Alexander Posted February 22, 2018 Share Posted February 22, 2018 I am sure you old timers know all this but thought it might be interesting to the newer members to see a few sizes of caps next to each other. On the right is a (early) forte II crossover that has Solen 1.5uF & 2.0uF caps installed. The white caps in the center are Audyn "Plus" caps, the bottom is a 1.5uF and the upper two are both 2.2uF's and in this case two different values are the same physical size. The orange caps are Audyn "Q4" caps and the monster size cap is a 100uF and the small on is a 10uF. Also the two laminated inductors show wire size and can be compared to the factory wire used. The bottom left is 15 AWG and the lower right is 18 AWG. Quote Link to comment Share on other sites More sharing options...
Alexander Posted February 22, 2018 Author Share Posted February 22, 2018 Added the original caps taken off the OEM xo. The blue one is the 1.5/2.0 caps and the green electrolytic is 110uF and the two Q4 caps will be used to replace it. Naturally they will not fit on the OEM board Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 23, 2018 Share Posted February 23, 2018 Heresy 2 comparison. Old vs new. Quote Link to comment Share on other sites More sharing options...
MC39693 Posted February 23, 2018 Share Posted February 23, 2018 Good discussion item. I ran out of real estate once for an upgrade to existing x-over due to size of caps and inductor. Had to cut a second board and connect it to original x-over board with mending plates. Good plan to do a “dry”layout before you go too far! The pros make x-overs that work great and look great with attention to the deatails... I’m still learning. Quote Link to comment Share on other sites More sharing options...
Deang Posted February 23, 2018 Share Posted February 23, 2018 Not exactly apples to apples. An 800Vdc metallized will always look massive compared to a 100Vdc of the same cap type. What's more interesting is comparing a 100Vdc film and foil to a 400Vdc entry level metallized. Quote Link to comment Share on other sites More sharing options...
Deang Posted February 23, 2018 Share Posted February 23, 2018 Here you go: 800Vdc metallized compared to a 100Vdc film and foil. Quote Link to comment Share on other sites More sharing options...
Alexander Posted February 23, 2018 Author Share Posted February 23, 2018 Deang, what size screws are you using for the saddles? I have some #8 but looks like I might want to go to #10 just to file the hole better, or just add a washer under the #8? I see what you mean about them being sharp, not sure what I will use to protect the caps . Will look at Lowe's in the weather stripping section. Quote Link to comment Share on other sites More sharing options...
Deang Posted March 1, 2018 Share Posted March 1, 2018 I usually just use #8 screws. I used to put a washer in there - but the slightly undersized screw works just fine. Quote Link to comment Share on other sites More sharing options...
Alexander Posted March 24, 2018 Author Share Posted March 24, 2018 On 2/28/2018 at 8:10 PM, Deang said: I usually just use #8 screws. I used to put a washer in there - but the slightly undersized screw works just fine. Thanks Deang for sharing some of your methods. Quote Link to comment Share on other sites More sharing options...
efzauner Posted March 24, 2018 Share Posted March 24, 2018 caps will vary depending on voltage: For double the voltage breakdown you need 2x the plate separation for the same volts/meter. Dielectric constant: if the material is 2x the Er then you get 1/2 the plate separation. Equivalent series R: related to plate conductance and different choice of dielectric. Will really all depend on the construction and materials used and specs desired Quote Link to comment Share on other sites More sharing options...
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