Systems ListDanley Sound LabsDTS-10 kit

Measurement Details

AmplifierPowersoft Digam K10
Outside Temperature80 F
Date TestedAug 8, 2011
Tuning Freq. Of Test14.5 Hz
Settings & Equalization
  • 12.5Hz 4th order Butterworth high pass filter

Notes

This subwoofer produces notable output all of the way down to the 12.5Hz band but it's most powerful at 15Hz and above. The drivers unload from the cabinet very quickly below 14Hz so a steep high pass filter is recommended at about 12.5hz if you are going to drive it to its limits with home theater bass. The in band excursion maximum is at about 20Hz. If driven hard enough the system will produce some overload noise there. This was the area that limited the maximum sweep levels during the power compression test.

Using the CEA2010 burst test the DTS-10 offers high output levels and between 63-100Hz it can produce very high output indeed thanks to the extra efficiency. The frequency response of the DTS-10 is very rough natively and unusable above 100Hz. It needs addressed with EQ to transform it into something listenable. It also exhibits notable ringing in the time domain at 54, and 100Hz. Both are areas that need aggressively cut with EQ fortunately which will help improve the audibility of this somewhat. The distortion performance of the DTS-10 is much rougher than what would normally be seen due to the complex loading on the drivers that the tapped horn cabinet provides. There are many large impedance fluctuations, excursion fluctuations and changes in loading on the drivers. This results in distortion that fluctuates wildly as well depending on the frequency. Some areas a very high and other frequencies are very low in distortion. Some areas have the distortion harmonics greatly amplified by the loading of the tapped horn enclosure. For example at 27Hz the 2nd harmonic is boosted by the 54Hz peak and the 3rd harmonic also gets amplified acoustically at 81Hz. Listening to the DTS-10 does not sound like you would expect from looking at the distortion performance. It is not as obvious as you would believe. Between 13-26Hz octave the DTS-10 is exceptionally clean and high output and has a different signature than other systems. Ideally the DTS-10 should be crossed over below 60Hz for best performance.

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