The Advent 1 Stereo Speaker Repair - Dead Speaker & Refoaming the Woofers

[@les8826]

Can you make a video on how to connect the wires from the back? Thank you. ❤

[@millervintagehifi3034]

Those speakers are long gone…

[@les8826]

@millervintagehifi3034 that's okay! Thank you for replying. ♡

[@Daltondoubledeuce]

I have a pair of AR18b, one dead woofer. The other woofer reads about 6ohms and needs refoam desperately. I did hook them up to see how they sounded even with destroyed foams, tweeters sound great. The woofer that read 6ohms doesn’t sound great but being new to this I can’t tell if it will be good with a refoam or is it shot despite reading 6 ohms? Any suggestions? Thx! Love the channel.

[@millervintagehifi3034]

It's likely that the foam missing is why the sound is distorted.

[@martsol262]

How about demonstrating your work! Love to hear the sound.

[@millervintagehifi3034]

Maybe next time…re-foam videos are kind of tedious to watch :)

[@Battlem0nk]

I have an Infinity Reference RS152 speaker. Think it is a bipole design? Measuring the enclosure terminals I get "OL" reading instead of the usual 5-6 ohms. However, when plugged into a AVR it still plays audio seemingly fine. What does this mean? Half dead or soon to be?

[@millervintagehifi3034]

No idea...

[@chuckmatses6803]

Hi, what model are your AR's? I had 4x's in 1970

[@millervintagehifi3034]

I worked on some AR 2AXs.

[@yvesboutin5604]

I like this kind of vidoes but you didn't show if you changed the capacitors in these babies, because after a few decades, electrolitic capacitors do not hold their value ( in microfarad) and easily short out with a bit of power, ruining the tweeter in the process. Thanks for the video!

[@millervintagehifi3034]

I did not recap the crossovers in these. Thanks for commenting!

[@reoman98]

I thought if a tweeter capacitor failed there is a chance it could harm the tweeter. I replace electronic with polypropylene caps but I’m restoring for my own use. If there is a chance it could damage the tweeter I wouldn’t consider it restored until that was accomplished.

[@yvesboutin5604]

Good ! You have the basics of electronic done right ! Congratulations, and I hope they will give you years of entertainement !@@reoman98

[@FredPinkertonIII]

@@reoman98 I was Audio Product Manager at Advent Corp during the creation and production of the Advent 1. All of the Advents of this era had a "two pole" network with a choke across the tweeter and an electrolytic non-polarized capacitor in series with the tweeter (along with some other "sound shaping" parts). A degraded electrolytic capacitor in this parallel network may show some measurable DC current leakage, but I'm not aware of them shorting in use in a network like that used in Advents. And I would have known about it (amp failure). Of course some of them eventually "open" and brake the circuit. In the Advent 1's two pole network, if the capacitor shorted, the amplifier would see the just choke in parallel with the tweeter, which would be a dead short at most audio frequencies. The amp would suffer the increased current, not the tweeter. Of course, replacing old electrolytic capacitors is still a good idea, but properly done the speaker's sound should not change.

[@bvctv3385]

where are the foaming steps shown?

[@millervintagehifi3034]

I typically don't include them because there are hundreds of other videos that can show you the process.

[@bvctv3385]

so change the title and tags please