having the woofers in my sansui's wired separately as subs

[craig7]

so im selling my sub so i wanna have the woofers in my sansui's wired separately as subs since the way they are now, well.... its very disappointing. ive tried driving them as subs before with pretty decent results so i know they CAN be decent subs... i just need to have them wired separately from the other drivers... so... how am i to go about this? ive opened them up before to check out whats all in there... and i just am like "wat?"

pic:

so yeah... could i just cut the wires that go to the woofers (red wires) and attach them to a new binding post and it would be good? or would it mess everything up? fyi i can have my reciever change the crossover if necessary

it looks like the woofer wires go to a coil of wire which i am assuming is something related to the crossover
edit: apparently its called bi-wiring... yeah... thats what im talking about

 

[j_garcia]

BiAMPING is what you are talking about and no, it is really going to be much help in this case IMO. It will gain you nothing because the woofer will still perform at the same level it does now.

 

[craig7]

but if i bi amp it, it will be powered by a separate amp and i can have thw woofers turned up louder since the way they are now... well... you would think these speakers have 6" woofers... not 15's

 

[twoeyedbob]

As said,. they will be tied to the same channel..therefore the same volume...and getting the same power as they do now.
...well you kinda gain power(in theory) which would otherwise be used by the tweeter (0.005 watts ,ish) still tied to the same volume anyway..
If just bi-amped mine...no difference at all...cept a couple of seconds when my mind convinced me it was better
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[j_garcia]

but if i bi amp it, it will be powered by a separate amp and i can have thw woofers turned up louder since the way they are now... well... you would think these speakers have 6" woofers... not 15's

The problem is not that they lack the power, because they would sound better if you just crank it right now. If they don't then power isn't what they are lacking. The driver itself, though 15", likely doesn't extend very low and the cabinet is also most likely not designed to get it to do so. They used the large driver to increase output but that does not mean it is the same as a 15" driver designed for a high performance subwoofer.

If you don't mind semi-destroying the speakers (try to unplug rather than cut the wires if possible, at the woofer itself), I'd say you can give it a shot, but I won't put my money on a big improvement. It sounds like a very simple x-over, so I don't think disconnecting those wires will affect the functionality of the x-over to the other drivers.

 

[twoeyedbob]

Obviously subs have an inbuilt amp
And receiver's dont have the ability to actually power an lfe/.1 channel
I'm curious as to how you did it before ?


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[craig7]

Obviously subs have an inbuilt amp
And receiver's dont have the ability to actually power an lfe/.1 channel
I'm curious as to how you did it before ?

i have an old yamaha receiver that has a subwoofer amp built in... ive actually never own a subwoofer with a built in amp

 

[craig7]

i did it... not much of a replacement for my sub but it works. sounded kinda bad at first but my equalizer fixed it... it lacks deep bass but i knew it would... but at least it has some punch to it now... and with the sansui's bi wired with my sub running, its nice... even without my sub it sounds like you would expect a pair of speakers with 15" woofers to sound. not crazy bass like my sub but it sounds like there is about 200% more bass than there was before i bi wired them