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<blockquote data-quote="Jim McKeveny" data-source="post: 133630" data-attributes="member: 2978">Re: No compromises front loaded double 18” cabI am very late to this thread, but I do have some thoughts regarding the &quot;bowtie&quot; port arrangement, and shared/near-shared ports in general:By eliminating the port divider, we substantially reduce frictional/laminar losses and turbulence, no? The reduction in losses permits marginally smaller overall port size, which can be used to render either greater available volume per chamber (for a fixed cabinet size), or an overall reduction in cabinet size. Both of these are design pluses.The concept of saving the adjacent &quot;tuning&quot; should one driver fail is a red herring. Modern speakers, like headlights or dual truck tires, tend to fatigue and fail closely and should be replaced as matched pairs. Both drivers are likely quite out of spec by the time one gives up the ghost. The presence of the divider simply for this end-of-driver-life scenario seems heavy handed. We can usefully stiffen the cabinet otherwise.The divider is also a unique and substantially sized panel, so it may not be best use of time and materials.Just a thought...</blockquote>

[QUOTE="Jim McKeveny, post: 133630, member: 2978"] Re: No compromises front loaded double 18” cab I am very late to this thread, but I do have some thoughts regarding the "bowtie" port arrangement, and shared/near-shared ports in general: By eliminating the port divider, we substantially reduce frictional/laminar losses and turbulence, no? The reduction in losses permits marginally smaller overall port size, which can be used to render either greater available volume per chamber (for a fixed cabinet size), or an overall reduction in cabinet size. Both of these are design pluses. The concept of saving the adjacent "tuning" should one driver fail is a red herring. Modern speakers, like headlights or dual truck tires, tend to fatigue and fail closely and should be replaced as matched pairs. Both drivers are likely quite out of spec by the time one gives up the ghost. The presence of the divider simply for this end-of-driver-life scenario seems heavy handed. We can usefully stiffen the cabinet otherwise. The divider is also a unique and substantially sized panel, so it may not be best use of time and materials. Just a thought... [/QUOTE]

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