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babadono

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Posts posted by babadono

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    in Garage Sale

    Posted

    Wish I would have seen this earlier in the day. When you bridge an amplifiers output the load gets cut in half(half the ohms, double the current). So for instance as in @Westcoastdrums application his 4 ohm load is going to look like a 2 ohm load to the amps output. Each output post sees the speaker not as a 4 ohm load to ground but as a 4 ohm load to a voltage that is equal in magnitude but opposite in polarity effectively making it look like 2 ohms to ground.

    Cables, Coffee, Cycles, and Cocktails

    in Lounge

    Posted

    On ‎12‎/‎1‎/‎2018 at 4:38 PM, CECAA850 said:

    Son in law works for a spray foam company.  Basically they spray it flush or beyond and trim it flush to the face of the studs with long saw blades.  You want it to seal everything.  Basically it will be like a big cooler.

    Spray foam insulation is da bomb! Did the underside of the roof and all inside walls in my house. Outside walls are ICF so they already have 5 inches of foam. My attic stays within 15 to 20 degrees of the inside temp of the house. They did not bother trimming any overspray on the underside of the roof but in the walls yes they trimmed it flush with the studs with a big sword like hand held saw. They left it behind when they were finished, its still out in the garage. The foam is so effective because it seals all leaks. Standard insulation sags and gaps and does not provide a true seal.

    • Like 1

    Can we talk 2" midrange drivers?

    in Technical/Restorations

    Posted

    Ah  .... don't we use TADs down that low on Jubilees? or pretty dang close? Nevermind that they're darn near unobtanium. I used BMS 4592 mids on Fastlane"s BIG eliptrac horn with ALK ESN 400s on KHorn bottoms. But they still were 3 way. Sounded pretty good to me(no measuremnet data) but I'm a doofus:)

    What about B and C DCM50s? Are they unobtanium now also? Either BMS mid or DCM50 will still need a tweeter.

    Strange AA crossover

    in Technical/Restorations

    Posted

    On 11/24/2018 at 4:44 AM, pzannucci said:

    Am I seeing right?  Is there a wire also across the one cap (or I'm blind)?  How does that work?  Something special here!!  

    :emotion-46::emotion-46::emotion-46::emotion-46:

    Now we're ready to plug it in.

    Didn't even notice that at first glance. And it looks like it has a smaller value "bypass" cap across it too..to make sure it is a short at super high frequencies:)

    Thinking of adding subwoofer with La Scalas

    in 2-Channel Home Audio

    Posted

    Plan A would be 2 cables, both a left and right. Plan B would be 4 cables. It would return a high pass filtered signal from the sub to your main two channel inputs on the Sansui.

    From the SVS website data on the SB-2000:

    Fixed 80 Hz 12 dB/octave high pass filter on line level outputs.

    With LaScalas as your mains I would not think you have to worry too much about a high pass filtered signal going to them. Just let them naturally roll off at the low end and let the sub add the lower octaves.

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