Dec 22, 2007 05:17 pm "Daisy Chain" is just goin into one device with the line in, running the the line out into the next, etc...in to out to in to out to in to out...ad infinitum
Daisy Chaining?
Posted on Dec 22, 2007 05:10 pm
HiTmAnPaNiC
Member Since: Nov 28, 2007
I just read the thread on using multiple speakers and splitting up the frequencies into different speakers (How'd They Do That?). I'm a bit new to this and I've normally only run a simple two speaker set up for live gigs but I'm trying to add two subs to my system and two other's as well (10's or 12's). I understand the use of a crossover but I am not at all familiar with daisy chaining. If someone could explain that setup to me I would appreciate it.
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Dec 22, 2007 05:17 pm "Daisy Chain" is just goin into one device with the line in, running the the line out into the next, etc...in to out to in to out to in to out...ad infinitum
Dec 22, 2007 05:23 pm But be careful of daisy chaining loudspeakers with inputs wired in parallel. Link too many together and the impedance will drop dangerously low and you could witness the magic smoke arise from your amplifier....
Dec 22, 2007 05:25 pm it smells kinda bad too in the worst burn...
Jan 01, 2008 12:37 am A crossover is an analog or digital device that will split the incoming wave into differnt band passes. Now, what is a band pass. A band pass refers to the group of frequincies going to a single output. Example. A sub will run from around 20hz to where ever the next driver (speaker) starts at. Typical is about 125hz. So, you need a device to send only 20hz to 125hz just to the sub. Enter the crossover. There are just as many crossover types as there are manufactures, and applications. You need to know what your requirments are to find the best one sutied to your needs. When crossovers are discussed, you will see numbers mentioned like 2 x 3. The first number refers to the number of input to the unit. So, in the case I just stated. We have 2 inputs. The 3 is obviously the outputs per input. So here we have 3 outputs per input. So 6 in total. With this crossover we can run the left right and sub, mid, high, of your system.
Now, for daisy chaning. Their are some important details to know about this. First of all, you must know the rating of your amp. All amps will give their power rating at an ohm load. Such as 200 watts @ 8ohm load. If no other rating is listed, then an 8ohm load is all you should put on it. Second, you must know the ohm load of you speaker. Almost every speaker will tell you it's ohm load. It is usually printed where you plug your speaker cable in at. Armed with this information, you can now do a simple math equation to find out how many speakers you can put on that side of that amp. The equation is Ohm x ohm / ohm + ohm. So, if your amp has a 2 ohm rating. And your speakers are at 8ohms, and you have two of them. you just multiply 8 x 8,(64). Then 8 + 8 (16). Then 64 / 16 = 4ohm's. You can safely attach the speaker to the amp. Now, this is only for parellel. If you are wiring in series, it's a different equation. (If you don't know the differance between series and parellel plaese look it up first!!!!!) It is just simply ohm + ohm. So, in our case, 8 + 8 = 16. Still safe to hook up to our amp. Since a 16ohm load will reduce the current considerablly. It is very safe to hook up. Try never to exceed 16, or reduce below 2, and you should be fine. hope that helps!
Jan 01, 2008 03:18 am Sorry for the redundant info on a crossover. I figured other readers may need the information.
Jan 01, 2008 10:10 am That information was actually very helpful thanks a lot.
Jan 01, 2008 12:35 pm Indeed, crossover was what interested me...that was the question I'd hoped to see answered (crossover) since I knew about daisy chaining.
Thanks a lot for the info!!
Jan 01, 2008 02:58 pm I'm glad to hear that the information was usefull. If you need more detailed information on these subjects, please feel free to ask. I can cover information on delay time, slope, notch filters, and so forth.
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