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Re: MA Audio MA1800XL
Optimum Vented Box: 4.5 Cu/Ft Round Port Diameter: (3) 4" Square Port Area: 37 Sq/In Port Length: 17" Optimum Sealed Box: 1.75 - 2.5 Cu/Ft these are your options as you can see if your short on space your sub will love a 1.75 to 2.5 sealed box but if you have THE right ported box you will get better bass with less power but at the end of the day that sub will Pump wish i had one good luck hope this helps you info from manufacture cheers bronson
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mono block anps are usually rated at lower impedance.
if your subs are dual 4 ohm , i'd wire all v/cs in parallel for a 1ohm load... unless the amp is all chromed up, than that rating is probably a WLS rating(when lightning strikes)... if the box says anaba group it typically does half of what it advertises.. :-(
need more info,what ohm load are spkrs? are they single voice coil or dual? if dual what ohm dual 2 or dual 4? what amp are you planning to use? stereo amp or mono block? if mono block what make and model? what style box are you using,sealed or ported?
MA Audio's website has the recommended box volume and port size online here. A ported enclosure needs 3.0 CuFt of internal volume and the port should be 48 sq/in and 14.5" in length. A 4X12" rectangular port would give you the recommended 48 sq/in. Using 3/4" MDF, a box 16X18X25 has an internal volume of 3.25 CuFt allowing .25 CuFt for the sub and port displacement.
My honest opinion is that MA Audio is not in the same category as the other subs you mentioned. I buy a lot of electronics on ebay to avoid the giant mark up from stores. I found some MA's and got them for $.01 because no one wants them. However - any sub can preform well if you put the in the right box. I am a technician, not a salesman so you just heard my opinion for an experience standpoint.
answer depends on what kind of Ohm Load your amplifier is capable of as a lowest allowed setting.
ie if you have a 1400W at 4 Ohm amplifier, the connection would need to be different than a 1400W at 2 ohm amplifier.
also, on the speaker what is the rated ohm load per coil since it's a quad coil speaker (should say somewhere on it's box, or in it's manual. I'd assume 4 ohm per coil)
we'll do that math after you get those figures in to me.