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ALESIS
Monitor One
Reference Manual
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TABLE OF CONTENTS CHAPTER 1: ABOUT THE MONITOR ONE 1.0 A LITTLE HISTORY 2 ............................................... CHAPTER 2: INSTALLATION 2.0 SPEAKER PLACEMENT 4 ........................................ 2.1 CONNECTIONS 7 .................................................... 2.2 POWER AND PROTECTION 8 .................................. CHAPTER 3: SPECIFICATIONS AND SERVICE 3.0 SPECIFICATIONS 10 ................................................. 3.0A Architectural and Engineering Speci
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CHAPTER 1: ABOUT THE MONITOR ONE Your new Alesis Monitor One™ Studio Reference Monitors will deliver accurate mixes in near-field digital and analog studio monitoring applications. The Monitor Ones offer wide frequency response, accurate transient reproduction, clear imaging and high power handling capability and were designed by experts with decades of experience in professional loudspeaker design. This speaker system uses a proprietary 6.5" high-power low frequency driver with a special mine
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been successfully tested to over 200 watts using the industry standard EIA-426A method. This a rugged speaker system designed for serious professional use. Covered with a non-slip rubber textured laminate for stable mounting, the Monitor Ones come in a mirror image left/right pair for symmetrical horizontal mounting. 1.0 A LITTLE HISTORY In the early days of recording, most recording studios used big monitor speakers almost exclusively. Unfortunately, they also required high powered amplifier
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to augment their big monitoring systems, and near-field monitors have become proven tools in the recording business. 3
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CHAPTER 2: INSTALLATION Like any speaker system, your Monitor Ones will work best when properly positioned in a suitable acoustic environment. Achieving proper speaker placement is usually straightforward, but even with near-field monitors, speaker placement and the acoustics of the listening room itself are too often overlooked and can become significant contributors to an inaccurate and uninspiring monitoring environment. Please take a moment to read this information carefully. It will help y
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Reflection control panel (as shown in Figure 1 below). This kind of speaker placement also couples acoustic energy from the speaker's cabinet more readily into the console's chassis. Both conditions should be reduced by placing the speakers on their own stands acoustically detached from, and slightly behind, the console as shown in Figure 2. In this location, the reflective path off the console's control panel is now blocked by the meter bridge. Figure 1 Direct Path Monitors placed on the con
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Right Monitor TM more than one engineer are accommodated by a smaller rotation of the cabinets. This will widen the prime listening position somewhat. Figure 3 The speakers and listener should be at the three corners of a triangle having equal length sides Prime Listening Position Alesis has designed the Monitor Ones for horizontal mounting. This keeps their height profile as low as possible to minimize the recording engineer's visual obstructions. Your Monitor Ones are supplied as a symme
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The Monitor Ones are completely covered with a non-slip rubber textured laminate whereas other speakers provide small stick-on pads (or nothing at all) to keep them from slipping around while they are playing. If you need to move the Monitor Ones or adjust their position slightly, lift them off the mounting surface first rather than attempting to slide them. 2.1 CONNECTIONS Professional grade 5-way binding posts are provided for external wiring to the amplifier. This type of connector can acc
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plug usually has a "GND" marker molded on it so you can keep polarity straight after unplugging and replugging. In standard practice, the GND side connects to the black terminal of the speaker. To connect wires to the terminals if you are not using a banana plug: 1. Strip about 1/2" (15 mm) of insulation from the ends of each wire. If the wire is stranded, twist the strands together at the end. 2. Turn the red and black terminal caps counter-clockwise until they reach their limit. As you do,
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the amplifier’s clipping generates high frequency energy sufficient to damage the high frequency driver. Alesis does not suggest the use of any external protection devices, but considers such devices as fuses, lamps and/or thermal breakers safe to use, so long as they do not cause failures or require modifications to the Monitor One's construction which would void the warranty. Actually, many such devices are generally considered ineffective and can additionally alter the speaker's sound charac
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CHAPTER 3: SPECIFICATIONS AND SERVICE 3.0 SPECIFICATIONS Drivers: 6.5" low frequency, 1" silk dome high frequency Crossover: 2.5 kHz, 2nd-order filters (12 dB per octave) Frequency Response: 45 Hz - 18 kHz, ±3 dB Power Handling: 120 watts program, 200 watts peak (using EIA- 426A method) Nominal Impedance: 4 ohms Sensitivity: 88 dB SPL @ 1 watt and 1 meter on axis Cabinet: Rubber textured laminate over 5/8" MDF with Alesis SuperPort on rear Dimensions: 15"W x 9.25"H x 8.5"D Weight: 15 lb. eac
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covered in a dark grey rubber textured laminate. The cabinet shall have a large folded vent port tuned to extend the response of the low-frequency driver, using Thiele-Small parameter calculations adjusted for the effects of turbulence in the port during high-power operation. The cabinet shall measure 15" wide, 9.25" high, and 8.5" deep, and weigh 15 pounds (Metric specification: 38.1 cm x 23.5 cm x 21.6 cm, 6.8 kilograms). Each assembly shall exhibit a frequency response from 45 Hz to 18 kHz
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repaired under warranty, you must provide a copy of the original sales receipt as evidence of date of purchase. Repairs will be made under warranty only after Alesis or an Authorized Service Center has determined in its sole discretion through inspection that the failure was not the result of overpowering, abuse, power surges, or defective components ahead of the Monitor One. OPENING THE MONITOR ONE OR ALTERING ANY OF ITS COMPONENTS WILL VOID THE FACTORY WARRANTY. To obtain repair after the wa
