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<blockquote data-quote="eFertLIS" data-source="post: 895276" data-attributes="member: 554312">I have a Sony XM-3001SXD Class D amp running at 1 ohm.&nbsp; I dug up an old issue of Auto Sound and Security and it tested as following -&quot;We adjusted the input voltage to 6 volts (max the amp is rated to handle) then added 5 db overlap to account for the average levels of music.&nbsp; Here&#039;s what we measured playing tracks, not test tones -Rated/Measured4 Ohms - 300/462.252 Ohms - 600/838.861 Ohms - 1000/ UNTESTED - FILL IN THE BLANK FOR ME!83.7% Efficiency&quot;So I am trying to see what voltage I should shoot at for my 1 ohm set up.1000 - 31.621200 - 34.641400 - 37.411600 - 401800 - 42.42I always assumed that the amp is pushing about 1200 watts into 1 ohm but the tests suggest the possibility of more power.I have ran this amp to a 12&quot; HCCA 12D and now and Orion H2 12.2 and personally hate Sony but this amp has treated me well over the years.&nbsp; What do you think?</blockquote>

[QUOTE="eFertLIS, post: 895276, member: 554312"] I have a Sony XM-3001SXD Class D amp running at 1 ohm. I dug up an old issue of Auto Sound and Security and it tested as following - "We adjusted the input voltage to 6 volts (max the amp is rated to handle) then added 5 db overlap to account for the average levels of music. Here's what we measured playing tracks, not test tones - Rated/Measured 4 Ohms - 300/462.25 2 Ohms - 600/838.86 1 Ohms - 1000/ UNTESTED - FILL IN THE BLANK FOR ME! 83.7% Efficiency" So I am trying to see what voltage I should shoot at for my 1 ohm set up. 1000 - 31.62 1200 - 34.64 1400 - 37.41 1600 - 40 1800 - 42.42 I always assumed that the amp is pushing about 1200 watts into 1 ohm but the tests suggest the possibility of more power. I have ran this amp to a 12" HCCA 12D and now and Orion H2 12.2 and personally hate Sony but this amp has treated me well over the years. What do you think? [/QUOTE]

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