There are five Digital Reference Zapco amplifiers. There is a DC1000.4 on the rear speakers and half of a DC1000.4 running the front speakers. The other half of the DC1000.4 is bridged to one of the three tower speakers while there is another DC1000.4 bridged to the other two tower speakers. On the two 12's there is a DC1100.1 on each. Every speaker in the boat runs at 4ohm to help with heat and power consumption. The interior components are getting 150 watts each, the towers are bridged at 500 watts each and the subs are getting 820 watts each. The amps are layed out one on top of the other with lit plexi in-between. the component crossovers are at the top of the rack. The tower... there are 2 PRO 80's and 1 PRO 485 painted red. The bar that holds the speakers was machined out of aluminum and anodized clear(for corrsion). Two X's were milled in the bottom to match the boat. The mounts on the bar were made for the newer X-80 towers with the speaker mounts, but. The boat came with a 95amp alternator for each motor. The customer's request was for the longest possible playing time with the motors not running. So we installed 4 Stinger SPV70 batteries (I ran out of 3 hour blue tops). Three of the batteries are for the system and one is for the boat. The hang up with using such a big battery system is that when they run below 10 volts, they require alot of current to charge back up. After going back and forth with Wrangler Northwest, we came up with a solution. The two factory alternators were replaced with a 160amp Balmar unit. In order to insure that there would be no charging issues, we would have to get the most current to the batteries as possible. The two charging systems were combined with "POWER-GATE" Isolators for 320 amps of charging current. Basically, they are like big smart diodes. The system works perfectly. All of the charging/ground cables were upgraded to 0awg. Custom battery trays were machined for each side of the boat.
1 comment:
Well written article.
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