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There could be many reasons for that. The most common would be your audio setting or the signal coming into your receiver for your audio source. The first time you listened to the sub it may have been from a true digital signal. There other times you may have been listening to an analog signal and or a upscaled to mimic digital signal from your receiver (PCM) There would be night and day difference in sound and bass response. Check to see if you're receive is set to digital signal....Dolby Digital any form, DTS any form. Check to see if your audio source to your receiver is set to uncompressed , DTS......Dolby Digital Last: If you can check your sub wire, test it by replacing it. I recommend 1 wire to the LFE input (receiver to sub)
Sorry, there was a problem. Please try again later.Hi. There are too many possibilities to list. However, it could be the speaker is breaking-in and frequencies are adjusting a bit, cable going bad, or room dynamics. Start with the easiest triage and try re-calibrating amp speaker levels (E.g., automated setup). Don't worry about the subwoofer volume knob physical position - just dial it to where it sounds correct. If it runs fine without issues, you're good to go - no worries! Oh, and as I posted in a review, if your amp has a second subwoofer line-out, get a second unit and run dual subs! The full-room bass immersion is just awesome and you'll never have to worry about level again!!! I hope this helps.
Sorry, there was a problem. Please try again later.Do you have a large living room? If you do, I would get a more powerful Denon receiver. That sub is way too powerful for that 75W receiver. To get the right balance, your sub is not working hard enough to push that speaker. So you end up turning it up and then that's too much. If your room is small to medium in size, you really should have gotten a 300 to 400W Sub. Less power to push a lesser wattage speaker. I have the same wattage receiver as you and my 400W - 12" Klipsch sub is perfect. I know that speakers have different specs like wattage and ohms. They are each designed to handle different powered amps. Speakers have nice sweet spots, where they come alive. Just stuff to think about. If it were me, and I had a large room, I would get a more powerful receiver. :) Here's your chance. LOL
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