2012 -2014 Lexicon system door spkrs

[JBoogie]

I know that there are 2 spkrs in each of the front doors.. Does anyone know what size each of those spkrs are?

Thanks.

 

[Mark_888]

I know that there are 2 spkrs in each of the front doors.. Does anyone know what size each of those spkrs are?

Thanks.

I would not recommend replacing them with something besides the OEM ones, because the head unit frequency response is custom equalized to the characteristics/limitations of the exact OEM speakers. Also, they are not standard impedances, so the volume and amplifier load will be different if you replace them with after-market ones.

 

[JBoogie]

Just wondering what size they are without taking my door apart.
If i do decide to change any speakers i will do the whole system. This aint my first rodeo Hoss.

 

[Mark_888]

Just wondering what size they are without taking my door apart.
If i do decide to change any speakers i will do the whole system. This aint my first rodeo Hoss.

There is thread on this forum where a professional installer put in a very high-end competition system (with support from multiple suppliers) that looked like it would cost about $25K retail. He may have listed the old specs, or at least the replacement speakers he used.

 

[JBoogie]

Saw that thread, didn't see where he said what size the removed spkrs were. Just in the planning stages now, wanna know if a HAT L3 will fit in there.

 

[FastDEW1]

I would not recommend replacing them with something besides the OEM ones, because the head unit frequency response is custom equalized to the characteristics/limitations of the exact OEM speakers. Also, they are not standard impedances, so the volume and amplifier load will be different if you replace them with after-market ones.

I have a question - As I understand it, the aftermarket systems are standard on 4 ohms. The home units seem to be 8 ohms.

Why do the factory speakers/amps use different than 4ohms? What is the advantage/disadvantage? Why different than the 4 ohms that aftermarket units use?

Thanks for helping out a guy who knows very little about audio systems

 

[GenesisCaptain]

I have a question - As I understand it, the aftermarket systems are standard on 4 ohms. The home units seem to be 8 ohms.

Why do the factory speakers/amps use different than 4ohms? What is the advantage/disadvantage? Why different than the 4 ohms that aftermarket units use?

Long ago, it was easier to create a reasonable car amp using lower resistance speakers. So, in a nut, that is why cars are 4 ohm and homes kind of stuck with 8 ohm. I have no clue why homes standardized on 8 ohm. Someone else will google that, I am sure.

Aftermarket amps and speakers standardized on 4 ohms and that stuck. Both sides (speakers and amps) need to be consistent or their products fail. This is as much marketing as it is electrical engineering. 4 ohms will produce more sound for a given volt than an 8 ohm speaker, and volts are what drive audio output. Current is the other half of the math-- current is the limiter, so the amplifiers simply have to be able to deliver the amperage. The problem with current is that lots of amperes produce buttloads of heat, and heat is the enemy of electronics.

The advantage of 4 ohms is more power per volt. The disadvantage is more current and thus more heat.

I suspect that factory systems are trending toward common sense-- higher impedance speakers (8 ohm) and lower amperage amplifiers for more stable performance. But, aftermarket stuff is stuck in the marketing world of the 4 ohm standard.

Totally unrelated to the EE stuff above, cars now have sophisticated integrated amps with integrated DSP tuning and crossovers. Long ago, you just had a right channel and a single driver. Now, you have an integrated amp with 1 channel input and 4 - 6 individual drivers per channel. Each speaker has its own particular impedance and frequency response. The factory car amps are tuned to each speakers' behavior. So, if you start swapping out speakers that may have different impertinences, efficiencies, and frequency responses, the sound quality can get sideways in a hurry.

In other words, if you want to replace just one thing, you are better off replacing everything. It is the concept of irreducible complexity. The speakers and amp combination in a modern car is a system of irreducible complexity. They are two tightly coupled, and one cannot be replaced without deprecating the entire system.

 

[FastDEW1]

Interesting. Thank you for such a clear answer!

 

[Mark_888]

Home speakers are usually 8 ohms because not all amplifiers/receivers can handle a 4 ohm load without overheating. Or, even if they can handle 4 ohms, if you run two sets of 8 ohm speakers in parallel (A+B), then the impedance drops to 4 ohms. But if you run two sets of 4 ohm speakers in parallel, you get a 2 ohm load, and the number of amps that can handle that load is very rare. However, very expensive home speakers are often 4 ohms, because those are usually purchased by purists who are not going to running extension speakers (A+B) on the same amplifier.

BTW, the impedance of speakers is not constant, and varies depending on frequency being played (bass, mid, treble, etc). The rated impedance is usually called the "nominal" impedance, which means it doesn't go too much lower than that for the bulk of the frequency response.

As already mentioned, most better OEM car systems are completely customized these days, and frequency response is tuned to the limitations of the amps, speakers, and the listening environment, so they don't have to standardize on particular impedance rating for speakers (a high-end home music system often has a different brand of speakers from the amplifier/receiver, and each listening environment is different).

 

[Ambush]

Here you go:
Front Door: 6 3/4 (other sizes will fit with modification aka brackets)
Rear: sizes vary with modification
Rear deck: 4" with modification (DONT QUOTE ME ON THIS)
Dash: 4" with modification

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[JBoogie]

it looks like there are 2 spkrs in the front door. I'm wondering the size of the smaller one.

 

[Buford T Justice]

As in the little tweeter up by the window?

 

[JBoogie]

nope, down in the door. The tweeter is up in the sail panel but there are 2 spkrs down in the door.

 

[Crusty Old Shellback]

Just to throw a wrench in your OEM impedance, the factory system on a Harley Davidson is 2 ohms.

Not sure of the size but if my memory is correct, one is a woofer and one a mid range.

There was a drawing etc that showed every speaker in the car and type but not sure of the size. I just don't remember where I saw it at.

 

[JBoogie]

Im hoping that the door spkrs are (1) 6.5" and (1) 3". Guess im gonna have to take the door off just to see.

 

[consilius]

 

[Mark_888]

Except that the precise speaker sizes are probably not in metric sizes to the nearest cm. They are probably in inches.

 

[JBoogie]

Converting that over would give me a mid of about 2.5 inches and mid bass of about 6.25. I'm sure that i can prolly get a 3.5 and a 7 in the door if i "really" need to

Sweet!!

 

[consilius]

Except that the precise speaker sizes are probably not in metric sizes to the nearest cm. They are probably in inches.

The info is from Lexicon. Typically Hi-Fi manufacturers use the metric system when building speakers.

 

[GenesisCaptain]

The info is from Lexicon. Typically Hi-Fi manufacturers use the metric system when building speakers.

+1
My old car used metric-sized speakers. It was impossible to find aftermarket speakers that fit well. Not only that, they used highly specialized long-throw, smaller diameter woofers that no one had an aftermarket alternative for.