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POWER AMPLIFIER

使用说明书

Owner’s Manual

EN

ZH

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Summary of Contents for KAX-2500

Page 1: ...POWER AMPLIFIER 使用说明书 Owner s Manual EN ZH ...

Page 2: ...d by the manufacturer 12 Use only with the cart stand tripod bracket or table spec ified by the manufacturer or sold with the apparatus When a cart is used use cau tion when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service person nel Servicing is r...

Page 3: ...d or places that receive direct sunlight Locations subject to excessive humidity or dust accumulation Do not place the power cord close to a heater It may melt causing fire or electrical shock Hold the power cord plug when disconnecting it from an AC out let Never pull the cord A damaged power cord is a potential fire and electrical shock hazard Do not touch the power plug with wet hands Doing so ...

Page 4: ...ers This applies only to products KAX 5000 distributed by YAMAHA CORPORATION OF AMERICA Connector pin assignments Interference from Cell Phones 1 IMPORTANT NOTICE DO NOT MODIFY THIS UNIT This product when installed as indicated in the instructions contained in this manual meets FCC requirements Modifications not expressly approved by Yamaha may void your authority granted by the FCC to use the pro...

Page 5: ... engages a high pass filter and SUBWOOFER engages a low pass filter With LOW CUT or SUBWOOFER selected you can adjust the cutoff frequency from 25 to 150 Hz Each channel has its own SIGNAL and CLIP indicators The PROTECTION indicator lights up and sound output is automatically muted whenever the unit s protective circuitry is operating The TEMP indicator lights up if the unit is running hot Variab...

Page 6: ...p green when the corresponding channel s output level exceeds 2 Vrms equivalent to 1 2 W into an 8 Ω load or 1 W into a 4 Ω load 6 Volume control knobs Each control knob adjusts the volume of the corresponding channel in 31 steps from dB to 0 dB NOTE If you wish to lock in the knob settings you can fasten the sup plied security cover over the knobs so that the settings will not be disturbed How to...

Page 7: ... A are effective The Channel B frequency controls are disabled 2 ON OFF switch If you set this switch ON the amplifier adds low frequency compensation so as to enhance speaker output The results the actual change in the low frequency balance will vary accord ing to the speaker type Note that this switch is effective only if the FILTER switch is set to OFF 3 INPUT jacks Channels A B Two jack types ...

Page 8: ...B input jacks do not function Channel A and B volumes can be independently adjusted BRIDGE mode The Channel A input signal is output from the BRIDGE output jacks To adjust the volume you must use the Channel A vol ume control knob 5 SPEAKER jacks Neutrik NL4FC Speakon output connectors 5 way binding post output jacks Phone output jacks For minimum speaker impedenance values see page 9 6 GND termin...

Page 9: ...nding post output jacks When using Speakon connector When using phone jack Connection configurations for BRIDGE mode When using 5 way binding post output jacks When using Speakon connector BRIDGE 1 1 STEREO BRIDGE PARALLEL STEREO BRIDGE PARALLEL or Minimum speaker impedance 4 Ω Minimum speaker impedance 4 Ω SPEAKERS 1 1 2 2 1 1 2 3 3 2 LOCK LOCK Minimum speaker impedance 4 Ω SPEAKERS 1 1 2 2 1 1 2...

Page 10: ... not jut out from the ter minals and touch the chassis The following shows how the cable should look when correctly attached 4 Reattach the protective cover over the speaker terminals Speakon connector 1 Turn off the POWER switch 2 Insert the Neutrik NL4FC plugs into the Speakon connec tor on the rear of the amplifier and turn clockwise to lock Neutrik NL4FC plugs Phone jack 1 Turn off the POWER s...

Page 11: ...tands for Electronic Industries Alliance Ventilation panel s Use 1U size blank panel s If mounting up to four amplifiers in an open backed rack Install a ventilation panel as shown below When mounting five or more amplifi ers in an open backed rack and when mounting any number of amplifiers in a close backed rack Install ventilation panels above and below each amplifier as shown below 480 44 Unit ...

Page 12: ... 1 60 Hz 7 kHz 4 1 Half Power 8 Ω BRIDGE Channel Separation Half Power RL 8 Ω 1 kHz 70 dB Vol max input 600 Ω shunt Residual Noise Vol min 20 Hz 20 kHz DIN AUDIO 70 dBu SN Ratio 20 Hz 20 kHz DIN AUDIO 103 dB 102 dB 100 dB Damping Factor RL 8 Ω 1 kHz 350 200 Sensitivity Vol max Rated Power 8 Ω 6 dBu 4 dBu 3 dBu Voltage Gain Vol max 32 1 dB Input Impedance 30 kΩ balanced 15 kΩ unbalanced Controls Fr...

Page 13: ...F CHANNEL A ATT OFF Limiter Limiter INV Temperature Sensor Heat Sink Protection Circuit CLIP CLIP Ach Power Amp Bch Power Amp SIGNAL PROTECTION TEMP SPEAKERS CHANNEL A 3 3 1 1 2 2 1 1 1 1 2 2 2 2 A B BRIDGE CHANNEL B SIGNAL YAMAHA SPEAKER PROCESSING CHANNEL B ATT PARALLEL BRIDGE STEREO HPF Frequency 25 Hz 150 Hz POWER FAN B E B 24 24 E POWER CIRCUIT Frequency 25 Hz 150 Hz OFF LPF POWER SW ...

Page 14: ... 126 4Ω ch 6 2 3 4 436 188 249 848 214 1 3 power 8Ω ch 9 3 5 1 673 350 323 1100 278 4Ω ch 14 7 8 1 1057 500 557 1900 479 Line Current A Power W Thermal Dissipation 100 120V 230 240V In Out Dissipated Btu h kcal h standby 0 08 0 04 5 0 5 17 4 idle 1 0 0 5 30 0 30 102 26 1 8 power 8Ω ch 3 2 1 7 227 98 130 443 112 4Ω ch 5 0 2 8 378 148 231 787 198 1 3 power 8Ω ch 7 3 4 0 551 260 291 993 250 4Ω ch 12 ...

Page 15: ...r wire Locate and correct the cause of the short The PC limiter circuit operates to protect the power transistors The amplifier load is excessive Use a speaker system with an impedance of at least 4 Ω STEREO PARALLEL mode or 8 Ω BRIDGE mode TEMP indicator lights The heat sink temperature has exceeded 85 C 185 F Check the ventilation slots and provide better airflow around the amplifier The TEMP in...

Page 16: ...28 2160 SWEDEN FINLAND ICELAND Yamaha Music Europe GmbH Germany filial Scandinavia J A Wettergrens Gata 1 Box 30053 S 400 43 Göteborg Sweden Tel 031 89 34 00 DENMARK Yamaha Music Europe GmbH Tyskland filial Denmark Generatorvej 6A DK 2730 Herlev Denmark Tel 44 92 49 00 NORWAY Yamaha Music Europe GmbH Germany Norwegian Branch Grini Næringspark 1 N 1345 Østerås Norway Tel 67 16 77 70 RUSSIA Yamaha M...

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