[. . . ] 35 mm or more Caution · The required length of a screw differs depending on the mounting bracket to Read this before using the speaker. · To assure the finest performance, please read this manual carefully. [. . . ] · When choosing a power amplifier for use with this device, make sure that the output power of the amplifier is lower than the power capacity of this device. Even if the output power of the amplifier is lower than the power capacity of this device (program), use of excessive input signals resulting clipping may cause damage to the device. Malfunction or fire may occur especially when the following sounds or noises are generated: ­ feedback, when using a microphone ­ continuous and extreme volume sound from a musical instrument ­ extreme continuous distorted sound ­ noise caused by plugging/unplugging the cable while the amplifier is turned on · Secure placement or installation is the owner's responsibility. Yamaha shall not be liable for any accident caused by improper placement or installation of the speaker. be used. Select a screw which is suitable for use with the mounting bracket and can be fully inserted into the hole on the speaker. · As this product is heavy, do not attach them to thin plywoods or soft wall surface materials, as the screws may tear free from flimsy surfaces, causing the speakers to fall and be damaged, or result in personal injury. · Do not fasten the speakers to the ceiling with nails, adhesives, or other unsound hardware. · To avoid accidents resulting from tripping over loose speaker cables, fix these to the wall along with the speakers. REMOVING THE FRONT COVER 1 Remove the screws (4 pieces) from both sides (figure 1). 2 Grasp the front cover with your fingers with your thumbs at the top edge of the main unit, then gently push with your thumbs (figure 2) to pry the cover loose. The 4 pegs inside the cover should be set in the corresponding holes on the speaker. Note Be careful not to scratch yourself with the edge of the front cover. 3 CONNECTING TO YOUR AMPLIFIER Caution BEFORE MAKING CONNECTIONS, MAKE SURE THAT THE AMPLIFIER IS SWITCHED OFF. [. . . ] 452 × 259 × 284 mm Weight <KMS-910> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12. 2 kg <KMS-710> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 kg · Specifications are subject to change without notice due to product improvements. · Care should be taken not to exceed the input power values noted above. · The woofer employs a material for the surround to achieve high sound quality. [. . . ]