New speakers, crossover question

New speakers, crossover question

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gareth h

Original Poster:

3,763 posts

237 months

Tuesday 2nd July
quotequote all
I’m upgrading the door speakers in the 993, the Audison components have a crossover which then feeds the tweeter, I’m using the existing wiring to feed the mid speaker.
My query is, can the crossover be wired into the mid speaker terminals (piggybacking off them) or does it need to be spliced into the speaker wires before the speaker terminals (if this makes sense!)?
Thanks
G

MattsCar

1,261 posts

112 months

Tuesday 2nd July
quotequote all
The crossover is designed to provide a crossover point for the tweeters and midrange with a certain slope and certain frequency point, which the designers set, to ensure that the tweeter and midrange integrate correctly.

Piggy backing will technically work, but what you are going to be doing is feeding the midrange speaker a full range signal, part of which should be covered by the tweeter and then having the tweeter playing it's specific frequency range in addition.

There is also the issue of impedance, the ohmage load, you will be showing the amplifier, being not correct as you will be running the speakers in parallel, so not playing at matching volumes.

Do it correctly as intended and it will sound better.

Edited by MattsCar on Tuesday 2nd July 21:44

defblade

7,623 posts

220 months

Tuesday 2nd July
quotequote all
I've just fitted a set of Audisons, and it's exactly as the OP says - they don't have a crossover filter for the mids, just a small filter for the feed to the tweeters, so the mids do get a full-range signal by design (actually mine are HPF'd on the DSP, but that's another story and the other end of the frequency range).

I did think it was a bit strange, but I guess Audison feel the mids are simply unable to reproduce the higher frequencies, so a waste of time giving them a crossover???
Either way, they still sound very good smile

MattsCar

1,261 posts

112 months

Tuesday 2nd July
quotequote all
Ok, I have seen that on some lower end speakers before. Surprised Audison do that, guess this is the lower end range. Assumed the crossover was a 2 way type hence my answer.

If that is the case, then you can just extend from the terminals of the mid range speaker.

While I am sure they sound "good" it is not an ideal way to crossover speakers and the midrange will be playing frequencies that should be filtered.


gareth h

Original Poster:

3,763 posts

237 months

Wednesday 3rd July
quotequote all
Great, thanks chaps, the car is pretty noisy so I’m not expecting miracles, but the OE speakers were knackered, so hopefully a decent improvement

defblade

7,623 posts

220 months

Wednesday 3rd July
quotequote all
MattsCar said:
Ok, I have seen that on some lower end speakers before. Surprised Audison do that, guess this is the lower end range.
It's lower end for Audison, yes wink Comparing, for me, against a set of fully crossed Focal Access (about half the price) I've been running for the last few years/2 cars.

TEKNOPUG

19,334 posts

212 months

Thursday 4th July
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What's the HU?