Thanks for checking in Oldmics. The LX5 is for the C51 Apollo that has the LE85 driver. I don't know the cps cutoff on that driver. The 275 driver has a cps cutoff of 600. The age seems to be the right era.Originally Posted by Oldmics
Thanks for checking in Oldmics. The LX5 is for the C51 Apollo that has the LE85 driver. I don't know the cps cutoff on that driver. The 275 driver has a cps cutoff of 600. The age seems to be the right era.
Oldmics, please go ahead and post the image of the LX5. I just looked it up in the library and it shows it having a cps cutoff of 500, only 100 difference than mine. I'd like to look at it. Thanks for your help.
As requested
Oldmics
Does that manual mention system 205 anywhere? Thanks for LX5 schematic!
That Service Manual that I acquired the picture from does not mention the 205 system.
It mentions the use of these systems in the Metragon.
201
202
230
S82
S92
That being said I do have another manual (unfortunatly NO N600 schemetic) that does mention the 205 system.
Apparently the 205 system was the early used version for the Metragon 2 way system. It used (as you already know) the N 600 crossovers.
Those N 600 crossovers were only used for the Metragon-2 way 275 driver. No other cabinet got those N 600 crossover units.
I would have to say that my Service Binder is from a later period of time and that is why the N 600 is not mentioned. Sorry
You could contact JBL and see if someone there has the N 600 schemetic. I would guess that it is a bit different than the LX-5.
Why not just pull out the old caps and measure them to see what the values are and then replace them with newer caps.
A heat gun and a solder station and your in business.
Oldmics
True. There's a guy on ebay in LA area trying to sell a metregon cab for close to $3000.00 Way too much. The most I've actually seen one sell for was around 5500.00. If I could find one in good shape for 1500.00 to 2000.00 I jump on it. Its wierd becuase tje original owners I got these from never had a Metregon. The man who had passed, was an engineer for Boeing. He just bought the parts and had the cabinets made.That Service Manual that I acquired the picture from does not mention the 205 system.
It mentions the use of these systems in the Metragon.
201
202
230
S82
S92
That being said I do have another manual (unfortunatly NO N600 schemetic) that does mention the 205 system.
Apparently the 205 system was the early used version for the Metragon 2 way system. It used (as you already know) the N 600 crossovers.
Those N 600 crossovers were only used for the Metragon-2 way 275 driver. No other cabinet got those N 600 crossover units.
I would have to say that my Service Binder is from a later period of time and that is why the N 600 is not mentioned. Sorry
You could contact JBL and see if someone there has the N 600 schemetic. I would guess that it is a bit different than the LX-5.
Why not just pull out the old caps and measure them to see what the values are and then replace them with newer caps.
A heat gun and a solder station and your in business.
Oldmics
P.M. sent
Oldmics
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