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Post by stokasz on Dec 6, 2006 14:41:43 GMT -7
I can't seem to make my mind up. I have an Ep2500 on its way, a BFD at my house, a floor grill from Atlanta Supply, plywood and MDF in the garage but no drivers. I could just buy 4 MJ-18s but I keep thinking the new Mach 5 18" prototype drivers might be worth waiting for. Any word when they will be available? Any guesses at the price? Any idea if they will be able to lower the shipping cost? Any opinions on what I should do?
Plus I noticed a price increase recently at Mach 5 even though his prices are still excellent.
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Post by wingman on Dec 6, 2006 16:12:10 GMT -7
4 of the MJ-18
is my vote
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denim
New Member
SoundSolutionsAudio.com
Posts: 15
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Post by denim on Dec 11, 2006 14:33:57 GMT -7
If you are worried about price and in the lower 48 US, Mark of Mach5 and I are working out the details for SoundSolutionsAudio.com to be the US distributor. So that will help with pricing for US customers. As for a timeline on the other 18, Mark is the better resource for that info. But not to spill the beans too much, but there is a very high power SPL car audio 12 prototype in the works.  |
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Post by stokasz on Dec 11, 2006 17:06:42 GMT -7
Just to follow up, I have purchased 4 MJ-18s. I talked to Mark at Mach 5 and this was the best direction to go for now.
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Post by PeterW on Dec 12, 2006 18:00:45 GMT -7
I think that depending on your needs, budget and space restrictions, either driver would be suitable. If you can only use four or less drivers, i suggest waiting for the new 18"drivers, The MJ18's are a great deal, and if you have the space for eight of them it would be super sensitive and awsome. Imagine getting 112db with an 8 watt tube amp!! If you're into listening to even order distortion at 10hz that is  (modify) That would probably change the feeiling of the infrasonic notes as you would hear lots of harmonic distortion above the tonic tone.. |
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Post by chrisbee on Dec 13, 2006 5:06:15 GMT -7
This raises an interesting point (IMO).
Should one aim for enough acreage of driver area to reduce cone movement to a minimum at any reasonable SPL or frequency?
At what point in its excursion range does a typical IB driver start producing potentially audible distortion?
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Post by ThomasW on Dec 13, 2006 8:14:35 GMT -7
At what point in its excursion range does a typical IB driver start producing potentially audible distortion? It's no different than the same driver in a sealed or ported alignment. Once you start hitting higher SPLs and running toward the limits of the Xmax distortion starts to rise. With our usual multiple driver IB designs, we run much cleaner than standard sealed or ported boxes, where typically 1 or 2 drivers are used. |
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Post by stokasz on Dec 13, 2006 10:42:52 GMT -7
I would think that using one driver with greater Xmax, for example 20mm, would produce greater distortion than two drivers with 10mm Xmax. This would be with all else being equal like quality and materials. This would probably be related to the linearity of suspension and spider because as Xmax increases it is harder keep the force imbalance the same. This is an advantage for IBs where using multiple drivers is easier.
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Post by twisterz on Dec 13, 2006 10:58:28 GMT -7
I don't think the point is to use 2 different drivers (20mm XMAX & 10mm XMAX) but to keep the larger xmax driver and only run it to half it's xmax. By using more drivers and higher power amps it allows us to stay far away from distortion and still have deeper and more powerful bass.  |
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Post by cowanaudio on Dec 14, 2006 20:30:11 GMT -7
G'day Thomas, All At what point in its excursion range does a typical IB driver start producing potentially audible distortion? It's no different than the same driver in a sealed or ported alignment. I would argue that at a given excursion that the IB has a clear distortion advantage. There is less current flowing in the VC, less heat, less thermal compression and less modulation of the magnetic field. These all greatly impact the distortion produced by the driver. Cheers William Cowan |
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Post by worldleader1 on Dec 21, 2006 13:40:45 GMT -7
Not to jack this thread, but I have a similar question. I can only fit 2 drivers in a line array setup, and I'm wondering if I should wait for the higher excursion woofers. I live in Kansas so it would be nice to get the sipping cut down a bit.
Should I wait for SSA to stock them or should I go ahead and start building this christmas break?
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Post by crackyflipside on Dec 21, 2006 20:51:16 GMT -7
Not to jack this thread, but I have a similar question. I can only fit 2 drivers in a line array setup, and I'm wondering if I should wait for the higher excursion woofers. I live in Kansas so it would be nice to get the sipping cut down a bit. Should I wait for SSA to stock them or should I go ahead and start building this christmas break? It depends on your room and how loud you want. |
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Post by worldleader1 on Dec 22, 2006 11:09:51 GMT -7
No way!!  I'll wait. |
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Post by toecheese on Dec 24, 2006 0:40:26 GMT -7
Is there info around about the high-excursion drivers? Didn't see anything on Mach5's site.
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Post by ThomasW on Dec 24, 2006 8:58:41 GMT -7
Look in the thread called 'Sold Out'. Mark posted some preliminary T/S data and a couple pics.
Those aren't supposed to be available for quite sometime, so if you're in a hurry you might consider other options.
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