TheAudiophile

Spotify, even non-premium, tends to sound better than Youtube.

I think its native support that is meant. Z87 should be able to do everything that Z97 does as long as the bios allows it.

There is some truth to the single-driver community's love of no crossover parts in the signal path. However, the idea of one driver covering the entire frequency spectrum is one that is rife with problems.
 
The pieces of knowledge that you can take with you from them are as follows: Yes, do remove all you can from the path between the speaker driver and amplifier. Secondly, point sources (single driver, concentric drivers) are an excellent way of maintaining phase coherence, but they also come with their own set of compromises. In total, use active crossovers on a multi-way system, and you can acheive the ideal of no components between the driver and amplifier with none of the drawbacks.
 
However, I do find that most of the drivers the fullrange community likes make some of the BEST midrange drivers in a 3+ way system. Really, all serious audio systems should start with active crossovers and at least a 3-way design. Good sound can of course be achieved with a 2-way system, but 3-way is where a good stereo starts IMO.

There is some truth to the single-driver community's love of no crossover parts in the signal path. However, the idea of one driver covering the entire frequency spectrum is one that is rife with problems.
 
The pieces of knowledge that you can take with you from them are as follows: Yes, do remove all you can from the path between the speaker driver and amplifier. Secondly, point sources (single driver, concentric drivers) are an excellent way of maintaining phase coherence, but they also come with their own set of compromises. In total, use active crossovers on a multi-way system, and you can acheive the ideal of no components between the driver and amplifier with none of the drawbacks.
 
However, I do find that most of the drivers the fullrange community likes make some of the BEST midrange drivers in a 3+ way system. Really, all serious audio systems should start with active crossovers and at least a 3-way design. Good sound can of course be achieved with a 2-way system, but 3-way is where a good stereo starts IMO.

The main problem in making a midrange speaker driver cover the highs is intermodulation distortion. The larger cone movements from the lower frequencies will affect the production of higher frequencies unless the driver has a very linear BL curve (not found on all but the most advanced motor designs). If the driver is also fed bass frequencies, the problem becomes exponential. 
 
As well, most full-range drivers will have poor dispersion/off-axis performance in the treble region. This is a result of the cone diameter. Treble drivers need to be small for good dispersion. This may seem like the issue is remedied by simply always keeping the driver pointed at your ear, but speakers with poor off-axis response do not image well. 

I went on a full-range excursion once. I had a pair of Fostex FE-127s in ported boxes, and FE-166's in back-loaded horns. Both sounded great in the midrange, but were so weak elsewhere that I quickly got disappointed and sold them. I took the good things I learned from the experience with me to better speaker setups. The FE-127s truly did sound lovely in the midrange, though.
 
EDIT: I forgot I also bought a pair of Zigmahornets with Merrill drivers, too. Those were pretty neat and really started to perform the more power you fed them (to a point). Of course, those were sold as well.
 
Maybe the most fun part about small full-range drivers is being impressed by the sound that comes out of them for their size and primitiveness. Ultimately they are inferior to multi-way, however.

Spotify, even non-premium, tends to sound better than Youtube.

Agreed.


Subs vibrate. As SSL said they handle lows but they do it at various intensities even at the same volume setting in the same piece of music so no matter what you do they will be vibrating from a little to a lot. Also I find it inconceivable that vibrating a little faster or slower would harm a device designed to do nothing but vibrate.

What you're asking for is a recipe for seriously degraded sound quality.
 
Also, it would only be possible with a custom app on the phone. There's nothing that I know of that will allow you to do that currently. Technically it's possible to route the signals like that, but you would need to be a software designer to make it happen.

Okay nope nope nope total made up bullshit. Where did you even get this idea from?! I swear, the shit I run into on the internet sometimes...
Sending a small amount of power to any speaker driver, small or large (I don't care if it's 6 feet in diameter), doesn't do ANYTHING like you describe. Please do not spread this incorrect information any longer.
 
However, driving too small of an amplifier with too high of an input level (such that the output signal is clipping and distorted) WILL destroy speaker drivers, even if the driver is rated for more power than the amplifier can put out.

That only happens when you post a topic people want to reply to

That only happens when you post a topic people want to reply to

Okay nope nope nope total made up bullshit. Where did you even get this idea from?! I swear, the shit I run into on the internet sometimes...
Sending a small amount of power to any speaker driver, small or large (I don't care if it's 6 feet in diameter), doesn't do ANYTHING like you describe. Please do not spread this incorrect information any longer.
 
However, driving too small of an amplifier with too high of an input level (such that the output signal is clipping and distorted) WILL destroy speaker drivers, even if the driver is rated for more power than the amplifier can put out.