I finished a full rebuild and upgrade to a very large pair of Sound Dynamics 10S speakers last night. These speakers arrived my way in a sorry state, but they are worth the effort in restoring. The cabinets are in good condition.
These speakers are highly efficient competitors to Cerwin Vega speakers made by Audio Products International, best known for Energy 22's and the Mirage line up of speakers.
These speakers use a 10 inch woofer crossed over in the 1st. order to a horn loaded dome tweeter. These speakers are easily over 96-98db in efficiency, they play loud and clear.
The woofer needed a re foam and I opted to go with black foams as opposed to the original reddish/orange foams.
The crossover got a new 4.7uf metal polyester Tenta Cap that is +/-5%. The tweeter level control got a full dousing of DeOxit.
I replaced the original spring clips with new banana pug binding posts for better connectivity to modern connectors.
Also added was a bit more dampening material to help with the back wave from the woofer.
Sound impressions so far........ Pretty nice, the horn tweeter is clear without being harsh, the bass is spot on and very full. I did have to play with the tweeter control to get the balance that I like and loud, hell yeah, these can rock.
I have lots of material to listen to before I give these up to the next speakerholic.
These speakers are highly efficient competitors to Cerwin Vega speakers made by Audio Products International, best known for Energy 22's and the Mirage line up of speakers.
These speakers use a 10 inch woofer crossed over in the 1st. order to a horn loaded dome tweeter. These speakers are easily over 96-98db in efficiency, they play loud and clear.
The woofer needed a re foam and I opted to go with black foams as opposed to the original reddish/orange foams.
The crossover got a new 4.7uf metal polyester Tenta Cap that is +/-5%. The tweeter level control got a full dousing of DeOxit.
I replaced the original spring clips with new banana pug binding posts for better connectivity to modern connectors.
Also added was a bit more dampening material to help with the back wave from the woofer.
Sound impressions so far........ Pretty nice, the horn tweeter is clear without being harsh, the bass is spot on and very full. I did have to play with the tweeter control to get the balance that I like and loud, hell yeah, these can rock.
I have lots of material to listen to before I give these up to the next speakerholic.
You shouldn't modify these in the slightest way.
ReplyDeleteThank you for your deepest thoughts and input.
DeleteI have a pair that I purchased new back in 1978. Those puppies saw a lot of parties!
ReplyDeleteThey got packed away years ago. Were taken out of storage about 15 years ago and of course the surrounds were shot. One of the woofers subsequently got lost.
I need to replace both I guess - any suggestions? I understand the original drivers were very efficient.
Thanks! Your post inspired my own refoam project. But it raises a few questions since the crossover in my 10s has 3 caps, and a different grill configuration (it covers the entire face of the cabinet). I'm guessing later production....
ReplyDelete