Hi.
I have these tweeters:
1/2" mylar dome shielded tweeters:
Low mass Mylar dome extends response:
Includes bypassable 2.2Ω, 5 watt padding resistor:
Specifications:
Power handling-30 watts RMS/60 watts max (with 6,000 Hz 12 dB/octave crossover):
VCdia-1/2":
Impedance-8 ohms:
Re-8.27 ohms:
Frequency response-6,000-20,000 Hz:
Fs-3,500 Hz:
SPL-88 dB 1W/1m:
I,ve been looking for a 6,000 hz 12 dB/octave for these tweeters, do you know where to buy or can i use an alternative easy to find crossover?
I have these tweeters:
1/2" mylar dome shielded tweeters:
Low mass Mylar dome extends response:
Includes bypassable 2.2Ω, 5 watt padding resistor:
Specifications:
Power handling-30 watts RMS/60 watts max (with 6,000 Hz 12 dB/octave crossover):
VCdia-1/2":
Impedance-8 ohms:
Re-8.27 ohms:
Frequency response-6,000-20,000 Hz:
Fs-3,500 Hz:
SPL-88 dB 1W/1m:
I,ve been looking for a 6,000 hz 12 dB/octave for these tweeters, do you know where to buy or can i use an alternative easy to find crossover?
Suggest you "google" something like "8ohm speaker crossover values" and you will pretty soon have charts of values for the different capacitors and inductors (coils) for differing frequencies that you can purchase to make your own. They almost always will have a wiring diagram too..........
Definitely remove the resistor to start with.
You will almost certainly find a "tute" on crossovers. All this just takes time and as you are on a "diy" forum you will get the satisfaction of doing it yourself.
Cheers and a happy New year
from "Oz". Regards, Jonathan
Definitely remove the resistor to start with.
You will almost certainly find a "tute" on crossovers. All this just takes time and as you are on a "diy" forum you will get the satisfaction of doing it yourself.
Cheers and a happy New year
from "Oz". Regards, Jonathan
Here in my country is a little difficult to find components, so i was hoping to find something already built in the internet, any options? I was thinking on removing the resistor and buy a 2.5hz crossover or something like that.I see that the fs is 3.5 hz.
leave the resistor on there. Tweeters are usually 3-4 times louder then the woofer and the resistor pads that and keeps some of the current from going through the tweeter.
If you use just a capacitor you get a 6db crossover, capacitor and coil gives you a 12db but then you have to reverse the polarity so the tweeter is in phase with the woofer.
A 3.1 uf capacitor your crossover is going to be around 6k but you will lose 1/2 the power rating. If your getting 30 watts to a tweeter your deaf.
I normally run a 2.2 capacitor on tweeters. Only the stupid ever blow them.
If you want more protection you can wire a small light bulb in series.
Most of the home stereo gear I see doing that use the dome light bulbs designed for cars.
They work because the tungsten filament increases resistance as it heats up. A poor man's soft knee compression.
If you use just a capacitor you get a 6db crossover, capacitor and coil gives you a 12db but then you have to reverse the polarity so the tweeter is in phase with the woofer.
A 3.1 uf capacitor your crossover is going to be around 6k but you will lose 1/2 the power rating. If your getting 30 watts to a tweeter your deaf.
I normally run a 2.2 capacitor on tweeters. Only the stupid ever blow them.
If you want more protection you can wire a small light bulb in series.
Most of the home stereo gear I see doing that use the dome light bulbs designed for cars.
They work because the tungsten filament increases resistance as it heats up. A poor man's soft knee compression.
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If you look at the picture of the tweeter it looks strange it appears as if a 2.2 ohm resistor is in parallel with the tweeter. If indeed this is the case then it's a cheap way to flatten the impedance peaks but from a crossover point of view you would treat this as a 1.8 ohm tweeter not a 8.27 ohm one !
Hi,
The third (small) terminal is visible behind.
Connect to either large terminal for direct or 2.2R in series.
All you need is a simple series capacitor, 3.3uF.
They don't need a 12dB x/o. With the above they
will give an ~ 18dB/octave acoustic roll-off at
a somewhat lower frequency than 6KHz, usually
around the tweeter Fs or somewhat higher.
They are cheap and Chinese. Don't use them
in anything other than something very basic.
rgds, sreten.
The third (small) terminal is visible behind.
Connect to either large terminal for direct or 2.2R in series.
All you need is a simple series capacitor, 3.3uF.
They don't need a 12dB x/o. With the above they
will give an ~ 18dB/octave acoustic roll-off at
a somewhat lower frequency than 6KHz, usually
around the tweeter Fs or somewhat higher.
They are cheap and Chinese. Don't use them
in anything other than something very basic.
rgds, sreten.
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