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<blockquote data-quote="Marjan Milosevic" data-source="post: 75894" data-attributes="member: 132">Re: Tour Products &quot;Tour Sub &amp; Tour Trap&quot;B2 also has a punch, i am not saying that PB6 has no punch, but the particular box in question. BTW the B2 is a hybrid BP6/horn box, so the horn in front of the front BP chamber is gaining some dbs at the punch area.SB1000 is not entirely BP6. It does have sort of a front chamber from the clam shelf loading but still not a true BP6. This should also apply to the fulcrum boxes. The problem i see with BP boxes is that they do sound a bit &quot;slow&quot;. The group delay it rising rapidly at the lower tuning point and not much can be done about it.Designs where you can actually see the drivers (KV2 boxes as example, or RCF) has a lot of punch, but to my understanding this is actually an artifact from the distortions (think reflex box). At a true BP6 (where you can not see the driver) this is not the case since the box it self is filtering the distortions.</blockquote>

[QUOTE="Marjan Milosevic, post: 75894, member: 132"] Re: Tour Products "Tour Sub & Tour Trap" B2 also has a punch, i am not saying that PB6 has no punch, but the particular box in question. BTW the B2 is a hybrid BP6/horn box, so the horn in front of the front BP chamber is gaining some dbs at the punch area. SB1000 is not entirely BP6. It does have sort of a front chamber from the clam shelf loading but still not a true BP6. This should also apply to the fulcrum boxes. The problem i see with BP boxes is that they do sound a bit "slow". The group delay it rising rapidly at the lower tuning point and not much can be done about it. Designs where you can actually see the drivers (KV2 boxes as example, or RCF) has a lot of punch, but to my understanding this is actually an artifact from the distortions (think reflex box). At a true BP6 (where you can not see the driver) this is not the case since the box it self is filtering the distortions. [/QUOTE]

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