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components, tweeters and Crossovers

To clarify - that's In Car Entertainment - not frozen water
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grant_day
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components, tweeters and Crossovers

Post by grant_day » Thu Feb 02, 2012 11:04 pm

I've recently purchased some component speakers and with them came some tweeters and crossovers...
I understand that crossovers are to split the high and low sound frequencies so high go to tweeters and low to components, but there are no installation guides with the box.
Do I connect the crossovers to the amplifier then the components and tweeters to the crossovers?
Also I read somewhere on someplace the crossovers MUST be connected as close to the speakers as possible. Would this make that much difference?
And where is the best place to run the
A) power cable to the amp from battery
Passenger or drivers side
B) phono cables from the head unit to amp
Passenger or drivers side
C) remote cable for the amp
Passenger or drivers side

And.. yes more .. :o

Is it ok to cut holes into my post facelift tweeter covers so the tweeters can sit in them? The brackets that came with just don't want to fit anywhere behind the covers


Thanks to all the Audio specialists that are going to help :mrgreen:

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RattyMcClelland
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Post by RattyMcClelland » Thu Feb 02, 2012 11:31 pm

Components speakers are mids tweeters and crossover. 3 components.

And yes you connect the tweeters to the tweeter output on the crossover and use the tweeter attenuation to the deisre level ie +3 or-3db.
The midbass or midrange goes to the low output and the input on the crossover is from the amplifier. The amp will connect to the headunit via RCAs.
Quite straight forward.

Remote cable switches the amp on from the headunit. Ground the amp near the back of the car onto clean metal and not paint. Power from battery. All wires can be next to each other. It wont make ANY difference. People who say there is interference clearly cant wire properly.

You can mount the crossovers in paris if you want as long as the cable is long enough. 8-) Many people put them in the doors but IMO mount them next to the amplifiers and run all 4 sets of speaker wire to the 4 speakers. Done.
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grant_day
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Post by grant_day » Thu Feb 02, 2012 11:38 pm

What's the main cause of interference? In a friends car all you can hear is the whine of interference when he accelerates, :roll:
It's really annoying and something I really want to avoid. :)

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Post by RattyMcClelland » Fri Feb 03, 2012 12:34 am

Thats alternator whine. Basically its a grounding issue where the signal is picking up the voltage from the alt and causing a whine.
Sometimes its hard to remove. Basically to avoid it
- Good quality RCA cables, nothing expensive but nothing each. £10-20 will do.
- Adiquate size power cable. Either 0awg or 4awg and fused properly. 100-150amp on 4awg and 200-300 on 0awg.
- CLEAN GROUND. I use the back most point of the car and sand papered the metal and grounded it there.
- Iv also got new power and ground from my fused distribution block in the boot to the headunit so it all shares a common ground. I onlu use the cars ignition switch for power.
- All cables are fine next to each other but when there is alot you can put the power on the drivers and the RCA on the passengers.
- The Big 3(TB3). Mean upgrading the 3 important wires in the engine bay. The Battery neg to chassis ground, the engine to chassis ground and alternator to battery positive. In the Lude its different on the positive battery side. You need to upgrade the positive to under bonnet fuse box.

Do that and you will be fine.
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Post by grant_day » Fri Feb 03, 2012 1:15 am

Awesome, will do this as soon as I get a spare couple of hours, thanks :mrgreen:
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Post by indigolemon » Fri Feb 03, 2012 1:06 pm

RattyMcClelland wrote:... You can mount the crossovers in paris if you want as long as the cable is long enough ...
:shock: Yeah, as long as the cables are long enough :lol:
'On two occasions I have been asked, 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.' - Charles Babbage

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Post by RattyMcClelland » Fri Feb 03, 2012 7:44 pm

Any help needed just post up here. I will help out.
Im in the process of doing it also.
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grant_day
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Post by grant_day » Thu Feb 09, 2012 8:03 pm

Fitted the crossovers to the top of the glovebox, ...
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And cut out the plastic in the tweeter covers and stuck the tweeters to them..
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A pic from the front,
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I would post a pic of them fitted back in place but.. it looks like it did before i removed them 8-)

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Post by RattyMcClelland » Fri Feb 10, 2012 12:13 pm

They will be quite harsh sounding. They are metal dome tweeters and on axis like that will be harsh. See how you like it and you can always angle then across the dash.
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Post by grant_day » Fri Feb 10, 2012 5:21 pm

They sound okay to me , just need to adjust a bit for slightly more bass, also I've noticed the whining noise, its only very quiet (not the missus) but its there. I've got a good earth on, power cables are separate from other cables etc ... Awww man :evil:

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