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Low Earth Orbit
DIY Audio
New DIY Mid High (90deg) - AKA PM90
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<blockquote data-quote="Peter Morris" data-source="post: 147327" data-attributes="member: 652"><p>Re: New DIY Mid High</p><p></p><p></p><p></p><p>Hi Kevin,</p><p></p><p>Here are the frequency/power response plots. Note - these power response plots do not account for directivity. The increasing directivity will cause the HF region to be much more efficient than shown. Unfortunately Hornresp can't model directivity with 2 part ported horn. </p><p></p><p>The 810 looks good except its Xmax is limited compared to the RCF. ( 2.5mm Vs 5.5mm but they are measure / calculated differently - I suspect the BMS has a useful Xmax of more like 4.5mm)</p><p></p><p>The 802 response doesn't look particular good but the Xmax is fine.</p><p></p><p>The trick with the RCF was the 3.5" VC which resulted in a relatively light Mms and high BL product that's need in this design, while still allowing a reasonable Xmax and power handling.</p></blockquote><p></p>
[QUOTE="Peter Morris, post: 147327, member: 652"] Re: New DIY Mid High Hi Kevin, Here are the frequency/power response plots. Note - these power response plots do not account for directivity. The increasing directivity will cause the HF region to be much more efficient than shown. Unfortunately Hornresp can't model directivity with 2 part ported horn. The 810 looks good except its Xmax is limited compared to the RCF. ( 2.5mm Vs 5.5mm but they are measure / calculated differently - I suspect the BMS has a useful Xmax of more like 4.5mm) The 802 response doesn't look particular good but the Xmax is fine. The trick with the RCF was the 3.5" VC which resulted in a relatively light Mms and high BL product that's need in this design, while still allowing a reasonable Xmax and power handling. [/QUOTE]
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New DIY Mid High (90deg) - AKA PM90
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