@badri, I would recommend the following setup, which I am using with my Studio 148s,
to possibly help tighten up the bass you are concerned about:
Soundocity SEV9 outriggers:
http://www.soundocity.com/economical_products.html
I like them as they are easy to level the speakers as the spikes adjust from the top. Use them under the supplied ProAc plinth and do not use the supplied ProAc spikes.
Some speaker spike floor protectors like the discs shown here (unfortunate they do not sell just the protectors separately:
http://www.amazon.com/Sewell-Speaker-Spikes-4-Pack/dp/B0080JCMS6
8 hockey pucks from a sporting goods store (I got mine from Sports Authority).
The hockey pucks rest on my carpet with the metal speaker spike protectors on top of the hockey pucks and then the Soundocity SEV9 rest on the floor protectors. Easy to level and I really think this setup lets the downward firing port breathe and have the right distance between the floor and the port flare.
Soundocity SEV9 outriggers:
http://www.soundocity.com/economical_products.html
I like them as they are easy to level the speakers as the spikes adjust from the top. Use them under the supplied ProAc plinth and do not use the supplied ProAc spikes.
Some speaker spike floor protectors like the discs shown here (unfortunate they do not sell just the protectors separately:
http://www.amazon.com/Sewell-Speaker-Spikes-4-Pack/dp/B0080JCMS6
8 hockey pucks from a sporting goods store (I got mine from Sports Authority).
The hockey pucks rest on my carpet with the metal speaker spike protectors on top of the hockey pucks and then the Soundocity SEV9 rest on the floor protectors. Easy to level and I really think this setup lets the downward firing port breathe and have the right distance between the floor and the port flare.