NoiseOfTheFloyd

03-07-2009, 09:02 PM

So I am looking at tweets on Madisound.com

Some of those that interest me have an 8 ohm impedance. I get impedance to some degree. I know that speakers that are rated 100 watts at 2ohms would do 50 @ 4ohms and 25 @ 8 ohms, etc. At least I think that's right. That's all if the speaker can handle that ohm-load.

Now. . .

If I bought a pair of 8ohm tweets and had an amp that does 100 x 2 @ 4ohms, what would happen? Would I be doing 50 @ 8 ohms or would the speakers be getting a 4ohm load and getting 200 watts RMS? Which piece determines the impedance, the speaker or the amp? Can the speakers/amp handle that? I don't have comps, but have a high-end Eclipse HU (7100) which is very detailed as far as setting frequencies goes. The tweets will have an entire amp dedicated to them. Basically the same for the mids. Both amps have crossovers on them.

So what do people suggest? Should I be looking at 4ohms tweets only or would it work with 8ohm tweets. What tweets would you get if you had $200-$300 to spend on a pair? I was looking at brands like Fostex, Morel, Dynaudio, SEAS, Focal, DLS, and Murata (sp?). Should I be looking at something else?

Thanks for your thoughts. . .

Matt

Some of those that interest me have an 8 ohm impedance. I get impedance to some degree. I know that speakers that are rated 100 watts at 2ohms would do 50 @ 4ohms and 25 @ 8 ohms, etc. At least I think that's right. That's all if the speaker can handle that ohm-load.

Now. . .

If I bought a pair of 8ohm tweets and had an amp that does 100 x 2 @ 4ohms, what would happen? Would I be doing 50 @ 8 ohms or would the speakers be getting a 4ohm load and getting 200 watts RMS? Which piece determines the impedance, the speaker or the amp? Can the speakers/amp handle that? I don't have comps, but have a high-end Eclipse HU (7100) which is very detailed as far as setting frequencies goes. The tweets will have an entire amp dedicated to them. Basically the same for the mids. Both amps have crossovers on them.

So what do people suggest? Should I be looking at 4ohms tweets only or would it work with 8ohm tweets. What tweets would you get if you had $200-$300 to spend on a pair? I was looking at brands like Fostex, Morel, Dynaudio, SEAS, Focal, DLS, and Murata (sp?). Should I be looking at something else?

Thanks for your thoughts. . .

Matt