Resistor is 39 Ohms (3 Watt)

Mike,

There is in fact 4 inductors in total:-

• L1 is 6.8mH (Milli Henry)
• L2 is 1 mH
• L3 is 0.33 mH
• L4 is 0.33 MH

If you upgrade your membership to Silver or Gold you will find the Service Manual for all the variations of these speakers.

Thanks Keith.....

This pair is the only B & O product I have so I was trying to keep from having to purchase another membership.  I was hoping kind folks like yourself would help with my question.

I'm surprised the engineers used 63 volt in the first place for the caps, and am curious why they used three types of inductors.  I may go to all Jantzen air coil, 18 gauge, to reduce DC resistance for a complete upgrade to the crossover.  The cabinet is tight, so I may be restricted with space.

Again, many thanks for your help.  My new website will be up by the end of the week with the conversion from the ABR's posted.  I think it's going to work fine.  Look for it at the end of the week as I'm waiting on my webhosting company to get permissions to transfer the domain name and notify me so I can upload my new site: 

Thanks Puncher,

I'm not used to seeing a resistor marked that way....I'll probably step up to a Mills 12 watt.  I've been happy with their products.

Best regards,

Mike

Mike,

Normally resistors are marked like 39R when they have a wattage over one, below they use the normal coded bands.

With regards to the capactors, the original parts list actually shows them as 25 volt

Hey Keith,

I don't have any coded bands on my green resistors, so that is what threw me.?.......I thought the 39R was just a private product code or number, not a resistance value. 

If the parts list shows the caps as being 25 volt, someone must have realized this is way underrated so they went to the 63 volt, which are in mine.  If I would have upgraded my membership and downloaded this information, I may have been thrown way off.. (chuckle)

I bought a second pair of the RL60's for spare drivers and as soon as I opened one of them up, I could smell the burnt caps, also rated at 63 volt.  With a rms of 60 and 90 watt peak music, IMHO a minimum of 100 watt or better is preferred.  I've been happy with the Solen caps I put in my crossovers for my mains and center speaker and they have held up fine.  They are rated at 400volt.  I'm using a high end Rotel receiver/amp and push the mains pretty hard in two channel for music DVDs.

BTW....do you agree with Puncher that the resistor is 39 ohms?  I'm sure he's correct, but it's always nice  to have a second opinion.....:)

Thank you again,

Mike

puncher is of course absolutly right.

39R means resistor with 39ohm

3R9 would mean 3,9ohm

39K would mean 39000ohm

3K9 would mean 3900ohm

and so on

jens 

You are a riot!!!!!!!!!!!!

I really appreciate you guys....  🙂

I got my new passive radiators in today.  I'm going to install them, put the cabinets back together, and if I like what I hear, I'm going to order my 10 and 30 ohm Mills 12 watt resistors and the Solen caps and replace them.  I'll have to series wire the Mills to get 40 ohms, but that's a bit more tweet protection..... I think I'm going to love my ABR conversion and if they work well, I hope some of the posters can benefit from my new idea and efforts.

Thanks again,

Mike Cason

btw.....the European resistor numbering system is different from ours.  Yours of course is the right way, hugh?