B&W DM4 Recap NEWB Question...7 Caps?

[nutpecker]

So as a first-timer I recapped some old Polk 5JR+'s and it was one cap and one resistor, a piece of cake. I'm feeling pretty capable! Then my left B&W (circa 1980) suddenly all but died, so I checked all connections (good) then removed the crossover. What??? See pics below and replacement list (Metalized Polypropylene Crossover Capacitors from Parts-Express):

Pos Q uF V Brand Desc.
A 2 0.22 250 Dayton PMPC-0.22 (parallel with .47)
A 2 0.47 250 Dayton PMPC-0.47
G 2 1 250 Dayton PMPC-1.0
E 2 1.5 250 Dayton PMPC-1.5
F 2 2.2 250 Dayton PMPC-2.2
B, D 4 3.3 250 Dayton PMPC-3.3
C 2 4.7 250 Dayton PMPC-4.7

Am I on the right track here? The original caps -- are those film? They're labled ITT-GB and they're all 100V. Capacitances on list above are all the same as originals. 250V instead of 100V is OK for the replacements, right?

 

[avguytx]

Yes, you can always go up in voltage but never go lower if you can keep from it. Measure what size the original caps are and make note of it somewhere. When you go looking for others, they can get quite large depending on the brand. Everyone has opinions of what they recommend and, to me, there's a point of diminishing returns with capacitors. I've mostly used Dayton & Solen for the reasonable price range with great results and also Audyn Q4 or Plus versions. I just don't care to spend a lot of money on them as I'm not chasing rainbows and unicorns.

 

[nutpecker]

Thanks for the reply @avguytx -- Looks like I'm on the right track here...B and C are going to be tight, but the Daytons will just fit. Ordering the list of Daytons above. When they come in I'll install and report back. Meanwhile any perspective on these (to me at least) unique crossovers will be appreciated - 4 inductors and 7 capacitors seems like a lot.

 

[avguytx]

Fantastic work! Please post new pics when they are setup in your new home.

Thanks for the reply @avguytx -- Looks like I'm on the right track here...B and C are going to be tight, but the Daytons will just fit. Ordering the list of Daytons above. When they come in I'll install and report back. Meanwhile any perspective on these (to me at least) unique crossovers will be appreciated - 4 inductors and 7 capacitors seems like a lot.

You might have to get creative on how the caps are mounted. They might need to stand up higher off the board or maybe even position them vertical instead of horizontal. As far as the amount of parts, most likely they are a steeper slope crossover...maybe 18db/oct high pass and 12db/oct low pass. Could also be a notch filter or zobel tied in. Not really sure.