2017 Si Factory Sub - How does yours sound?

[josby]

The woofer and tweeter in the two-ways in the rear deck are counted separately for a total of 10 speakers.

There are 6 channels of amplification - front left, center, front right, rear left, rear right, and subwoofer.

10, actually. All speakers have dedicated channels from the amp.

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[zroger73]

10, actually. All speakers have dedicated channels from the amp.

Actually, there are no more than 8 channels of amplification - possibly 6 if the tweeter outputs on the amplifier are internally connected through a capacitor to the same outputs that drive the front door speakers. Each of the two-way speakers (counted as two speakers since it contains a woofer and tweeter) in the rear deck uses one output.

There are indeed 10 channels of amplification and each driver is connected to a dedicated output on the amplifier.

 

[josby]

Actually, there are no more than 8 channels of amplification - possibly 6 if the tweeter outputs on the amplifier are internally connected through a capacitor to the same outputs that drive the front door speakers. Each of the two-way speakers (counted as two speakers since it contains a woofer and tweeter) in the rear deck uses one output.

The rear tweeters are on a separate connector:

The tweeters aren't driven off the same channel as the mids because the mids don't get treble. Unless you think there's a full passive crossover inside the amp for each channel, but given how small it is - and the fact that we know for sure there's a DSP inside it regardless - that seems unlikely.

None of the 10 channels get a full-range signal.

 

[9civic10]

While better than my 15 , overall , the sound system in general is mediocre at best

 

[zroger73]

The rear tweeters are on a separate connector...

Mmm. This crow tastes good - just need a little salt and pepper!

I'm off to correct some posts...

This is a pretty sophisticated system even if it doesn't necessarily sound like it.

I can confirm 10 discreet channels of amplification via the speaker test function that plays a tone from each of the 10 channels individually or altogether.

 

[T_A_H]

So it's it normal for the sound to be distorted when faded all the way to the rear?

Sounds like real player from the 90s

 

[josby]

So it's it normal for the sound to be distorted when faded all the way to the rear?

Do you have the DTS Neural setting enabled by chance? Because if you do, I'm pretty sure that algorithm steers only some sounds to the rear speakers for rear fill, which would sound weird if you were only hearing the rears. Try toggling DTS Neural on and off while listening to just the rears and see if that improves what you're hearing. Just a hunch.

 

[josby]

I can confirm 10 discreet channels of amplification via the speaker test function that plays a tone from each of the 10 channels individually or altogether.

The old throw-a-cap-on-the-tweeter thing has been typical of Honda for so long that I was quite surprised to see true discrete tweeter outputs!

Here are line-level measurements (at four different volume settings) of the sub, front mids, and front tweeters I took, if you're curious about the crossover characteristics:

And here is the center channel (in purple, ignore the green line):

 

[ne0guri]

I actually think the speakers themselves are pretty good. The sub is just very weak. I might just change the rear deck speakers to something with bass emphasis to sort of balance it out.

 

[T_A_H]

Do you have the DTS Neural setting enabled by chance? Because if you do, I'm pretty sure that algorithm steers only some sounds to the rear speakers for rear fill, which would sound weird if you were only hearing the rears. Try toggling DTS Neural on and off while listening to just the rears and see if that improves what you're hearing. Just a hunch.

That was it. Thanks!

 

[zroger73]

The old throw-a-cap-on-the-tweeter thing has been typical of Honda for so long that I was quite surprised to see true discrete tweeter outputs!

Here are line-level measurements (at four different volume settings) of the sub, front mids, and front tweeters I took, if you're curious about the crossover characteristics:

And here is the center channel (in purple, ignore the green line):

Do you recall the volume level of each color for each output on each graph? I don't see any loudness equalization going on, but maybe it isn't effective at the volume levels you tested. My Ridgeline (and many other vehicles I've owned) boosts the bass and treble at low volumes to compensate for the humans ear's lower sensitivity to those frequencies at lower volumes. I noticed my Civic doesn't (seem to) do that.

 

[josby]

Do you recall the volume level of each color for each output on each graph? I don't see any loudness equalization going on, but maybe it isn't effective at the volume levels you tested. My Ridgeline (and many other vehicles I've owned) boosts the bass and treble at low volumes to compensate for the humans ear's lower sensitivity to those frequencies at lower volumes. I noticed my Civic doesn't (seem to) do that.

It was 15, 20, 25 and 30. I concluded the same thing as you - no loudness equalization going on. But, I later made more careful measurements on the mid's signal and found that there is actually a change in bass level occurring. No changes on the treble end, although I did not make the same measurements on the sub or tweeter outputs. But I think such changes to the curve would be applied before the crossover and therefore would have a somewhat visible effect on the mid's signal too, if they were being done.

Here's the post: http://www.civicx.com/threads/audio...e-doesnt-change-with-volume.6814/#post-136910

 

[AsianGuy98]

Would getting an aftermarket sub make a difference?

 

[integra15]

The old throw-a-cap-on-the-tweeter thing has been typical of Honda for so long that I was quite surprised to see true discrete tweeter outputs!

Here are line-level measurements (at four different volume settings) of the sub, front mids, and front tweeters I took, if you're curious about the crossover characteristics:

And here is the center channel (in purple, ignore the green line):

So, if one was going to add a powered sub woofer and was going to use High Level inputs on it (No place to get RCA signal from Display Audio), which speaker signal would you choose? I tried it with both the sub input and rear 6 inch speaker. It sounded worst on the sub signal.

 

[josby]

So, if one was going to add a powered sub woofer and was going to use High Level inputs on it (No place to get RCA signal from Display Audio), which speaker signal would you choose? I tried it with both the sub input and rear 6 inch speaker. It sounded worst on the sub signal.

I would choose the sub signal. But, trust your ears of course - if the other sounded better, do that. If you use the sub signal, make sure the crossover on the powered sub is turned off if possible, or set to the highest frequency possible if not. You don't want it applying any filtering to the signal it's getting since the factory sub signal already has a steep crossover slope on it.

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