![Any idea why null near before 1khz, attached pic is center speaker but SAME is for front left and right speaker. No acoustic at back wall as I have the entrance door Any idea why null near before 1khz, attached pic is center speaker but SAME is for front left and right speaker. No acoustic at back wall as I have the entrance door](https://i.redd.it/20m2flhmzm981.jpg)
Any idea why null near before 1khz, attached pic is center speaker but SAME is for front left and right speaker. No acoustic at back wall as I have the entrance door
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2db Kenwood KMF-X9000 THX Ultra minősítésű, hidalható 2x285W sztereó monoblokk-pár! Kiváló hang/erő! - HardverApró
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Walkie Talkie Earpiece,7.1mm Throat Mic Earpiece Retractable Walkie Talkie Headset with U94 PTT for Motorola XIR P8268 P8668 : Amazon.ca: Electronics
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