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Low Earth Orbit
DIY Audio
60 Degree DIY Mid Hi - AKA PM60
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<blockquote data-quote="Peter Morris" data-source="post: 145410" data-attributes="member: 652"><p>Re: 60 Degree DIY Mid Hi</p><p></p><p></p><p></p><p>Thanks Mark,</p><p> </p><p>I wasn’t worried – I did a quick check of the loop back impulse just to make sure the ringing I was seeing in the impulse measurement was in fact being mostly being generated by the FIR filters within the measurement system. It is a textbook response. The “need a better system” was just a throwaway line <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~:smile:</p><p> </p><p>The VHF section of the HF driver is extremely efficiency. To do that it has a very high resonate frequency. I was checking to make sure there were no issues hidden in the measurement.</p><p></p><p>If you make allowance for measurement systems pre and post ringing, the impulse response of this PA speaker is quite stunning.</p><p></p><p></p><p>Thanks again.</p></blockquote><p></p>
[QUOTE="Peter Morris, post: 145410, member: 652"] Re: 60 Degree DIY Mid Hi Thanks Mark, I wasn’t worried – I did a quick check of the loop back impulse just to make sure the ringing I was seeing in the impulse measurement was in fact being mostly being generated by the FIR filters within the measurement system. It is a textbook response. The “need a better system” was just a throwaway line :)~:-)~:smile: The VHF section of the HF driver is extremely efficiency. To do that it has a very high resonate frequency. I was checking to make sure there were no issues hidden in the measurement. If you make allowance for measurement systems pre and post ringing, the impulse response of this PA speaker is quite stunning. Thanks again. [/QUOTE]
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60 Degree DIY Mid Hi - AKA PM60
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