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<blockquote data-quote="keep_hope_alive" data-source="post: 7488569" data-attributes="member: 576029">no one answered the question.&nbsp; //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifyou can run tweeters in series, and the impedance will be the addition of the two.&nbsp; so two 4 ohm tweeters in series will present an 8 ohm load.&nbsp; the down side is that the inductance will add as well, meaning a greater increase in impedance as frequency increases.&nbsp; as a result, you will have a roll-off in output at high frequencies.&nbsp; this may not end up being a bad thing, or maybe you just increase the treble setting a few notches.yes, you need a passive crossover protecting the tweeters.&nbsp; a simple capacitor will do, can be had for a dollar or so at Radio Shack (make sure they are non-polarized and at least 100V).&nbsp; what value capacitor depends on the impedance load.&nbsp; you don&#039;t want to just use random crossovers when pairing speakers since the crossover value changes with impedance.some calculators and tables to help in determining what size cap you need.<a href="http://www.ajdesigner.com/crossover/crossoverfirst.php" target="_blank">Passive Crossover Design Equations Formulas Calculator - Two Way First Order Network Butterworth</a><a href="http://www.termpro.com/articles/xover2.html" target="_blank">Designing Passive Crossovers</a></blockquote>

[QUOTE="keep_hope_alive, post: 7488569, member: 576029"] no one answered the question. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] you can run tweeters in series, and the impedance will be the addition of the two. so two 4 ohm tweeters in series will present an 8 ohm load. the down side is that the inductance will add as well, meaning a greater increase in impedance as frequency increases. as a result, you will have a roll-off in output at high frequencies. this may not end up being a bad thing, or maybe you just increase the treble setting a few notches. yes, you need a passive crossover protecting the tweeters. a simple capacitor will do, can be had for a dollar or so at Radio Shack (make sure they are non-polarized and at least 100V). what value capacitor depends on the impedance load. you don't want to just use random crossovers when pairing speakers since the crossover value changes with impedance. some calculators and tables to help in determining what size cap you need. [URL="http://www.ajdesigner.com/crossover/crossoverfirst.php"]Passive Crossover Design Equations Formulas Calculator - Two Way First Order Network Butterworth[/URL] [URL="http://www.termpro.com/articles/xover2.html"]Designing Passive Crossovers[/URL] [/QUOTE]

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