Aanalog and digital systems HT10ps, C12ps, HT12ps, C10ps User Manual

analog and digital systems

C10ps C12ps HT10ps HT12ps

owner's manual

table of contents

introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

about the a/d/s/ subwoofers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

system connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

power connection and power switch operation . . . . . . . . . . . . . . . . . . . . . . . . . .8

controls and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

voltage conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

in case of difficulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

typical wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

common specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

introduction

Congratulations, and thank you for purchasing an a/d/s/ powered subwoofer. The culmination of years of acoustic research, these subwoofers are designed to flawlessly reproduce the lowest octaves of music and to add incredible impact and realism to movie soundtracks, while perfectly complimenting a/d/s C-series and H-series loudspeakers. Please read this manual carefully to fully understand and maximize the performance of your a/d/s system, and to enjoy years of superb musical and home theater sound reproduction.

Be sure to save your sales receipt. It is your best record of the date of purchase, which is required for warranty service.

Read and follow all cautions, warnings and notes.

cautions

WARNING To reduce the risk of electric shock, do not remove any parts of the speaker. There are no user serviceable parts inside. If service is required have it performed by a qualified service professional.

WARNING To help prevent electric shock, connect the speaker using the power cable into properly grounded electrical outlets. These cables are equipped with 3-prong plugs to help ensure proper grounding. Do not use adapter plugs or remove the grounding prong from a cable.

WARNING To help prevent fire or shock hazard, do not expose the speakers to rain or submerge in water. The speakers should be situated away from heat sources such as radiators, heat registers, stoves or other heat sources. Be sure all the components in the system are turned off while making audio and power connections.

about the a/d/s/ subwoofers

This manual covers four a/d/s/ powered subwoofer models. The C10ps and the C12ps use 10 and 12-inch subwoofers in sealed enclosures. The HT10ps and the HT12ps also use 10 and 12-inch drivers respectively, and feature precision-tuned bandpass enclosures for enhanced low-frequency performance. The C-series subwoofers have an attractive black matte finish that blends well into most decors. The HT-series subwoofers feature a black wood grain furniture grade finish.

These subwoofers are designed to be used with in-wall, bookshelf, or miniature satellite loudspeakers, extending the bass response of the system by an octave or more. The crossovers in the subwoofers can relieve the satellite speakers of the demand of reproducing the deep bass portion of the sound range. The combination of an a/d/s/ subwoofer and high-quality full range speakers produces a system that has the bass response and output level of much larger loudspeakers, in a compact, easy to place format.

The subwoofers can be driven by either preamp level or speaker level input signals. They can be connected to nearly any audio system.

The amplifiers in these subwoofers are capable of producing very high peak current levels. Sophisticated protection circuitry protects the amplifier and woofer if the subwoofer is operated in a manner that might cause damage. In addition, the amplifiers feature an array of controls that make it easy to adjust the subwoofer so it integrates seamlessly with the main speakers in the system.

The HT-series a/d/s/ subwoofer cabinets have a sophisticated tuned bandpass design. The speaker in the cabinet is mounted between two chambers. One chamber is sealed. The other is vented through special high flow tuned vents to the rear of the cabinet. This computer optimized hybrid design gives the transient response of a simple sealed box system with the efficiency and power handling of a vented box design. The result is clean and dynamic bass at all listening levels.

The speakers in the a/d/s/ subwoofers have an oxygen-free copper wire voice coil wound on a Kapton former for maximum efficiency and fidelity. The cones are acoustically inert and capable of moving large volumes of air without flexing or bending.

unpacking

These subwoofers are fairly heavy. Rather than lifting the unit out of the shipping carton, turn the open carton over and lift it off of the subwoofer.

Set the carton on a carpeted floor (or a large pad) with the top up and open. Hold the top flaps down against the outside of the carton. Carefully tip the carton onto its side and then onto the open top of the carton. Hold the inner packing material in place while turning the carton over to prevent the subwoofer from slipping out of the carton. Lift the carton off of the subwoofer. Remove the inner packing material. Then gently turn the subwoofer over onto the base. Save the shipping carton and inner packing material for future use. Moving or shipping the subwoofer in anything other than the factory carton can result in costly damage, which is not covered by the warranty.

placement

Unlike higher frequency sound, our ears have difficulty locating the source of deep bass sound. Consequently, you have a fair amount of flexibility in where you place the subwoofer in your listening room. We recommend placing the subwoofer at the same end of the room as the main speakers. Avoid placing the subwoofer close to the main listening area or behind it.

The HT-series Subwoofer should be placed so its back is at least three inches away from the wall behind it and all adjacent furniture a drapery. This is necessary for three reasons. First, it allows the bass sound coming out of the ports to spread freely into the room. Second, it allows the amplifier to radiate the heat generated by normal operation. Third, it allows clearance for the cable connected to the subwoofer.

Included with the C-series subwoofers are a set of four spiked feet. Using these spiked feet will stabilize the subwoofer placement and may tighten up the subwoofer's sound. There are threaded inserts in the bottom of the cabinet for these spiked feet.

The sound quality of your a/d/s/ subwoofer and how its sound blends with the main speakers is affected by its location in the room and the settings of the rear panel controls. The bass output level of the subwoofer is greatly affected by its placement in the room. As a general rule the level will increase as the subwoofer is moved closer to the boundaries (the walls and corners) of the room. Corner placement will produce the strongest bass and in some instances the smoothest response. Experiment with a variety of placements that are practical and domestically acceptable. Try adjusting the settings of the subwoofer phase and subwoofer volume controls in each room location you try. The goal is a combination of placement and control settings that produces smooth solid bass that blends seamlessly with the main speakers.

One trick for achieving the desired bass performance in a given room is to locate the subwoofer at your normal seating/listening location. Then walk around the room while the system is playing. Look for a spot in the room that is suitable for the subwoofer and where the bass sounds the best to you. If you then place the subwoofer at that location, the bass response at your normal seating position will be the same.

Another consideration when selecting a location for the subwoofer is required audio signal and power wiring connections. Because long cable runs can degrade a sound signal, the subwoofer should not be too far away from the other components of the system. Plan for routing the connecting cables where they won't be stepped on or crushed.

The powerful bass sound energy produce by the a/d/s/ subwoofers can cause objects to vibrate or rattle. Setting a compact disc player on the subwoofer may result in tracking problems or data errors. Purely electronic equipment, such as amplifiers or receivers are not likely to be affected by the subwoofer. Never set up a turntable near the subwoofer. This can produce severe acoustic feedback.

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