Oris 150 roll off natural or needs Xover (BD-Design)

by Bert , Saturday, August 25, 2018, 12:56 (2072 days ago) @ ThomasT

Hi Thomas,

I read from Bert that the Oris 150 natural fc is 150. Not being a techie, does this mean that the Oris 150 naturally rolls off at 150Hz. Transcendent Sound, TS, has a Sub Buddy where one can set that frequency cut/roll óff. TS claims that if the frequency is set say to 120hz the full range driver doesn't need to struggle to go deep as possible with long cone excursions. TS claims this would clean up the mid range. Any suggestions Bert?

The Oris 150 does not give extra sensitivity or ouput below 150Hz, there is a natural roll-off starting at around 220-200Hz depending the used driver, on the rearchamber internal volume and if it is closed or not.

If fully open then there is much less output at 150Hz and the roll-off is much steeper.

Setting a crossover at 100-120Hz (second order!) does not change the output much but it will highly reduce the mechanical movement of the driver at the lower frequencies.

My advice would be to use a crossover if you play loud, if not then it is not needed. You can check the movement of the driver at your normal listening levels while playing deep bass sounds..

Bert

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