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<blockquote data-quote="klassic" data-source="post: 962197" data-attributes="member: 559732">generally speaking the SQ of a ported box above its tuning frequency (assuming its a quality driver in a suitable box) is so close to the SQ of a sealed box its really not going to make a difference for most people. Thats why for SQ ported boxes are always ported low. If a box is tuned to 28hz you really arent sacrificing much except below 28hz but gain alot of output. If a box is tuned at 40hz you obviously are going to sacrafice quite a bit for higher output at upper bass frequencies.The problem is so called REAL sound quality recording material includes windpipes and instruments and shit that may go down into the teens. If you listen to classical or so called sq material that actually does have an extended low end you really dont have a choice but to go sealed. For 90% of the people here a ported box tuned in the high 20&#039;s will sacrifice virtually nothing to a sealed box with the kind of music they play. that being said I use a sealed box for the simple facts that a) sealed play plenty loud for me and b) A box that fits my car is 1rt priority not a box that suites a particular speaker best. that means fiberglass, odd shaping, unknown volume prior to completion, smaller size box and all the variables that would make attempting to tune a ported box a big mess. A big slot ported box taking up my entire hatch space wont happen before hell freezes over.</blockquote>

[QUOTE="klassic, post: 962197, member: 559732"] generally speaking the SQ of a ported box [B]above its tuning frequency[/B] (assuming its a quality driver in a suitable box) is so close to the SQ of a sealed box its really not going to make a difference for most people. Thats why for SQ ported boxes are always ported low. If a box is tuned to 28hz you really arent sacrificing much except below 28hz but gain alot of output. If a box is tuned at 40hz you obviously are going to sacrafice quite a bit for higher output at upper bass frequencies. The problem is so called REAL sound quality recording material includes windpipes and instruments and shit that may go down into the teens. If you listen to classical or so called sq material that actually does have an extended low end you really dont have a choice but to go sealed. For 90% of the people here a ported box tuned in the high 20's will sacrifice virtually nothing to a sealed box with the kind of music they play. that being said I use a sealed box for the simple facts that a) sealed play plenty loud for me and b) A box that fits my car is 1rt priority not a box that suites a particular speaker best. that means fiberglass, odd shaping, unknown volume prior to completion, smaller size box and all the variables that would make attempting to tune a ported box a big mess. A big slot ported box taking up my entire hatch space wont happen before hell freezes over. [/QUOTE]

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