2. misc-audio
  3. 1118535224

How can I get rid of a 4khz-8khz room spike?

Using different speakers in various positions and measuring room response with a RS SPL meter, I get a consistant 10 db spike over the 4-8 khz range in my small 11x13 listening room. I have just installed a full complement of room tunes and now must decide on other acoustic treatments and/or tweaks to incorporate. I have yet to place anything other than a small loveseat and leather chair in the room, so the walls are barren. What would best attenuate this 4-8khz bump - wool tapestries, rigid fiberglass, diffusion panels, other???
nanotweeter

Showing 1 response by cdc

cdc
1,663 posts
 
I have a similar room - 13' x 15' and highly reflective. Nasty 8 dB peak in same area you have. At one point I had the room entirely covered with carpets and blankets and such and still the same peak. Didn't matter which speakers I used until.....
I have now solved the problem by changing speakers - and no acoustic treatment. I went to a single driver speaker which beams over 3kHz so no room reflections. Works GREAT in a small room such as yours. It's like listening to headphone but with great soundstaging.
Some good full range drivers:
Jordan JX92s (~$310/pr)
Adire WR-125 or FR-125 from www.creativesound.ca ($150/pr)
Tang-Band W4-1320 available July from www.partsexpress.com ($75/pr.)
Other brands: PHY, AER, and Fostex FR-120 or FR-200.
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