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Single Ended Triodes (SETs), the ultimate tube lovers dream.

Never tried it ...

24.18.240.124

Basically there are two choices:

1) A highpass tuned at or near the port tuning. This protects from excessive excursions below the port tuning. In my experiments, I tuned the box to 49Hz, so the main benefit of such a filter would be to reduce inputs below, say, 35Hz. Significant for certain orchestral and organ music, but probably not much effect or rock, jazz, etc.

2) A highpass much higher - say, at 100Hz - so it effectively makes a crossover to a sub. Here the effect would be similar to the sealed box. The ported enclosure cutoff will mess up the phase relation of the crossover if the cutoff frequency is too close to the box frequency. This is one of two main integration problem with subs in general. (The other is that even if the crossover is clean and dual subs are located close to the mains, the room acoustics are a mess in the deep bass!)


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  • Never tried it ... - Paul Joppa 11:36:21 01/07/07 (0)


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