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  1. AngrySailor

    JBL 4 Way Build Questions

    Nice! Just keep in mind that you’re only looking at 300hz and up maybe 500hz and up depending f on your crossover and also remember that all things the same, each additional driver adds ~3dB to you’re theoretically up 6dB left and right just by adding 2 drivers each side (sensitivity being the...
  2. AngrySailor

    Paul McGowan and Bob Carver

    Is this guy drunk or high? I think maybe he was sipping wine just before the video...
  3. AngrySailor

    JBL 4 Way Build Questions

    Tuning is really only effective around the resonant frequency, a ported cabinet will give you +3dB at/near the resonant frequency but fall off at a steeper rate BELOW its resonant frequency compared to a sealed cabinet. It also loses control of cone movement below resonance which can be a...
  4. AngrySailor

    JBL 4 Way Build Questions

    That’s how most of my cabinets are, shop subs included, 2 identical drivers in a shared cabinet. Here’s the house 3 ways, 2x15” shared volume, 6” sealed mid and a compression horn. Not sure if you’re thinking the “grille” on the back is a vent? It’s just the graphics on the sticker, there is no...
  5. AngrySailor

    PL400 series 1 popped short fuse. what to check?

    Pops bought these new back in the 70’s. Had a little service work a few years ago but they sound great still.
  6. AngrySailor

    PL400 series 1 popped short fuse. what to check?

    Can confirm... I vaporized a probe and smoked a couple output trannys o_O
  7. AngrySailor

    JBL 4 Way Build Questions

    I would agree, unless you’re trying to use them down near their resonant frequency they don’t need much box. Those are a proper mid range speaker too, id probably run them 500-3k and see how that sounds. If you’re using a DSP you have easy flexibility too. You may want to call JBL and talk about...
  8. AngrySailor

    JBL 4 Way Build Questions

    That’s the dilemma I’m in with my 15’s... 4 or 16 ohm total. I went with parallel 4 ohm as I needed/wanted the extra power. The 400 will be ~100wpc at 16 ohm, adding an extra driver physically adds 3dB also so maybe 16 ohm will have enough power? I would share their box, like I said, volume...
  9. AngrySailor

    JBL 4 Way Build Questions

    When I was designing my three way cabinets I was in contact with Eminence and while I can’t remember all the sciencey details, they recommended a common chamber for my two 15’s. Also at the higher frequency you’re talking about here porting is not required and box size will have little effect on...
  10. AngrySailor

    Former carver owner now PL

    Carver C4000 pre feeding a bi amp system, PL700/1 runs the stereo cabs and a Carver monster PT-2400 runs the 18” subs 60hz and down. Quite happy with the sound and powah...
  11. AngrySailor

    PL400 series 1 popped short fuse. what to check?

    Looks like OP’s got a “Linda”...
  12. AngrySailor

    PL 700 Pro Build

    Nobody pushes the limits here Lee...:rolleyes:
  13. AngrySailor

    DENON DP 1500 FOUND!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Off to a good home Lee?
  14. AngrySailor

    J.A. Michell Prisma restoration

    Thank you for the offer of the legs for a pattern but I think with the Michel drawings I have and maybe some good pictures of yours we can probably get by without shipping parts around... the power switch is a magnetic actuated reed switch. Once you get your power cord replaced check the switch...
  15. AngrySailor

    J.A. Michell Prisma restoration

    Oh, just in case you didn’t see it back in the thread, are you aware of where the coarse speed adjustment pot is? You must remove the switch cover and expose the motor top, there is a small hole through the top of the motor case (maybe 3/16” hole”. Insert a 1/8” slot blade screw driver very...
  16. AngrySailor

    J.A. Michell Prisma restoration

    Yes, mine is in use now and working flawlessly. I still haven’t reproduced original style legs but it’s otherwise complete. What parts are you missing? Yours looks very complete by your photos but then again I’m on my phone and can’t blow them up real big... looks like your sweep brush is even...
  17. AngrySailor

    J.A. Michell Prisma restoration

    Hello and welcome. Nice score! Yes I did have a new dust cover made by Hank at P&A plastics in Hamilton Ontario, Canada. https://paplastics.com/ He did a very nice job of it. I’m quite happy with it. Michel was receptive to making a replacement cover also however the UK is a long ways from me...
  18. AngrySailor

    700/1 “Tim” WOPL driver board

    I could wire in a range switch like the 700b or Maybe even install a couple pots with a series resistor for minimum value? I’m not real fussy on messing with it, it’s just this 700/1 never danced the meters more than maybe 1/4 scale even driven hard. Seems off in that sense, Linda if I recall...
  19. AngrySailor

    700/1 “Tim” WOPL driver board

    Pretty sure I can dial them meters up a good bit. I swear I can clip the amp and they don’t even approach the red... I’ll try Linda’s 11k I think they are and see. Was reading over the assembly destructions for Linda’s backplane/chassis assembly today. That’ll be next project. Can’t wait to try...
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