Short follow up: It's weird but after days of listening and comparing crossovers with different kinds of capacitors, I have to say that the electrolytic capacitors do indeed sound best with these speakers. It's not a huge difference but they just do.
I have somewhat of a luxury problem at the moment. In front of me are three sets of crossovers. All the values are the same it's the capacitors that are different. I've used Mundorf E-caps in one set, Expotus & Panasonic metallized polypropylene film capacitor in another set and Clarity Cap...
I wonder if the reason for many brands to just use elcaps back in the day because they were dirt cheap. I've even seen a few crossovers where they used filmcaps because they ran out of a specific elcap value.
I once used Mundorf M-caps in a set of Kef Corelli's and I didn't like them either for...
I've got another pair of red label JR149's with crossovers that need work. Just wondering: has anyone ever tried to use metallized polypropylene caps like Falcon does in their ls3/5a's ?
It's been a fun project and they are great speakers. Very detailed, dynamic en fun to listen to. I'm going to sell them on however. So if anyone is interested let me know. My next project will be a diy ls3/5a clone with a Rogers ab1 clone and in the meantime I'm enjoying my latest addition to my...
It's been a while since my last post. I've finally finished my JR149 MKI red logo's. One of the speakers needed a new fiberboard bottom cap. There was some damage to them when I bought them but trying to disassemble that speaker further damaged it. So I decided to fabricate new top en bottom...
So, it's been a few weeks since my last post. After I upgraded the crossovers to the Gold label crossovers and replaced both B110's I noticed that one of the speakers wasn't airtight. It seemed that there was a slight gap between the top cap made from mdf/fibreboard whatever that is and the...
You know what, let's try and figure out what they did with those early crossovers. I can make a compilation using photoshop in the days to come and I can point out the differences. I've also got two friends who have been building their own amps and speakers for years and I'm pretty sure they can...
Well they seem to but I'll have to do some testing with a microphone and that program you guys have been using.
One thing I haven't mentioned is that I'm surprised to find out how many different layouts and resistor values I've seen on the MKI crossovers. I've seen at least 4 setups. In the end...
I spent a few hours last night reworking the crossovers. I wasn't sure to go for electrolytic capacitors or film capacitors and I bought both: A complete set of Clarity Cap PWA capacitors and a set of matched Mundorf Ecaps. Since the consensus at this forum is to stick to electrolytic capacitors...
Well, I have to admit I was a bit disappointed yesterday finding out that the crossovers had work done to them but discovering the one of the woofers was rubbish was a real disappointment. I would never have bought them if I had known this.
I've decided to take the crossovers out to further inspect them and I removed the front mesh plates to get a closer look at the drivers. What I found out sofar is that both crossovers have resistors with different values. Not just compared to the schematic I got from Tony but they're different...
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