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<blockquote data-quote="skogie1" data-source="post: 7357651" data-attributes="member: 633822">I run two amps off a battery for a 2004 Nissan Sentra, a kicker ZX350.4 and an Alpine MRP M-1000.&nbsp; The battery is 7 yrs old and most likely needs replacing regardless of what I choose to do.&nbsp; The kicker amp powers four speakers all rated at 60w rms and the alpine amp powers two kicker compvr 10&#039;s rated at 400w rms each.&nbsp; My lights dim when the volume is waaay up and the bass hits hard.Should I try replacing the current battery and running off that alone, use a capacitor, or wire in a second battery?&nbsp; Pros and cons of each?Also, when my lights dim, am I losing power to the amp or am I just losing power to the car lights.&nbsp; I&#039;m happy to sacrifice a bit of brightness for sound power, but not vice versa!Also, I chose to forgo a power distribution block and just ran the hot leads for the amps both off the + terminal.&nbsp; Is there any reason not to do this?&nbsp; I couldn&#039;t figure out why I would need a distribution block.Thanks in advance to anyone who has a response/opinion.</blockquote>

[QUOTE="skogie1, post: 7357651, member: 633822"] I run two amps off a battery for a 2004 Nissan Sentra, a kicker ZX350.4 and an Alpine MRP M-1000. The battery is 7 yrs old and most likely needs replacing regardless of what I choose to do. The kicker amp powers four speakers all rated at 60w rms and the alpine amp powers two kicker compvr 10's rated at 400w rms each. My lights dim when the volume is waaay up and the bass hits hard. Should I try replacing the current battery and running off that alone, use a capacitor, or wire in a second battery? Pros and cons of each? Also, when my lights dim, am I losing power to the amp or am I just losing power to the car lights. I'm happy to sacrifice a bit of brightness for sound power, but not vice versa! Also, I chose to forgo a power distribution block and just ran the hot leads for the amps both off the + terminal. Is there any reason not to do this? I couldn't figure out why I would need a distribution block. Thanks in advance to anyone who has a response/opinion. [/QUOTE]

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