Hmmmmmm well I have looked into this crossover stuff, but now I'm wondering. Do I really need a tweeter for vocals? I'm definitely going to use 2 8 ohm woofers parallel instead of 1 4 ohm woofer. They will be powered by a 125 watt amp at 4 ohms. I think I could make a crossover for a tweeter if I needed to, but this is just for vocals and vocals alone. I will be singing but I don't think the human voice can go but so high. What do you think? Thanks for all the help so far!
You will need a tweeter for vocals, yes. The tweeter handles all the ssss type sounds that the voice creates.
Hi,
I think you need to go to at least 10kHz cleanly to make a fair stab at reproducing voice.
And if you can get to over 15kHz then even better.
A single driver can get up there when designed specifically to act as a single full range driver, but not always cleanly.
Adopt a narrow band driver and try to run it full range and your sound will be "terrible".
I think you need to go to at least 10kHz cleanly to make a fair stab at reproducing voice.
And if you can get to over 15kHz then even better.
A single driver can get up there when designed specifically to act as a single full range driver, but not always cleanly.
Adopt a narrow band driver and try to run it full range and your sound will be "terrible".
Yeah you right you right. So I think I know what I'm gonna do. If I make a low-pass filler for the crossover on the woofers can I calculate the two 8 ohm parallel woofers as 4 ohms and just you one capacitor/inductor combination for both?
Hi,
One can use a single inductor on the bass/mid and one capacitor on the treble.
This gives a single pole filter for each half of the crossover. It provides no correction for the rising impedance of the voice coils with frequency, thus affecting the 6db/octave slope and phase.
It also provides no equalistaion to remove the peaks that exist in almost all drivers.
I have only bought ready made crossovers for pre-designed speakers (Richard Allan Pavanne, Tannoy Berkley, HiFi News KEF kit, WAD KLS3g. They worked well and the latter three had 9 to 15 components in each speaker.
Commercial speakers with minimal crossovers are almost always designed and made by the manufacturer, who has the ability to change the parameters of the driver to suit the low count crossover. This is almost impossible for the DIYer to emulate.
One can use a single inductor on the bass/mid and one capacitor on the treble.
This gives a single pole filter for each half of the crossover. It provides no correction for the rising impedance of the voice coils with frequency, thus affecting the 6db/octave slope and phase.
It also provides no equalistaion to remove the peaks that exist in almost all drivers.
I have only bought ready made crossovers for pre-designed speakers (Richard Allan Pavanne, Tannoy Berkley, HiFi News KEF kit, WAD KLS3g. They worked well and the latter three had 9 to 15 components in each speaker.
Commercial speakers with minimal crossovers are almost always designed and made by the manufacturer, who has the ability to change the parameters of the driver to suit the low count crossover. This is almost impossible for the DIYer to emulate.
I was at a pawn shop today and saw a pair of pioneer speakers at 160 watts 8 ohms. They were only $70 but my mom who likes to haggle was with me and got them down to $55 for the pair. That is a good deal I think. Cheaper than making my own. The fact that there was no shipping needed makes it a great deal. I'm sorry I asked so much about the crossovers!!!!!! Thanks everyone for all the help! I'm going to use a 125 watt amp at 4 ohms mono and connect both speakers to the same output to make the 8 ohms drop to 4. This rig should be a decent monitor system. Thanks again everyone.
Hi,
the amp will play better if you connect one 8ohm speaker to each output.
Then all you need is a Ycable to feed the same signal to both inputs.
Guess what? The amp will play louder as well as sound better.
the amp will play better if you connect one 8ohm speaker to each output.
Then all you need is a Ycable to feed the same signal to both inputs.
Guess what? The amp will play louder as well as sound better.
well it only has one mono output so this is the only way to get a 4 ohm load. The output is also a 1/4 jack. The input on the speakers are the red and black clamp kind.
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