if I have two horns with a 4.7UF 100V Crossover Capacitor, do I need to use a Capacitor for each horn if I am connecting the in series or will one Capacitor do both Horns?
@mktaha
2 жыл бұрын
I have a pair of Bose 151s.. I noticed they have 3 speakers connected in series and the crossover is connected in series with them... I thought crossover was to split the frequencies... what's the point of this crossover if the speakers are connected in series?? Thanks.. if you can point me to an article or a video that would be great.
@AudioTalk
2 жыл бұрын
Not sure exactly what Bose did on that model, but if there is only fullrange speakers it could be a notch filter to make them sound more full. audio-at-home.com/notch-filter-experiment . The price for doing that is lowering of the sensitivity, but with 3 speakerdrivers it might be a good trade-off. So a sort of passive EQ is my guess they have done. Them all being in Series is probably just that they each have a low impedance.
@mktaha
2 жыл бұрын
@@AudioTalk Thank you for your reply. If you google "Bose 151SE service manual" you'll be able to see the PDF with the circuit inside. Perhaps that would shed some light on what they are doing. But a notch filter makes sense... Yes, the impedance of each driver or "twidler" as they call them is 1.4Ohm.. so the total is 6 Ohm nominal, 4.8 minimum.
@AudioTalk
2 жыл бұрын
@@mktaha yes, that was exactly it a notch filter. Without it, those fullrange speakers would probably sound like they where meant for intercom and not music.
@mktaha
2 жыл бұрын
@@AudioTalk Thanks again! Mystery solved... now I'm going to try to figure out the exact effect of this circuit on the frequencies..
@stefanyen8903
4 жыл бұрын
I have recently installed a tweeter to my car stock audio system. The new tweeter at 4 ohm came with small resistor 47 micro farad on the positive wire. I am connecting these tweeters to my front stock mid bass speakers (4ohm). My car audio player only support speakers from 4 to 8ohm. Initially, I try to connect the tweeter and the front speaker in series so that the total speaker and tweeter ohm is still within the player ohm which is 8ohm. Unfortunately, the sound of these tweeter and front speaker were too low as compared to the back speakers. Probably because of the tweeter resistor. Now, I am connecting these tweeter and front speaker in parallel, they sound OK. But I worried this 2 ohm will eventually damage my player. My questions are 1. Is there a better solution to this? 2. Can an additional passive crossover help to put these two speaker and tweeter back to player working ohm (4 to 8ohm)?
@stopthephilosophicalzombie9017
3 жыл бұрын
What's that little amp you have the speaker connected to in the beginning of the video?
@AudioTalk
3 жыл бұрын
Its a FX audio class D board with 7498 chip on it, but I don't believe FX-audio is selling boards anymore, I think they only do full amp designs in enclosures. Well made electronics.
@keiannschyler
Жыл бұрын
how do you connect a speaker system (full range with woofer, mid, and tweeter + crossover) in series?
@AudioTalk
Жыл бұрын
There is unfortunately no simple answer, it all depends on how each driver impedance is being handled by the the crossover, and lastly what kind of amp you are connecting as far as impedance load capability. A crossover is a distributor of frequencies designed for a specific impedance, and the crossover is also levels the total impedance and sensitivity. So the crossover is the one connected to the amp and from there the drivers are connected.
@keiannschyler
Жыл бұрын
@@AudioTalk no specific amp actually.. let's say a power amp. and yep, crossovers are the one facing the amp, not the actual speaker driver itself. so, in short, how to connect two crossovers in series? is it safe for the amp? if it is not, what is the effect on the amp? thank you.
@AudioTalk
Жыл бұрын
@@keiannschyler So lets say all on the same amp channel, then it will depend on the total impedance of each of those crossovers with the drivers connected. So if its 4 ohm impedance you would need to series connect, and if its 8 ohm impedance you likely are fine to connect in parallel, just as long as your amp can take a 4 ohm load. Connecting 2x 8 ohm speaker loads i series will give 16 ohms and will allow very little power, so not unhealthy for the amp but low performance.
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