DESCEND ™ Owner’s Manual DN8 and DN10 Subwoofers
Welcome Contents Thank you for choosing a Definitive Technology Descend subwoofer. To ensure that you experience the finest performance possible, we encourage you to take a moment to fully read this owner’s manual and familiarize yourself with the proper installation and setup procedures for your speaker. Enjoy! Safety Precautions........................................................3 Getting to Know Your Subwoofer...............................7 Getting Started.........................................
EN Safety Precautions CAUTION RISK OF ELECTRIC SHOCK! DO NOT OPEN! The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. 1.
Safety Precautions (continued) radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 19. Unplug the apparatus during lightning storms or when unused for long periods of time. 13. No naked flame sources, such as lighted candles, should be placed on the apparatus. 20. Refer all servicing to qualified personnel.
EN Safety Precautions (continued) 2. Important Notice: Do Not Modify This Product. This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modification not expressly approved by Sound United may void your authority, granted by the FCC, to use the product. 3. Notes This product has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FFC Rules.
Safety Precautions (continued) • Do not place objects filled with liquids, such as vases, on the unit. • Do not handle the mains cord with wet hands. • When the switch is in the OFF (STANDBY) position, the equipment is not completed switched off from MAINS. • The equipment shall be installed near the power supply so that the power supply is easily accessible. • Do not keep the battery in a place exposed to direct sunlight or in places with extremely high temperatures, such as near a heater.
EN Getting To Know Your Subwoofer Legend LEFT – + B A – + C RIGHT D A HIGH LEVEL INPUT LEFT/RIGHT (SPEAKER LEVEL IN) B VOLUME UP/DOWN KNOB C LOW PASS FILTER UP/DOWN KNOB D LFE IN E PHASE SWITCH (0 = DEFAULT) F STATUS LED G AC POWER VOLTAGE SELECTOR SWITCH H POWER ON/OFF SWITCH I FUSE ~100-120V T6.3AL/250V ~220240V T4AL/250V J AC POWER INLET 0 E 180 F G 100–120V | 220–240V I J H AC 100–120V -60Hz 3.3A(MAX) AC 220–240V -50Hz 1.
Getting Started 1. Make sure the amplifier is set to the correct voltage designated for your country. 2. Plug in the subwoofer to the wall outlet and power up the subwoofer using the power switch on the amplifier panel. 3. Set the volume to the half-way (12:00) position. 4. Set the low-pass control according to the chart on page 14 to start. 5. If you are using an audio processing unit that has a built-in room correction function, follow the instructions for that process. 6.
EN Positioning the Subwoofer There are some general guidelines that you should bear in mind when locating your subwoofer: Potential Subwoofer Locations 1. For best results, place the subwoofer on the same side of the room as your front speakers. TV Left Speaker Right Speaker Room Layout for Optimal Listening Experience 2. Placement near walls and in a corner will increase the subwoofer’s output, but the sound may be “muddy” or “boomy.” 3.
AC Mains (Power) Connection Note: Please ensure the voltage switch adheres to your regional guidelines. 100–120V / 220–240V The appropriate voltage for your unit is indicated here Before you plug in the Descend subwoofer, please make sure the voltage switch on the back of the subwoofer is set to your country’s voltage output. The voltage switch typically will not need to be changed unless you purchased your product from a different region than where you will be using it.
EN Connection and Setup There are two options for connecting your subwoofer, LFE INPUT and SPEAKER LEVEL IN: 1 LFE INPUT SETUP LFE IN This method is recommended for home theater systems with receivers or audio processors with built-in bass management. Anything that is attached to a receiver with bass management should have the low-pass filter turned off on the subwoofer by setting it to LFE on the digital display. 1. Power-off the amplifier/receiver and disconnect the subwoofer from the AC socket. 2.
Connection and Setup (continued) IMPORTANT NOTE: One terminal on each channel input is marked with a red band (+) and the other is marked with a black band (–). Make certain that you connect the wire from the red (+) terminal of your amplifier or receiver to the red (+) terminal of the subwoofer and the wire from the black (–) terminal of your amplifier or receiver to the black (–) terminal of the subwoofer.
EN Using and Adjusting the Descend Subwoofer Amplifier Controls Use the volume, phase and low-pass controls on the amplifier panel to optimize your sound experience. 1. Volume up/down control knobs: Increase/ decrease the subwoofer’s loudness. 2. Phase switch: Adjusts the relative phase of the output signal. Phase can be switched to either 0 or 180 degrees. 3. Low-pass filter up/down control knobs: The adjustable low-pass filter can be adjusted from 40 to 140 Hz. Adjusting the Sound 1.
Subwoofer Low-Pass Filter Guide MAIN FRONT SPEAKER TYPE SUGGESTED SETTINGS LARGE, FULL-RANGE FLOORSTANDING 40–80 HZ SMALL FLOORSTANDING AND LARGE BOOKSHELF 60–100 HZ SMALL BOOKSHELF/MINI-MONITORS/LARGE SATELLITES 80–120 HZ SMALL SATELLITES 100–140 HZ USING LFE FROM A RECEIVER OR PRE-AMP WITH INTERNAL BASS MANAGEMENT 150 HZ Specifications DN8 MODEL DN10 DIMENSIONS (W x D x H) (CABINET ONLY, NO BASE) 12.8 X 12.0 X 13.1 IN (324.8 X 305.8 X 331.6 MM) 16.8 X 16.0 X 17.1 IN (425.4 X 407.4 X 433.
EN Service Service and warranty work on your Definitive Technology loudspeaker will normally be performed by the Definitive Technology dealer or importer. If, however, you wish to return the speaker to us, please contact us first, describing the problem and requesting proper authorization. Note: Definitive phone and email technical support is only offered in English.
Limited Warranty 5-Years for Drivers and Cabinets, 3-Years for Electronic Components DEI Sales, Inc., dba Definitive Technology (herein “Definitive”), warrants to the original retail purchaser only that this Definitive loudspeaker product (the “Product”) will be free from defects in material and workmanship for a period of five (5) years covering the drivers and cabinets and three (3) years for the electronic components from the date of the original purchase from a Definitive Authorized Dealer.
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