Home Speaker Asylum

General speaker questions for audio and home theater.

Advice on Building Passive Sub

I want to make a pair of "snappy" passive subwoofers for my music system, driven by a 50 watt per channel external amp. I have the really low bass spectrum covered 30hz- 20hz, with an active sub... but what I want to hit is that "impact region" the "punch in the gut" area.. I am guessing this is 100hz - 50hz range? My speakers do cover this range but I feel they could use a boost, I am just not totally feeling the "snap" from the drums.. they sound great but would like a bit of impact..

I do not have a ton of experience with driver selection and enclosure types, but some basic guidance may be all I need..My first off hand guess is that a nice 6.5 inch driver in a .8 cubic ft. sealed enclosure or PR enclosure, might be the way to go for what I want. ...was looking at this driver from madi-sound.. is it adequate?

https://www.madisoundspeakerstore.com/peerless-woofers-6-7/peerless-830657-6.5-sds-woofer/

I have a good quality electronic cross over that will allow me to adjust the lower range and volume of the amp so I can dial that in, but I think I may need something to cut off the high frequency, if 100Hz seems like the right point at which to cut this off for an 8ohm driver such as this, would 1.2mh inductor be the approx value I am after..? would it still be wise to cap off the super low range 45hz and lower?

any ideas on a design for achieving what I am after, or warnings not to try this, would be would be greatly appreciated..

thanks

J


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Topic - Advice on Building Passive Sub - mr9iron 16:57:30 12/17/14 (10)

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