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Re: Hi group. What do you think these are worth?


 

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I have a mirrored pair of DQ-10’s, DQ-20i”s, DQ-20’s and they have all had tired and failing complaints.?
I had an open resistor and removed it to find it baked underneath so I removed the rest and found they were all been roasted but only the one had failed. I broke it in half and couldn’t believe the heat damage.?
image0.jpeg
The top view you’d never know anything was wrong.
I only use Military Spec Mill’s 1% tolerance resistors now and they’re also non-inductive with a highest heat range. All those original components have exceeded their life expectancy by either failing or the original tolerance is out or far out of spec. I’m available to test or measure any components or updates. I have seen people replace inductors with the same microfarad value not knowing they also have an impedance values need to stay the same as the original. I special order those with Linz wire at any value and they usually arrive within two to three weeks. I’m also replacing DQ-20 types with exterior mounted crossovers which do not require the unsealing and removal of the woofer. Everything’s so much easier to view and test and modify.?
image1.jpegimage2.jpeg

If anyone needs assistance please message me.

Bill Meyerhoff?

On Sep 29, 2023, at 09:26, Bill Meyerhoff <bmeyerhoff@...> wrote:

?It could be both. I have two expensive LCR measuring device's and all the original components have varied measurements to include some expired components. New components can be purchased with tighter tolerances bringing them back to the point when they were designed…

Bill Meyerhoff?

On Sep 29, 2023, at 08:41, Jack Harrington <sirreal63@...> wrote:

?
They did not work.? At first I thought it was the drivers but it wasn't.? They had no appearance of damage, just dead.

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