Service, Cabinet Finish Care, Grille | Thiel Audio Products CS7.2

connected to another room by a large open area, the required power will increase—but not by the amount of the combined room volume. If the room has a “dropped” ceiling with lightweight panels, the ceiling will be almost transparent acoustically. In this case the space above the ceiling should be added. If the panels are heavy they will act more like a solid ceiling.

With all this in mind, a person who likes to play music only at lower levels, has a small room, and who has

fairly efficient speakers can get the performance desired with only 20 watts; whereas, a person who sometimes likes to play loudly, has low efficiency speakers, and a large room may need 300 watts.

It is important to have enough power to play at the volume level you desire without distortion. If you play the speakers more loudly than the volume the amplifier can cleanly produce, the amplifier will produce overload (clipping) distortion. The sound will become compressed, strained, and in extreme cases, obviously distorted. This distortion is actually non-musical additional energy and since it is concentrated in the high frequency region where the speaker is least able to handle it, the tweeter’s voice coil can be burned in extreme cases. Driver damage in general is usually the result of having inadequate power rather than having too much. If your system does not play as loudly as you would like without becoming distorted, you need a more powerful amplifier.

Remember that how loud your system plays has nothing to do with the position of your volume knob. Source components such as CD players and tape decks, as well as recordings themselves, can all have different output levels. This means that to achieve the same volume level for each source, your preamp’s volume control may need to be set at a different position for each source. For example, when some high output CD players are used with lower power amplifiers, clipping can be reached with a volume knob setting as low as 4 on a scale of 10.

SERVICE

If your CS7.2s require service, please contact your authorized THIEL dealer. Factory service information and technical support is available by calling 606/254-9427, Monday–Friday, 8:30 a.m.– 5:00 p.m. Eastern Time. Our service e-mail address is service@thielaudio.com.

CABINET FINISH CARE

THIEL wood cabinets possess a high quality lacquer finish that is both beautiful and durable. However, any wood finish can be damaged by excessive moisture, dryness, or direct sunlight. When cleaning your speakers, avoid using oils, waxes, or polishes that contain silicone, such as Pledge

or Johnson’s. We recommend using Endust. Non-wood laminate cabinets may be cleaned with a glass-type cleaner and a soft cloth.

GRILLE

The CS7.2 grille is designed to not produce diffraction so there is no sonic reason to remove it. If you do need to remove the grille, pull the bottom of the grille frame away from the speaker an inch or so and then lift the grille upward to remove it. When replacing the grille, first push the top down onto the baffle and then push the bottom back.

The grilles can be cleaned of dust by using an upholstery attachment of a vacuum cleaner. To prevent damage to the tweeter, take care not to push the cloth in toward the top of the grille.