Hi,
I'm new to all this stuff so please forgive my constant underqualifed questions 😉
I've finished siming my XO and I want to purchase the parts. So I opened xsims wattage distribution graph, as recommend, in order to find out which resitors I needed to not A: melt or B: burn my house down.
Xsim is telling me that I need up to ~60watt resitors in a 100watt system (see photo). I'm new to all this so I don't know if thats normal or it sounds abit excessive? Just wanted to cross check with you lovely peolpe before I go off and buy the components.
If I do need a 60W reistor, is it possible and beneficial you use 3x 180ohm 20W resitors in paralell?
Thank you! Luke
I'm new to all this stuff so please forgive my constant underqualifed questions 😉
I've finished siming my XO and I want to purchase the parts. So I opened xsims wattage distribution graph, as recommend, in order to find out which resitors I needed to not A: melt or B: burn my house down.
Xsim is telling me that I need up to ~60watt resitors in a 100watt system (see photo). I'm new to all this so I don't know if thats normal or it sounds abit excessive? Just wanted to cross check with you lovely peolpe before I go off and buy the components.
If I do need a 60W reistor, is it possible and beneficial you use 3x 180ohm 20W resitors in paralell?
Thank you! Luke
Attachments
The job of a simulator would be to show the condition if the indicated input were applied, on a frequency by frequency basis... Now, in reality it will be quite different because there is less energy at the higher frequencies and an amp which is working normally full range will therefore not be offering 100W to the tweeter like that.
(P.s. you could have Xsim show individual driver phase, also you don't want R8.)
(P.s. you could have Xsim show individual driver phase, also you don't want R8.)
I was about to ask.....😱
I do not know Xsim, but use VituixCAD. If Xsim offers similar options, take Pink Noise as signal and set the crest factor to something like 6 dB.
Kind regards
Azrael
It doesn't. It's usually ok to begin with 5W resistors, and first time out feel them after using. Depending on sensitivity, crossover frequency, usage etc. some tweeter resistors can be as small as 0.25W, and some want to be larger. 10W is usually the larger capacity used and it doesn't hurt going larger than you need with a speaker.
Yikes. If you are running 150W program to the tweeters, then you shouldn't be using a passive crossover. It's time for an active crossover and PA amps.
This is a speaker for home use? As Allen stated, 10W is usually the largest seen on a tweeter. Less for home use.
This is a speaker for home use? As Allen stated, 10W is usually the largest seen on a tweeter. Less for home use.