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Istruzioni per l'uso Ampeg, Modello B1RE

Produttore : Ampeg
File Size : 325.18 kb
File Nome : 231a51a2-8dc3-475a-a8bb-5ec33d4e3486.pdf
Lingua di insegnamento: en
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Facilità d'uso


Do not attempt to defeat the safety ground connection! 15. SPEAKERS: Use these jacks to connect the amplifier to your speaker(s) using high quality speaker cables terminated with 1/4” connectors. WARNING: The speaker output of this unit can exceed 10 Watts and could be a shock injury. Connection to speakers should be performed by a skilled person in compliance with local building codes. Class 2 wiring is required for speaker cables. Use of external speakers outside the ratings stated at the speaker jack may result in a shock injury or damage to the unit. NOTE: When connecting multiple speaker cabinets to the B1RE, keep the overall impedance at or above four ohms! The following chart shows the total impedance load when connecting speaker cabinets in parallel: Cabinet # of Total Impedance Cabs Impedance 8. 2 4. 16. 2 8. 16. 4 4. 16. POWER AMP IN: This mono jack allows you to feed the preamp output of another amplifier to the input of the B1RE’s internal power amp. This bypasses the preamp circuitry of the B1RE. WARNING: This jack goes directly into the power amplifier. DO NOT connect high level signals to it! 17. PREAMP OUT: A post-EQ signal may be taken from this jack and sent to the house mixing board, recording console or external power amplifier. 18. EFFECTS LOOP RETURN: To use an external effects device, connect the OUTPUT of the device to this jack by means of a shielded cable. This feeds the processed signal into the Master section of the B1RE. 19. EFFECTS LOOP SEND: Connect the output from this jack to the INPUT of your effects by means of a shielded cable. This sends a post-EQ signal to your effects. 20. -20dB/0dB: This switch sets the output level at the Bal. Out jack (#22). The control works independently from the front panel Master control. Depressing the switch activates the 20dB pad. The result is a signal that is more compatible with the microphone inputs on a mixer. 16 17 18 192021 22 21. POST/PRE: You can select either Pre or Post EQ for the signal at the Bal. Out jack (#22) with this switch. With the switch in the OUT position, the signal at the jacks will be Pre-EQ. This is a direct output not affected by any EQ or boost settings. With the switch depressed, the signal is Post- EQ and is controlled and modified by the tone controls and Effects Loop. 22. BAL. OUT: This XLR-type connector supplies a balanced preamp output signal for connecting to a house mixing board, recording console or external amplifiers with balanced inputs. The signal can be set to Pre or Post EQ by the back panel Pre/Post switch (#21). The level can be adjusted for either mic or line type inputs using the -20dB/0dB switch (#20). -12dB PEAK GAIN PAD BASS ULTRA MID TREBLE MASTER -12dB PEAK GAIN PAD BASS ULTRA MID TREBLE MASTER -12dB PEAK GAIN PAD BASS ULTRA MID TREBLE MASTER -12dB PEAK GAIN PAD BASS ULTRA MID TREBLE MASTER 6 Some Suggested Settings Rack Mounting: JAZZ: ROCK: COUNTRY: FUNK “POPPING:” The setting of the Gain control depends on your particular instrument. The Master should be set to produce the appropriate output volume level. The Graphic EQ can be used to tailor the amplifier to your speaker cabinets, to compensate for room acoustics and to “fine tune” your sound. When mounting the B1RE into a rack, the four bottom feet should be removed to maintain the two rack space height of the amplifier. Be sure to keep the feet and their attachment bolts for future use. If the feet are reinstalled, never use screws which will protrude farther into the amplifier than the original hardware. The rack must be a high quality enclosure capable of securely supporting the weight of the amplifier. Tighten the mounting screws securely through the amplifier’s face plate, into the rack rails. Check the rack and mounting screws occasionally to ensure a continually safe and secure installation. B1RE Bass Amplifier B1RE Bass Amplifier Troubleshooting In the unlikely event that your B1RE should malfunction, take a few minutes to troubleshoot it before you call for service. You can save yourself a lot of time and sometimes money by doing it yourself, and often the cure for the problem is something quite simple. NO SOUND LEDs LIGHT POOR SOUND Check bass, cables Check speaker(s) Replace speaker(s) POOR SOUND LEDs DON'T LIGHT Check AC outlet NO SOUND NO HUM HUM Listen for hum NO CHANGE SOUND OK SOUND OK POOR SOUND SOUND OK SOUND OK SOUND OK Check amp controls, check for signal from bass Check power cord, fuse, power switch Check house fusebox or circuit breaker SPEAKER(S) OK, POOR SOUND SPEAKER(S) DEFECTIVE Check speaker Unplug bass, touch tip of cable LOUD HUM Check inst. pickup Speaker OK Replace cable NO CHANGE SEE BELOW SEE BELOW NO POWEROUTLET OK OK If the problem isn’t covered above, or if the steps lead you here, then contact your Ampeg dealer for service information. Also, you should refer your amp to an authorized service center for servicing if it gets dropped, has liquid spilled into it, or sustains damage to its power cord. S...


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