{ "numMessagesInTopic": 12, "nextInTime": 1951, "senderId": "OsMhGS02Bhj_kZkw8YShg2k83yb_IYnaX7xJ8pbbuAPZd6zluOLHgBFYnDDFgRezcSfJGL8VSHfdrN2B8ewcvuqI2lxw6fN7f18", "systemMessage": false, "subject": "Re: First time hooked up and sans computer (long) 100 hz tone....", "from": ""Tom Hole" <tomhole@...>", "authorName": "Tom Hole", "msgSnippet": "Doug, I didn t get to try anything but the basic 100Hz going through the mains and subs. Wasn t an easy way to reverse the polarity of the mains (active", "msgId": 1950, "profile": "thomasandrewhole", "topicId": 1941, "spamInfo": { "reason": "0", "isSpam": false }, "replyTo": "LIST", "userId": 133251466, "messageBody": "
--- In 01v96@yahoogroups.com, "Carol" <frankwa@p...> wrote:
\n>
\n> >
\n> > Doug,
\n> >
\n> > I hadn't thought of that, but I will try it today. Where's the
\n> beer
\n> > tap on this thing?
\n> >
\n> > TOm
\n>
\n>
\n> One more thing I would like to add.
\n>
\n> Should you give this a try. Have one mid high about 1 foot away
\nfrom
\n> the 18 inch sub facing it. Just for the test have them at the same
\n> output volume. Checking one at a time then both on at the same
\ntime.
\n> In good alignment there should be close to a 6db increase in
\noutput
\n> with them both on.
\n>
\n> Then start adjusting the delay time for the loudest output.
\n>
\n> If you invert the polarity on the sub or midhigh the lowest output
\n> will be the best alignment. When you turn the polarity back the
\n> output will jump up.
\n>
\n> One other thing. As you add more delay you will see the level rise
\n> and fall as you align to later and later cycles. I don't know how
\n> much group delay you have in your sub boxes. I would get the first
\n> delay time around the 14 ms target range then find the next one up
\n> around 20? or so and see which one sounds the best. I always seem
\nto
\n> like the longer around 20+ delay times in alignment between subs
\nand
\n> mid highs. Of course smaart shows me the correct one as when you
\n> invert polarity it shows a straight line not leaning left or right
\nat
\n> the crossover point.
\n>
\n> Let us know what you find.
\n> Kindest regards
\n> Doug