Évaluations - 3, GPA: 3
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Facilité d'utilisation
This is normal and does not indicate a malfunction of the amplifier. O P Q S R T S3 Jfi, S. S 9 •* *»/■ •V4BT % # ® ® ® ® REAR PANEL FEATURES: _ LINE CORD (N) For your safety, the ED 300 is equipped with a three-wire Line (mains) Cord and a three-pin AC plug. It is not advisable to remove the ground pin under any circumstances. If it is necessary to use the ED 300 without proper grounding facilities (as when only two-wire AC service is available), a suitable grounding adaptor should be used. When the ED 300 is used with properly grounded AC receptacles, shock hazard is greatly reduced, as are hum and noise. MONITOR NORMAL AND MONITOR BRIGHT JACKS (P, Q) The Monitor Jacks may be used to send independent signals from each channel to outboard equipment such as monitor amplifiers, sound reinforcement systems or recording consoles. Signals at each jack are directly controlled by the respective Monitor Controls (C) on the front panel. All signals appearing at the Monitor Jacks are unaffected by any other gain or equalization controls. MONITOR SUM JACK (O) This unbalanced Lo-Z output provides access to a summed monitor signal. Signal at this jack is unaffected by Channel Gam. Master Gain or Equalization Controls, but will be affected by either or both Monitor Controls (C) on the front panel. PREAMP OUT JACK/POWER AMP IN JACK (R, S) The Preamp Out Jack and Power Amp In Jack provide another form of effects patching within the ED 300. Effects may be patched between the preamp and power amp according to the following diagram. Be sure to use high-quality shielded cables when connecting any effects device with the ED 300. Connecting an effects device at the Preamp Out Jack/Power Amp In Jack differs in two ways from effects patching discussed earlier. First, any effect patched at this point will affect ALL signals in both channels within the amplifier (except monitor signals). Secondly, this effects patch point occurs after the ED 300's equalization stage (post-EQ). In experimenting with effects patching, you may note differences in the oparation of an effects device depending on its location in the signal path LINE/RECORDING JACK (T) The Line/Recording Jack provides a means of sending a low impedance signal to the mixer, recording console or additional amplifier. Signals appearing at this jack are post-EQ and contain information received from both input channels. ‘U.S. Patent 4.318.053 . r, — _ PWR. AMP ED 3DD in I > 1 PREAMP ruT 1 1 EFFECTS PATCHING USING PREAMP OUT AND POWER AMP IN OUTPUT INPUT EFFECTS DEVICE ED-300 SPECIFICATIONS SUMMARY OF FUNCTIONS: Two channels. Pre EO Patch and four-band equalizer (each channel); preamp out, monitor (each channel); master level; 130 watt power amp with DOT’* compression; one 15" Scorpion® Plus speaker and ono CH-3 horn and 22A compression driver MIXER SECTION; The following preamp specs are measured with all EQ flat at 0 dB. master level set at 10. Nominal signal levels are with channel level controls set at 5 Minimum levels are with channel level controls set at 10. INSTRUMENT INPUTS: Impedance High 2. 100K ohms Nominal Input Level: -20 dBV. 100KV RMS 100 Minimum Input Level: -40dBV. 10mMV RMS Maximum Input Level. *10 dBV. 3V RMS PRE EQ PATCH OUTPUT (STEREO JACK TIP): Function: Low Level Effects Send Load Impedance: 10K ohms or greater Nominal Output: -9 dBV, 0.35V RMS PRE EQ PATCH INPUT (STEREO JACK RING): Function: Low Level Effects Return Impedance: High Z. lOOK ohms Designed Input Level: -9 dBV, 0.35V RMS {Switching stereo jack providing patch output to patch input connection when not used) PREAMP OUTPUT: Function: High Level Post EQ Signal Send Load Impedance: IK ohms or greater Nominal Output OdBV. 1V RMS Maximum Output *18 dBV, 8V RMS POWER AMP INPUT: Function: High Level Post EQ Signal Return Impedance High Z. 22K ohms Input Level: OdBV. IV RMS (Switching jack provides preamp output to power amp input connection when not used) LINE RECORDING OUTPUT: Function: Additional preamp output Load Impedance: IK ohms or greater Nominal Output: -0 dBV, IV RMS Maximum Output: -18 dBV. 8V RMS THE FOLLOWING SPECS MEASURED AT NOMINAL SETTINGS: ALL CHANNEL INPUTS TERMINATED WITH 47K OHMS: FREQUENCY RESPONSE (Channel In/Preamp Out with 1V RMS output): Equalized for ED-300 speakers PREAMP HUM « NOISE: -75 dBV (Both channels operational) SYSTEM DISTORTION (Channel In/Preamp Out, 40 Hz - 20 kHz at 1V RMS): Less than 05% THD, typically below .01% EQUALIZATION: */-15 dB at 60 Hz and 10 kHz. Shelving ■»/-15 dB at 400 Hz, Peak.‘Notch +/-15dB at 1800 Hz, Peak/Notch POWER AMPLIFIER SECTION: RATED POWER AND LOAD: 130V/ RMS into 4 ohms with DDT'* Compression and LED Indicator POWER AT CLIPPING (typically at 5% THD. 1 kHz. 120 VAC line): 85W RMS into 8 ohms 140W RMS into 4 ohms 2 ohms NOT recommended FREQUENCY RESPONSE: •0, -1 dB, 20 Hz to 20kHz at 100W RMS into 4ohms TOTAL HARMONIC DISTORTION: Less than 0.2%. 100 mV.' to 1C0W RMS. 20 Hz to ...
Ce manuel est également adapté pour les modèles :Instruments de musique - ED-300 (661.39 kb)