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<blockquote data-quote="keep_hope_alive" data-source="post: 8260823" data-attributes="member: 576029">yes, the amp will clip at half gain when you give it more than 2V input.&nbsp; gain is input sensitivity and it&#039;s measured in volts.&nbsp; it&#039;s a setting where you determine what is the maximum input signal you will give the amp. with a 4V headunit you leave the gain at 4V and use the head unit volume (assuming you have a separate amp for the mids/highs and have it&#039;s gain also set at 4V).&nbsp; some people don&#039;t like this method because it is too safe and means you won&#039;t get rated power out of the amp unless you have songs with very strong bass lines.&nbsp; they will risk damage to the equipment in order to get as much bass as possible.&nbsp; the safer way to approach bass is to have more on tap than you need/want so that the equipment is always operated at a level comfortable for the equipment.If you&#039;re running speakers off the head unit also then the problem changes because while the RCA output may be clean to vol 35 the speaker output is not.what box do you have the sub in?&nbsp; specs on the box?</blockquote>

[QUOTE="keep_hope_alive, post: 8260823, member: 576029"] yes, the amp will clip at half gain when you give it more than 2V input. gain is input sensitivity and it's measured in volts. it's a setting where you determine what is the maximum input signal you will give the amp. with a 4V headunit you leave the gain at 4V and use the head unit volume (assuming you have a separate amp for the mids/highs and have it's gain also set at 4V). some people don't like this method because it is too safe and means you won't get rated power out of the amp unless you have songs with very strong bass lines. they will risk damage to the equipment in order to get as much bass as possible. the safer way to approach bass is to have more on tap than you need/want so that the equipment is always operated at a level comfortable for the equipment. If you're running speakers off the head unit also then the problem changes because while the RCA output may be clean to vol 35 the speaker output is not. what box do you have the sub in? specs on the box? [/QUOTE]

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