Variety Of Sources
Marine Certified: The Dual MGH20 marine receiver is
specifically designed and built to last in harsh marine environments.
- IPX6 Waterproof: The marine receiver is designed to
meet the IPX 6 waterproof standards. The receiver will not fail or allow
water seepage when exposed to heavy splashing or rain.
- Conformal Coating: A transparent protective film is
applied to surfaces of all interior printed circuit boards. This additional
layer of defense guards against dust, condensation, and corrosion; ensuring
maximum longevity in demanding marine installations.
- UV Resistant Construction: The faceplate and other
exposed elements of the receiver are carefully injection-molded using
high-temperature ultra-violet resistant resins, preventing them from
breaking down in the sun and give you peace of mind to enjoy your music on
2-Line Positive-Type Display: The vibrant positive-type,
2-Line LCD provides enhanced visibility under the toughest boating environments.
High-contrast black characters on a white background ensure readability in any
situation; from total darkness to direct sunlight. The display brightness can be
set to High, Medium, or Low.
Gauge Hole Installation: The Dual MGH20 is designed to
perfectly fit in your boat's console gauge opening or requires a round cutout in
the bulkhead for inserting the chassis. The integrated protective gasket,
supplied U-bracket, and included hardware secure the unit in place against the
mounting surface. Receiver dimensions:
- Overall: 4.075" (diameter) x 4.0625" (depth)
- Face-Plate: 4.075" (diameter) x 0.8125" (depth)
- Chassis Cutout: 3.015" (diameter) x 3.125" (depth)
Note: The receiver is round and does not include a mounting
sleeve or ISO-mount screw holes to accommodate standard automotive
Zero Current Draw: This receiver has a zero current draw, with memory
backup to save your boat's battery while still backing up your presets and
Remote Control: The Dual marine receiver comes supplied with
an 17-button IR wireless remote control which provides complete control of the
Dual digital media receiver.
Variety Of Sources
USB Input: The Dual marine receiver is equipped with a
rear-panel USB (type-A) which enables connection of a portable USB mass-storage
class (MSC) device; such as select Android smartphones (Froyo/Gingerbread OS
only), portable digital audio players, or USB thumbdrives. The head unit
supports playback of MP3/WMA music files stored on a compatible USB mass
storage device. The unit's USB port will also charge (max. 0.5A) your USB
devices during connection.
iPod/iPhone Control: The Dual marine receiver's USB port
allows you to connect your iPod/iPhone via the Dock- or Lightning-to-USB cable
that comes with your iPod/iPhone (not included with the head unit). This USB
1-Wire for iPod/iPhone connection provides audio playback (for both stored music
& music apps), metadata display, control, and charging of select iPod/iPhones
through the Dual digital media receiver.
- Bypass iPod DAC: The USB connection allows your iPod/iPhone's
stored music to be loaded instantly to the head unit and sound quality to be
maximized through the head unit's 1-bit D/A converter (bypassing iPod/iPhone
- Music Navigation: You can choose to control the iPod/iPhone
from the head unit or from your iPod/iPhone's clickwheel or touchscreen. The
head unit allows you to browse your iPod/iPhone's stored music by Artist,
Album, Song, Playlist, Podcast, or Audiobook (music content listed
alphabetically). The unit also provides Fast Forward/Reverse, Previous/Next
Track, Repeat/Random, and Intro Scan for your connected iPod/iPhone. In
addition, music apps can be accessed directly from your iPhone's (iOS 6.0+)
- Information Display: The head unit will display your
iPod/iPhone's music file information; including Track #, Elapsed playing
time, Song title, Artist name, and Album title.
- Charging: While connected and the ignition switch is
set to ACC or ON, the head unit's USB connection will power and charge (0.5A
max) your iPod/iPhone. If your iPod/iPhone has no initial battery charge,
then this unit will not recognize it.
Pandora App: The
Pandora App (free) lets you play music from the
Pandora music service
through the Dual MGH20 using your connected Apple iPhone, via the Dock- or
Lightning-to-USB cable supplied with your iPhone. The MGH20 provides control
over the Pandora music service and displays Artist, Album, and Song information.
Your iPhone will need an active Data Plan account with connection to the
Internet via 3G, EDGE, or WiFi. You will also need a Pandora music service
- Station List: You can select Pandora stations from your
Station List by date or alphabetically (A-Z).
- Shuffle: Shuffle allows you to listen to songs played
on one or more Pandora stations in your Station List randomly. You will need
to edit your shuffle station selections on the iPhone before connection.
- Skip Songs: You can skip song tracks within a station.
You cannot skip back to a previous song. Pandora limits the number of skips
- Thumbs Up/Down: You can give songs a thumbs up or
thumbs down to help Pandora personalize stations to suit your preferences.
Note: Access to the Pandora service will depend on the
availability of a cellular and/or WiFi network for purposes of allowing your
iPhone to connect to the Internet. Pandora is not supported in Canada and
only available in the United States.
iPod/iPhone Compatibility Chart: The Dual MGH20 is "Made for
iPod/iPhone" compatible and supports the following iPod/iPhone model features
(as of 6/26/2014):
| Apple Device || Generation || Tested Version || Media Type || Control Type || Display Type || Charge |
| Audio || Video || Head Unit || iPod/iPhone || Pandora app || Artist/Song Text || Track Info |
| iPhone || 2G || 3.1.3 || Y || N || Y || N || N || Y || Y || Y |
| 3G || 4.2.1 || Y || N || Y || N || N || Y || Y || Y |
| 3GS || 5.1.1 || Y || N || Y || N || Y || Y || Y || Y |
| 4 || 7.1.1 || Y || N || Y || Y || Y || Y || Y || Y |
| 4S || 7.1.1 || Y || N || Y || Y || Y || Y || Y || Y |
| 5 || 7.1.1 || Y || N || Y || Y || Y || Y || Y || Y |
| 5C || 7.1.1 || Y || N || Y || Y || Y || Y || Y || Y |
| 5S || 7.1.1 || Y || N || Y || Y || Y || Y || Y || Y |
| touch || 1st || 2.2.1 || Y || N || Y || N || N || Y || Y || Y |
| 2nd || 4.2.1 || Y || N || Y || N || N || Y || Y || Y |
| 3rd || 5.1.1 || Y || N || Y || N || N || Y || Y || Y |
| 4th || 6.1.2 || Y || N || Y || Y || N || Y || Y || Y |
| 5th || 7.1.1 || Y || N || Y || Y || N || Y || Y || Y |
| nano || 1st || 1.3.1 || Y || N || Y || N || N || Y || Y || Y |
| 2nd || 1.1.3 || Y || N || Y || N || N || Y || Y || Y |
| 3rd || 1.1.3 || Y || N || Y || N || N || Y || Y || Y |
| 4th || 1.0.4 || Y || N || Y || N || N || Y || Y || Y |
| 5th || 1.0.2 || Y || N
|| Y || N || N || Y || Y || Y |
| 6th || 1.2 PC || Y || N || Y || N || N || Y || Y || Y |
| 7th || 1.02 PC || Y || N || Y || N || N || Y || Y || Y |
| classic || 80GB || 1.1.2 || Y || N || Y || N || N || Y || Y || Y |
| 120GB || 2.0.1 || Y || N || Y || N || N || Y || Y || Y |
| 160GB || 2.0.4 || Y || N || Y || N || N || Y || Y || Y |
| video || 5th || 1.3 || Y || N || Y || N || N || Y || Y || Y |
| iPad || 1 || 5.1.1 || Y || N || Y || N || Y || Y || Y || N |
| 2 || 7.1.1 || Y || N || Y || Y || Y || Y || Y || N |
| 3 || 7.1.1 || Y || N || Y || Y || Y || Y || Y || N |
| 4 || 7.1.1 || Y || N || Y || Y || Y || Y || Y || N |
| mini || 7.1.1 || Y || N || Y || Y || Y || Y || Y || Y |
| air || 7.1.1 || Y || N || Y || Y || Y || Y || Y || N |
Note: Apple iPod/iPhone software updates may change
functionality results. If you download a newer software version, you may
need to reset the head unit and your iPod/iPhone to regain functionality. If
this doesn't work, you may need to wait until a newer software update is
AM/FM Tuner: The Dual marine head unit features a built-in
AM/FM tuner with manual, seek, and preset tuning. You can store up to 18 FM
station presets and 12 AM station presets.
Aux Input: The marine receiver features a rear-panel stereo
RCA auxiliary input for connecting an external marine audio device.
MOSFET Amplifier: The Dual marine receiver is equipped with
a MOSFET amplifier. Compared to conventional power supplies, the MOSFET
amplification circuit is smaller and more efficient, and it delivers increased
power with less distortion and absolutely zero on/off switching noise. More
power means louder and cleaner music at higher volumes because you're not
pushing the limits of the amplification circuit. The power output specs for the
head unit are as follows:
- CEA2006 Specs: 18 watts RMS x 4 channels (at 4 ohms,
20Hz-20kHz, 1% THD-N)
- Maximum Power Output: 60 watts x 4 channels (240 watts
Note: The power specifications for this head unit are
compliant with the CEA2006 Mobile Amplifier Power Testing and Measurement
standards from the Consumer Electronics Association (CEA). These standards
were developed as a way to equitably compare power specs from model to model
and between manufacturers.
2V/2Ch Preamp Outputs: The MGH20 features a pair of 2-volt
preamp outputs to connect an external amplifier. The preamp outputs are fading
and cannot be set to non-fading.
Equalizer: The receiver features the following preset EQ
curves (Rock, Beat, Classic, Jazz, Flat, or User) to customize your music
listening. The User mode lets you manually adjust Bass, Mid, & Treble to your
Loudness: Activating the Loudness feature will enhance the
bass and treble frequencies when listening to music at low volumes.
Source Volume Level: The Source Volume Level control allows
a gain adjustment for each audio source (Tuner, Aux, USB, iPod); depending on
the relative volume of each audio source.