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<blockquote data-quote="designer2002" data-source="post: 4171614" data-attributes="member: 587589">do you know anythings about electronic circuits ?do you know anythings about class-d power amplifiers ?do you know anythings about&nbsp; ultra class-d power amplifiers ?finally...do you know anythings about class-j power amplifiers ?//content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gifthis amp...working on class-j...on this class...amplifiers have higher efficiency of other class....with good sound guality(s.q).actually this amp...have&nbsp; fantastic&nbsp; design...i talking about&nbsp; smps(do you know that ?//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif)...&amp;amp; i talking about&nbsp; out put&nbsp; amplifier circuit...pdx series of alpine...have 90% of efficiency but&nbsp; this amp...have 95% of efficiency...we tested them...(with volt &amp;amp; ampere meter&nbsp; on terminlas of&nbsp; power &amp;amp; terminlas of out put speaker)..with nearly power out&nbsp; to&nbsp; max rms power (nearly 900-1000w)...after&nbsp; 15-30 min...this amp&nbsp; was&nbsp; very very low temperature...//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif</blockquote>

[QUOTE="designer2002, post: 4171614, member: 587589"] do you know anythings about electronic circuits ? do you know anythings about class-d power amplifiers ? do you know anythings about ultra class-d power amplifiers ? finally...do you know anythings about class-j power amplifiers ?[IMG]//content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif[/IMG] this amp...working on class-j...on this class...amplifiers have higher efficiency of other class....with good sound guality(s.q). actually this amp...have fantastic design...i talking about smps(do you know that ?[IMG]//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif[/IMG])...& i talking about out put amplifier circuit... pdx series of alpine...have 90% of efficiency but this amp...have 95% of efficiency... we tested them...(with volt & ampere meter on terminlas of power & terminlas of out put speaker)..with nearly power out to max rms power (nearly 900-1000w)...after 15-30 min...this amp was very very low temperature...[IMG]//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/IMG] [/QUOTE]

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