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<blockquote data-quote="Peter Morris" data-source="post: 148027" data-attributes="member: 652">Re: No compromises front loaded double 18” cabThe simple answer is there is no free lunch – If you have a standard reflex enclosure you can make it smaller (B6 alignment) still get the same output and extension by using EQ.&nbsp; You will not exceed Xmax … BUT … that 6 dB of boost needed to get the alignment flat will mean you need up to 4 times the power for the lowest frequencies … and probably exceed the thermal rating of the driver trying to achieve the same output.If you don’t make the box smaller then you can tune the box lower and your speaker will have more bass extension and still have a flat response with the B6 alignment boost (6dB), but it becomes very easy to exceed Xmax.&nbsp; You will be able to go low but your maximum output will be compromised.If you model all of this you will see what happening, but be careful, the 6 dB EQ boost added in many of the simulation programs does not include 6 dB boost in the power calculations.</blockquote>

[QUOTE="Peter Morris, post: 148027, member: 652"] Re: No compromises front loaded double 18” cab The simple answer is there is no free lunch – If you have a standard reflex enclosure you can make it smaller (B6 alignment) still get the same output and extension by using EQ. You will not exceed Xmax … BUT … that 6 dB of boost needed to get the alignment flat will mean you need up to 4 times the power for the lowest frequencies … and probably exceed the thermal rating of the driver trying to achieve the same output. If you don’t make the box smaller then you can tune the box lower and your speaker will have more bass extension and still have a flat response with the B6 alignment boost (6dB), but it becomes very easy to exceed Xmax. You will be able to go low but your maximum output will be compromised. If you model all of this you will see what happening, but be careful, the 6 dB EQ boost added in many of the simulation programs does not include 6 dB boost in the power calculations. [/QUOTE]

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