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Car Audio Equipment
Amplifiers
Amps that does .5 ohms
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<blockquote data-quote="BnGRacing" data-source="post: 7471393" data-attributes="member: 557400"><p>Let's pretend that the MMATS amps you speak of are pretty good. Will they last as long as long running .5ohm as they would 2ohm? No. Will they produce more distortion at .5ohm than 2ohm? Yes. Will they be noisy? Most D-class sub amps are very. Are the crossovers &amp; DSP contained in HU's any good? Hardly.</p><p></p><p>The JL HD line does not have an amp that is .5ohm stable nor capable of 2kW. In addition, they're not exactly within the budget of the OP now are they? (under $300)</p><p></p><p>Since that line of amplifiers are not .5ohm stable, my statement is still valid. I've never come across a .5ohm stable amp that sounded any good, had good processing, or was reliable. In 10 years time you won't see too many of these things selling in the used market like you normally see with old school amps. Running at those kinds of current levels put an immense strain on the amplifier's power supply as few take the steps necessary to supply it with stable voltage and they suffocate themselves. And playing music at those low impedances is dangerous as a speaker's impedance can 1/2 itself. So while those big power D-Class SPL amps may warm up a 1/2 ohm resistor nicely, the game changes when you hook it up to a speaker.</p><p></p><p>For SPL burps &amp; whatnot, those amps are fine. For everything else, there are better options...like those JL HD's you mentioned.</p><p></p><p>But 2kW for $300 new? That amp, without question, will be a POS.</p></blockquote><p></p>
[QUOTE="BnGRacing, post: 7471393, member: 557400"] Let's pretend that the MMATS amps you speak of are pretty good. Will they last as long as long running .5ohm as they would 2ohm? No. Will they produce more distortion at .5ohm than 2ohm? Yes. Will they be noisy? Most D-class sub amps are very. Are the crossovers & DSP contained in HU's any good? Hardly. The JL HD line does not have an amp that is .5ohm stable nor capable of 2kW. In addition, they're not exactly within the budget of the OP now are they? (under $300) Since that line of amplifiers are not .5ohm stable, my statement is still valid. I've never come across a .5ohm stable amp that sounded any good, had good processing, or was reliable. In 10 years time you won't see too many of these things selling in the used market like you normally see with old school amps. Running at those kinds of current levels put an immense strain on the amplifier's power supply as few take the steps necessary to supply it with stable voltage and they suffocate themselves. And playing music at those low impedances is dangerous as a speaker's impedance can 1/2 itself. So while those big power D-Class SPL amps may warm up a 1/2 ohm resistor nicely, the game changes when you hook it up to a speaker. For SPL burps & whatnot, those amps are fine. For everything else, there are better options...like those JL HD's you mentioned. But 2kW for $300 new? That amp, without question, will be a POS. [/QUOTE]
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Amps that does .5 ohms
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