User manual ROLAND AC-60

[. . . ] Owner's Manual Thank you, and congratulations on your choice of the Roland AC-60 Acoustic Chorus. Before using this unit, carefully read the sections entitled: · IMPORTANT SAFETY INSTRUCTIONS (page 2) · USING THE UNIT SAFELY (page 3­4) · IMPORTANT NOTES (page 5) These sections provide important information concerning the proper operation of the unit. Additionally, in order to feel assured that you have gained a good grasp of every feature provided by your new unit, Owner's manual should be read in its entirety. The manual should be saved and kept on hand as a convenient reference. Contents IMPORTANT SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] * To protect the circuitry, all output is muted momentarily after the PHANTOM switch is turned on or off. * Phantom power is supplied only to the XLR connectors for the MIC/LINE channel INPUT. * Noise may be produced if connectors are connected or disconnected while the phantom power is turned on. 2. PICKUP button This switches the input circuitry for either piezo or magnetic pickups, according to the type of pickup on the connected guitar. Press down the button for magnetic pickups. * Set this to MAGNETIC if your guitar has an active pickup equipped with a preamp. 7 Names of Things and What They Do Phantom Power Because they have a comparatively wider range and better sound quality than dynamic mics, condenser mics are often used for miking acoustic guitars. However, they require a power source to operate. Although some condenser mics run off batteries placed within the mic housing, in many cases a type of power supply known as "phantom power" is required. This power supply uses the existing mic cable to feed power. The AC-60's phantom power is output at a constant 48 V, so it conforms to professional specifications required at recording studios. 9. TREBLE knob This adjusts the level of the high-frequency range. Turning the knob to the right emphasizes brushing sound when chords are stroked. The tone of acoustic instruments varies immensely from one instrument to the next. The kind of sound required also varies according to how an instrument is being used in a particular ensemble. Actively use the BASS, MIDDLE, and TREBLE knobs to adjust the tone to suit the instrument you are using and the conditions in which it is being used. (Example) · When using the AC-60 with the speaker stand attached, you may want to turn up the BASS knob so the lower range is perceived better. · If the sound seems too harsh, such as immediately after changing strings, you may want to turn down the TREBLE knob to cut back on the high frequencies. 5. SELECT button This switches the input level to match that of the connected device (mic or line). You can connect guitars with magnetic pickups when LINE is selected with the SELECT button. * Note that the volume is increased if the switch is set to "MIC" when you have a line-level device connected. 10. CHORUS button This turns the chorus on and off. The indicator lights up when this is on. 6. VOLUME knob * When using the AC-60 with the GUITAR channel and MIC/ LINE channel mixed, adjust the volume balance between the two channels with the VOLUME knob. (GUITAR CHANNEL) This adjusts the volume of the GUITAR channel. [. . . ] 1. k. l 107 564 Moscow, RUSSIA TEL: (095) 169 5043 SAUDI ARABIA aDawliah Universal Electronics APL Corniche Road, Aldossary Bldg. , 1st Floor, Alkhobar, SAUDI ARABIA P. O. Box 2154, Alkhobar 31952 SAUDI ARABIA TEL: (03) 898 2081 BELGIUM/HOLLAND/ LUXEMBOURG Roland Benelux N. V. Houtstraat 3, B-2260, Oevel (Westerlo) BELGIUM TEL: (014) 575811 SPAIN Roland Electronics de España, S. A. Calle Bolivia 239, 08020 Barcelona, SPAIN TEL: (93) 308 1000 SYRIA Technical Light & Sound Center Khaled Ebn Al Walid St. 47, P. O. BOX 13520, Damascus, SYRIA TEL: (011) 223-5384 Roland Shanghai Electronics Co. , Ltd. [. . . ]