Features and Specifications: The OSD MA2 outdoor/marine amplifier is a great solution for customers who want to a simple outdoor speaker system such as a pair of smaller speakers in the patio or by the pool. Rated at 25W per channel, this all-weather amp uses an impact resistant, all weather ABS enclosure so it can take the rigors of the outdoor climate. Other features include a built-in AM/FM tuner and a convenient iPod jack and included mini cable so you're up and running in a matter of minutes. The MA2 works with any indoor/outdoor power outlet and is perfect for listening to outdoor speakers without interfering with interior speaker set-ups.
- UL certified 12V external power supply for domestic or commercial installs
- 25 Watts x 2
- Powers 1 pair of outdoor speakers
- Play CD, MP3 or iPod® music and AM/FM Radio
- ABS impact resistant enclosure and weatherproof design
- LCD menu and "touch" buttons
- Black satin finish
- 2 Mic inputs
- Includes main transformer for 12V operation (directly plug into power outlet)
- Dimension: 8 1/2" L x 6 3/16 W x 2 5/8" H
- Includes digital 3.5mm to 3.5mm jack and AM/FM antennas
- 1 Year Warranty
Questions and Answers:  By Slash from Texas on June 28, 2012 Will this have enough power for a pair of Insignia Rock Outdoor Speakers Model # NS-R2111? By Customer Service - Q&A on June 28, 2012Answer:Hi Slash,
This outdoor receiver is typically used with 4" speakers or smaller so you might find you'll need more power. We recommend using the AMP120 indoors and then running speaker cable outside to the speakers. This will give you more ideal power and maximize sound quality.
CL/MABy Ed from Los Angeles on June 30, 2012 Does this come with outdoor speaker wires? If not, what kind would be suggested? By Customer Service - Q&A on July 2, 2012Answer:Hi Ed,
This unit comes with four speaker wires, which measure about four feet long. They are terminated with RCA connectors on one end (that plugs directly into the MA2 back panel). The other end of the cable is 2-conductor: red for positive and black for negative. These are not terminated but rather bare wires. You can extend the cables (if they are not long enough) by splicing them with something like our CL3- rated 16-gauge, 2-conductor cable which is ideal for in-wall, outdoor and direct burial applications. If you need to extend the cables, I would recommend splicing into the cable as near to the input connector as possible (within a foot of the connector). I hope that answers your question.
TL/MA
By GAry from Fort Lauderdale Florida on May 8, 2012 How do I purchase another power transformer? By Customer Service - Q&A on May 8, 2012Answer:Gary,
Yes we do, the power supply is 29.99. Your reference number is 211679
CLBy Christy from Folly Beach, SC on May 17, 2012 Can you used wireless speakers with this system
By Customer Service - Q&A on May 17, 2012Answer:Christy,
You can use this with a wireless system yes. Check out the popular WR800's - Their great!
CLBy Paul Rassel from PA on May 18, 2012 What ohm speakers should be used with this system. Can I use it on a golf cart . Can I hook it up directly to 12 Volt battery? By Customer Service - Q&A on May 18, 2012Answer:The MA2 should be used with 8 ohm speakers and you have a choice of powering the unit with a 12 volt Cigarette lighter adapter plug. Hopefully you have a cigarette or 12 volt outlet on your golf cart. Our outdoor patio speakers might work the best for you application.
CLBy daniel from Gold Coast, Australia on November 5, 2011 Will this power outdoor speakers? I have two sets of outdoor speakers but they have the type of input that requires raw speaker wire to be connected to it for audio output and power. Would this be something that I could use to connect it to this?
Thanks,
Daniel By Customer Service - Q&A on November 7, 2011Answer:The MA2 comes with four speaker cables featuring an RCA jack (two black and two red) at one end and two bare wires (positive and negative) at the other end. Although the unit was designed for two pairs of speakers, we typically do not recommend more than a single pair. Connecting two pairs causes an unfavorable load (four ohms or lower depending on the actual impedance of the speakers) for the internal amplifier and eventually causes it to shut down. One thing to consider would be to use the MA-2 to drive a single pair of speakers and then adding our OSD AMP60 to drive the second pair of speakers. There is a cable included to connect the two. The AMP60 also features four speaker outputs but the same rule applies as the MA-2 (recommending one pair of speakers only). In this setup, you will have no problem connecting or driving your current two pairs of outdoor speakersBy Jim from Jacksonville, FL on May 24, 2012 I have a pair of Bose 151® SE environmental speakers and I would like to run them to this and connect the TV/ Cable box to this as well. Is this possible? If not do you have another outdoor receiver amp you recommend? By Customer Service - Q&A on May 24, 2012Answer:Jim,
Those are 4ohm speakers- so this would not work with the MA2- If you are running a single pair you should hook up our AMP120 or AMP150. Although this would not work for your outdoor application because they are both indoors. You would have to build them into something totally protected from the elements.
CLBy Casey from Lexington,ky on November 25, 2012 I have a old pair of klh rlh 450. From reading seems like it will run fine with this amp. Wanted to make sure before I purchased? By Customer Service - Q&A on November 25, 2012Answer:Hi Casey:
I would not go with less than our AMP120 to drive your 8" KLH rock speakers. Timing is good checkout the Cyber Monday special on the AMP120.
TL 1414By Marlin from Minneapolis minnesota on April 1, 2012 Will you be getting any more of these in stock
By Customer Service - Q&A on April 2, 2012Answer:Hi Marlin:
The MA2 have been shipped from our Factory, they are literally on the water. We expect them to arrive the first week of May.
TLBy Jerry from Chicago on July 27, 2012 With this outdoor amp, which outdoor speakers do you recommend? I know it is 8 ohm. I am looking to put it on a pool deck with a couple of speakers and use an mp3 player.
And are there any additional accessories that work well with this setup.
Thanks,
Jerry
By Customer Service - Q&A on July 27, 2012Answer:Hi Jerry,
The MA2 puts out 25 watt per channel so our smallest patio speaker would be the way to go. Take a look at our AP425
CLProduct Reviews:
MA2 Outdoor Receiver / Outdoor Amp / Marine Amplifier
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4.5 Stars based on 24 Review(s) |
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Great product and OSD is great
April 12, 2013
Perfect item. Exactly what I needed at the right price.
Ed
Laguna Niguel
4.5 Stars
I would recommend this item to a friend.
great outdoor amp
April 12, 2013
I bought this love it. Hooked it up to some rock speakers. It's perfect everyone loves it.
Pros:Small weather safe.
Cons:Scanning radio stations
Nigel Purvis
nc
4.5 Stars
I would recommend this item to a friend.
Great Outdoor Amp
December 21, 2012
Installed this amp as an outdoor unit to listen to AM/FM
and aux input from airplay system (Apple iOS devices via wi-fi).
Works great, no problems on setup. A remote option would be nice,
but not necessary since this is taking input mainly from
iPhones/iPads that can control volume output.
Pros:Good Power Output, Fits In Small Space, Easy To Set Up
Cons:Does Not Have Remote
Best Uses:Basic Systems, Outdoor use
Wildcat 86
Kingsport TN
4.5 Stars
I would recommend this item to a friend.
Great product package for the price
October 12, 2012
I received the unit with a bad power supply, but e-mailed
in and was sent a replacement. Thank you! Works fine so far, but
wish it had better receiption for radio. It also seems to run hot,
but no problems so far, or until my kids crank it up. Then will see
how it holds up! I like it for the money but would pay more for an
upgraded unit with more amps and better reception. Overall good
buy!
Pros:All In One Features, Easy To Set Up, Great Sound Quality
Cons:Runs Hot, Poor Reception / Weak
Antenna, Lack Of Power, Difficult Station Presets
Best Uses:Smaller Rooms, Basic Systems, Outdoor patio
Kirk
Dallas
4.5 Stars
I would recommend this item to a friend.
Good product for the price
September 16, 2012
Great poolside product. Short antenna supplied resulted
in poor reception - but just replaced with a longer piece of wire
for great reception. Original power supply transformer failed in
only two weeks, however, had a new one within 2 days of notifying
OSD. No issues now.
Pros:Easy To Set Up, Great Sound Quality, Many features
Cons:Poor Reception / Weak
Antenna
Best Uses:Pool Patio
Brad
Lewis Center, Ohio
4.5 Stars
I would recommend this item to a friend.
EXCELLENT VALUE AND PERFORMANCE
July 24, 2012
USED AS PRIMARY RECEIVER FOR OUTDOOR SOUND SYSTEM THAT IS
HOOKED UP TO MULTI SPEAKER AMP DRIVING 6 WIRED AND 2 WIRELESS
SPEAKERS.
Pros:Compact Size, Good Power Output
Best Uses:Basic Systems
POL
CHESAPEAKE, VA
4.5 Stars
I would recommend this item to a friend.
Very satisfied
July 9, 2012
Used in my BBQ area, stored outside. Provides audio
entertainment. I also purchased four (4) outdoor rock speakers from
OSD to use with this unit......great sound! I have received
numerous compliments on sound from this system.
Pros:Accurate Controls, Easy To Set Up, Great Sound Quality
Cons:Runs Hot, Poor Reception / Weak
Antenna
Best Uses:Basic Systems
EMC Martin
Riverside, Ca
4.5 Stars
I would recommend this item to a friend.
it doesnt get any better
May 13, 2012
yes this was a gift! to myself!. wow! this product was
excactly what i was in the market for and better yet i ordered it
on monday and got it on tuesday with free shipping. AMAZING! the
best internet purchase experience of my life! it gets better! not
only do i NOT need to get wires for the speakers(speaker wires
included) but i also received an ipod port and cable!
amazing
Pros:Great Sound Quality, Awesome, Good Power Output, Easy To Set Up
Cons:Not enough time to use it
Best Uses:Destroying wicked foes, Outside
Codabear
Paso Robles, CA
4.5 Stars
I would recommend this item to a friend.
Outdoor RFeceiver
September 1, 2011
This was what my deck needed, it is small and easy to
use
Pros:Great Sound Quality, Easy To Setup
Locutis
Grove City, Oh
4.5 Stars
I would recommend this item to a friend.
Just a good, basic outdoor amp
August 24, 2011
Got a free pair of outdoor speakers when I bought my home
theater system and just needed a simple amp to use them with my
iPod. This fit the bill. I was confused at first looking at the
pictures how the speakers hook up but it comes with a short RCA to
normal speaker wire....wire.
Pros:Bang for the buck, Easy To Setup, Water Resistant, Wires included
Cons:Ugly, Screen display
Best Uses:Backyard
Mr. BBQ
Naperville, IL
4.5 Stars
I would recommend this item to a friend.
Exactly what I needed.
August 22, 2011
I bought this to use on the patio, but didn't really know
what to expect. I was quite pleased to have both radio and Ipod
capabilities, and with great sound too.
Pros:Easy To Setup, Accurate Controls, Good Power Output, Great Sound Quality
Rickover
Lakewood, CA
4.5 Stars
I would recommend this item to a friend.
PERFECT!!!!!
July 14, 2011
Exactly what I was looking for, the final peice to my
outdoor Home Theater!! Water resistance but dont be foolish. Great
Item with great features.
Pros:Good Power Output, Size easy to hide, Great Sound Quality, Easy To Setup
Cons:Display hard to read
Best Uses:Outside theater setup
MJ FitnessFreak
Baldwin Harbor NY
4.5 Stars
I would recommend this item to a friend.
Great product for the price
July 11, 2011
This is a great little box for the pool or patio. Easy to
setup and has good reception and easy controls. The only issue is
see, is that the radio itself is weather proof but, the ac power
transformer is not. I purchased a small plastic box and enclosed
the transfomer. Easy solution.
Pros:Great Sound Quality, Easy To Setup
Best Uses:Pool or patio
Steel
Burlington,NC
4.5 Stars
I would recommend this item to a friend.
Great receiver for the money and use!
July 9, 2011

If you're looking for an outdoor only receiver, this is a
great deal. We set it up outside our hot tub and purchased the
AP390 Outdoor 3" Patio Speakers upon recommendation from OSD. The
receiver produces enough power for background listening and lower
volumes, but this receiver doesn't have a lot of power if you want
to play your music loud. For us, this is perfect because we don't
want to make our neighbors mad with loud music and we can hear it
perfectly well in the tub. The controls are easy to use and radio
reception is good. I will say that you could hook it up to slightly
larger speakers than the ones we got, as I tested it on some bigger
speakers I had. Being weather resistant, it works well mounted
outside under an overhang which blocks direct exposure to rain. I'm
not saying you couldn't get a much better system for a lot more
money, but for the price, you can't go wrong. All in all, its the
perfect system for us around the hot tub and for only $120, you
can't beat it!
Pros:Accurate Controls, Easy To Setup, Basic and simple
Cons:Lack Of Power
Best Uses:Outdoors only
Tom
Bend, OR
4.5 Stars
I would recommend this item to a friend.
A True Bargain
July 8, 2011
I wanted music on my screened in porch, but already have
the DVD player in the house which was not multi-room, and didn't
really feel like upgrading that. So I searched and searched for
something for outdoor. I would have purchased this at twice the
price. Plug it in, wire the speakers to the provided leads, plug in
the iPod and done. I am pushing two in-ceiling speakers in a 15 X
15 screened porch, and it more than sufficient. Even includes the
cord to plug in the iPod. Bought a basket for $9 to put it in so
all the cords don't show.... outdoor stereo for cheap!
Pros:Easy To Setup, Price
Cons:Poor Reception / Weak
Antenna
gbelleville
Ellicott City, MD
4.5 Stars
I would recommend this item to a friend.
As promised (with a little tweaking)
June 16, 2011
Finding an Outdoor Receiver is a challenge, especially a
receiver with all of the inputs this one has. I would definitely
recommend this product to anyone looking for a solution for stand
alone outdoor entertainment. I had many positive comments on this
receiver from friends gathering for cookouts. With the improved FM
Antenna I purchased, I am much more satisfied with my purchase of
this receiver.
Pros:Good All In One Package, Easy To Setup, Outdoor Safety
Cons:Runs warm, I changed out FM Antenna, Poor Reception / Weak
Antenna
Best Uses:Great for Outdoor Gazebo, Smaller Rooms
Chris
Raleigh, NC
4.5 Stars
I would recommend this item to a friend.
I recently ordered the ...
April 20, 2011
I recently ordered the small MA2 exterior amp and a pair
of 6 inch speakers for under my screen porch. The amp and speakers
sounded great, so I went back to OSD for 2 of the planter speakers
for my pool deck also sound great. I was real impressed how fast
shiping was, 5 days on both orders and I'm on the east
cost.
Anonymous
Undisclosed
4.5 Stars
Sounds surprisingly ...
April 4, 2011
Sounds surprisingly decent for the price. Very simple to
set up and even comes with all of the input and output cables.
Overall, I have been very pleased. The only downside is the FM
reception with the little antenna is pretty weak.
Michael
Dalton, GA
4.5 Stars
I spent quite awhile ...
September 28, 2010

I spent quite awhile looking for an outdoor system for my
gazebo. I'm picky about electronics so, I looked hard and long at
setting up a marine stereo based system. I ultimately came back to
this unit for its simplicity and low cost. At first, the case
seemed too light weight and the interface too basic to me. I hooked
it up to rock speakers and was amazed at the strong sub-like bass
and general output volume. I then tried an inexpensive pair of
indoor/outdoor 3-ways in the gazebo and they sounded even better
due to the high frequency capabilities of the tweeters. All-in-all,
its a nice simple outdoor solution that easily fills the gazebo and
moderate sized backyard with sound. Reception with the supplied
string FM antenna is marginal, but adequate. Unfortunately, it does
not have any balance or fader capabilities. But, that's OK for my
application. Actually has 2 sets of 2-channel RCA outputs and is
able to easily drive both my small 3-ways and rock speakers at the
same time. Great simple little unit for the money. Would definately
recommend it to a friend! However, I would have purchased an
upgraded (balance/fader/tone/waterproof AC/DC converter, etc.)
model if they made one. Hint...Hint!
Keith
Gresham, OR
4.5 Stars
Sound quality was better ...
July 2, 2010
Sound quality was better than expected, the antenna/tuner
reception is to put it mildly...BAD!!! Would I recommend this to
someone else, yes, good product for the price.
Bought this unit strictly ...
June 27, 2010
Bought this unit strictly for price.I was pleasantly
surprised at the performance and highly recomend it!
Chico
Vincent,Al.
4.5 Stars
Bought this tuner/amp for ...
June 2, 2010
Bought this tuner/amp for an outdoor gazebo. Power isn't
sufficient for blasting out the back yard, and as the other
reviewer noted the display can be a bit hard to read, but I have to
say for a set-it-up and forget it outdoor amp it is great - would
purchase again. Note however that the power supply is a
conventional adapter and is not waterproof and you can buy an
outdoor cover at HomeDepot to protect it.
Paul
Seattle, WA
4.5 Stars
i was looking for outdoor ...
October 29, 2009
i was looking for outdoor speakers and everything I found
was way to expensive and doing some internet searching I found this
company. And the had exactly what I needed and at a great price.
Got the whole setup for the price of a single speaker here locally.
The sound is amazing and works well with an MP3 Player, Ipod and
Iphone hooked to it. And the FM reception is great.
Gary
Undisclosed
4.5 Stars
AFTER I GOT THE AMP. I ...
August 13, 2009
AFTER I GOT THE AMP. I DID A TEST BEFORE INSTALLING IT. I
WAS VERY SURPRISED HOW WELL IT SOUNDED. I INSTALLED IT IN A DECK
STORAGE BOX. BOUGHT THE FROG SPEAKERS THAT SELL AND WIRED IT ALL
UP. IT SOUNDS GREAT AND IT TOTALY HIDDEN. THE ONLY THING IS THAT
THE FACE IS HARD TO SEEUNLESS IT IS SHADED OR DARK. WITH THE SIZE
OF IT. IT CAN GO ANYWHERE. I WILL RECOMEND THIS PRODUCT TO
ANYONE.
DAVID
Undisclosed
4.5 Stars
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