User manual YAMAHA AX-870

[. . . ] AX -1070/870 Natural Sound Stereo Integrated Amplifier 145W + 145W (8) RMS Output Power, 0. 01% THD, 20­20, 000 Hz <AX-1070> 110W + 110W (8) RMS Output Power, 0. 015% THD, 20­20, 000 Hz <AX-870> Increased Low Impedance Drive Capability Continuously Variable Loudness Control PURE DIRECT Switch to Reproduce the Purest Source Sound SUBSONIC FILTER Switch to Cut Out Undesirable Ultra-Low-Frequency Signals PRE OUT/MAIN IN Terminals Useful for Connecting An Equalizer, Sound Processor, etc. Turnover Frequency Switch for Tone Controls <For AX-1070 only> High Quality Components Parts Remote Control Capability Thank you for selecting this YAMAHA stereo integrated amplifier. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN OWNER'S MANUAL CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK), NO USER-SERVICEABLE PARTS INSIDE, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CONTENTS Safety Instructions . . . . . . . . . . . . . . . . . . . 3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] If the connections are faulty, no sound will be heard from the speakers. Make sure that the polarity of the speaker wires is correct, that is, + and ­ markings are observed. If these wires are reversed, the sound will be unnatural and will lack bass. Do not let the bare speaker wires touch each other and do not let them touch the metal parts of this unit as this could damage this unit and/or speakers. q q q One or two speaker systems can be connected to this unit. If you connect only one speaker system, connect it to either the SPEAKERS A or B terminals. Use speakers with the specified impedance shown on the rear of this unit. Banana Plug connections are also possible (except for Scandinavian models). Simply insert the Banana Plug connector into the corresponding terminal. How to Connect: Red: positive (+) Black: negative (­) Unscrew the knob. Insert the bare wire. [Remove approx. 5mm (1/4") insulation from the speaker wires. ] Tighten the knob and secure the wire. ABOUT THE ACCESSORY TERMINALS AC OUTLETS (SWITCHED) (Europe and General models) . . . . . . . . . . . . 3 SWITCHED OUTLETS (Australia and U. K. models) . . . . . . . . . . . . . . . . . . 1 SWITCHED OUTLET Use these to connect the power cords from your components to this unit. The power to the SWITCHED outlets is controlled by this unit's POWER switch or the provided remote control transmitter's POWER key. These outlets will supply power to any component whenever this unit is turned on. The maximum power (total power consumption of components) that can be connected to the SWITCHED AC OUTLETS is 200 watts. PRE OUT/MAIN IN terminals Removing the jumper pins enables this unit to independently perform the functions of a control amplifier and a power amplifier. These terminals are for connection of a signalprocessing system such as a graphic equalizer or sound processor. If a sound processor or other component is connected, the VOLUME control of this unit can be used for overall adjustment of the level of sound. q VOLUME, BASS, TREBLE, BALANCE, LOUDNESS controls and PURE DIRECT switch settings have no effect on the material being recorded. 3 8 English REC OUT selector setting on tape dubbing <AX-1070> To dub from tape deck 1 to tape deck 2 or 3 (or both tape deck 2 and 3 at the same time) REC OUT 1 2/3 TAPE COPY 1/2 3 AUX CD TUNER PHONO <AX-870> To dub from tape deck 1 to tape deck 2 REC OUT 1 2 TAPE COPY 2 1 AUX CD TUNER PHONO To dub from tape deck 3 to tape deck 1 or 2 (or both tape deck 1 and 2 at the same time) REC OUT 1 2/3 TAPE COPY 1/2 3 AUX CD TUNER PHONO To dub from tape deck 2 to tape deck 1 AUX REC OUT 1 2 TAPE COPY 2 1 CD TUNER PHONO * Tape dubbing cannot be done from tape deck 2 to tape deck 1 or 3. OPEN/CLOSE THE CONTROL DOOR When it is not necessary to operate controls inside the control door, close the door. To close the door To open the door 9 Adjusting the BALANCE control Adjust the balance of the output volume to the left and right speakers to compensate for sound imbalance caused from speaker location or listening room conditions. BALANCE l 2 3 4 L5 5R 0 l 2 3 4 Selecting the SPEAKER system Because one or two speaker systems can be connected to this unit, the SPEAKERS switches allow you to select speaker system A or B, or both at once. SPEAKERS Adjusting the BASS and TREBLE controls BASS : Turn this clockwise to increase (or counterclockwise to decrease) the low frequency response. Adjusting the continuously variable LOUDNESS control This control provides compensation for the human ears' loss of sensitivity to high and low-frequency ranges at low volume. This control is adjustable to retain full tonal range at any volume level. TREBLE : Turn this clockwise to increase (or counterclockwise to decrease) the high frequency response. 1 LOUDNESS 0 9 Set to the "FLAT" position. BASS l 2 3 4 5 5 DEFEAT TREBLE l 2 3 4 2 3 4 5 5 4 DEFEAT 8 6 2 3 7 l l 2 Set to the loudest listening level that you would listen to. TURNOVER FREQUENCY switch <For AX-1070 only> These switches can be used to adjust the turnover point of the tone controls: either 200 Hz or 400 Hz for BASS and either 2. 5 kHz or 5 kHz for TREBLE. This gives you flexible control over bass and treble response characteristics. TURNOVER FREQUENCY 400Hz 2. 5kHz 3 LOUDNESS 0 200Hz 5kHz 9 8 6 7 Turn so that the desired volume can be achieved. 10 English Using the PURE DIRECT switch You can enjoy the purest possible sound from your audio sources by setting this switch so that the indicator illuminates. By doing so, the audio signal bypasses the BASS, TREBLE, BALANCE and LOUDNESS controls, the SUBSONIC FILTER switch and the PRE OUT/MAIN IN terminals, eliminating any alterations to the audio signal. Setting the PHONO switch Select either MM or MC position depending on your PHONO cartridge, Moving Magnet or Moving Coil type. However, if you use a high output MC cartridge, select MM position. PHONO MC PURE DIRECT MM Setting the SUBSONIC FILTER switch If you set this switch to "ON" position, undesirable ultra-lowfrequency signals caused by turntable rumble or warped records can be cut out without losing sound quality. Setting the MODE switch <For AX-1070 only> This switch can be used for switching between stereo and monaural operation. [. . . ] Set the LOUDNESS control to the FLAT position. First, turn the volume control to the full left. Then, turn the MUTING switch OFF with the remote control transmitter and adjust the volume. The PURE DIRECT switch must be switched OFF to use those controls. [. . . ]