Weird subwoofer performance (low volume)
Mar 22, 2012 at 12:13 AM Thread Starter Post #1 of 3

shrimants

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I have a Dayton Titanic MkIII 10 inch subwoofer that I built. I'm using it with Audioengine A5's. Both are connected directly to the line out of my AMB Gamma 2 Full++.

For some reason, the subwoofer just sounds "lazy". There isnt a clear point at which it changes notes, it sounds like its "sliding" from one note to the next instead of reacting quickly. There was a song by Flux pavillion that I listened to that has some really fast arpeggios in it and that song did OK but also sounded like the subwoofer was trying with everything it had just to keep up. The sound of the subwoofer right now kind of blends into the background. Its not so much soudning like I have a subwoofer, its sounding like I have A5's with exceptional frequency response and some dull humming in the background that just happens to be on pitch with the song.

Do you guys have any ideas to what I can do to improve performance? I'm not averse to building my own box, ported or w/e. I have the datasheets for the driver and everything. The amp is a 240 watt classAB that runs rather hot. The subwoofer driver is 10 inches and the box is a sealed MDF enclosure.

Did I maybe put too much insulation material? My room is only 10x10 feet and i've experimented with various positions and I like where it is now because it doesnt have a bunch of loud and soft spots of bass throughout the room.
 
Mar 24, 2012 at 12:24 PM Post #2 of 3
I've recently purchased a set of speakers and have also been looking into placement to improve sound.  I'd suggest taking a look at your room's acoustics.  Not sure how your speaker placement is, but you can take a look at further improving speaker and sub placement: http://www.realtraps.com/art_room-setup.htm.  Additionally, you may need bass traps or different placement if you are getting one-note bass.  Here's a page for basics on measuring the room.  http://www.realtraps.com/art_measuring.htm
You can buy a calibrated mic + phantom power setup or build a basic microphone.  Based on a Linkwitz's design, this very basic mic will measure the bass frequencies well, but probably not very good for mids and highs.  http://www.avsforum.com/avs-vb/showthread.php?t=1325052
 
Mar 25, 2012 at 9:48 PM Post #3 of 3
well i definitely improved the bass performance. I turned the subwoofer 90 degrees clockwise (from top) and once I looked at the back i realized i connected the output of my DAC to the output of the subwoofer. so whatever bass i was getting was incidental. I wouldnt be surprised if i damaged something.

Anywyas, i'll try the room EQ stuff as now i still have big spots of random loud and soft bass, and certain notes resonate within my room.
 

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