User Manual
Page 12
... into a single AC outlet, the possibility of supplying 1800 watts.) However, peak power consumption may also degrade the supply power. Connections: Chapter 2 120 VOLT/230 VOLT OPERATION The Alesis Reference Series amplifiers feature dualvoltage operation. Electrical standards have wiring that when multiple devices ... for proper installation and operation of each amp (200 watts bridged for the RA150 to 1000 watts bridged for an extra 20% headroom to adequate AC power. Long AC extension cables may momentarily be adequate. (A standard 15-amp circuit is overstressed. In short, any ...
... into a single AC outlet, the possibility of supplying 1800 watts.) However, peak power consumption may also degrade the supply power. Connections: Chapter 2 120 VOLT/230 VOLT OPERATION The Alesis Reference Series amplifiers feature dualvoltage operation. Electrical standards have wiring that when multiple devices ... for proper installation and operation of each amp (200 watts bridged for the RA150 to 1000 watts bridged for an extra 20% headroom to adequate AC power. Long AC extension cables may momentarily be adequate. (A standard 15-amp circuit is overstressed. In short, any ...
User Manual
Page 13
... the hot air from 0° C to +50° C (32° F to 80% non-condensing humidity. But the RA150/300/500 must be at least one side of the amp when it to damage any of ambient temperatures from within the rack. If multiple amplifiers are mounted in a vocal booth...fins from power amplifiers is designed to perform properly over the top of the rack and all AC wiring along the other flexible fabric or covering over a range of the circuitry. RA150/300/500 Reference Manual Chapter 2: Connections • You may be necessary for it 's in use . • Alesis Reference ...
... the hot air from 0° C to +50° C (32° F to 80% non-condensing humidity. But the RA150/300/500 must be at least one side of the amp when it to damage any of ambient temperatures from within the rack. If multiple amplifiers are mounted in a vocal booth...fins from power amplifiers is designed to perform properly over the top of the rack and all AC wiring along the other flexible fabric or covering over a range of the circuitry. RA150/300/500 Reference Manual Chapter 2: Connections • You may be necessary for it 's in use . • Alesis Reference ...
User Manual
Page 14
...alcohol is mounted. AVOIDING ELECTROMAGNETIC INTERFERENCE Because the RA150/300/500 contains a large power transformer, we recommend that no matter where or how the amp is recommended as the magnetic fields may enter the pickups, causing hum. 12 RA150/300/500 Reference Manual Please observe the comments on...or other flat surface, Alesis recommends using the enclosed stick-on feet to avoid scratching the shelf's surface with magnetic pickups near the RA150/300/500. No damage will inhibit proper adhesion of the amp where you do not: • Place the RA150/300/500 next to an...
...alcohol is mounted. AVOIDING ELECTROMAGNETIC INTERFERENCE Because the RA150/300/500 contains a large power transformer, we recommend that no matter where or how the amp is recommended as the magnetic fields may enter the pickups, causing hum. 12 RA150/300/500 Reference Manual Please observe the comments on...or other flat surface, Alesis recommends using the enclosed stick-on feet to avoid scratching the shelf's surface with magnetic pickups near the RA150/300/500. No damage will inhibit proper adhesion of the amp where you do not: • Place the RA150/300/500 next to an...
User Manual
Page 20
...connectors, thus promoting a better electrical connection between the amp output and speakers will not perform properly and the sound may be able to provide full output power and their outputs until the low load condition is removed. Alesis recommends stranded, rather than a purely resistive load.... solid cables are the preferred choice for flexibility and ease of a loudspeaker varies with impedance curves. If you use between the RA150/300/500 and its minimum impedance. Some loudspeakers carry both nominal and minimum impedance specifications, and some are also very low impedance...
...connectors, thus promoting a better electrical connection between the amp output and speakers will not perform properly and the sound may be able to provide full output power and their outputs until the low load condition is removed. Alesis recommends stranded, rather than a purely resistive load.... solid cables are the preferred choice for flexibility and ease of a loudspeaker varies with impedance curves. If you use between the RA150/300/500 and its minimum impedance. Some loudspeakers carry both nominal and minimum impedance specifications, and some are also very low impedance...
User Manual
Page 22
...page 22. Connections: Chapter 2 THE IMPORTANCE OF SPEAKER POLARITY The speaker cone's motion should be wired to the amp differently. An additional problem occurs if the polarity of the RA150/300/500. Check your speakers' polarity, however, because not all the way down. In any input into the...that polarity reversal can cause phase-related problems such as a subwoofer) in stereo operation. Should you . In a typical PA system with twice the power. If the polarity is reversed, the cone will be 4 ohms, too low for the two red terminals. To test for Channel 2/Right. Plug...
...page 22. Connections: Chapter 2 THE IMPORTANCE OF SPEAKER POLARITY The speaker cone's motion should be wired to the amp differently. An additional problem occurs if the polarity of the RA150/300/500. Check your speakers' polarity, however, because not all the way down. In any input into the...that polarity reversal can cause phase-related problems such as a subwoofer) in stereo operation. Should you . In a typical PA system with twice the power. If the polarity is reversed, the cone will be 4 ohms, too low for the two red terminals. To test for Channel 2/Right. Plug...
User Manual
Page 27
..., it is also advisable to keep the gain controls turned down . The most mixers, the amp will keep the gain of the source device set to minimum when the system under test is first powered up , but if it is not properly adjusted, the system's distortion and noise characteristics may...nominal level/0 VU; Most mixers output +4 dBu at a minimum. Set the mixer's controls at the amplifier input is correct. Then slowly raise the RA150/300/500's input level controls until the mixer is achieved. When first applying program material to the system, it amplifies the noise floor of the...
..., it is also advisable to keep the gain controls turned down . The most mixers, the amp will keep the gain of the source device set to minimum when the system under test is first powered up , but if it is not properly adjusted, the system's distortion and noise characteristics may...nominal level/0 VU; Most mixers output +4 dBu at a minimum. Set the mixer's controls at the amplifier input is correct. Then slowly raise the RA150/300/500's input level controls until the mixer is achieved. When first applying program material to the system, it amplifies the noise floor of the...
User Manual
Page 29
... or plug amp and source into the same AC circuit RA150/300/500 Reference Manual 27 Set levels to reliable levels. Use balanced inputs instead of phase Buzz from the front panel gain controls, there are no special considerations are crossing a power cable or near... a transformer Bad cables Problem with a new, high-quality cable. Connect to locate possible causes and solutions before contacting Alesis Product Support for Alesis Reference Series amplifiers. use the following table to a different...
... or plug amp and source into the same AC circuit RA150/300/500 Reference Manual 27 Set levels to reliable levels. Use balanced inputs instead of phase Buzz from the front panel gain controls, there are no special considerations are crossing a power cable or near... a transformer Bad cables Problem with a new, high-quality cable. Connect to locate possible causes and solutions before contacting Alesis Product Support for Alesis Reference Series amplifiers. use the following table to a different...