Here are all of the (necessary) components off of the board, ready to be desoldered.
Location: San Francisco
Here are all of the (necessary) components off of the board, ready to be desoldered.
Location: San Francisco
Here are the new and old 25uF capacitors side by side. There is a marked difference between the size which will require some creative packaging.
Location: San Francisco
Here is the old board in the middle of deconstruction. I progressively assembled and disassembled both the old and new components in order to stay on track.
And here is the new system being assembled on the other corner of the speaker. Here you can see the awkward size of the resistor is causing another set of issues, this time with the legs and the solder joint.
Location: San Francisco
Here is the final product!
There you can see the difficult four-point solder - not very proud of this joint but it is working, all connections are solid.
At this point it is a good idea to add some hot glue between the capacitors and the board to keep the from rattling around. After all, they sit directly behind the woofer.
Location: San Francisco
The refreshed board is now installed.
All that is left to do is hot glue the speaker wire (strain relief) as it exits the enclosure, replace the stuffing and then the bass driver.
Wash, rinse, repeat (for speaker number two).
Location: San Francisco
Anyway... where was I...
Oh right the crossover!
That's all there is? Where's the rest? 😁
How much did you paid for the caps Evan? Again my compliments for this new picturized thread.
Still I have my doubts if you can really hear the difference after recapping. Must try such a project with all my Beovoxes I own. Please continue....
That's all there is? Where's the rest? 😁
How much did you paid for the caps Evan? Again my compliments for this new picturized thread.
Still I have my doubts if you can really hear the difference after recapping. Must try such a project with all my Beovoxes I own. Please continue....
Yep, that's it! The 2600 is a very simple two-way speaker. Makes for a great weekend project.
I paid 34.46 USD including shipping.
Well, not every recap is the same. For this case, the change was significant. One speaker had a notably lower output in the treble section and after the refresh it is back to normal! Right on par with the other speaker. I measured both of the resistors as well as the brand new ones I just installed and all measured 2.5 ohms exactly. Now having eliminated the resistors as the problem, the problem is clearly the caps. The value of electrolytic capacitors changes as they age (they essentially lose their ability to hold a capacitance). These speakers are between 40 and 43 years old and fresh new capacitors has definitely helped their case.
Location: San Francisco
OK, so I finished them up a few minutes ago and have also raised them up onto the S45-2s. As I said above, the problem of unequal output has been resolved. I am very grateful caps is all it took, I wouldn't have had the patience to find another driver like Todd and I had to last year. At any rate, I must say - these speakers are wonderful! Very soft and laid back tone, but also very capable in the bass department if your in that kind of mood. Here at my house it is 2:40AM and the rest of the family is asleep so I can't really open them up until tomorrow. Low level listening is still very enjoyable!
As for the argument about sonic improvement with fancy new caps, I really can't say as I wasn't able to do a proper evaluation of the speakers before hand. I can, however, definitively say that a sonic problem has been resolved by the replacement of the capacitors.
Until tomorrow, happy listening!
Location: San Francisco
That's all there is? Where's the rest? 😁
How much did you paid for the caps Evan? Again my compliments for this new picturized thread.
Still I have my doubts if you can really hear the difference after recapping. Must try such a project with all my Beovoxes I own. Please continue....
Yep, that's it! The 2600 is a very simple two-way speaker. Makes for a great weekend project.
I paid 34.46 USD including shipping.
Well, not every recap is the same. For this case, the change was significant. One speaker had a notably lower output in the treble section and after the refresh it is back to normal! Right on par with the other speaker. I measured both of the resistors as well as the brand new ones I just installed and all measured 2.5 ohms exactly. Now having eliminated the resistors as the problem, the problem is clearly the caps. The value of electrolytic capacitors changes as they age (they essentially lose their ability to hold a capacitance). These speakers are between 40 and 43 years old and fresh new capacitors has definitely helped their case.
"Evman, back at the workbench in "True Form" As Leslie says..."my compliments as well"🙂 Kinda takes me back! Looks like 2600's will sing well!
Congrats on a job well done. One thing about the new polypropylene caps is they should never require changing.
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