


WELCOME!
Thank you for purchasing one of the best-sounding powered subwoofers ever produced. At KLH, we have been making high-quality components since 1957, and we take pride in making your music and movies the best experience possible.
FOR YOUR SAFETY
Important Safety Instructions!
1. READ these instructions.
2. KEEP these instructions.
3. HEED all warnings.
4. FOLLOW all instructions.
5. DO NOT use this apparatus near water.
6. CLEAN with dry cloth.
7. DO NOT block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
10. Only use attachments/accessories specified by the manufacturer.
11. Unplug this apparatus during lightning storms or when unused for long periods of time.
12. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
13. DO NOT expose to excess moisture or liquids, and do not place containers with liquids on top of speakers.
14. The ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, tablecloths, curtains, etc.
15. No naked flame sources, such as lighted candles, should be placed on the apparatus; the use of apparatus in moderate climates.
16. “WARNING” ,“To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.”
17. MAINS plug or an appliance coupler is used as the disconnect device, the disconnect devices all remain readily operable;
The exclamation point, within an equilateral triangle, is intended to alert theuser to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
The lightning flash with an arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of insulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electrical shock to persons.![]()
WARNING: Do Not Open! Risk of Electrical Shock. Voltages in this equipment are hazardous to life. No user-serviceable parts inside. Refer all servicing to qualified service personnel.
EU COMPLIANCE INFORMATION:
Eligible to bear the CE mark, Conforms to European Union EMC Directive 2004/108/EC; European Union Restriction of Hazardous Substances Recast (RoHS2) Directive 2011/65/EC; European Union WEEE Directive 2002/96/EC. KLH and the KLH logo are registered trademarks of Kelley Global Brands Inc., registered in the U.S. and other countries.
WE NOTICE
Note: This mark applies only to countries within the European Union (EU) and Norway.
This appliance is labeled in accordance with European Directive 2002/96/EC concerning waste electrical and electronic equipment (WEEE). This label indicates that this product should not be disposed of with household waste. It should be deposited at an appropriate facility to enable recovery and recycling
UNPACKING
Place the package on the floor or tabletop with the box flaps up. Cut the tape with a utility knife to open the package. Fold the carton flaps back and carefully slide the subwoofer and packaging from the box, or turn the box over with flaps open and remove the box. Stand the subwoofer and packing upright, making sure the subwoofer is right side up, and remove the packing material.
CONNECTION
Connect RCA connector from sub output on your amp/receiver to LINE input on the subwoofer.

CROSSOVER
If you are using the Bass Management crossover menu settings in your A/V receiver or processor, select the 150Hz setting on the subwoofer, if you are not using this function, set to 80Hz.
CROSSOVER 80
150
VOLUME CONTROL
This control affects the output of your subwoofer and should be set at the lowest level before turning the power on. Volume can be increased until the desired level is achieved. For 2-channel applications, you should adjust the volume to match the output of your speakers.
AC INPUT
Your subwoofer is supplied set to either 115 volts or 230 volts depending on the country it is shipped. This voltage can be changed by having a technician change the fuse (T3.15AL for 115 V and T1.5AL for 230V) and move the switch on your subwoofer amplifier to the desired voltage. Residents of some other countries will need to purchase an adapter or new proper power cord that fits your specific socket. 
TRIGGER
Use of the trigger is an optional hook-up. If your A/V receiver or A/V preamp/processor has a 12-volt trigger output, you can run a 3.5mm connector cable to the subwoofer trigger input and your subwoofer will power on and off with your A/V receiver or A/V preamp-processor. When the trigger is in the “off” mode the LED will turn off and the amplifier will be switched to a low power consumption standby mode.
TRIGGER![]()
0-180 PHASE CONTROL
This synchronizes the in/out movement of the subwoofer driver with the other speakers in your system. Once you have chosen the best location for your subwoofer, try flipping the phase switch between 0-180 to see which setting produces deeper and smoother bass output. Leave the switch at the setting that results in the smoothest and deepest ass at several listening locations in the room. If you hear no difference, leave the switch at the 0 positions. Quite often this switch makes little difference, but it is dependent on your particular room dimensions and subwoofer location.
PHASE 0
180
POWER SWITCH
The POWER ON switch near the bottom of the panel supplies power to the sub amplifier. When this switch is in the ON position, the subwoofer will remain on, and the LED
an indicator will be illuminated.
ROOM POSITION
The placement of your subwoofer can add a significant difference to the performance of your home theater system. Low frequencies are omnidirectional, but best performance results if you place the subwoofer in the corner, as this will increase the level of bass output. You can experiment with different configurations, or even add multiple subwoofers
to your system (see diagram).
NOTE: When cleaning your subwoofer, avoid the use of abrasives, solvents, or harsh detergents. Windsor subwoofers have a long-lastingvinyl finish that should only require using or cleaning with a dry cloth. Gently use the brush attachment of your vacuum cleaner to remove any dust or particles from the surfaces of your subwoofer.
WARRANTY
Our 5-year warranty begins from the purchase date of the item. (Receipt Date) Warranty registration must be completed at KLHAUDIO.com/warranty. Registration of the product must be completed within 120 days of purchase for warranty validation. Original receipt of purchase must be retained for proof of purchase. For warranty or service issues, please contact the authorized KLH dealer. The warranty covers any production and/ or material defects of the product. This warranty is non-transferable. The following is NOT COVERED by the warranty:
1. Accidents, misuse, poor maintenance, electrical overloads such as lightning or voltage.
2. Incorrect use of the product.
3. Altered serial number.
4. Transportation costs for service calls.
5. Purchase of KLH products from an unauthorized reseller.
The replacement item cannot exceed the cost of the item under warranty. The supplier is responsible for only repair or replacement. KLH toll-free number is 1-833-554-8326
SPECIFICATIONS
Stratton 10 Powered Subwoofer
| Frequency response | 29Hz-150Hz |
| Maximum Output | 114dB. |
| Class “D” Digital Amplifier | 200W rms/400W Dynamic Power |
| Components | 10” Driver, Proprietary Blend of Treated Paper, Kevlar® and CSX |
| Enclosure Material | 3 /4 ” MDF |
| Enclosure Type | Rear Slot Ported Bass Reflex |
| Inputs | Line Level/LFE Gold Plated RCA Jack |
| Dimensions | 15.3” H x 17.72” W x 15.2” D (388mm H x 325mm W x 385mm D) |
| Weight | 32 lbs. (14.55kg) |
| Finish | Carbon black |
| Features | Volume, Lowpass, Phase, Trigger |
| Phase | Switchable 0-180 degrees |
| Power Rating | 100-120V~/220-240V~ 50Hz/60Hz |
Stratton 12 Powered Subwoofer
| Frequency response | 25Hz-160Hz |
| Maximum Output | 118dB. |
| Class “D” Digital Amplifier | 200W RMS/500W Dynamic Power |
| Components | 12” Driver, Proprietary Blend of Treated Paper, Kevlar® and CSX |
| Enclosure Material | 3/4 ” MDF |
| Enclosure Type | Rear Slot Ported Bass Reflex |
| Inputs | Line Level/LFE Gold Plated RCA Jack |
| Dimensions | 17.7” H x 15.4” W x 18.2” D (448mm H x 390mm W x 462mm D) |
| Weight | 44lbs(20kg) |
| Finish | Carbon black |
| Features | Volume, Lowpass, Phase, Trigger |
| Phase | Switchable 0-180 degrees |
| Power Rating | 100-120V~/220-240V~ 50Hz/60Hz |
BACK PANEL
984 Logan Street, Suite 301
Noblesville, IN 46060
klhaudio.com


















