Quad 707 improvements.

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10-Jul-2018 05:04 PM

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Posts: 2

Hi, i'm new to the site and have registered so i can learn about potential 707 upgrades. I already like the sound it produces through my Monitor Audio Studio 50's but would like to get the amp upgraded. What would be the ultimate 707 upgrades and would these upgrades significantly improve on the sound quality? There are several companies offering these services but which offers the best sound for pound upgrades? Thanks. 

Regards Mark.


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13-Jul-2018 02:05 PM

circlotron

circlotron

Posts: 6

My 707 had bad electrolytic caps on the PCBs due to age. Their ESR was very high when measured with an Atlas ESR meter. They looked OK physically though. I would suggest starting there.
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13-Jul-2018 04:53 PM

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Posts: 2

Thanks, what would be the best recommended quality caps to buy? I'm complete new in all this modifying. My amp has developed a dry joint in the power input on the amp at the back. So i'm thinking while in there i want to get it serviced with high quality parts and perhaps take in the best upgrades known to improve on the amp.   

What does Dado offer? 

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14-Jul-2018 03:10 AM

circlotron

circlotron

Posts: 6

I like Nichicon and Elna for durability. Panasonic and Rubycon are good as well.
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