Audiophilepure

https://www.soundstagehifi.com/index.php/equipment-reviews/2040-svs-sb17-ultra-r-evolution-subwoofer

Next, I took some frequency response sweeps with the microphone at my listening position. In the audio band where the subwoofer was operating, this revealed a large peak at 26Hz and a smaller dip at 36Hz. Both of these frequency aberrations were also present in the output of the pair of Arendal speakers alone, indicating they were being caused by the room response, rather than originating from the speakers or subwoofer. However, adding the SB17 only served to further exaggerate both modes, so I used the six-band parametric EQ on the SVS app to try and tame them. I was able to reduce the size of the 26Hz peak by lowering the energy at this frequency by 10dB in the app. Similarly, by adding a 6dB boost at 36Hz, I was able to increase the output enough to produce a small shoulder that somewhat mitigated the loss of energy in this region. I’d be curious to see how well SVS’s room-equalization function would deal with these peaks and troughs in my listening room, but in the absence of this or other room-correction software, it wasn’t possible to further flatten the response in my room. It’s well known that rooms tend to dominate how systems perform below 300Hz, and mine is no different.