19:51 01/21/25 (0)
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