Why are you connecting the tweeters in parallel to a single channel? Additionally, it's impossible to give recommendations for tweeters without knowing what your implementation is. What mids will you be using? How low do you need the tweeters to play? Can you fit large format or small format only? Will the tweeters be on-axis or off-axis? Do you have a preference in sound? And, again, why are you connecting the pair of tweeters to a single channel? will try to answer some of your question, as I am fairly new to this.... I am using a sax 100.4D ..ch 1 tweeters, ch 2 mids, ch 3/4 bridged for sub or mid bass depending if I extend the system by adding a dedicated sub amp later.. Using tweeters in parellel to maximise power from a single ch which would be 160 watts at 2 ohm load instead of 100 watts at 4 ohms. Will be using a pair (unknown as yet) of 6.5 mids 4 ohms in parallel, again to acheive 160 w instead of 100w, could do with that recommendation aswell....?? I can fit large or small format, do not know what you mean by on or off axis??, with respect to sound I am heading towards SQ as a total system. (also according to specs the amp is stable at 2 ohm stereo, and 4 ohm bridged) BAD! Do not do this... run channel 1 for a mid and a tweeter with a crossover either active or passive to split the signal... run channel 2 to run a mid and a tweeter with a crossover either active or passive to split the signal... Doing it the way you mention will give you a royally screwed up sound stage... I would bridge 3/4 and use that for rear fill or midbass either using you HU and amp or another crossover to bandpass them so you do not mess up your sound stage. Then i would get another amp to run a sub, the largest single sub possible to keep it simple..
