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  1. D

    2 Battery System With a Perko Selector Switch

    With some radios where it impacts the clock and radio stations only and radio is rarely used it doesn't much matter. On other radios it impacts equalization and a host of other critical settings and those are important to not have to re-set every day. So if you want a complete safety shut-off...
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    Need New House Battery-Advice?

    In a warm weather sport and with small displacement motors, I think running all deep cycle is a very good call. If the switching scheme is as simple as a dual battery switch, and both banks or using an equal battery, you can alternate their use each weekend, reduce the number of deeper...
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    on board charger heat

    What charger?
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    Adding a third battery and second switch question...

    I don't see the need for the extra complications. Why not just a single dual battery switch or a dual circuit battery switch plus an ACR/VSR? I would want to service the batteries while underway throughout the day and before any stay at rest. I would want to protect my stators. I would want a...
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    Speaker Upgrade Suggestions

    The Monoprice coaxial is about as entry-level as you can get in a marine speaker. I agree, that with the cost of the Polk dB651 already so low, why reinvent this entry-level choice. The Polk uses a true dome tweeter which has a smooth response. The Monoprice uses a hard plastic W-dome which has...
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    on board charger heat

    Quote: "So the obvious answer is house is infested with gremlins." Then as far as I know Hoyt Axton is the foremost expert on that subject.
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    on board charger heat

    I have a perfectly good Ctek 3-amp charger that recovered a large group 49 that was run down to about 2 volts. It took two days, however, much larger chargers wouldn't even recognize the discharged battery or instantly went into protection. And after cycling the battery several times the charge...
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    on board charger heat

    That's a sealed type charger so it can only dissipate a moderate amount of heat. Very warm can be normal for a limited duration. However, once the batteries are fully charged it should no longer be warm. Move the charger over to a known fully charged car battery and see if the charger still...
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    2nd Battery Quote...tell me what you think...

    I forgot why.
  10. D

    2nd Battery Quote...tell me what you think...

    And that is an interesting point. The factory only invests in supply and ground cables that are just large enough to service the existing electronics. But when the charging system is taken to task with particularly large audio systems, there comes a threshold where upgrading the factory cables...
  11. D

    2nd Battery Quote...tell me what you think...

    An engine ground is crucial in limiting noise. No frame in a boat, just cables, but if there is no engine ground connected to the battery, how does the boat start and charge?
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    What amp ?

    The best amplifier might be a JL Audio XD400/4 (or the M400/4 marine version) bridged into the two-channel mode. Because it will meet its 14.4V power spec even with a 12.6V supply. That would provide precisely 200 watts to each speaker under most all conditions, and exactly equal to the thermal...
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    Wet Sounds WS 420-sq connection question

    You cannot tie the HU RCA outputs together (like with 'Y' adapters) without a buffered circuit. But you can divide/split the outputs to two inputs. So you will use the HU front RCA output only to the single stereo EQ input. You will keep the HU fader to full front or in the middle. The voltage...
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    Phased Stereo Upgrade Opinions

    Once you add external amplification, you no longer should use HU power to drive full-range speakers. Power ratings may seem close enough but the real world power isn't close. And this creates gain inequities that are not solved without compromising the overall system. The Polk Audio DB series is...
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    07-09 230 series speaker layout

    Mounting smaller speakers at the very top of the coaming means good treble and bad lower mids & upper bass. Mounting larger speakers low in the seating consoles means good emphasis on lower mids & upper bass but significantly muted treble. Nothing you place in the bow will impact the cockpit...
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    2nd Battery Quote...tell me what you think...

    jlcj7, The quote you posted might be a total bargain or a total rip-off depending on the quality and execution of the technician doing the work. No one on this forum knows all the particulars. But I see no line item that shocks me. Although the 16 ga. wire raises a question. It may just be an...
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    Another amp wiring question

    A very good point by Tim. And it reminds me that the quickest way to do damage to a HU and introduce noise into the signal path is to unplug/plugin RCA cables while the system is powered up.
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    Another amp wiring question

    Here's one reason to route the main audio supply through the battery switch. When the amplifier trigger is not receiving voltage the amplifier is 'Off' and cannot become a power drain. So that issue is not a problem battery-direct. So let's say you get hit with a storm and a serious wind-driven...
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    ludicrous tower speaker setup...

    Overkill? That's an understatement. Not from a standpoint of too much but rather from the standpoint of turning a $2M boat into Swiss cheese without any real acoustic knowledge. From the intended focal point behind this party boat, the hardtop HLCDs are 15 to 20 feet farther away than the...
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    ludicrous tower speaker setup...

    From a practical side (oops. too late.), how about when you tow the boat? Those forward facing collectors getting gunked up with bugs inside the horn tweeter compression chamber and in the midbass voice coil gap. No way to clean out some of that. Or, how about the air pressure at highway speed...
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