User manual YAMAHA B-4

[. . . ] Cable/s supplied with this product MUST be used. Failure to follow instructions could void your FCC authorization to use this product in the USA. * This applies only to products (XP7000, XP5000) distributed by YAMAHA CORPORATION OF AMERICA. (oscillator) Explanation of Graphical Symbols CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). [. . . ] The XP Series of power amplifiers was developed from Yamaha's wealth of experience in building PA equipment and its tradition of careful attention to every detail of circuit design. These power amplifiers feature high power -- thanks to EEEngine (Energy Efficient Engine) technology -- and superb quality together with superior reliability and stability, guaranteeing the highest possible audio performance. Main features include · Three modes are provided to support a broad range of applications: STEREO mode which can be driven by two independent sources, PARALLEL mode in which a monaural source drives both channels, and BRIDGE mode in which the two internal amps function as a single high-power mono amp. · Balanced XLR connector and Euroblock connector inputs, and Speakon connector and five-way binding post outputs are provided. · A high pass filter switch that enables selection of the cutoff frequency (20Hz or 55Hz). · Signal indicator, clip indicator and sophisticated dB step Volume control are provided for each channel. · A PROTECTION indicator that shows the state of various protection systems (power on/off detection, output protection, DC detection), a TEMP indicator that indicates heat sink overheating, and a POWER/STANDBY indicator that indicates the power status. · Variable-speed low-noise fans ensure high reliability. · The XP7000 enables parallel connection of multiple high-impedance speakers that support 70V line output. · The XP3500 enables parallel connection of multiple high-impedance speakers that support 100 V line output. · A MONITOR/REMOTE terminal that allows monitoring or control over the amplifier via a network. This Owner's Manual applies to the XP7000, XP5000, XP3500, XP2500, XP1000 power amplifier. In this case, loads are automatically connected between the A and B input terminals. · BRIDGED mode In BRIDGED mode, channels A and B operate simultaneously, functioning as a single mono amplifier. Note: When in PARALLEL and BRIDGED modes, input terminals A and B are shorted automatically. Make sure not to input an audio signal to an inactive input terminal. 2 Euroblock connectors These balanced Euroblock connectors are used to connect input signals. 6 MONITOR/REMOTE terminals This terminal is used to connect the external device for monitoring or remote control. Refer to "MONITOR/ REMOTE PIN layout" on page 15. 3 HPF switches These switches are used to turn on and off the HPF (High Pass Filter) for each channel. When this is set to 20Hz or 55Hz, frequencies below the respective settings are filtered using a 12 dB/octave high pass filter. 7 SPEAKERS terminals 1: These 5-way binding posts are used to connect speakers. Speakon type cable plugs can be connected here. 4 GAIN switch This switch is used when changing the Gain of the A and B channels simultaneously. · +4dBu: The maximum output power can be obtained when +4dBu is input. · 26dB: Setting of 26dB · 32dB: Setting of 32dB 8 GND terminal If you are having a problem with hum or noise, use this terminal to connect to ground (earth) or to connect to the chassis of a mixer, preamp, or other device in your system. XP7000/XP5000/XP3500/XP2500/XP1000 Owner's Manual 7 Speaker Connections Speakers can be connected to the amplifier in three ways, as shown below. Note that speaker impedance will vary according to the connection method and the number of speakers. Please be sure that your speaker's impedance is not less than the relevant minimum value indicated below. Stereo Mode Set the Mode switch to STEREO to use the unit as a stereo amplifier. The volume controls on the front panel (A and B) let you control the volume of each channel independently. 5-way binding post Speakon connector ­ + + ­ 4* 4* 4* 4* * Minimum speaker impedance * Minimum speaker impedance Parallel Mode Set the Mode switch to PARALLEL to use the unit as a two-channnel mono amplifier. [. . . ] 1/3 power represents program material with extremely heavy clipping. Test signal: Pink Noise, bandwidth limited from 22Hz to 22kHz 1W = 0. 860kcal/h, 1BTU = 0. 252kcal Note that Line Voltage [V] x Line Current [A] = [VA], not equals to [W]. Inrush current XP7000, XP5000: XP3500: XP2500: XP1000: 11A (100V), 13A (120V), 25A (240V) 11A (100V), 13A (120V), 22A (240V) 10A (100V), 12A (120V), 20A (240V) 9A (100V), 11A (120V), 14A (240V) 18 XP7000/XP5000/XP3500/XP2500/XP1000 Owner's Manual For details of products, please contact your nearest Yamaha representative or the authorized distributor listed below. Pour plus de détails sur les produits, veuillez-vous adresser à Yamaha ou au distributeur le plus proche de vous figurant dans la liste suivante. Die Einzelheiten zu Produkten sind bei Ihrer unten aufgeführten Niederlassung und bei Yamaha Vertragshändlern in den jeweiligen Bestimmungsländern erhältlich. [. . . ]