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<blockquote data-quote="keep_hope_alive" data-source="post: 8077610" data-attributes="member: 576029">yes, you need a solid 14.4VDC supply to make rated power at 14.4VDC.&nbsp; this is common for most amplifiers.&nbsp; you may notice power is almost halved at 12VDC input.&nbsp; this is because power is related to the square of voltage.&nbsp; P=V^2/Ryou cannot wire a D2 sub for 2 ohm mono.&nbsp; you can wire it for 1 ohm (parallel) or 4 ohm (series).&nbsp; you could connect just one coil, but then you halve power handling since the power handling is based on both coils being ran.&nbsp; i typed this but now realize you were adding a sub to get to 2 ohm.using a DMM and test tones is fine for worst case protection but most songs have bass notes that are -3 or -6dB down so there isn&#039;t clipping when music is laid on top of the bass line.&nbsp; each album has bass mixed at different levels, though i&#039;ve seen some at -0dB.</blockquote>

[QUOTE="keep_hope_alive, post: 8077610, member: 576029"] yes, you need a solid 14.4VDC supply to make rated power at 14.4VDC. this is common for most amplifiers. you may notice power is almost halved at 12VDC input. this is because power is related to the square of voltage. P=V^2/R [I]you cannot wire a D2 sub for 2 ohm mono. you can wire it for 1 ohm (parallel) or 4 ohm (series). you could connect just one coil, but then you halve power handling since the power handling is based on both coils being ran.[/I] i typed this but now realize you were adding a sub to get to 2 ohm. using a DMM and test tones is fine for worst case protection but most songs have bass notes that are -3 or -6dB down so there isn't clipping when music is laid on top of the bass line. each album has bass mixed at different levels, though i've seen some at -0dB. [/QUOTE]

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