I ordered the Elac Sub Woofer S10.2 from ProHiFi after considering various factors like budget, no. of hours to be played, room size, corner to be placed, sound signature etc.
I connected with my Denon stereo amplifier and played some music from my audio cd and Apple music and at first I felt the bass is just subtle and was not impactful. However, when I changed the genre type or chose music with good bass the entire experience was changed. It was deep and shaking the room. I have placed the sub within my TV cabinet to save space but I am sure the sound will be better if I place it outside.
Could have been better:
1) If the control knobs were put in front.
2) May bring fatigue to your ears due to deep and punchy bass, specially if you prefer soft music. This is applicable for medium to long listening (over 1 hour)
Overall Recommendation: If you are looking for a sub within budget and want to rock and shake then just go with this.