Since about 10 days I am a happy owner of two Quad ESL 57 loudspeakers in very good optical condition (including dust covers).
Serial numbers 30509 and 30510!
I replaced the diodes in the HV supply in both panels .
One speaker is now working very good considering its age: 38 years.
The other speaker has one bass panel not playing. The second bass panel of this speaker is very low in level.
I will investigate further.
Here a picture of both panels on new stands (not finished, one panel still has the original feets attached and the "old" horn speakers are still ready for backup...)
When I now decide to use this speakers for the rest of my life, I have to make the decision:
Should I save money to let refurbish the panels by Quad Musikwiedergabe in Germany? They use the original equipment to do this job.
Or should I learn to refurbish ESL panels? Build a rig and all this stuff?
Will I have a stable and consistent result from my diy work? Will it be worth all the effort?
@Calvin: did you receive my two mails from oct 13th and 14th, about replacing the diodes? It was the first step for me, to really be in contact with the innerts of this speakers, believe me!
BTW: I drive the ESL 57 actually by an F5, it seems to be an ideal amplifier for this speakers. I will later compare the F5 as driver with the two Quad II monoblocks I also own.
And the ESL's are supported by a professional JBL 350W subwoofer (the black box behind the left panel).
Regards
Franz
Serial numbers 30509 and 30510!
I replaced the diodes in the HV supply in both panels .
One speaker is now working very good considering its age: 38 years.
The other speaker has one bass panel not playing. The second bass panel of this speaker is very low in level.
I will investigate further.
Here a picture of both panels on new stands (not finished, one panel still has the original feets attached and the "old" horn speakers are still ready for backup...)
An externally hosted image should be here but it was not working when we last tested it.
When I now decide to use this speakers for the rest of my life, I have to make the decision:
Should I save money to let refurbish the panels by Quad Musikwiedergabe in Germany? They use the original equipment to do this job.
Or should I learn to refurbish ESL panels? Build a rig and all this stuff?
Will I have a stable and consistent result from my diy work? Will it be worth all the effort?
@Calvin: did you receive my two mails from oct 13th and 14th, about replacing the diodes? It was the first step for me, to really be in contact with the innerts of this speakers, believe me!
BTW: I drive the ESL 57 actually by an F5, it seems to be an ideal amplifier for this speakers. I will later compare the F5 as driver with the two Quad II monoblocks I also own.
And the ESL's are supported by a professional JBL 350W subwoofer (the black box behind the left panel).
Regards
Franz
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