The MTI era petered out and ended in 1986, when SLM bought Ampeg. There wasn;t much left, a few skids of parts, and some file cabinets. I wonder what will happen to the Ampeg and Magnavox-Ampeg drawings etc that were still in a cabinet at SLM.... A shame if they get tossed.....
Anyway, SLM Ampeg is from 1986 onwards until into 2006, which is when Loud began to dumpster various parts of SLM. Loud began to specify products in about August 2006, the first being the BA600 and BA300, which I understand are being worked on at the chinese engineering group in Shanghai now.
The serial numbers are a bit confusing, since the new system including the date of manufacture went into effect in 1988. However, if "your" speaker was indeed an SLM one, it would date from between 1986 and 1988, since it didn't have the "new" style number.
It COULD be an MTI one, reloaded, but I doubt that. More likely it was an early SLM and those are original speakers. As for the difference in movement, I am not sure. It depends on when the new ones were put in. If they are really new, as in within the last year, I don't know where they were made, might be Eminence china. If older.... they SHOULD be Eminence USA.
For you, the HLF etc may be best. Or what you bought. The 810 with the flat back 32 ohm speakers is not good for super low end, as you discovered. But it is LOUD with 300W focused between the bass drum and guitar.
We discovered that a LOT of speakers were not quite ready for the SVT-8PRO..... but someone did plug an 8PRO into an 810 like that..... what a noise.......
Anyway, SLM Ampeg is from 1986 onwards until into 2006, which is when Loud began to dumpster various parts of SLM. Loud began to specify products in about August 2006, the first being the BA600 and BA300, which I understand are being worked on at the chinese engineering group in Shanghai now.
The serial numbers are a bit confusing, since the new system including the date of manufacture went into effect in 1988. However, if "your" speaker was indeed an SLM one, it would date from between 1986 and 1988, since it didn't have the "new" style number.
It COULD be an MTI one, reloaded, but I doubt that. More likely it was an early SLM and those are original speakers. As for the difference in movement, I am not sure. It depends on when the new ones were put in. If they are really new, as in within the last year, I don't know where they were made, might be Eminence china. If older.... they SHOULD be Eminence USA.
For you, the HLF etc may be best. Or what you bought. The 810 with the flat back 32 ohm speakers is not good for super low end, as you discovered. But it is LOUD with 300W focused between the bass drum and guitar.
We discovered that a LOT of speakers were not quite ready for the SVT-8PRO..... but someone did plug an 8PRO into an 810 like that..... what a noise.......
