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110 Ohm 1W Flameproof Resistor 10 Pcs.
Is 1w enough?
I want to build a top box with 4, 4 ohm super tweeters. Wired in 2 parallel sets of 2 in series, for a total of 4 ohm. I also want to add a HP filter set to somewhere between 10 and 15kHz. Should I put a filter over each driver? Or just on the input? And with up to 600w available for input into the box (rated at 1k) wouldn't 1w be too little disipation, even granted that the vast majority of the enegy is going to go through the driver(s)? Sorry for duplication, but I have similar concerns with the capacitors. I'v considered wiring the resistors in 2 sets of 2 as well, to split the current, but wouldn't that mess with the function of the filter??
The filter circuit it is looking at the total load of 4 ohms, so only one network is needed.The caps. should be rated to 250 volts or more as this increases the power handling.Combineing resitors into a network to handle more power is the way to go,the rest of the circuit see this as 'a' load.You get better heat dissapation then if you only used one high wattage resitor. As far as total power handling , apx. 75% or more of the power is below 600 - 1KHz,at 10KHz. you are looking at 5% or less of the total signal.I would be surpised if you ever put more than 10 watts through these drivers.Your ears are more senstive to highs and the motors for high freqs. are that more efficent.i.e. each octave below this point requires twice the power and excursion to have the same 'apparent' volume.
Date published: 2012-07-07