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Dayton Audio ND20FA-6 3/4" Neodymium Dome Tweeter
Capacitor to protect these tweets?
How many uF do I need in a capacitor to high pass these tweeters at 4kHz OR 6kHz?Thanks in advance for the reply!
Tweets should typically be protected by a 12 db filter. (2nd order). Some tweets specify a 3rd or higher order. You might be able to get away with a first order when you cross it at 6khz.My crossover calculator is probably completely broken. There are several web-based calculators out there I suggest you try one of those. The only trick is that you need to select what filter type you want, I like the Butterworth filter, others like the Linkwitz-Riley. There are many issues involved.
Date published: 2012-05-27
Calculating crossover frequencies
How would I go about choosing which filter components I should use with these tweeters?Do I plug in the Re to a calculator, or 6 ohms, or 8 ohms?I need two things to use a calculator and that is Resistance and Frequency. I know the frequency I want to cross these at, but I'm not sure what value I should use for resistance...
The Resistance (Re) is 5.2 Ohms. The Impeadence (Z) is 6 Ohms. The Crossover component "wizard" doesn't list 6 ohm impeadence drivers, so for any given frequency, you add the 4 and 8 ohm values in the tables and divide by 2. This isn't a "precise" answer, but like hand grenades and atomic bombs, it's usually "close enough". There's alot more other "stuff" that happens with a speaker that makes more difference than this. I've played at speaker building since I was about 10, and I know I don't know more than I know!;)
Date published: 2011-07-28
How well do these do off-axis?
For information of this type, you can get manufacturer graphs and data in the manuals and resources area on the same page just to the right of the product description. From use and testing, this driver has fairly good off axis response, generally above 6k the response drops off as you move away from dc. Most notably 10k - 20kHz. But in listening, I personally prefer slightly off axis as many tweeters of this type can be overly bright on axis. This driver is less fatiguing, and is more open and airy, than other "budget" tweeters.
Date published: 2013-06-16
Im trying to make a small speaker project and this is the only tweeter that will fit, so im going to put two 4 inch woofers PN 292-404 with a 1.5 MH coil PN 255-052 what capacitor should I use now heres the thing. I will be using this on the Sherwood RX-4109 receiver PN 252-230 and it will only accept a 8 ohm load or else it overheats and shuts off but these are 6 ohm so will it just get warm or still shut off
With a tweeter like that you will want to use a small cap, something like 2.5 or 3 uF. Crossing the tweeter this high will not hurt the receiver, there is very little current draw at those frequencies.
Date published: 2013-05-13
I have them in use with a Dayton DC160-8 and a RS52AN-8 2" Dome Midrange. I am x-over at what I believe 650/8000. Can I attenuate the tweeter with Ωs to tone it down. I had to add 8Ω to the mid and that helped. Or do I need different x-over points.tweeter:21.54uF/0.41mHmid: 21.54uF/4.22mH 0.41mh/1.75uF (bandpass)woofer: 4.21mH/15.76.IN a .57 cuft box tuned to 45hz. Bass is ok. The rest is just too much. Tweeters are mounted in a baffle-less "egg" setup
Usually, a resistor will lower the volume w/o changing the crossover point "IF" it is inserted between the crossover's input stage and the high pass filter. An 8 ohm resistor will decrease the volume of this 6 ohm tweet by about -3 or -4db. A 16 ohm would be around -6 or-7 db. Check PE's "building crossovers" or "building loudspeakers" for the exact numbers. You can always use a pre-made variable"L" pad for this as well.
Date published: 2013-10-11
What size disconnects should I use with these?
These are 1/8" wide spade lugs, so you need 1/8" 18ga minimum slip-on lugs, crimp or solder.As a rule, I solder all speaker connections and restrain wiring with tie-wraps to the speaker frames. This does not require lugs, but mainly for troubleshooting; knowing the speakers are soldered, a failure [no sound] is likley something else [on the outside]. This goes especially for HT ceiling and wall installations.
Date published: 2012-02-04