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<blockquote data-quote="dragonrage" data-source="post: 7602023" data-attributes="member: 574321">Gain knobs are not power or volume knobs. They are gain knobs that adjust input sensitivity and are relative to input voltage.Sedona and PowerClass are Class D for subwoofer amplifiers/channels only, otherwise A/B. Phantom are completely Class D and have quite a small footprint. I have not tried any but would like to. I have only heard good things but the Phantom series has not been out long enough for me to take the chance on them. I&#039;d like to hear some more long-term feedback first, personally. I would also like to hear how they do with 8 ohm speakers because Class D amplifiers are not all the same when it comes to load impedances outside of their design parameters (and basically no car audio amps are designed for 8 ohm loads, at least when not bridged). I&#039;m not running 8 ohm midbass drivers but I don&#039;t want to limit myself from doing so. I have run them in the past and very well may do so again in the future.Also, I have no idea how well Steve knows how to clamp an amp.Pasmag liked the P900.4 very much, for what it&#039;s worth. (I don&#039;t think it&#039;s worth THAT much, but I&#039;d say it&#039;s worth a lot more than what Steve said.)Time will tell how they stand up.</blockquote>

[QUOTE="dragonrage, post: 7602023, member: 574321"] Gain knobs are not power or volume knobs. They are gain knobs that adjust input sensitivity and are relative to input voltage. Sedona and PowerClass are Class D for subwoofer amplifiers/channels only, otherwise A/B. Phantom are completely Class D and have quite a small footprint. I have not tried any but would like to. I have only heard good things but the Phantom series has not been out long enough for me to take the chance on them. I'd like to hear some more long-term feedback first, personally. I would also like to hear how they do with 8 ohm speakers because Class D amplifiers are not all the same when it comes to load impedances outside of their design parameters (and basically no car audio amps are designed for 8 ohm loads, at least when not bridged). I'm not running 8 ohm midbass drivers but I don't want to limit myself from doing so. I have run them in the past and very well may do so again in the future. Also, I have no idea how well Steve knows how to clamp an amp. Pasmag liked the P900.4 very much, for what it's worth. (I don't think it's worth THAT much, but I'd say it's worth a lot more than what Steve said.) Time will tell how they stand up. [/QUOTE]

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