Manual
AUDIO
OSD
OSD Audio introduces an unique line of outdoor omni in-ground speakers. When 
properly installed, this product will provide you with many years of entertainment 
pleasure.
Amplifier and Receiver Consideration
The omni speakers should be powered by an amplifier or receiver that provides 
a minimum of 10 watts per channel
Optional Accessories -
Volume control - Heavy duty cables
Tools needed for installation
Wire
Spade or trench tool
Direct burial rated speaker cable
16AWG.............................................................................................................100 ft
14AWG..................................................................................................100 - 150 ft
12AWG..................................................................................................150 -2 00 ft
Specifications
Design:
Tweeter:
Woofer:
Frequency Response:
Power Handling:
Finishes:
Impedance:
Efficiency:
Dimensions:
Unit Weight:
Unit of Measure:
Weather resistant in ground loudspeaker
1” coaxial mylar wheezier cone
5-1/4” black polypropylene cone 
50 Hz - 20 Khz
100W
Green
8 Ohms nominal
89 dB
8-1/2” x 9-1/8” x 8-1/2”
8 lbs x 2 (16lbs/pack)
Pair
Sold in pairs with a 2 year warranty
The Technical Support Center at OSD Audio is available between the hours of 
8:30 AM - 5:30 PM PST, Monday through Friday, excluding holidays.
Warranty & Repair
All OSD Audio speaker products have (2) year Limited Warranty against defects in materials and 
workmanship. Proof of purchase must accompany all claims. During the warranty period OSD 
will replace any defective part and correct any defect in workmanship without charge for either 
parts or labor.
OSD Audio may replace returned speakers with a product of equal value and performance. In such 
cases, some modifications to the mounting may be necessary and are not OSD’s responsibility.
For this warranty to apply, the unit must be installed and used according to its written instructions. 
If necessary, repairs must be performed by OSD. The unit must be returned to OSD at the owner's 
expense  and  with  prior  written  permission.  Accidental  damage  and  shipping  damage  are  not 
considered defects,  nor is  damaged resulting  from abuse  or from  servicing performed  by an 
agency or person not specifically authorized in writing by OSD.
OSD  Audio  sells  products  only  through  authorized  dealers  and  distributors  to  ensure  that 
customers obtain proper support and service. Any OSD product purchased from an unauthorized 
dealer or other source, including retailers, mail over dealers and online sellers will not be honored 
or serviced under existing OSD warranty policy. Any sale of product by an unauthorized source or 
other manner not authorized by OSD shall void the warranty on the applicable product.
Damage to or destruction of components due to application of excessive power voids the warranty on 
those parts. In these cases, repairs will be made on the basis of the retail value of the parts and labor. To 
return for repairs, you must email customer service at RMA@osdaudio.com for a Returned Merchandise 
Authorization (RMA) number# then the unit must be shipped to OSD at the owner's expense, along with 
a note explaining the nature of service required. Be sure to pack the speaker(s) in a corrugated container 
with at least 3 inches of resilient material to protect the unit from damage in transit.
This Warranty Does Not Cover:
Damage caused by abuse, accident, misuse, negligence, or improper operation (installation) • Any 
products that have been altered or modified • Any  product whose identifying number of decal, 
serial #, etc. has been altered, defaced or removed • Normal wear and maintenance.
Step 1
Evaluate the location of the speakers. Project 
the length of speaker wire you will run.
Note: when purchasing additional wire direct 
burial grade is strongly recommended.
Omni Speakers reproduce sound in a full 360 
degree and a few speakers will cover a large 
area with sound if properly placed and 
spread out.
Step 2
Dig A trench to run your speaker cable in. 
Once you have decided on the locations for 
your speakers, dig a hole about 5” to each 
speaker location for the speaker wire.
For the Omni speaker, dig a trench hole 
approximately 12” in diameter and 4” deep 
should be dug for the speaker enclosure.
Step 3
Place the Omni speaker in the hole you have 
dug. Run the direct burial wire through the 
trench to the location of the amplifier or 
receiver.
Please note: When connecting the additional 
wire be sure to use water tight wire 
connectors.
Step 4
Connect the wires from the omni speakers to 
the amplifier or receiver. Please make sure 
the polarity on the cables and speakers are in 
sync.
Step 5
Turn on your amplifier or receiver to test the 
speakers.  If  the  speakers  are  operating 
properly,  refill  wire  trench  and  cover  the 
submerged part of the speaker.
OS 525
360 in ground speaker
Installation Instructions
0
 OSD AUDIO • 775 Columbia St • Brea • CA • 92821 • www.osdaudio.com • Tel (888) 779 - 4968 • Fax (714) 256 - 8300

