Roland SA-300 инструкция обслуживания

IMPORTANT SAFETY INSTRUCTIONS ............................ 2 USING THE UNIT SAFELY ................................................ 3 IMPORTANT NOTES .......................................................... 6 Main Features .................................................................... 7 Names of Things and What They Do .....................[...]

2 IMPORTANT SAFETY INSTRUCTIONS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION : RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR 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. The lightning flash with arrowhead symbol, within an equilater[...]

3 USING THE UNIT SAFELY 001 • Before using this unit, make sure to read the instructions below, and the Owner’s Manual. .......................................................................................................... 001-50 • Connect mains plug of this model to a mains socket outlet with a protective earthing connection. ...........[...]

4 012a • Immediately turn the power off, remove the power cord from the outlet, and request servicing by your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the “Information” sheet when: • The power-supply cord, or the plug has been damaged; or • If smoke or unusual odor occurs • Objects h[...]

5 Placement 351 • Using the unit near power amplifiers (or other equipment containing large power transformers) may induce hum. To alleviate the problem, change the orientation of this unit; or move it farther away from the source of inter- ference. 352a • This device may interfere with radio and television reception. Do not use this device in [...]

6 IMPORTANT NOTES 291b In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on pages 3 and 5, please read and observe the following: Power Supply 301 • Do not connect this unit to same electrical outlet that is being used by an electrical appliance that is controlled by an inverter (such as a r[...]

7 Main Features The SA-300 is a lightweight yet powerful stage amp, which functions as a combo amp while featuring full 2.1-channel stereo compatibility. High Power This combo amp has an output of 350 W (75 W + 75 W stereo, 200 W subwoofer). 4-Channel/Full Stereo Input Compatibility The SA-300 features four input channels, all of which handle stere[...]

8 Names of Things and What They Do Control Panel fig.01-01 1. INPUT SELECT Button Use this button to select MIC or LINE input. This switches the input to match the connected device (mic or line-level device). The MIC indicator lights when MIC is selected; when LINE is selected, the LINE indicator lights. 2. VOICE ENHANCER Button (CH 1, CH 2) This s[...]

9 Names of Things and What They Do 7. LOW BOOST Button This switches the low boost effect on and off. When this is switched on, the low-frequency range is boosted. 8. WIDE Button This switches the wide effect on and off. When this is switched on, the sonic image extends beyond the SA-300’s speakers, providing an effect that seems to envelop the l[...]

10 Names of Things and What They Do Jack Panel fig.01-02 1. MIC Jack Connect a microphone here. For balanced input, you can connect to the TRS 1/4-inch phone jacks and XLR type connector. fig.01-03 2. PHANTOM Switch (CH 3, CH 4) This switches the phantom power on and off. When connecting a microphone that requires phantom power (such as condenser m[...]

11 Names of Things and What They Do 4. ANTI-FEEDBACK SWEEP Jack You can connect a momentary-type foot switch (optional BOSS FS-5U or FS-6) and operate the automatic feedback frequency detection with your foot. Holding down the foot switch for one second or longer starts the automatic feedback frequency detection. Based on the results of this analys[...]

12 Names of Things and What They Do After connecting two SA-300s together with one or two audio cables (1/4-inch phone type), you can easily play back high power sounds (350 W + 350 W) in stereo. 6. STEREO LINK IN Jack When using Stereo Link, the audio output by the STEREO LINK OUT L or STEREO LINK OUT R jack on the other SA-300 is input here. You [...]

13 Making the Connections Refer to the figure shown below to connect the SA-300 and the other equipment. fig.02-01 * To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and turn off the power on all devices before making any connections. * Before making any connections, set the SA-300’s MASTER VOLUME kn[...]

14 Making the Connections Switching the Power On and Off Once the connections have been completed, turn on power to your various devices in the order specified. By turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices. 1. Make sure that all volume controls on the SA-300 and connected devices[...]

15 Making the Connections About Stereo Link You can easily play back high power sounds (350 W + 350 W) in stereo by connecting two SA-300s together with one or two audio cables (1/4-inch phone type). This function is called “Stereo Link.” The SA-300 features a stereo mixer function, which enables you to output either left or right channel signa[...]

16 About the Anti-Feedback Function Features of SA-300 ANTI-FEEDBACK Many previous anti-feedback systems use methods of determining feedback that actually generate feedback in order to detect the feedback point, resulting in a system that is extremely unpleasant to use. On the other hand, the SA-300 employs a newly developed method that does not re[...]

17 About the Anti-Feedback Function How to Use Anti-Feedback Anti-feedback is enabled only for Channels 1 and 2. In addition, the function can be used only when INPUT SELECT is set to MIC. When Using a Mic Stand Both the mic characteristics and the characteristics of the surrounding environment can be compensated for. 1. Set up and connect the SA-3[...]

18 About the Use of Stacks ● Stack so that the speaker side of both the top cabinet and the bottom cabinet face the same direction. fig.03-01 ● Adjust the horizontal position of the top cabinet so that the corner protectors are properly engaged and locked at all four corners between the top and bottom cabinets. Do not use the amplifiers without[...]

19 Using a Speaker Stand By using a speaker stand, you can mount the SA-300 at the optimal height for use as a monitor speaker or simple PA device. ● The SA-300 is designed to be used only with speaker stands whose dimensions meet the specifications described below. Do not use it with a speaker stand that does not meet the following specification[...]

20 Block Diagram fig.05-01 MASTER OUT L MASTER OUT R STEREO LINK IN STEREO LINK control volume control EQU ALIZER LO W BOOST WIDE V OICE ENHANCER ANTI-FEEDBA CK (MIC only) V OICE ENHANCER ANTI-FEEDBA CK (MIC only) DELA Y /REVERB DELA Y /REVERB REVERB LINE R LINE L (MONO) MIC CH1 CH2 CH3 CH4 STEREO LINK MIC LINE L (MONO) MIC LINE L (MONO) LINE R LIN[...]

21 Main Specifications SA-300 ● Rated Power Output 350 W (75 W x 2 + SUBWOOFER 200 W) ● Nominal Input Level (1 kHz) INPUT (MIC): -50 dBu INPUT (PHONE): -20 dBu INPUT (RCA): -20 dBu STEREO LINK INPUT: 0 dBu ● Nominal Output Level (1 kHz) LINE OUT: +4 dBu BALANCED OUT: +4 dBu STEREO LINK OUTPUT: 0 dBu *0 dBu = 0.775 Vrms ● Speakers 16 cm + Tw[...]

22 Main Specifications SA-300W (SUBWOOFER) ● Speaker 30 cm / 12 inches ● Nominal Impedance 4 Ω ● Connection INPUT Jack (1/4” phone type) ● Dimensions 456 (W) x 325 (D) x 510 (H) mm 18 (W) x 12-13/16 (D) x 20-1/8 (H) inches ● Weight 10.5 kg / 23 lbs 3 oz ● Accessories Owner’s Manual Speaker connection cable ● Options Foot Switch:[...]

This product complies with the requirements of European Directives EMC 89/336/EEC and LVD 73/23/EEC. For EU Countries For Canada This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouill[...]

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