Econowave prject? Infinity SM120

[rpampt]

I have a pair of Infinity SM 120's that need the woofs refoamed. 1 bad tweet and 1 bad mid. I already pulled the working tweet, mid and the 2 woofs. Threw the cabs on the dump pile, now I'm thinking maybe I should save the cabs.

1) Would a pair of Infinity SM 120's be a legitimate prospect to econowave?
2) Would I use the original cabs or need something different?

If these are not a good prospect, no big deal.

 

[Zilch]

Post a pic.

 

[Stuart Pedaso]

Threw the cabs on the dump pile, now I'm thinking maybe I should save the cabs.

At the very least, you may want to measure and record the cabinet internal dimensions and port dimensions.

Could save having to reinvent that part of the wheel later.

 

[karlo]

seriously , i have sm 120s , they just plain sound like crap . no amount of fixing's
'gonna make them sound great. the cabs are too thin and poorly braced for the
amount of air a 12" woofer pushes around... those polycell tweeters are a disaster
waiting to fail, and that mid is next to useless...........

maybe with a few 2x4s stoked inside, some fiberglas stuffing on the walls , a real
crossover , and a vifa tweeter.... might be listenable.

 

[rpampt]

Zilch... pics of cab or woofer, or both. These are literally on the dump pile, back in the field. Will have to go get them. Anybody else have pics of one?

 

[Sir.Byrd]

Don't bother IMO.

 

[Zilch]

Zilch... pics of cab or woofer, or both. These are literally on the dump pile, back in the field. Will have to go get them. Anybody else have pics of one?

Both, the cabs, especially, so that we can assess what is practical.

Are we up to this challenge?

Suffice it to say that we have made some truly crap speakers sing here.

[I ain't sayin' which ones those were, tho.... :tongue: ]

 

[GordonW]

The biggest weak links in the SM120 are the weak cabinet structure (which could be fixed with bracing and extensive damping), the boomy woofer tuning (which could be fixed with a longer port tube), and the horrendously bad midrange and tweeter integration (which we'd be getting rid of, anyway- the E-wave driver/waveguide would replace 'em).

Could work. I don't remember the woofer being that bad, itself...

Regards,
Gordon.

 

[rpampt]

An Econowave project is something I am considering in the future, would be 2 or 3 months down the road though. I already have a pair of JBL L88'ps that Zilch said would be a good candidate, but those may be gone by then. The Infinity was just a thought since the mids and tweets were shot anyway. Bracing them some would not be a problem. They were just in the way, so I dumped em. Guess I'll go get em and sit them aside for now. Working 12 hr days right now, give me a couple days and I will try and post some pics.