Summary of XM4220
Page 1
Power amplifier xm6150 xm4220 owner’s manual e.
Page 2: Introduction
2 introduction thank you for purchasing a yamaha 6150, or 4220 xm series power amplifier. The xm 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 featu...
Page 3: Precautions
3 precautions contents controls and functions ............................................. 4 front panel .......................................................... 4 rear panel ........................................................... 5 connection ....................................................
Page 4: Controls and Functions
4 controls and functions ■ front panel 1 power switch and indicator this is the main power switch. Press to turn on the amplifier. Press it again to turn off. The power indicator lights up when the amplifier it turned on. 2 protection indicator when the protection system is active, the protec- tion ...
Page 5: ■ Rear Panel
5 ■ rear panel 1 hpf switches these switches are used to turn on and off the hpf (high pass filter) for each channel. When set to on, frequencies below 80 hz are filtered using a 12 db/ octave high pass filter. Turn this switch on if 70v-line, high-impedance speakers are connected. In bridge mode, o...
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6 7 gnd terminals this is the grounding screw terminal. If hum or noise occurs, ground (earth) the unit via this jack, or try connecting it to the chassis of the mixer or preamp, etc. 8 speaker outputs these 5-way binding posts are used to connector speakers. The following illustrations show how spe...
Page 7: Connection
7 connection ■ using a euroblock connector 1. If the wire insertion ports are closed, turn the screws on top of the connector counterclockwise to open the ports. 2. Insert the wires into the appropriate ports, following the indication of the pole on the input terminal, turn the screws on top of the ...
Page 8: Air Flow
8 air flow this unit uses a forced cooling system in which air comes in through the front opening and goes out the sides and rear. 4-6.5 x 1 1 88 463 480 unit : mm 248 4-c15 4-ø4.5 76.2 71.5 ± 0.1 71.5 ± 0.1 78 78 fan kit ventilation panel xm6150/4220 xm6150/4220 rack mounting if multiple high-power...
Page 9: Specifications
9 specifications ■ general specifications xm6150 xm4220 power output level (rated power) 8 Ω 100 w x 6 140 w x 4 20 hz~20 khz 4 Ω 120 w x 6 180 w x 4 thd+n= 0.2% 8 Ω /bridge 240 w x 3 360 w x 2 1 khz 8 Ω 120 w x 6 170 w x 4 thd+n= 0.2% 4 Ω 150 w x 6 220 w x 4 8 Ω /bridge 300 w x 3 440 w x 2 70.7v/br...
Page 10: ■ Block Diagram
10 ■ block diagram note: the block diagram indicated in the dotted frame ( ) applies only to model xm6150
Page 11: ■ Dimensions
11 ■ dimensions unit: mm d: 319 w: 480 h: 132.
Page 12: Troubleshooting
12 troubleshooting the following table lists the main causes of abnormal operation and the corrective measures required as well as the protective circuit operation in each case. Protection circuit remedy possible cause indicator clip indicator lights up protection indicator lights up there is a shor...
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Yamaha corporation v455890 r0 1 ap 16 pro audio division, #18/3 p.O. Box 3, hamamatsu, 430-8651, japan np printed in taiwan.