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Come on now. Let's not fall for the Jedi mind trick. Sorry to say, but that speaker comparison review is totally meaningless. There’s not an ounce of validity. No one tested the speakers in a lab. No one installed and listened to all those speakers under identical conditions . Someone...

The UV from direct sunlight will absolutley bleach out the ink over time without using anything else. The blue dye from jeans can also leave a stain that the sun will erase given some time. So there is no need to risk the vinyl with an aggressive solvent. David Earmark Marine

Ya got to listen to Wylie on this power supply issue. You do not want to power an amplifier (any larger than a BTL) off the salon DC panel. Not only is it dangerous but if the existing two amplifiers are wired battery-direct to the engine compartment, as they should be, then sourcing a third amp...

All true. However, if the cockpit has two speakers in the arch and two speakers lower in the coaming then I would prefer to maintain the independent four highpass channels so I can gain the speakers separately to compensate for the positional dis/advantages. Otherwise, the arch speakers can...

Bill, Remove the cloth grills (if applicable) from the cabin speakers. Attempt to blow through the cloth. Generally the cloth is NOT acoustically transparent. You cannot force air through it. Changing this cloth to a normal acoustically transparent speaker cloth will make a gigantic difference...

Class D is an analog switching amplifier and isn't 'digital' in any respect....except for an uninformed manufacturer's marketing depeartment that might use the term. However, Class D is significantly more efficient and is highly recommended. When you tie two 4-ohm speakers in parallel on one...

Ouch! That is one cheesy piece of electronics and you get what you pay for. But in this application it may get you by. First, disconnect the input from the amplifier. You do not need a substitute source. Once the amplifier is 'On' if you have the hum then it is an issue with the amplifier or...

Typically we install a four-sided carriage (front, two sides and bottom) made from furniture grade ply to fill the open cavity. The face of the carriage is laminated and flush with the front of the cavity. We mount an articulating bracket to the face for an LCD/LED TV. Given the typical...

Is that in the four channel mode and rated at 4-ohms or 2-ohms? If that is the 2-ohm rating you may be at 4 X 50 watts. The speakers should be fine at that level if the speakers are in good condition and there are no other contributing factors. Is all EQ flat? 300 watts is a big boy so did you...

Yes, If dividing the preout signal between two identical amplifiers then use RCA 'Y' adapters. But in doing this you should fortify the preout voltage with an EQ or line driver, unless you already have one in the system or a 4-volt HU. That is also going to require a minimum and equivalent of a...

I don't like a Frankenstein mix if it can be avoided. In a small cockpit you will get the best results from using identical woofers, collected and symmetrically positioned if not side by side. An Infinite Baffle and Air Suspension woofer should both sound great and behave similarly at moderate...

I might add this one small note. I would go no farther to one extreme of the cabinet than 75/25 percent. That is already a very elongated enclosure shape. Woofers located at one extreme of an elongated enclosure tend to behave like they are in an undersized enclosure. So go with 75/25 and move...

That is a very good point. If the two enclosures were built mirror image rather than identical with the woofers at one extreme of the cabinet, then you could get both drivers closer into the corners. Every reinforcing plane helps. David Earmark Marine

It looks to me like you are taking the best advantage of what the boat is giving you. David Earmark Marine

I understand that in many cases you have to take what the boat gives you so you may be choosing the leper with the most fingers. It may be less than ideal but the best of all available compromises. If given the option I would always select the mounting position that places the two woofers at...

All resins are micro porous and will eventually wick up moisture if set directly on the sole. Polyester fiberglass resin is okay. Epoxy resin is definitely superior. But for either to last the enclosure execution needs to be perfect with every seam and every staple/nail/screw hole filled and...

ippa2, If you only have one pair of original factory speakers on the cockpit you may not have an external amplifier. If that is the case then you can 'series' another pair of speakers off those channels without running an additional four conductors to the stereo source unit. However, that would...

With a "flat screen" I assumed the OP upgraded to an LCD and an AC supplied TV. However I missed the point that the only link will be the video S coming from the DC source unit. The noise that I described, which is a frequent problem, is when you take the audio output of an AC TV and via RCAs...

Just so that you are prepared for noise... When connecting an AC TV with a stereo audio output that has a common ground to a DC stereo that has isolated input grounds you may pick up a bit of noise when operating some of the boat's power accessories. A basic RCA ground loop isolator in line will...

I was in a Half Price Books store the other day looking for a few vintage titles in a CD or on vinyl. They still had cassettes for sale and they STILL were selling 8-tracks...for 25 cents each...if anyone has a functioning 8-track player. David Earmark Marine