Yamaha IF2112 manual Recommended Amplifier, Terminology used in the table

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Application Guide for

Yamaha Installation Series Speakers

Recommended Amplifier

Although there is no single correct answer to the question of which amplifier to select, we can offer some simple suggestions. The table in the following pages shows two different options and gives recommended power ratings along with examples of possible choices of models. One option is to maximize speaker performance, giving priority to sound quality, while the other gives priority to using your speakers in a safe manner. The former will give better sound, but increases the risk of speaker damage from signals received in an uncontrolled environment. The latter may increase the probability of signals from the amplifier being clipped. But if you can ensure the signals from the amplifier will not be clipped, it reduces the chance of damage to your speakers.

Although the table in the following pages shows only recommended values for matching speakers and amplifiers, you should also consider the sound pressure level needed when selecting an amplifier. Lower sound pressure level requirements allow you to use amplifiers with lower power ratings. Using identical amplifiers can be beneficial as it allows for greater sonic consistency, and can simplify maintenance and inventory. When using multiple loudspeaker types simultaneously, or driving speakers in bi-amp or tri-amp mode, you may be using power amplifier channels with higher power ratings than required (i.e. unusued headroom). However, when the HF is driven by the same amplifier as the LF, you must take precautions to prevent excessive power reaching the driver(s). Therefore, in order to avoid damage , you should set an appropriate attenuation level and limiter level.

Regardless of which of the above options you select, it is impossible to eliminate the possibility of speaker damage caused by factors such as microphone feedback, aggressive EQ, continuously clipped signals from amplifiers, processors, and mixers, and sine waves played back for extensive lengths of time. As such the recommendations listed here are not a guarantee of trouble-free operation.

<Terminology used in the table>

Rcmd Pwr: The recommended power ratings of the amplifier.

(A)Amp: An amplifier recommendation for maximizing speaker performance when in a well-controlled environment.

(B)Amp: An amplifier recommendation for using speakers safely when in an environment where there is a high probability of excessive signal input.

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Application Guide For Yamaha Installation Series Speakers Yamaha CorporationTable of Contents Introduction Speaker Layout Speaker System Overview Small Installation Simple Center ClusterApplications System Diagram SP2060 Configuration ExampleSmall Installation Left/Right Cluster + Mono Sub System Diagram Small Installation 5.1ch Surround DME Configuration Example Small Installation High Ceiling Distributed System System Diagram Medium Installation House of Worship System Diagram Medium Installation Cruciform Shaped House of worship Application Guide for Medium Installation Fan Shaped #1 System Diagram Medium Installation Fan Shaped #2 System Diagram Medium Installation Dance Club System Diagram DME configuration example Large Installation House of Worship System Diagram Large Installation Theater System Diagram DME Configuration Example Mounting Brackets M10 Shoulder Eye-boltsBracket Horizontal Array FrameConnector Pinout Guide Yamaha Sound System Simulator Y-S3 CLF Viewer CLF viewerRecommended Amplifier Terminology used in the tableWay Full-Range Speaker Passive Bi-AmpAmp XP1000 1ch XM4080 1ch Subwoofer MFTri-Amp / MF+HFBi-AMP HF Tri-AmpRecommended Limiter Setting Amp Passive Bi-Amp Gain IF2205 26dB 8dBu IS1118 26dB 14dBu DME configuration guide Fig. a General output processing functionsFig. C Simplified configuration in DME Power Amplifiers Yamaha Power Amplifier Line upXM Series 4ch Models Signal Processors Speaker Processor