Sea Ray 390 Motor Yacht
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We equipped this 390 with just about every electronic amenity. This Sea Ray 390 Motor Yacht represents the second big boat system we’ve created for the owner…the first system was in a 410 Dancer with an equally aggressive cockpit audio system. The owner of this Sea Ray is serious about sound.

EXTERIOR AUDIO AND VIDEO

A KVH Tracvision antenna maintains satellite TV while out on the water and while in motion. A powder-coated aluminum pedestal utilizes a polymer adapter to cancel the one percent forward lean of the radar pad. We used the leveling adapter on this project for cosmetic reasons. The use or absence of the adapter has no effect on the KVH function.

   

We installed a triple LNB Sat TV antenna on the boathouse for service while in the slip.
   
A watertight, non-metallic junction box provides a serviceable link for the ship-to-shore cable and protects radio frequency components like diplexers from the harsh elements. Gel-packed connectors, silicon, dielectric grease and epoxy sealants are just a few of the products that promote reliable exterior applications.
   

We added a 20-inch LCD to the air-conditioned cockpit. The LCD’s power supply is permanently mounted and concealed within the sink console. A power plug and coaxil cable are all that needs connecting to remove and reinstall this LCD.

   

A special infrared target is sunlight resistant. The IR target transmits remote control commands to the interior DVD player and satellite TV receiver.

In the privacy mode the cockpit LCD provides the video soundtrack through its internal speakers. In the party mode the theater sound is supported by the cockpit’s audio system consisting of six full-range speakers, two subwoofers plus a bank of JL Audio amplifiers.
   

A hardwired digital remote control at the helm commands the CD source unit, which is concealed in the cabin

   

A small glove box in the helm console contains an equalizer. The primary benefits of the EQ are: 1.) a six-channel times 7-volt line driver to maximize the dynamic range, and 2.) a 3-way zone control consisting of front (six cockpit speakers), rear (external speakers), plus sub-level (dual cockpit woofers).
   

To each side of the EQ are independent level controls for the bow rail speakers and the transom rail speakers. Collectively this 5-way zone control provides zone by zone minor incremental volume changes, total mute or maximum output.

   

The four overhead factory coaxils in the cockpit were replaced with MB Quart marine integral component speakers.

   

At the helm-seating console we fabricated a white polymer subwoofer grill that also encases the existing courtesy light. Additionally the grill serves to hide the mounting provisions for the concealed subwoofer. Inside the seating console a polyurethane enclosure contains a matching 10-inch subwoofer.

   
The two subwoofers deliver a consistent level of bass output throughout the cockpit without hot or cold areas. It’s important that the subwoofers are loaded into the same type of enclosures (for example: sealed, ported, infinite, etc.) and externally loaded in a similar manner for a uniform phase response. These conditions will greatly dictate the quality of bass.
   

Speakers at the transom are easily removed or reinstalled by quick-release clamshell brackets and quick-disconnect plugs. These transom speakers are effective for projecting out to swimmers or flooding the slip.

   
Also at the transom, a flush-mount digital remote provides full control including Sirius satellite radio.
   
Bow rail speakers feature the same friendly brackets and disconnects. Once the speakers are removed the watertight deck plugs are covered with the attached caps. .
   
A radio frequency remote control delivers full control from the bow deck…ideal for sun bathing or star gazing.
   

INTERIOR AUDIO AND VIDEO

The salon features a factory LCD TV, DVD player and Clarion CD player. We added a flush-mount infrared target between the DVD and CD player.

   

Concealed in the lower cabinet section we fabricated an enclosure to house a 6-disc CD changer, a KVH switch and diagnostic port, ship-to-shore antenna switch, equalizer salon theater sound defeat switch and satellite TV receiver.

The IR target provides remote control of the Sat TV receiver when the receiver is concealed behind closed doors.

While the CD receiver fades between cabin and cockpit for full internal to external zone control, the salon defeat switch allows exclusive listening in the master stateroom.

The equalizer provides front to rear fade for the salon’s four high-pass speakers plus a dedicated sub level control.
   

A radio frequency wireless remote control provides command of the Clarion CD source unit which is central  to the salon theater sound system. This key fob remote control keeps you from getting up and crossing the cabin to exercise volume and other adjustments.
   

At the rear of the salon Canton miniature two-way enclosures were dyed to match the Sea Ray interior vinyl. We also custom built corresponding pads under the Canton speakers to provide a swivel mount.
   

At the front of the salon the factory coaxils were replaced with Boston Acoustics NX Series coaxils. The B.A. speakers are very linear and ideal for interior/enclosed environments. The thick and closed factory grill cloth was replaced with an acoustically-transparent cloth.
   

A pair of black louvered subwoofer vents are used under the couches on opposite sides of the salon.
   

In the master stateroom we removed the TV/DVD combo unit and replaced it with a 20-inch LCD monitor.

Above and to the left of the LCD is a flush-mount infrared target providing control of the salon satellite TV receiver. The IR control system is also linked to a concealed CD receiver and DVD player within the master stateroom.
   

Above  the LCD in a concealed cabinet we built an enclosure to house an Alpine AM/FM/CD receiver and DVD player. The enclosure also contains two speaker control switches. An infrared flood emitter within the cabinet sends the IR commands to both the CD receiver and DVD player while behind a closed door.

The Alpine receiver drives four coaxil speakers within the stateroom. Two speakers are concealed behind the LCD and two are located overhead at the rear of the stateroom. These four speakers support either the audio/video soundtrack or the Alpine’s music selection. The Alpine receiver features an auxiliary input to access the LCDs audio output.
   
The two switches allow the larger rear speakers to receive either the local Alpine player or the wholeboat Clarion player which provides Sirius satellite radio.
   
A wall-mount stereo volume control next to the bed offers a local and independent adjustment of the Clarion from the stateroom.
   
The Boston Acoustics grills were dyed to better fit the stateroom surroundings.
   
In the forward stateroom we maintained the original TV/DVD combo.
   

We installed a flush-mount infrared target for control of the satellite TV receiver.

On a large project like this Sea Ray 390 Motor Yacht much of the equipment and infrastructure isn’t visible. For example, the amplifier racks, the wire routing and organization, the infrared control system, the RF distribution, the digital modulator and much more are invisible. Intentionally we conceal as much as possible. Our goal is to achieve an appearance that is plausibly factory or better. But when you turn the system on you’ll immediately recognize that this isn’t factory.
 
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