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What is the most dramatic way of increasing a speaker's Bass and Low mid?

Hi-

I am wondering what would give the most dramatic increase in bass and low mid projection/Volume, even on account of accuracy ...


My speakers can go down to 28hz but i need to boost it’s level, not frequency extension. They are 2 way with bass reflex port. 6.5" woofer size and a tweeter. Floor standing.

My floor is old hardwood strips.

placement and coupling methods are the first things that come to mind. I do not want to add an equalizer at this point.

Spikes, footers, concrete platform, direct floor flush contact? anything and everything that YOU know works.
Speculations on untested methods are not needed as i need real life experience from people.

Thanks!
Rea

128x128dumbeat
dumbeat's avatar
dumbeat OP
108 posts
 
Awesome information Duke! Thanks.
It does sound also like Bi Amping can maintain the nature of the speakers somewhat but alter the relationship between tweeter and woofer. Would you say that is a better way to go than EQ'?
dgarretson
2,593 posts
 

Actually, one way to embellish and raise output of the Scanspeak 8545 mid/woofer relative to the Esotar tweeter is to add a Scanspeak bucking magnet. This doubles the 8545's magnet structure and raises output by several db-- as suggested by Tony Gee of Humble HiFi, who did this with 8545s in some project speakers.  I followed him with this mod in my VSMs.  Another improvement is to power the BBAM with a higher quality +/- 12V LPS than the batteries or AC supply in the stock unit.

dumbeat's avatar
dumbeat OP
108 posts
 
Interesting, How is the 8545 mod is done exactly?
dumbeat's avatar
dumbeat OP
108 posts
 
By the way, as far as amps go, which would give more "Warm" "Full" sound (100hz-400hz) and a bit more forgiving, mellower high mids (2khz-4khz)?

SET? OTL? Push pull? Out of those any particular one to match well with the merlins? they do not need a lot of power. I can get by with 30wpc easily at my listening enviournment, and the Impedance is not suppose to fall bellow 7ohm if im correct.
dgarretson
2,593 posts
 
Rough sand off the lacquer coating the perimeter of the steel plate that covers the stock magnet. Rough sand the mating surface of the donut shaped bucking magnet. Place the driver face down on a level surface. Thinly coat both surfaces with 5 minute strong epoxy. Apply the bucking magnet in the correct direction. (It will be repelled as it approaches the stock magnet and attracted when in close proximity.) Make minor adjustments to align the magnet as the epoxy stiffens to ensure that the two magnets are concentric with each other and thus the voice coil.
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