alpine f#1 status
03-21-2006, 11:05 AM
#61
1000 Watt CAFz'r
Join Date: Aug 2004
Posts: 1,267
Simply by having the choice of 6,12,18,24,and??? gives you endless flexability and phase for tweeter etc,as well as para eq for every speaker again from the drivers seat.I would love a 900,or I will give you $500.00 for your crappy used one!
03-21-2006, 12:51 PM
#62
50 Watt CAFz'r
Join Date: Nov 2005
Posts: 233
Originally Posted by defro13
let me ask you this guys, those who arent using a pxah900(we will narrow it down to the 1 piece) do you think that if you had the available amplifier channels that your stereo could sound better by adding a pxah900
Not too sure. As was mentioned, it does offer all kinds of flexibility, but in my particular setup, I cannot say it would or would not. In a lot of cases, I have found that "the car" tends to be the issue. In these same cases, if people actually put a lot of time and effort into the acoustic realm of the car, they would be dealing with more than half of the issues that the pxah900 is having to do for them in the electrical realm. Understandably this is not always the case in every car, but i think you know what i mean. Sometimes a 12db slope is better suited than a 24db slope. Sometimes time alignment causes other issues in the speaker axis alignment. You know.
I agree that if you took the bulk of the systems that were out there, that yes it would help simply because it would help bridge the gap where people fall short in going to the fianl degree of system design, prep, treatment, and acoustic research in the car.
And it sure beats spending 3 times as much just on the acoustic treatment alone.
03-21-2006, 01:39 PM
#63
500 Watt CAFz'r
Join Date: Mar 2005
Posts: 884
Originally Posted by sawnicxs
Not too sure. As was mentioned, it does offer all kinds of flexibility, but in my particular setup, I cannot say it would or would not. In a lot of cases, I have found that "the car" tends to be the issue. In these same cases, if people actually put a lot of time and effort into the acoustic realm of the car, they would be dealing with more than half of the issues that the pxah900 is having to do for them in the electrical realm. Understandably this is not always the case in every car, but i think you know what i mean. Sometimes a 12db slope is better suited than a 24db slope. Sometimes time alignment causes other issues in the speaker axis alignment. You know.
I agree that if you took the bulk of the systems that were out there, that yes it would help simply because it would help bridge the gap where people fall short in going to the fianl degree of system design, prep, treatment, and acoustic research in the car.
And it sure beats spending 3 times as much just on the acoustic treatment alone.
I agree that if you took the bulk of the systems that were out there, that yes it would help simply because it would help bridge the gap where people fall short in going to the fianl degree of system design, prep, treatment, and acoustic research in the car.
And it sure beats spending 3 times as much just on the acoustic treatment alone.
^ I agree........ It is a timely process to do it right. But the end result usually surpasses any state of the art DSP could do.
I just don't see why anyone would spend $3-5K on a high-end head unit...... then use the DSP to make the line signal non linear... so the speakers sounds more linear.(other then the x-over/delays options) not to mention what it does to the dynamic performance. But I guess it is a quick fix for sure.............
Last edited by SweetnLow91SC; 03-21-2006 at 02:03 PM.
03-21-2006, 02:39 PM
#64
Administrator
Join Date: Feb 2006
Posts: 16,855
As already stated by others, I'm not sure if it would or not.
My car is all active and uses a PXA-H700 right now. Aside from having 'better parts' inside the H900, both processors do basically the same thing: crossover, EQ, time alignment.
So I'm not sure what improvement simply pulling one processor for the other would have if both are set the same way.
Maybe this is where my chirping comes in? The 700/701 retails for something like $1000-1200 right? It seems like a pretty big leap to the H900...
My car is all active and uses a PXA-H700 right now. Aside from having 'better parts' inside the H900, both processors do basically the same thing: crossover, EQ, time alignment.
So I'm not sure what improvement simply pulling one processor for the other would have if both are set the same way.
Maybe this is where my chirping comes in? The 700/701 retails for something like $1000-1200 right? It seems like a pretty big leap to the H900...
03-21-2006, 02:44 PM
#65
1000 Watt CAFz'r
Join Date: Aug 2004
Posts: 1,267
How do you like the 700 Paul???Is it user friendly,and do you like the idea of multiple presets?
03-21-2006, 02:55 PM
#66
Administrator
Join Date: Feb 2006
Posts: 16,855
So far I have nothing but praise for the H700. I find it relatively easy to adjust (all menu driven systems are somewhat annoying) and presets are potentially handy. It could use a couple of more preouts but it accomodates my 3way front + sub system just fine. 
03-21-2006, 03:47 PM
#67
Guest
Posts: n/a
so by your logic dukk, all engines have the same parts that make them work, but some just do it better than others and the difference is very noticeable even though they work the same way, would the same logic not be applicable, in say the d/a converter difference between the 700 and the 900, they both do the same job but one does it noticeable better than the other. remember i have done 3 700/01 to 900 swaps and the differences were remarkable in all 3 swaps, and in all 3 the only thing that changed was the processor
03-21-2006, 05:55 PM
#68
Administrator
Join Date: Feb 2006
Posts: 16,855
^ You kind of lost me there. Cam profiles, compression, spark advance curves, displacement all make a difference. It was a bad analogy. How about we liken them to a couple of refrigerators - one a basic side by side, and the other an all stainless steel model with water and ice dispensers and the fancy TV in it. One costs about a grand and the other over 4grand but both keep food similarly cold or frozen, have side by side doors, vegetable crispers, etc. Another bad analogy I am sure you will agree.
And my post was largely a question. I don't know what difference merely swapping the processor would be if the settings were the same on both. I never said there would be no difference - I just was pondering what it may be. For 4 extra grand I would hope the damn thing would drive me home but that's not the point.
I would expect Alpine to make a quality product in the 700/701 so I am surprised it would degrade the sound that much. The sound must be degraded for the H900 to sound remarkably better, no? I don't think I have ever experienced a remarkable difference in sound between pieces of equipment other than when comparing speakers.
Very interesting to say the least.
And my post was largely a question. I don't know what difference merely swapping the processor would be if the settings were the same on both. I never said there would be no difference - I just was pondering what it may be. For 4 extra grand I would hope the damn thing would drive me home but that's not the point.
I would expect Alpine to make a quality product in the 700/701 so I am surprised it would degrade the sound that much. The sound must be degraded for the H900 to sound remarkably better, no?
I don't think I have ever experienced a remarkable difference in sound between pieces of equipment other than when comparing speakers. Very interesting to say the least.
03-21-2006, 09:58 PM
#69
Guest
Posts: n/a
you made my point exactly dukk, some engines are put together better than others and perform better but they both do the same thing, make the car roll down the road, some are built better than others, better parts, cam whatevers, spark gap gererators, whatever. in the end they both make the car move one just does it far better. the 701 doesnt degrade the sound so im wondering why you would say that, the 900 just does a better job in every way compared to it
03-22-2006, 03:13 PM
#70
Administrator
Join Date: Feb 2006
Posts: 16,855
Your words:
A perfect processor would have no 'sound' of it's own. One should ideally be able to run one side direct to an amp and the other side through the processor (flat eq, all pass) to the amp and hear zero difference between the two. Reality is that this is hard to achieve.
What I took from your statement is that you removed a 700/701, replaced it with a 900, did no changes to tuning, and the 900 sounded remarkably better. Well if the 900 is the reference, then the 700/701 sounds worse and thus must be degrading the sound. If you meant that using the 900 allowed more tuning flexibility so ultimately the car sounded better in the end then that is something else entirely.
remember i have done 3 700/01 to 900 swaps and the differences were remarkable in all 3 swaps, and in all 3 the only thing that changed was the processor
What I took from your statement is that you removed a 700/701, replaced it with a 900, did no changes to tuning, and the 900 sounded remarkably better. Well if the 900 is the reference, then the 700/701 sounds worse and thus must be degrading the sound. If you meant that using the 900 allowed more tuning flexibility so ultimately the car sounded better in the end then that is something else entirely.
