User manual YAMAHA S12 S22

[. . . ] 3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Precautions AVOID EXCESSIVE HEAT, HUMIDITY, DUST AND VIBRATION When choosing a location for your speakers, avoid the following: · Direct sunlight, high temperatures (such as near heaters), or excessively low temperatures. · Areas subject to excessive dust accumulation and vibration. [. . . ] · Areas subject to excessive dust accumulation and vibration. · Non-level or unstable surfaces. To protect your speakers When choosing a power amplifier to use with your speakers, make sure that its power output matches the speakers' power capacity (refer to the Specifications on page 4). Even if the amplifier's power output is lower than the speakers' PGM (program) power capacity, the speakers may be damaged when clipping of a high input signal occurs. The following may cause damage to speakers: · Feedback caused when using a microphone. · Continuous high sound pressure level produced by HOW TO POWER UP YOUR SOUND SYSTEM To avoid damage to your speakers and other parts of your system, when you turn on your system, ALWAYS turn the power amp on last!This will avoid loud, damaging pops that will annoy your audience, and blow your speakers. When you power down, the amplifier should ALWAYS be turned off first to avoid the same problems. electronic instruments. · Tighten fastening screws securely. · Remove the speakers from the stands before moving the stands or adjusting their height. · Implement measures to prevent the speaker stands from falling over. · Use the stand at no higher than 150 cm for all speaker models. · The top tube of the TS-30 and TS-40 speaker stands has a diameter of 1-1/2", but is tapered to 1-3/8" at the top to fit in the mounting holes on the four models named. If you should remove the top tube from a stand, be sure to insert it with the narrow end up when reassembling. Connecting the Speakers CONNECTION EXAMPLE The illustration below shows audio connections for a standard setup using two speaker systems. DAISY-CHAINING SPEAKERS Since the speaker systems in this series are equipped with two input terminals that are internally connected in parallel, it is possible "daisy-chain" speakers by connecting the output from the power amplifier to one phone jack, and a second speaker system to the other. All speaker models in this series have a nominal impedance of 8. Since most power amplifiers are designed to provide stable performance at a load impedance of 4 or 8, Yamaha recommends that no more than two 8 speaker systems be daisy-chained together. [. . . ] If you should remove the top tube from a stand, be sure to insert it with the narrow end up when reassembling. Connecting the Speakers CONNECTION EXAMPLE The illustration below shows audio connections for a standard setup using two speaker systems. DAISY-CHAINING SPEAKERS Since the speaker systems in this series are equipped with two input terminals that are internally connected in parallel, it is possible "daisy-chain" speakers by connecting the output from the power amplifier to one phone jack, and a second speaker system to the other. All speaker models in this series have a nominal impedance of 8. Since most power amplifiers are designed to provide stable performance at a load impedance of 4 or 8, Yamaha recommends that no more than two 8 speaker systems be daisy-chained together. [. . . ]