merlin vsm owners , what is your room size ?

I had a REL storm 3 sub before in the same room. Some how did not like it.

Problem with bam is BAM will cut off frequencies below 30HZ. so what is going to SUB from amp speaker end is cut off below 30HZ.

Another option is i can use the Second OUT from CD player directly to SUB.Then i will get frequencies below 30HZ

I am open to try a new sub which is fast as merlin and has no port.

Just one idea for you to consider:

Per my post above, the VSM's low end response is IME quite sensitive to boundary reinforcement. You have the speaker about 4 1/2 feet out from the wall behind them - great for imaging, not so great for fullness in the mid-bass. I'd try halving the distance between the speakers and that wall. Ignore any imaging issues for a moment and just get a feel for the change in tonal balance in the lower registers at the new room position.

It may lead you to a better listening experience via a simple change of room positioning, it may lead you to consider the addition of a subwoofer (notwithstanding the BAM related issues you mention), or it may lead you to conclude that you'd prefer a different speaker in that room. In any event, it's probably a worthwhile experiment - simple, free and (for better and/or worse) probably educational.

Martykl,

i have tried your idea before. 1 or 2 inches can be taken back. more than that will give a compressed sound. And the low bass increases and not the mid bass, i felt so.

i feel the ARS sonum GRAN filarmonia may give what i am looking for. because the Fila SE gives a better bass punch than many other amps. So GRAN fila may fill the room better

Masilu,

Your idea about using the second out loop on your CD player would seem to be on the right track as your goal is to connect the sub in such a way that it operates independently from the BAM. Other options are to drive the sub either from your preamp, say a "record" loop, or a pre-out tap if you are using an integrated amp that provides that function.