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Message: <blockquote data-quote="helotaxi" data-source="post: 1598050" data-attributes="member: 550915">Just to help yourself out and have to spend even more money down the road to save a couple bucks right now, either get a good butt splice instead of the Al block to connect the two pieces of wire or replace the wire with one continuous piece.  If you go the splice route, crimp the connector and then once ou have a good mechanical connection, solder the connection as well.  Then shrink wrap the whole area (twice for added protection), don't use electrical tape as it will break down and get gummy.  Aluminum corrodes very readily and the Al oxide formed by the corrosion is non-conductive.  The increase in resistance of the junction will cause a voltage drop and that drop will increase with an increase in current consumption.  Dropping voltage to an amp with minimal protection circuits (the category into which most budget amps fall) will cause an overcurrent condition in the powersupply of the amp.  As the voltage drops, the power supply attempt to produce the same amount of power but requires more current to do so with the decrease in voltage.  Because the resistive losses of the bad wiring increase with an increase in current, as the current draw continues to increase, the voltage drops further and the amp attempts to draw even more current.  As you can see this is quite the self destructive cycle.  Good wiring practices: solid connections, quality terminals properly used, heat shrink instead of electrical tape, etc... will all help keep your amps alive and kicking.Once the mechanics of the install are taken care of, the tuning portion of the install is next.  Clipping, both from the amp and the HU are component killers.  Clipping an amp or running an amp at full tilt while feeding it a clipped signal can exceed the designed duty cycle of the output transistors and cause them to build up more heat than they were designed to be able to shed.  Heat is the enemy of electronic components.  As heat increases, so does resistance and then more heat.  Eventually the heat gets to be more than the magic smoke inside can bear and it bursts forth from the output deveices and they output no more.  For this reason it is important to set gains correctly.  Ideally you need an O-scope or a clipping detection circuit to set gains the right way.  You can do it by ear, but that will give you merely a rough wag and with subs it's a REALLY rough wag.  Clipping will begin before you can hear it.</blockquote>

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