getting a nasal hum in music, vocals

theChris · 3rd November 2003, 12:44 AM

i get a hum which i assume is from some form of resonance. the boxes are sealed, with the drivers offset and no two distances equal, partially filled with polyester filling. 0.75" MDF. either that or it is a wireing problem raising Qtc. also, the speakers have a flat bottom, which is seperated from my desk by a layer of box carpet. any ideas or help? driver is a dayton 6.5" sheilded speaker, box size is like 0.3 cubic foot each.

Volenti · 3rd November 2003, 06:46 AM

The polyester fill by it's self isn't enough, you'll need to line the inside walls with a heavy lossy material, carpet underlay, bitumen, lead sheet ect.

3rd November 2003, 12:44 AM	#1
theChris diyAudio Member Join Date: Dec 2001 Location: SIUE, Illinois, USA	getting a nasal hum in music, vocals i get a hum which i assume is from some form of resonance. the boxes are sealed, with the drivers offset and no two distances equal, partially filled with polyester filling. 0.75" MDF. either that or it is a wireing problem raising Qtc. also, the speakers have a flat bottom, which is seperated from my desk by a layer of box carpet. any ideas or help? driver is a dayton 6.5" sheilded speaker, box size is like 0.3 cubic foot each. __________________ if only it could be used for good, not evil...

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3rd November 2003, 06:46 AM	#2
Volenti diyAudio Member Join Date: Aug 2003 Location: Australia	The polyester fill by it's self isn't enough, you'll need to line the inside walls with a heavy lossy material, carpet underlay, bitumen, lead sheet ect.

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