Alesis Comprehensive Manual for Troubleshooting and Maintaining M1 Active Mk2 Speakers
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Troubleshooting

MAINTENANCE

CLEANING

The cabinet surfaces of the M1 Active Mk2 are covered with a vinyl laminate. Clean these surfaces when necessary with a lint-free cloth dampened in warm soapy water. USE ONLY A DRY CLOTH ON THE BACK PANEL OF THE POWER AMPLIFIER. Do not attempt to clean the cabinet with a brush (which may damage the surface) or a sponge (which may leave small crumbs in the texture).

Do not attempt to clean either of the drivers.

The M1 Active Mk2/Surround speakers require no periodic maintenance.

REFER ALL SERVICING TO ALESIS

We believe that the M1 Active Mk2 is one of the most reliable powered monitors that can be made using current technology, and should provide years of trouble-free use. However, should problems occur, DO NOT attempt to service the unit yourself. Service on this product should be performed only by qualified technicians. THERE ARE NO USER-SERVICEABLE PARTS INSIDE.

SERVICE

Before sending the M1 Active Mk2s in for repair, make sure they are faulty and that the problem isn't being caused by something else in the system. Distortion or noise may be caused by a defective preamp, cable, equalizer etc., or a loose connection in the system. Connect the speakers to a system that is known to be working properly to check whether the monitors have malfunctioned.

OBTAINING REPAIR SERVICE

Before contacting Alesis, check all your connections, and make sure you’ve read the manual.

Customers in the USA and Canada: If the problem persists, call Alesis USA at 1-800-5-ALESIS and request the Technical Support department. Talk the problem over with one of our technicians; if necessary, you will be given a return order (RO) number and instructions on how to return the unit. All units must be shipped prepaid and COD shipments will not be accepted.

For prompt service, indicate the RO number on the shipping label. Units without an RO will not be accepted. If you do not have the original packing, ship the M1 Active Mk2 in a sturdy carton, with shock-absorbing materials such as styrofoam blocks or “bubble-pack” surrounding the unit. Make sure

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M1 Active Reference Manual

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Contents Reference Manual Alesis Contact Information Contents HOW to USE this Manual IntroductionImportant Safety Instructions Safety Symbols Used in this ProductPlease Follow These Precautions When Using this Product Contents/Safety Warnings Symboles Utilisés Dans CE Produit Instructions DE Sécurité Importantes FrenchContents/Safety Warnings ICES-003 Issue CE Declaration of Conformity About the M1 Active MK2 Unpacking and InspectionChapter About Powered Monitors Inside Your NEW SpeakersTone About the DriversMagnetic Shielding M1 Active MK2 BI-AMPLIFIERS & Electronic Crossovers M1 Active MK2 Power Supply Cabinet and Port DesignWHY the Tweeters are Offset About Nearfield Monitoring About the M1 Active Mk2 Speaker Installation Avoiding Reflections in the StudioReflection Prime Listening Position Stereo Nearfield Placement M1 Active MK2 Horizontal Placement Recommendation Vertical Placement Recommendation Playback Check Mode Vertical MID-FIELD Plugging the Ports to Adjust for Room Acoustics Speaker Installation Connections AC Power CableUSE Clean Power GroundingPower Switch Input ConnectionsSetting the Input Level Control 85.0 Avoiding Damage Surround Sound About Surround SoundCenter Speakers in Music Mixes Placement of the Center M1 Active MK2 Speaker in the Studio Placement of Rear Surrounds Recommended positioning of surround speakersSurround Sound Wall Mounting Surround Sound Surround Sound Troubleshooting Troubleshooting IndexService MaintenanceCleaning Obtaining Repair ServiceCustomers outside the USA and Canada Specifications EnclosureTransducers Acoustic Section Crossover SectionAmplifier Section GeneralIndex LineAlesis Limited Warranty Please Send in Your Warranty CardM1 Active Reference Manual

M1 Active Mk2 specifications

The Alesis M1 Active Mk2 is a well-regarded studio monitor designed for musicians, producers, and audio engineers seeking high-quality sound reproduction at an accessible price point. With a focus on delivering accurate sound and a balanced performance, the M1 Active Mk2 has become a popular choice for both home studios and professional environments.

One of the standout features of the M1 Active Mk2 is its bi-amplified design. Each speaker is powered by dedicated amplifiers that optimize the performance of the woofer and tweeter separately. This bi-amplification ensures clear and precise sound reproduction across the frequency spectrum. The 6.5-inch low-frequency driver is designed to deliver robust bass response while the 1-inch silk dome tweeter provides smooth high-frequency performance, resulting in a well-rounded audio experience.

The M1 Active Mk2 incorporates advanced technologies to enhance its performance. The monitor features a front-firing bass port that helps to minimize boundary coupling and improves the overall bass response, allowing for placement flexibility within the studio. This design reduces the risk of unwanted resonances caused by proximity to walls, ensuring accurate sound even in challenging acoustic environments.

Another important characteristic of the M1 Active Mk2 is its frequency response, which ranges from 55 Hz to 20 kHz. This wide frequency range makes it suitable for various musical genres and audio applications, enabling users to hear detailed nuances in their mixes. Additionally, the monitor is equipped with a rear-mounted EQ control, allowing users to tailor the sound to their specific acoustic space, mitigating the effects of room acoustics on playback.

Durability and design are also key aspects of the M1 Active Mk2. Its rugged enclosure is built to withstand the rigors of studio use while also providing a sleek and professional appearance. The monitors can be easily positioned on desktop surfaces or mounted on stands, making them versatile for different studio setups.

Overall, the Alesis M1 Active Mk2 stands out as a reliable and affordable option for anyone looking to improve their audio monitoring capabilities. With its bi-amplified design, advanced technologies, and customizable features, this studio monitor delivers impressive sound quality suitable for both amateur and professional recording applications. Whether mixing, mastering, or simply enjoying music, the M1 Active Mk2 is designed to deliver a true-to-source listening experience.
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