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New Mach 5 Audio UXL info - Page 12

post #331 of 752
KW, I think the problem here is the way you word it. If you admit that you couldn't tell the difference between them, then how can you say which one is better?
post #332 of 752
Quote:
Originally Posted by Erich H View Post

KW, I think the problem here is the way you word it. If you admit that you couldn't tell the difference between them, then how can you say which one is better?

Fine, I will say it one more time just for you...

I have seen pics of the Maelstrom-X and I have seen pics of the PI. It is clearly obviouse from the pictures that the PI sounds better than the Maelstrom-X

post #333 of 752
Quote:
Originally Posted by notnyt View Post

Wouldn't linearity be better defined as bl(x) being .... linear? Either way, declaring one driver 'better' based on 2mm of xmax is what you did. It is absurd no matter how you justify it.

Anyway, enough thread pollution.

Initially I said more linear. As I kept repeating myself, realizing how rediculous it was, I started saying better rather than linear... becoming short tempered falling back on sarcasm. I'm human, I got perturbed, I'm sorry
post #334 of 752
Quote:
Originally Posted by kryptonitewhite View Post

Initially I said more linear. As I kept repeating myself, realizing how rediculous it was, I started saying better rather than linear... becoming short tempered falling back on sarcasm. I'm human, I got perturbed, I'm sorry

<3

I'm still waiting to see how these perform as well as the new 18s that are coming out. It's nice to know what's around, and the current 18" marketplace is not what it was last year =[
post #335 of 752
Quote:
Originally Posted by Steve_Vai_rules View Post

I got my smith and Larsen woofer tester pro so I will be doing small and large param tests and post results.

No klippel but close enough.


Matt

Just wondering what is the easiest way to test a woofer or any driver for that matter?

I will be getting some clones in the future and just want to make sure of the T/S before designing. I have designed from the companies T/S but dont know if I can trust them.
post #336 of 752
Quote:
Originally Posted by chrapladm View Post


Just wondering what is the easiest way to test a woofer or any driver for that matter?

I will be getting some clones in the future and just want to make sure of the T/S before designing. I have designed from the companies T/S but dont know if I can trust them.

Get a basic SL woofer tester.

Depending on who the driver manufacturer is the results will either be fairly close or way off.

Matt
post #337 of 752
Quote:
Originally Posted by Ghani99 View Post

New Mach 5 Audio Pi-18, posted today.

http://www.istonline.ca/mach5_pi_18.html

Fs (Hz) 19.3

Re (Ohms) 3.2

Qes 0.33

Qms 9.29

Qts 0.32

Cms (mm/N) 0.118

Rms (kg/s) 7.49

Mms (grams) 573.5

BL (Tm) 25.93

VAS (L) 229.9

34mm Xmax

Sd (cm^2) 1176.3

Lp (2.83v/1m) 92..9

1200 watts RMS power handling


WinISD driver file for anyone interested.

Attachment 221996

Where is the efficiency parameter?
post #338 of 752
Quote:
Originally Posted by Steve_Vai_rules View Post

Get a basic SL woofer tester.

Depending on who the driver manufacturer is the results will either be fairly close or way off.

Matt

Would the Dayton WT3 be good enough or is there something else?

I am sure there is better out there but this is just a one off type of thing. I might use the thing 3 times and thats it.
post #339 of 752
Quote:
Originally Posted by chrapladm View Post


Would the Dayton WT3 be good enough or is there something else?

I am sure there is better out there but this is just a one off type of thing. I might use the thing 3 times and thats it.

It's no klippel but pretty darn good. Could always sell it to one of the other guys on the forum. Or maybe see if you can borrow one. You're in Australia correct? There's lots of diyers out that way. Maybe someone has a woofer tester. Diyaudio forum has some serious australian diyers amongst its fold. Maybe see if someone can test your drivers for you.

Course depending on the manufacturer it may not be worth it as they may have pretty good tolerances.

Matt
post #340 of 752
Quote:
Originally Posted by Steve_Vai_rules View Post

It's no klippel but pretty darn good. Could always sell it to one of the other guys on the forum. Or maybe see if you can borrow one. You're in Australia correct?

Yes in Australia. I just saw the SL woofertester II but is that all I need also. Both are relatively cheap. I dont mind spending the money for one because most people on this forum are 10 hours plus away from me.

PLUS I will most likely be using 8-10 clone woofers and just want to make sure they are all the same. Then I can do some damage.
post #341 of 752
Quote:
Originally Posted by chrapladm View Post


Yes in Australia. I just saw the SL woofertester II but is that all I need also. Both are relatively cheap. I dont mind spending the money for one because most people on this forum are 10 hours plus away from me.

PLUS I will most likely be using 8-10 clone woofers and just want to make sure they are all the same. Then I can do some damage.

If you're using 8-10 drivers I would get one of the basic ones.

Matt
post #342 of 752
"Where is the efficiency parameter?"

it can be derived from the other data. 89db 1w1m sensitivity. 0.49% efficient.
post #343 of 752
I emailed Mark a couple of days ago about the availability of the Pi-18s and he essentially said that it would be around mid-Feb. So I want to build 4 small (3-4cuft.) sealed subs using 2 FP1400 clones. Are there any alternatives available right now (or by Christmas) for a high excursion 18" for sealed boxes (excluding the LMS)?
post #344 of 752
I would think you need to hurry up and either get some subs on shelves already or you will be waiting until at least Jan. Xmas on the way and things usually get very busy.

There are many many different threads from people wanting different things from subs. SO how low you want to go is I think the biggest one next to budget. If I wanted higher tuned bass I would have just went with a prodriver. But for the money AE is hard to beat.

That being said if Feb. is the outlook on these the 21's are going to take about a year to make. WOW. I dont mind waiting but WOW. Never thought this.
post #345 of 752
Quote:
Originally Posted by chrapladm View Post

I would think you need to hurry up and either get some subs on shelves already or you will be waiting until at least Jan. Xmas on the way and things usually get very busy.

There are many many different threads from people wanting different things from subs. SO how low you want to go is I think the biggest one next to budget. If I wanted higher tuned bass I would have just went with a prodriver. But for the money AE is hard to beat.

That being said if Feb. is the outlook on these the 21's are going to take about a year to make. WOW. I dont mind waiting but WOW. Never thought this.


I never said anything about the 21s. Mark was only referring to my question about ordering 4 Pi-18s.
post #346 of 752
Quote:
Originally Posted by InPhase View Post

I emailed Mark a couple of days ago about the availability of the Pi-18s and he essentially said that it would be around mid-Feb.



Is the mid-Feb estimate for if you were to order now, or for the people who are at the front of the line?
post #347 of 752
Quote:
Originally Posted by notnyt View Post

<3

I'm still waiting to see how these perform as well as the new 18s that are coming out. It's nice to know what's around, and the current 18" marketplace is not what it was last year =[

admit it, you missed me too
post #348 of 752
Quote:
Originally Posted by halo0 View Post

Is the mid-Feb estimate for if you were to order now, or for the people who are at the front of the line?

I only asked about a new order, so I don't know how/if this applies to those that already ordered. What other alternatives are available out there for small sealed subs?
post #349 of 752
Quote:
Originally Posted by InPhase View Post

I only asked about a new order, so I don't know how/if this applies to those that already ordered. What other alternatives are available out there for small sealed subs?

Pick your spl wants, extension and budget and many can suggest you drivers to use.
post #350 of 752
Extension to 5Hz is most important with output good to 10dB below reference (avg. listening volume in ~2000 cuft.). Sealed only. Budget is secondary, but I want to avoid paying for the LMS if I can. I have 2 THTs for ~25Hz and up already. Basically, since I'm in the Mach 5 thread, I'm asking for suggestions for something similar to the Pi-18.
post #351 of 752
Quote:
Originally Posted by gperkins1973 View Post

Your happy to slag off driver like FI, Mach Audio etc.. because it isn't a LMS and yet the PI18 is less than half the price off a LMS. And the Q18 is a 1/3 off the price of a LMS.

I don't think anyone would not be more than 100% happy with a couple off PI18's in their living rooms or even Q18's for that matter.

I don't think when you compare diy subs like FI, dayton and mach audio etc... each and everyone wipes the floor with any commercial subs out there.

I generally agree and wonder at the laziness of folks engaged in these discussions.

The Pi specs tell us claimed X-max and Sd which is all you need to calc displacement.

8 liters. You can then calc output at 10 Hz at X-max = 97.08dB.

The Fi Q specs tell us claimed X-max and Sd.

6.69 liters. 95.65dB. A difference of 1.43dB.

The Q-18 claims 92dB, 1W/1M. The Pi-18 claims 92.9dB 2.83v/1M, but it's a 4 ohm driver, so they're cheating 3dB. It would actually be:

Fi Q-18: 92dB 1W/1M, 6.69L @ X-max, 95.65dB @ 10 Hz @ X-max.
Pi-18: 89.9dB 1W/1M, 8.00L @ X-max, 97.08dB @ 10 Hz @ X-max.

The difference I see is in the drivers compliance, the Pi being the higher compliance driver. After messing with dozens and dozens of drivers, I tend to lean toward the sonic sig of a stiffer suspension driver, but the difference is slight enough that I agree... not many could pick a difference given same alignment, same upstream hardware and same calibration/playback levels.

Bosso
post #352 of 752
+1 bosso
post #353 of 752
ah, this thread went somewhere good...and it was loing overdue (long overdue that what was just said was finally said, be it here in this thread or in any other)
post #354 of 752
Any builds ever going to show up? Where did all the momentum go?
post #355 of 752
Drivers haven't shipped, and the ones that have showed up damaged.
post #356 of 752
fyi (for those that missed it)

The packaging is being beefed up for the next batch shipping in Feb and after.
post #357 of 752
Also I don't think drivers are being shipped out that are completed already until the new packaging is made.
post #358 of 752
Quote:
Originally Posted by Scott Simonian View Post

fyi (for those that missed it)

The packaging is being beefed up for the next batch shipping in Feb and after.

This is great news! Where was this posted that I could have missed it?
post #359 of 752
Quote:
Originally Posted by beastaudio View Post

This is great news! Where was this posted that I could have missed it?

Is the there another forum that Mark posts in or some kind of Mach5 specific forum?
post #360 of 752
No I think Mark is to busy building to post in any forums.
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