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crossover

  1. FireGuruMN

    Boston Acoustic A400--I'm the original owner!

    Yep, bought these if Fargo, ND for $812.00 at Team Electronics back in 1984 if all those memory cells are still working correctly. I'm sure some are misfiring at this point. They were my main speakers until I purchased a pair of Polk RTIa9's a few years back. Now I've gone speaker crazy so...
    • FireGuruMN
    • Thread
    • a400 boston acoustic capacitor crossover replacement
    • Replies: 27
    • Forum: Speakers
  2. FireGuruMN

    Dahlquist DQ10 Recap and Refoam and Such

    I landed a pair of Dahlquist DQ10 off CL for $250. Supposedly one driver was intermittent. The owner said banging on the side would usually bring it back. Wow like 1970's television. And they have not been serviced (or cleaned) since 1972 that I could tell. But there is a special place in...
    • FireGuruMN
    • Thread
    • crossover dahlquist dq-10 dq10 film capacitor recap refoam speaker vintage
    • Replies: 34
    • Forum: Speakers
  3. Homey4uk

    Marantz HD77 no tweeter and no midrange in one, HELP!

    Hello AK repair gurus. I have a pair of Marantz HD77s. They were rough when I got them. One picture looked good, the other they kept the cover on. Oh well. The crossover dials were stuck, but all of the speakers were working. After reading a lot here I purchased some Caig Deoxit. I disassembled...
    • Homey4uk
    • Thread
    • crossover marantz hd77 no tweeter potentiometer
    • Replies: 22
    • Forum: DIY
  4. A

    Need advice on repairing a JBL L830

    Hi all, first post. Dug these JBL's out after about ten years safe storage and found a total loss of high frequency on my left speaker. Confirmed that both the tweeter and crossover are giving no sound. Upon opening everything looks as good as new, all wires well connected, all capacitors...
    • arcticranger
    • Thread
    • crossover jbl l830 speakers tweeter not working
    • Replies: 13
    • Forum: Speakers
  5. ddrjboo

    Dahlquist DQ-10 crossover question

    I am refurbishing a pair of Dahlquist DQ-10s relying heavily on a previous post by @baco99 (thanks!). His thread is located here: https://www.audiokarma.org/forums/index.php?threads/finally-dq-10s-in-da-house.513177/ A schematic I got from classicspeakerpages is included below. On one of...
    • ddrjboo
    • Thread
    • crossover dahlquist dq-10 inductor
    • Replies: 12
    • Forum: Speakers
  6. FireGuruMN

    Ohm Walsh 3 Recap Challenge

    I bought a pair of Ohm Walsh 3 speakers about a year ago. They sounded fine but as I have learned there is always room for improvement through replacing old capacitors. But it seems Ohm makes almost every step of the recap process a challenge. I found some useful threads that got me started...
  7. F

    Avid Corp. model 102 crossover needs recap

    There was an earlier thread about this. I tried replying because I am in the same situation. But I didn't get a response because the thread is so old. So here goes my own thread... The tweeter is out on my right speaker because the "7.0 uf 30v np" cap on the crossover is bad and Parts Express...
    • fxcamera1
    • Thread
    • avid capacitor crossover speaker
    • Replies: 5
    • Forum: Speakers
  8. S

    Yamaha speaker crossover

    I recently acquired a pair of Yamaha NS-A535's from Goodwill for $19. They're a big pair of 3-way speakers and sound very nice. There's not much info about these speakers on the internet, but I'm guessing that they're OLD. Maybe 80's or 90's. The fact that they're old points to one problem...
    • Saffire
    • Thread
    • crossover sealed yamaha
    • Replies: 6
    • Forum: Speakers
  9. David_NC

    ADS L1090/2 Crossover

    I just acquired a pair of these knowing they need some love. I fired them up, and they sounded decent. As I listened to them, I noticed quite a few differences in the sound from one speaker to the other. Mid domes were dented in a bit and have lots of lint on them, so I swapped them out with...
  10. M

    Need B&W DM10 recap/crossover advice

    Hi, I have a set of B&W DM 10 speakers that I got at a garage sale when I was in high school. I understand that they are budget speakers but I still like to use them sometimes. Anyway, I noticed recently that the tweeter on one side has gone very, very quiet. I pulled the crossovers to try...
    • Minarai
    • Thread
    • capacitor crossover dm10 recap
    • Replies: 5
    • Forum: Speakers
  11. FireGuruMN

    JBL 4435 Bucket List Countdown

    A pair of 4435's showed up on the local craigslist for a reasonable price and I landed them. Got them out of one basement and into mine with no injuries to the speakers or the movers. They are 250 pounds each if you are wondering why I mention that. After factoring in a Florida vacation so my...
  12. M

    Yamaha MX-1000 & JBL DX-1 repair/restoration service

    I have 2 Yamaha MX-1000's that are in need of repair. I use these monsters for biamping my JBL XPL-200'S ALONG WITH THE UNICORN DX-1 crossover, which is in need of refurbished RCA connections. Can anyone here direct me to a qualified servicer please?
    • MJaso
    • Thread
    • amplifier crossover dx-1 jbl vintage yamaha
    • Replies: 4
    • Forum: Yamaha
  13. Morten Krogh

    Searching Tannoy Precision 8P crossover schematics

    Hi I'm searching for a Tannoy Precision 8P crossover schematics or pictures of the crossover. I have the two 8" drivers 7300 1006 2077 and most of, if not all, the original crossover parts. Can anyone help me?
    • Morten Krogh
    • Thread
    • crossover precision 8 schematics tannoy
    • Replies: 0
    • Forum: DIY
  14. GabeD

    Tannoy Lynx Restoration

    Hi all! I have been restoring a set of Tannoy Lynx speakers from the Wildcat line from the mid/late '80s. It actually took me a while to figure out what I had as there are no model names on the cabinets and no part numbers on the drivers. Google image search helped a lot. The drivers are the K...
    • GabeD
    • Thread
    • crossover dale dayton dope k3148 k3149 lynx restoration surround tannoy lynx
    • Replies: 31
    • Forum: Speakers
  15. momoberber

    JBL 4435 and 5235 Crossover Help Biamp

    First. I have been lurking on this and the Lansing forum for a while and have finally registered as I have found the contributors very well informed and helpful. Second I am an amateur audiophile and not very experienced with internal electronic concepts and components and their integration into...
    • momoberber
    • Thread
    • 4435 5235 biamping crossover zilch zonker92
    • Replies: 2
    • Forum: Speakers
  16. AudioCarMan

    Dahlquist DQ-10 bigdome midrange - Crossover problem?

    I purchased a pair of Dahlquist DQ-10 that were supposed to work perfectly, but didn't. By the time I found out I had driven 3 hours to get them (6 hours total). Woofers dry rotten and some of the drivers weren't working at all. I replaced the foams using Rick Cobb's kit, checked all of the...
    • AudioCarMan
    • Thread
    • bigdome midrange crossover dahlquist dq 10 fuse
    • Replies: 37
    • Forum: Speakers
  17. BilboBaggins

    B&W speaker project from parts

    I had a good day at the thrifts today, and even got my French Tutor a Citation 605 acoustic guitar! It was when I got home that things got interesting. I’m looking into Facebook to mark one of my items as sold, and I see an ad for speaker parts for free. The location is in the country about 35...
  18. Johnny_Law

    Help ID a strange crossover box?

    These came out of a pair of ancient DIY speakers, mated to an Altec 803B and 802D/811 horn. Any idea what they are? I don't see an easy way inside.
  19. seifreit

    Technical Sheet accuracy(or lack there of?)

    OK, so here is the question. In your experience, how accurate are the Technical Sheets from Infinity? Can it be assumed that the Technical Sheets reflect the latest production revision? Here is why I ask. I have now recapped three sets of the vintage Infinitys (RS5B, RSIIIB and Kappa 6). In...
  20. Cyr

    Rectilinear 3 Lowboy - Crossover, tweeters and others

    • Cyr
    • Thread
    • crossover lowboy rectilnear tweeter
    • Replies: 8
    • Forum: Speakers
  21. I

    Coral bx1000 question

    I recently caught the vintage speaker bug after buying a set of Cerwin Vega vs120. Then a pair of Coral bx1200. I seem to love the kabuki sound that lots make fun of !! Haha. So the latest find are some Coral bx1000. These are 3 way speakers. Sound OK but I realize now the midrange...
  22. Brice

    Crossover caps upgrade McIntosh LS340

    Hi guys, I've posted my work on the caps upgrade for the crossover of the McIntosh LS340 speaker. It is here. https://audiokarma.org/forums/index.php?threads/mcintosh-ls340-cross-over-cap-upgrade.878883/ Thanks Brice.
    • Brice
    • Thread
    • crossover film caps ls340 speaker
    • Replies: 0
    • Forum: Speakers
  23. Brice

    McIntosh LS340 Cross over cap upgrade

    Hi guys, I've realized some time ago that my speakers are reaching 15 years of trusted usage. I knew that in the crossover board inside the speaker there was some non polarized electrolytic capacitors. I decided to refresh them all, and while doing so, trying to upgrade some to film caps where...
    • Brice
    • Thread
    • crossover film capacitor upgrade ls340 mcinthosh speaker
    • Replies: 7
    • Forum: McIntosh Audio
  24. turnitup

    Pioneer CS 88A Adventure

    I just purchased an entire early 70s Pioneer setup from a widow in her later years, it’s all in pristine (single owner) condition, but close to 50 years old. It had belonged to her late husband who had been in the military. I’m going through every piece and restoring everything...but this is...
    • turnitup
    • Thread
    • crossover cs 88a pioneer speakers
    • Replies: 2
    • Forum: Speakers
  25. pjrey

    ADS B7 Crossover Help

    Hi all, I’m struggling with how to read a couple components on this crossover. The 4 ohm & 3.4 ohm resistors are clear. As is the 18uf electrolytic cap. But the B32524 film cap and the round yellow thing that reads XD-090 708B I’m not sure about. Thoughts?
    • pjrey
    • Thread
    • ads crossover
    • Replies: 7
    • Forum: Speakers
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