Marine Speaker Reviews

Marine Speaker Reviews

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Marine Speaker Reviews

A Twenty Years Projection- Oceanology

Introduction

The world's energy needs have become a topic of interest for oceanic and marine experts as the concern for energy renewability is slowly turning attention away from fossil fuels to marine life. It is likely that this issue will take centre stage among marine stakeholders twenty years from now. (Thomas, 2008)

Part A-Annotated review of article

Thomas, M. (2008): Lord Brown Speech - Oceans and energy sustainability; Oceanology International, 12th March 2008

The article is a review of what the chief executive officer of the royal Academy of Engineering said at the largest marine technology event in the world. He first began by talking about the problems of the modern world. He cited the issue of high population growth in the future and the increasing cost of living as examples. In this regard, the speaker felt that there ought to be some levels of sustainability incorporated in service provision. According to him, these latter issues are directly related to energy use because new methods need to be examined to provide this rising population with cheap energy. Also, that energy must be such that it will not infringe on future sustainability. The speaker further asserted that the use of fossil fuels will have a huge impact on the world's marine environment because fossil fuels emit greenhouse gases which propagate global warming. In line with this argument, Lord Brown claimed that in order to enhance energy sustainability, it was necessary to harness marine energy. He gave an example of how ocean currents have ten times as much usefulness and force as wind energy. Since a substantial portion of the world's environment lives near oceans, then there is need to look into ways of enhancing these marine technologies. He argued that there were eighty groups already looking at the feasibility of marine energy at large scale. He however, gave a word of caution that for realization of the full potential of marine technology, it was necessary for marine scientists to collaborate with governments, businesses and other stakeholders

Part B-Analysis of the issue

The issue under analysis is the role of the marine environment in energy sustainability. Oceans can play a very positive role in changing the energy landscape. Because of the potential that ocean waves, gas hydrates and other sources present to the world energy consumer. However, there will also be some negative impacts in that using such an energy source could interfere with marine life especially with regard to marine mammals. (Thomas, 2008)

The issue of harnessing oceanic technologies for energy in the future could affect numerous professionals. For instance, there will be a need for collaboration with government decision makers. Additionally, there will also be need to work closely with the marine researcher. The latter groups will be largely responsible for examining the suitability and applicability of this mode of energy. Industrialists and manufacturers will also have to participate because they will be responsible for distribution and large scale generation. The issue will also affect directors, managers and entrepreneurs since they will coordinate activities involved.

Part C: Projection of year 2028

Twenty years from toady, it is likely that the world will have heightened environmental concerns bout aquatic life. By harnessing ocean technologies for energy, there will be considerable strain on marine animals as most of them may have to migrate to areas with minimal interference from man. Additionally, marine life will be under great danger owing to the fact that some people still have to deal with other explorers who continuously use marine resources. (Thomas, 2008)

Twenty years from now, the world is likely to witness greater levels of interdependency among major actors in the world. This means that it is likely that more stakeholders will be working hand in hand to tackle marine issues. For instance, investors will be giving scientists capital necessary to implement their energy harnessing technologies. Besides this, policy makers will be establishing the rules that will govern those respective groups. Also, marine engineers and scientists will be looking fro the most appropriate practical solutions. All in all, the world is likely to witness both positive and negative aspects.

Reference

Thomas, M. (2008): Lord Brown Speech - Oceans and energy sustainability; Oceanology International, 12th March 2008

About the Author

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Boss MR60W Marine Speaker


Boss MR60W Marine Speaker


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2-way 20 kHz 200 W 4 Ohm 80 Hz 90 dB Boss Boss Audio Systems MR60W MR60W Marine Speaker MR60W/AVA-MR60 Plastic Speaker www.bossaudio.com

Boss / 6.5 MARINE HQ SPEAKER / MR652C


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Pyle Audio Pyle PLMR6K Marine Speaker


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Boss Marine MRWT6W - Marine Speaker. Each


Boss Marine MRWT6W - Marine Speaker. Each


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Boss Marine MRWT69 - marine speaker. Each


Boss Marine MRWT69 - marine speaker. Each


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Manufacturer: Boss. Each. Product Type: Marine speaker Speaker Type: 4-way - passive Max (RMS) Output Power: 550 Watt Response Bandwidth: 40 - 20000 Hz Input Impedance: 4 Ohm Connectivity Technology: Wired Speaker System Details: Marine speaker - 40 - 20

Boss MR50W Marine Speaker


Boss MR50W Marine Speaker


$21.99


120 Hz 150 W 18 kHz 2-way 4 Ohm 90 dB Magnet Structure: 30 oz Voice Coil: 0.75" Aluminum Boss Boss Audio Systems MR50W MR50W Marine Speaker Speaker www.bossaudio.com

Boss MR690 Marine Speaker


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2-way 20 kHz 350 W 4 Ohm 6" 60 Hz 9" 92 dB Voice Coil: 1" Aluminum Magnet Structure: 50 oz Boss Boss Audio Systems MR690 MR690 Marine Speaker Plastic Speaker mr690 www.bossaudio.com

Bazooka MAC6903W Marine Speaker


Bazooka MAC6903W Marine Speaker


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20 kHz 3-way 55 Hz 6" 9" Power Handling: 150W Polyurethane rubber woofer surrounds Poly-mica woofer cones Bazooka MAC6903W MAC6903W Marine Speaker Southern Audio Services Speaker White www.sasbazooka.com

Boss MR695 Marine Speaker


Boss MR695 Marine Speaker


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18 kHz 2-way 3.75 lb 4 Ohm 40 Hz 400 W 6" 9" 90 dB Size: 6" x 9" 1.5" Aluminum Voice Coil Boss Boss Audio Systems MR695 MR695 Marine Speaker Plastic Speaker www.bossaudio.com

Boss Marine MRWT69W - Marine Speaker. Each


Boss Marine MRWT69W - Marine Speaker. Each


$102.99


Manufacturer: Boss. Each. Product Type: Marine speaker Speaker Type: 4-way - passive Speaker Diameter: 6" x 9" Max (RMS) Output Power: 550 Watt Response Bandwidth: 40 - 20000 Hz Input Impedance: 4 Ohm Connectivity Technology: Wired Speaker System Details:

Boss Marine MR60W - marine speaker. Each


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$32.14


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Boss Marine MR690 - marine speaker. Each


Boss Marine MR690 - marine speaker. Each


$62.02


Manufacturer: Boss. Each. Product Type: Marine speaker Speaker Type: 2-way - passive Speaker Diameter: 6" x 9" Max (RMS) Output Power: 350 Watt Response Bandwidth: 60 - 20000 Hz Input Impedance: 4 Ohm Connectivity Technology: Wired Speaker System Details

Boss Marine MR695 - marine speaker. Each


Boss Marine MR695 - marine speaker. Each


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Manufacturer: Boss. Each. Product Type: Marine speaker Speaker Type: Coaxial - 2-way - passive Speaker Diameter: 6" x 9" Max (RMS) Output Power: 400 Watt Response Bandwidth: 40 - 18000 Hz Input Impedance: 4 Ohm Connectivity Technology: Wired Speaker Syste

Pyle PLMR6K Marine Speaker


Pyle PLMR6K Marine Speaker


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1 100 W 2-way Passive 200 W 4 Ohm 6 kHz 6.50" 85 Hz PLMR6K Marine Component Speaker System Mounting Hardware Wiring Kit Wiring Diagram & Template Water Proof ABS Protective Housing Direct Connect Woofer and Tweeter Wiring Tweeter Output Power: RMS: 50 Watts Peak: 100 Watts Mid Range: High Quality Poly Carbon Cone Water Resistant Construction Design High Temperature Voice Coil Tweeter: PEI Dome Tweeter 2 Mounting Options: Flush Surface Hydra Limited PLMR6K PLMR6K Marine Speaker Plastic Pyle Pyle Audio, Inc Speaker www.pyleaudio.com

Boss Marine MRWT6B - Marine Speaker. Each


Boss Marine MRWT6B - Marine Speaker. Each


$156.71


Manufacturer: Boss. Each. Poly injection cone. Marinized enclosure Product Type: Marine speaker Speaker Type: 2-way - passive Max (RMS) Output Power: 500 Watt Response Bandwidth: 60 - 20000 Hz Input Impedance: 4 Ohm Connectivity Technology: Wired Speaker

Boss Marine MRWT6C - Marine Speaker. Each


Boss Marine MRWT6C - Marine Speaker. Each


$173.95


Manufacturer: Boss. Each. Poly injection cone. Marinized enclosure Product Type: Marine speaker Speaker Type: 2-way - passive Max (RMS) Output Power: 500 Watt Response Bandwidth: 60 - 20000 Hz Input Impedance: 4 Ohm Connectivity Technology: Wired Speaker

Boss Marine MRWT8W - Marine Speaker. Each


Boss Marine MRWT8W - Marine Speaker. Each


$208.46


Manufacturer: Boss. Each. Marinized enclosure. Poly injection cone Product Type: Marine speaker Speaker Type: 2-way - passive Max (RMS) Output Power: 700 Watt Response Bandwidth: 40 - 20000 Hz Input Impedance: 4 Ohm Connectivity Technology: Wired Speaker

Boss Marine MRWT8B - Marine Speaker. Each


Boss Marine MRWT8B - Marine Speaker. Each


$208.46


Manufacturer: Boss. Each. Marinized enclosure. Poly injection cone Product Type: Marine speaker Speaker Type: 2-way - passive Max (RMS) Output Power: 700 Watt Response Bandwidth: 40 - 20000 Hz Input Impedance: 4 Ohm Connectivity Technology: Wired Speaker

Boss Marine MR650 - marine speaker. Each


Boss Marine MR650 - marine speaker. Each


$59.64


Manufacturer: Boss. Each. The MR650 features an outboard crossover which is contoured on its inner surface to mount snugly and securely to the rear housing. Product Type: Marine speaker Speaker Type: Coaxial - 2-way - passive Speaker Diameter: 6.5" Max (R

Boss MR650 Marine Speaker


Boss MR650 Marine Speaker


$47.99


18 kHz 2-way 250 W 3.12 lb 4 Ohm 6.50" 60 Hz Size: 6.5" SPL: 90 dB Voice Coil: 1" Aluminum The MR650 feature an outboard crossover which is contoured on its inner surface to mount snugly and securely to the rear housing. Boss Boss Audio Systems MR650 MR650 Marine Speaker Plastic Speaker www.bossaudio.com

Pyle Hydra PLMR60W Marine Speaker


Pyle Hydra PLMR60W Marine Speaker


$16.99


1.25 lb 150 W 16 kHz 2-way 2.50" 4 Ohm 45 Hz Hydra PLMR60W Marine Speaker Wires Mounting Hardware Size: 6.5" Completely Waterproof Built-in Molded Grill 1" Aluminum Voice Coil Mounting Depth: 2.5" ABS Plastic Cloth Hydra Hydra PLMR60W Marine Speaker PLMR60W Pyle Pyle Audio, Inc Speaker www.pyleaudio.com

Pyle Hydra PLMR61B Marine Speaker


Pyle Hydra PLMR61B Marine Speaker


$14.99


1 1.25 lb 1.50" 120 W 16 kHz 2-way 4 Ohm 45 Hz Hydra PLMR61B Marine Speaker Wires Mounting Hardware Size: 6.5" Completely Waterproof Built-in Molded Grill 1" Aluminum Voice Coil Slim Mounting Depth: 1.5" Black Cloth Hydra Hydra PLMR61B Marine Speaker PLMR61B Pyle Pyle Audio, Inc Speaker www.pyleaudio.com

Pyle Hydra PLMRX69 Marine Speaker


Pyle Hydra PLMRX69 Marine Speaker


$56.99


1 2-way 20 kHz 3.35" 300 W 4 Ohm 4.37 lb 50 Hz 6" 9" 93 dB Hydra PLMRX69 Marine Speaker Custom Grills Mounting Gasket Installation Hardware Water Resistant Construction 2-Way Attachable Grill Design 1.25" High Temperature Kapton Voice Coil Mounting Depth: 3.35" Hydra Hydra PLMRX69 Marine Speaker PLMRX69 Pyle Pyle Audio, Inc Santoprene Speaker White www.pyleaudio.com

PYRAMID MDC6 Waterproof Marine Speaker


PYRAMID MDC6 Waterproof Marine Speaker


$34.6


Manufacturer: Pyramid Car Audio Manufacturer Part Number: MDC6 Manufacturer Website Address: www.pyramidcaraudio.com Brand Name: Pyramid Product Model: MDC6 Product Name: MDC6 Waterproof Marine Speaker Product Type: Speaker Package Contents: MDC6 Waterproof Marine Speaker Mounting Kit Wires Grills

Pyle PLMR82 Marine Speaker System


Pyle PLMR82 Marine Speaker System


$38.99


2-way 20 kHz 300 W 4 Ohm 60 Hz 8" 91 dB 1.5" High Temperature Voice Coil Water Resistant Construction Design PLMR82 PLMR82 Marine Speaker System Pyle Pyle Audio, Inc Speaker plmr82 www.pyleaudio.com

Boss Audio Systems / Boss MR50W Marine Speaker / MR50W


Boss Audio Systems / Boss MR50W Marine Speaker / MR50W


$36.73


Boss Audio Systems - Boss MR50W Marine Speaker - MR50W

SeaWorthy / SeaWorthy 18 Gauge 50' Marine White Speaker Wire / SEASPK50


SeaWorthy / SeaWorthy 18 Gauge 50' Marine White Speaker Wire / SEASPK50


$22.94


SeaWorthy - SeaWorthy 18 Gauge 50' Marine White Speaker Wire - SEASPK50

Fusion / FUSION 4" Round 2-Way Marine Speaker - 120W / MS-FR402


Fusion / FUSION 4" Round 2-Way Marine Speaker - 120W / MS-FR402


$69.67


Fusion - FUSION 4" Round 2-Way Marine Speaker - 120W - MS-FR402

Jensen / Jensen MSX60SR 6-1/2" Coaxial Silver Marine Speaker / MSX60SR


Jensen / Jensen MSX60SR 6-1/2" Coaxial Silver Marine Speaker / MSX60SR


$67.77


Jensen - Jensen MSX60SR 6-1/2" Coaxial Silver Marine Speaker - MSX60SR

POLY-PLANAR MA-4600 Marine Dual Cone Speaker 6" Round


POLY-PLANAR MA-4600 Marine Dual Cone Speaker 6" Round


$49.11


POLY-PLANAR MA-4600 Marine Dual Cone Speaker 6" Round

2 Channel Waterproof Mp3/Ipod Amplified 6.5in Marine Speaker Syst


2 Channel Waterproof Mp3/Ipod Amplified 6.5in Marine Speaker Syst


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2 CHANNEL WATERPROOF MP3/IPOD AMPLIFIED 6.5IN MARINE SPEAKER SYST

4 Channel Waterproof Mp3/ Ipod Amplified 6.5in Marine Speaker Syst


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4 CHANNEL WATERPROOF MP3/ IPOD AMPLIFIED 6.5IN MARINE SPEAKER SYST

2-Way Marine Box Spkr


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BOSS AUDIO MR30 2-WAY MARINE BOX SPEAKER

Pyle Audio PLMR67B - Marine Speaker. Each


Pyle Audio PLMR67B - Marine Speaker. Each


$17.69


Manufacturer: Pyle Audio, Inc. Each. This 150-watt, 6.5" two-way hydra-series PYLE marine speaker is perfect for your boat or other marine application, providing great sound on land or at sea. The 2-way waterproof construction and trim give this speaker a

Pyle High Performance Marine Grade Speaker Wire


Pyle High Performance Marine Grade Speaker Wire


$11.99


1 Year 50 ft Audio Cable Copper High Performance Marine Grade Speaker Wire Pyle Pyle Audio, Inc plmrsw50 www.pyleaudio.com

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