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Help with Mrk/Driver Choice with Cow.

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Tekasis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tekasis Quote  Post ReplyReply Direct Link To This Post Posted: 23 November 2009 at 8:58pm
Originally posted by Saul Saul wrote:

put the 1800s in shortman and compare to s118 with 1850, and you'll see what i'm saying. 
 
I agree 100% there!
 
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Saul View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Saul Quote  Post ReplyReply Direct Link To This Post Posted: 23 November 2009 at 9:16pm
@ autograff, back on subject, 

just build one of each if your torn over which one to go for. I can provide some drivers to try in each.. 

i built a chipboard cow a couple of months back - i liked what i heard - but it wasnt braced so it certainly didnt tell the full story - its now been burnt  - i had the intention of building more in ply, but still havent got round to it....... 




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darkmatter View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote darkmatter Quote  Post ReplyReply Direct Link To This Post Posted: 23 November 2009 at 10:10pm
How much are turbomax compared to Beyma 18SW1600nd (£325 each)? They look like they could work.

18sw1600nd in Cow mk2, 89V input, modelled in 0.5pi (approximates 1000w per driver into 4 drivers, assuming 4 drivers is a 2 ohm load):



Displacement looks similar to the PD1850. They have a lower xmax than both PD and turbomax though, so may well be xmax limited to 80-85V per driver in this design, no idea to be honest as xdam is 60mm pk-pk...

Shame there won't be many about to test.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Autograff Quote  Post ReplyReply Direct Link To This Post Posted: 24 November 2009 at 4:34pm
I reckon prototypes are the way then , anyone got an 1850 and 1800 near sheffield?
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levyte357 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 25 November 2009 at 3:16pm
Originally posted by Autograff Autograff wrote:

I reckon prototypes are the way then , anyone got an 1850 and 1800 near sheffield?


Watch Tek shrug his shoulders, and say dunno, even though he can barely close his front door, because his gaffe is so rammed with 18" drivers.. LOL
"Who am I? I'm the guy who does his job.. You must be the other guy".
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mykey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 26 November 2009 at 3:29am
Originally posted by darkmatter darkmatter wrote:

How much are turbomax compared to Beyma 18SW1600nd (£325 each)? They look like they could work.

18sw1600nd in Cow mk2, 89V input, modelled in 0.5pi (approximates 1000w per driver into 4 drivers, assuming 4 drivers is a 2 ohm load):



Displacement looks similar to the PD1850. They have a lower xmax than both PD and turbomax though, so may well be xmax limited to 80-85V per driver in this design, no idea to be honest as xdam is 60mm pk-pk...

Shame there won't be many about to test.
I'll try in a few days, pretty awesome speaker the Helicex
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levyte357 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 27 November 2009 at 2:24pm
Originally posted by darkmatter darkmatter wrote:

How much are turbomax compared to Beyma 18SW1600nd (£325 each)? They look like they could work.


Call me cheap, but there's no way I'd be spending £300 on a driver when,

New Turbomax   1000     :   approx £220 (Collection in person, 2x or more)
New V18-1000                :   approx £210
New PD1850                   :   approx £260
New Turbomax 1500       :   approx £280 (Collection in person, 2x or more)


Edited by levyte357 - 27 November 2009 at 2:25pm
"Who am I? I'm the guy who does his job.. You must be the other guy".
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darkmatter View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote darkmatter Quote  Post ReplyReply Direct Link To This Post Posted: 27 November 2009 at 4:00pm
Yeah true mate, and compared to the cab weight the neo saving is minimal. Was just thrown in there as a comparison as I reckon I'd rather buy the Beymas than the tmax 1800i - this is if I was living in some dream land where I actually had some cash haha ;)

I know Roy's a pioneer with the beastly 18"s but I really respect Beyma's engineering and I've been impressed with the drivers of theirs that I've heard.

Mikey you have some helicex lying around? Nice, be interested to know whether they work in a scoop :)


Edited by darkmatter - 27 November 2009 at 4:03pm
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mykey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 28 November 2009 at 12:23am
yes darkmatter, it's something else

I did a demo yesterday with my C4-S up against 2 brand new Peavey VR218's.......Peaveys gave up long before the C4

the guy is now going to purchase 4 x C4-s and use the Peaveys for the band onlyEmbarrassed

and what did this guy pay for the Peaveys??????? $4000 each ShockedShockedShockedShocked some of the distributors here want to be careful, because that is pure robbery, and I don't know how they can sleep at night

I checked on the web and found the VR218's for around $1100, and even that's to much I think


Edited by mykey - 28 November 2009 at 12:29am
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mykey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 28 November 2009 at 1:40am
Originally posted by darkmatter darkmatter wrote:

Yeah true mate, and compared to the cab weight the neo saving is minimal. Was just thrown in there as a comparison as I reckon I'd rather buy the Beymas than the           tmax 1800i - this is if I was living in some dream land where I actually had some cash haha ;)

I know Roy's a pioneer with the beastly 18"s but I really respect Beyma's engineering and I've been impressed with the drivers of theirs that I've heard.

Mikey you have some helicex lying around? Nice, be interested to know whether they work in a scoop :)
+1, I can't trust drivers that sound like a pimped up motor
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