Thought I'd post some observations regarding a small modification to a Subwoofer.
Firstly, some perspective: I have three Subs, two of which are fairly new and both on their standard rubber feet.
I also have an older JPW Sub that came fitted with spikes. The floor in my listening space is tiled. Lately I picked up an annoying vibration in my system when this Sub is in use. I checked all of the usual suspects first; furniture and loose items in close proximity, equipment stands, speakers, etc.
This weekend, during my frustrated search, and quite by accident, I happened to lean on this Sub and the infernal vibration disappeared - and had an AHA! moment regarding the source. So, uncouple and systematically check everything. To make a long story short, everything tight and woofer OK - turns out to be the spikes on the tile floor.
So, remove the spikes. Had some rubber feet spare which I was able to fit with some 6mm bolts, nuts and some washers - and that's it...
Obervations:
1. The vibration is cured.
2. The bass has improved. It is somehow tighter, slightly better defined and louder - to the extent that I had to turn the Subwoofer volume down a couple of notches.
3. The Sub is now much easier to physically move around and adjust for position.
All-in-all this was a small modification that was really worthwhile, in my opinion.
Firstly, some perspective: I have three Subs, two of which are fairly new and both on their standard rubber feet.
I also have an older JPW Sub that came fitted with spikes. The floor in my listening space is tiled. Lately I picked up an annoying vibration in my system when this Sub is in use. I checked all of the usual suspects first; furniture and loose items in close proximity, equipment stands, speakers, etc.
This weekend, during my frustrated search, and quite by accident, I happened to lean on this Sub and the infernal vibration disappeared - and had an AHA! moment regarding the source. So, uncouple and systematically check everything. To make a long story short, everything tight and woofer OK - turns out to be the spikes on the tile floor.
So, remove the spikes. Had some rubber feet spare which I was able to fit with some 6mm bolts, nuts and some washers - and that's it...
Obervations:
1. The vibration is cured.
2. The bass has improved. It is somehow tighter, slightly better defined and louder - to the extent that I had to turn the Subwoofer volume down a couple of notches.
3. The Sub is now much easier to physically move around and adjust for position.
All-in-all this was a small modification that was really worthwhile, in my opinion.
