Imprint.. again

cups
10+ year member

Junior Member
So I managed to get all 6 positions in the car measured.

This is the result screen:

imprint2.jpg


- It flattens the mid-high sections while fixing dips and peaks in the sub 200hz part.

- The subwoofer blends really well and cannot be localized. I can't really figure out the crossover point by ear anymore.

- Sound stage is pushed up high and front.

- Rear-fill speakers do not pull the image back.

Now this is not quite idiot-proof still. Before you start you have to make sure your gains are set properly and to your taste. Although I can set rear-fill speakers gain higher I chose to set them at around 1/4 before the measurement starts. Setting them higher will not pull the imaging back but will rather give more of the wide "rear-fill" effect that makes it a bit harder to localize the front stage. You won't hear vocals coming from the rear and overpowering the front but it still adds up something and it depends on your taste.

Sub gain has to be a bit low. Alpine probably figured that out after printing the manual and added a separate note stating that sub gain has to be at 1/2.

After you're done you will finally see the bass/treble options on the headunit. You can still change sub-level and balance/fade.

The software is made to be used by anyone. It's very simple but unfortunately lacks some important features:

- Once you do the setup, your results are actually stored on the pc (even if alpine say they're not) in a zip file in the alpine directory. But when you want to take new measurements it won't recall your old measurement but will start a new one. Considering it's a lengthy process and needs to be done in quiet environment there should have been a way for you to "continue" measuring next time.

- I don't know how the software does the calculations internally but there should be a way for you to choose what location you want to re-measure. The wizard-style means you can only choose to re-measure your last location or continue to the next one.

- Location order is rather strange too: front-mid, rear-mid, front-left, rear-right, front-right, rear-left. You have to use a tripod and you most likely will use different heights from front to rear so more fiddling with the tripod.

- When you're in the middle of a measurement and say a car drives by and makes some noise you know the noise even for a few seconds will be added to the measurement average so you decide to stop and repeat. Well, there is no stop button. You'll have to wait for it to finish first and re-measure again.

Anyway, most important is that the result is really worth it. Takes away the harshness from bright tweeters and sound is more enjoyable and smooth without anything over-powering anything else. You will want to listen to all your favorite music collection again so hear what you've been missing before. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 
I noticed you said that once you're done, you will finally see the bass and treble options. I guess my question to you is, when was the last time you adjusted a system using bass and treble controls? I literally can't remember the last time I made any system adjustments using them. I make my adjustments using more specific means such as amp gains, EQ band adjustments, etc. I'm just wondering why in this day and age why anyone would want to make adjustments using antiquated bass/treble controls.

 
I have used this feature on my Eclipse units to make adjustments to go with the type of music that I am listening to. Eclipse gave you this option on top of having the PEQ on some of their HU's. I think it's a nice feature and one that I look forward to using.

 
I noticed you said that once you're done, you will finally see the bass and treble options. I guess my question to you is, when was the last time you adjusted a system using bass and treble controls? I literally can't remember the last time I made any system adjustments using them. I make my adjustments using more specific means such as amp gains, EQ band adjustments, etc. I'm just wondering why in this day and age why anyone would want to make adjustments using antiquated bass/treble controls.
i think because in this situation the imprint technology is doing a far more complex tune than you could attempt to reproduce on your own they are intentially limiting you from being able to tweak it much more. thats why they give you just a limited choice of adjusting treble and bass.

this is just my theory.

 
Even though the imprint is doing all the tuning, your tastes might require more bass or less bass and more treble or less treble. That allows you to still havet that feature.

 
Even though the imprint is doing all the tuning, your tastes might require more bass or less bass and more treble or less treble. That allows you to still havet that feature.
Wouldn't you still want to make your adjustments using the EQ setting even after you've set the system up using the imprint? I would think trying to make an adjustment using a bass or treble control would adjust over too wide of a frequency spectrum. Let's say you wanted to adjust for only the very high end of the spectrum (12K or higher). If you adjust using a treble control, wouldn't you be adjusting ALL of the high end freqs? Same thing for the bottom end. Let's say you only wanted to bump up the subwoofer freqs. You would get a more precise adjustment by either adjusting the EQ, or turning up the sub out level control on the head unit. If you turn up the bass control, wouldn't you also be boosting mid-bass freqs as well?

 
No, and you can't.

If the imprint does 512 bands of eq'ing, I wouldn't wanna mess with that setup.

I'm sure it sets up the b and t at certain levels where they are audible but not too wide or too narrow of a band. Maybe I'm wrong, but it would seem logical that way.

BTW, you still have control over xovers and sub level.

 
Wouldn't you still want to make your adjustments using the EQ setting even after you've set the system up using the imprint? I would think trying to make an adjustment using a bass or treble control would adjust over too wide of a frequency spectrum. Let's say you wanted to adjust for only the very high end of the spectrum (12K or higher). If you adjust using a treble control, wouldn't you be adjusting ALL of the high end freqs? Same thing for the bottom end. Let's say you only wanted to bump up the subwoofer freqs. You would get a more precise adjustment by either adjusting the EQ, or turning up the sub out level control on the head unit. If you turn up the bass control, wouldn't you also be boosting mid-bass freqs as well?
That's why an H701+ imprint would be awesome.

 
if you want to do a bunch of manual tweaking i dont think imprint is for you...
Who wants to do a lot of manual tweeking? Isn't that part of the reason for having the imprint so you don't have to do a lot of manual tweeking? The reason I asked what I did was because I haven't seen controls on a HU that were referred to as "bass and treble" controls since I had my last cassette deck, and that was a couple of decades ago.

 
Some tracks are recorded to have too much bass or treble more than you like. Having an easy way to adjust it while driving is very useful.

I have a 3sixty.2 with enough bands per channel to tweak but I sure don't want to mess with it while I'm driving. And honestly I still can't find something I don't like about it to tweak.

Only thing I now noticed after playing enough tracks is sometimes in some tracks upper bass sounds more at rear seats than front. Could be my sub or sub location but there is an audible difference between the two that can even be annoying to the rear passengers at high volumes. While it sounds perfect for the driver. It's almost as if phase changes from rear to front seats.

Also not sure what's up with the messed up sub eq. Don't know if it has anything to do with the fact that I connect both R and L channels to one mono sub. The imprint software thinks I have both left and right subs at different locations and does measurement for both but in reality I just have one doing that.

Shall I disconnect one side and see if it stereo sums both channels? The headunit has an option for mono sub output but you can't change that if multeq is on. //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 
if you want to do a bunch of manual tweaking i dont think imprint is for you...
Y not? Multi-eq can always be turned off.

Who wants to do a lot of manual tweeking? Isn't that part of the reason for having the imprint so you don't have to do a lot of manual tweeking? The reason I asked what I did was because I haven't seen controls on a HU that were referred to as "bass and treble" controls since I had my last cassette deck, and that was a couple of decades ago.
You'd be surprised, alot of HU's have that type of control still.

 
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