WTF is this?

"razorbeamteam" (razorbeamteam) 11/16/2017 at 22:32 • Filed to: Range Brover

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Took the front door panel off to discover my second door speaker isn’t a speaker at all! I don’t know jack about audio, but it was wired to the actual speaker at the top. The other side is just a metal plate with some foam on it.

The kicker is that there’s a speaker cover on the other side, as if sound comes out of there. This is a County so it’s supposed to have an ADS system, which is supposed to be good? I don’t know I’m confused.

Tohru > razorbeamteam 11/16/2017 at 22:38

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looks like some kind of old school audio crossover, to keep the bass out of the small speaker and avoid distortion

MM54 > Tohru 11/16/2017 at 22:40

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This

Wacko > Tohru 11/16/2017 at 22:43

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That

deekster_caddy > razorbeamteam 11/16/2017 at 22:51

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A quick google confirms crossover

http://www.jpurnell.com/rr/repairs/StereoInstall.htm

Urambo Tauro > razorbeamteam 11/16/2017 at 22:59

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Tracking device. Smash it.

Tekamul > razorbeamteam 11/16/2017 at 23:09

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As others said, that’s a cross over. It looks like there was a better audio option, which is why there’s a grill.

That inductor is looking rough.

RPM esq. > razorbeamteam 11/17/2017 at 02:58

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It’s a bomb like the one on the bus in Speed, but it was wired into a Land Rover’s electrical system, so its circuits were fried within minutes.

jimz > Wacko 11/17/2017 at 05:27

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the other thing.

random001 > Tekamul 11/17/2017 at 07:43

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I’d probably say the “grill” is a heat vent, rather than another audio option. Enclosed space and ancient electronics never really mixed.

razorbeamteam > RPM esq. 11/17/2017 at 09:36

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Good, because it’s harder to maintain 50 mph in the rover

ateamfan42 > Tekamul 11/17/2017 at 09:42

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Obviously a passive crossover.

To elaborate, for the uninitiated: An audio crossover is a set of filters, which route the low frequencies to the woofer and the high frequencies to the tweeter (and the mids to the mid-range driver in a 3-way system).

Many modern systems do the filtering at the signal level, before amplification. This requires more amplifier channels: A stereo 2-way system would need 4 channels. This is known as an active crossover. What is in the photo is a passive crossover, which filters the signals after the amplification (so a stereo system only needs a 2-channel amp). This is a little less efficient, since there is some power loss in the crossover itself.

Takuro Spirit > Tohru 11/17/2017 at 10:19

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It clearly says BLM on it

#BassLivesMatter

Tekamul > random001 11/17/2017 at 10:49

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Eh, the cross over is going to dissipate significantly less heat than the speaker it feeds, and that ancient thing is lucky if it’s 20 watts. Besides, there are reliefs in the panel for speaker mount points.

DarrenMR > jimz 11/20/2017 at 11:40

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Yada yada yada.