Mystery Speaker Game 7- just for fun
- Thread starter Susurus
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: I like saying number nine, number nine, ... 
Susurus
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I predicted 16 posts...dragon got it in half that. I thought they were interesting because they had black plastic 'Jubal-like' tops and bottoms, very thick sides and are quite heavy at 61 pounds; often the meteorologist says a chance of bass. They seem under-woofer'ed.
Thinking I may plug the port and seal the smaller drivers up, brace and dampen the insides, and stick a SpeakerLab woofer in there...
You might find Mystery (8) somewhat more of a challenge...:bat:
I predicted 16 posts...dragon got it in half that. I thought they were interesting because they had black plastic 'Jubal-like' tops and bottoms, very thick sides and are quite heavy at 61 pounds; often the meteorologist says a chance of bass. They seem under-woofer'ed.
Thinking I may plug the port and seal the smaller drivers up, brace and dampen the insides, and stick a SpeakerLab woofer in there...
You might find Mystery (8) somewhat more of a challenge...:bat:
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dragon
can't take me anywhere
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I predicted 16 posts...dragon got it in half that. I thought they were interesting because they had black plastic 'Jubal-like' tops and bottoms, very thick sides and are quite heavy at 61 pounds; often the meteorologist says a chance of bass. They seem under-woofer'ed.
Thinking I may plug the port and seal the smaller drivers up, brace and dampen the insides, and stick a SpeakerLab woofer in there...
You might find Mystery (8) somewhat more of a challenge...:bat:
Are these woofers 10"? There's a guy on fleabay selling a lot of Polk 4 ohm 10 inchers with a fairly wide frequency response. i thought about trying them on my AMT-1's.
Susurus
Resolution:6.62×10^-34
They are 12" woofs.
You mention Polk, hmmm! I've been fooling with some 6.5"s trying to re-align and reaffix the magnets to save a perfectly good set of 10B's that seem afflicted with lockjaw.
What AMT's need is a nice high-transient response midrange; how about a Nostrovic -ized crossover with a couple of those 10s?
I need a new house for homeless SpeakerLab 3 guts I just got. :tresbon: That's why I thought to convert from ported to A.S. I'm all about helping orphans and the homeless...
You mention Polk, hmmm! I've been fooling with some 6.5"s trying to re-align and reaffix the magnets to save a perfectly good set of 10B's that seem afflicted with lockjaw.
What AMT's need is a nice high-transient response midrange; how about a Nostrovic -ized crossover with a couple of those 10s?
I need a new house for homeless SpeakerLab 3 guts I just got. :tresbon: That's why I thought to convert from ported to A.S. I'm all about helping orphans and the homeless...
Susurus
Resolution:6.62×10^-34
Well a bit of latin jazz on these sound pretty good! Fast upper bass, good percussion. Even with dead tweeters....
Agreed the dirt brown cloth needs to go.
I don't usually like ported designs, so I was going to plug them and put SpeakerLab woofers in. Now maybe the Scott S-197's are gonna get the Speakerlab drivers. (Its 15" woofs probably weren't worth the refoam).
Think I'll hook up some tweeters and turn them up. A lot.
Agreed the dirt brown cloth needs to go.
I don't usually like ported designs, so I was going to plug them and put SpeakerLab woofers in. Now maybe the Scott S-197's are gonna get the Speakerlab drivers. (Its 15" woofs probably weren't worth the refoam).
Think I'll hook up some tweeters and turn them up. A lot.
Rolf Zetterberg
Well-Known Member
Mid is a late version of the Peerless G50MRC probably with ferrite magnet.That greenish damping on the surround reveals it.
Tweeter a Peerless MT25HFC.
Early 70's seems to be right.
Unsure about the woofer,though.
Tweeter a Peerless MT25HFC.
Early 70's seems to be right.
Unsure about the woofer,though.
Susurus
Resolution:6.62×10^-34
Rolf thanks for the details! These have prodigious bass output. Very low and not boomy.
What are the specifications? I can find almost nothing on the web, so I'm guessing they didn't sell like hotcakes (or JBL 100's). Like a missing link between the early electrostatics and the later Heils.
Must have been way too expensive to make this heavy cab and no cost-cutting on the nice imported drivers. (Well maybe the cloth grill could be better! :
)
Later on the company figured out how to make cheaper, flimsier cabinets, but in 1973 somebody cared enough to make it solid.
I'm guessing the dome tweeter's maximum output never could keep up with the rest of the system when driven hard. Not the only design often afflicted with Fried Tweeter Syndrome. :nono:
This is the opposite from the subsequent Heil AMT lineup, where even with multiple woofers the bass can't keep up with the HF transient response (except maybe the TL tower? :scratch2: ).
Case of overcompensation?
What are the specifications? I can find almost nothing on the web, so I'm guessing they didn't sell like hotcakes (or JBL 100's
). Like a missing link between the early electrostatics and the later Heils. Must have been way too expensive to make this heavy cab and no cost-cutting on the nice imported drivers. (Well maybe the cloth grill could be better! :
)Later on the company figured out how to make cheaper, flimsier cabinets, but in 1973 somebody cared enough to make it solid.
I'm guessing the dome tweeter's maximum output never could keep up with the rest of the system when driven hard. Not the only design often afflicted with Fried Tweeter Syndrome. :nono:
This is the opposite from the subsequent Heil AMT lineup, where even with multiple woofers the bass can't keep up with the HF transient response (except maybe the TL tower? :scratch2: ).
Case of overcompensation?
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