Alesis M1 Active Mk2 manual Power Switch, Input Connections

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Speaker Installation

POWER SWITCH

The POWER switch is located on the back panel. A blue power indicator lamp is on the front panel.

INPUT CONNECTIONS

Almost any conventional line-level source may be plugged into the M1 Active Mk2’s LINE INPUT jack. The Line Input jack accepts both XLR and 1/4” input plugs wired either balanced or single-ended (unbalanced). The best connection is to use a high-quality XLR-to-XLR “mic cable” between the output of the source (usually, the CONTROL ROOM OUTPUT of the console) and the speakers. A conventional 1/4” “patch cord" mono TS-type plug will also work for unbalanced sources which automatically ground the minus input.

Polarity: Input connector wiring is printed to the left of the connector on the back panel and is as follows:

+ Pin 2: tip (“hot”)

- Pin 3: ring (“cold”)

Shield Pin 1: sleeve (ground)

A positive voltage on the “hot” connector will cause the drivers to move outwards

Unbalanced Line Input

Signal Tip

Ground

Sleeve

 

 

 

 

 

 

 

 

 

 

 

 

Tip

Sleeve

Balanced Line Input

Hot

Tip

Cold

Ring

Ground

Sleeve

Tip

 

Ring

Sleeve

Direct connection of unbalanced -10 dBV line level sources: Most synthesizers, drum machines, effect devices, cassette decks and CD players operate at this level. Their average signal level is about 1/3 of a volt. They have a 2-conductor output jack that is either a 1/4" phone or "RCA phono" type. These may be plugged directly into the M1 Active Mk2’s LINE IN jacks.

M1 Active Mk2 Reference Manual

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Contents Reference Manual Alesis Contact Information Contents Introduction HOW to USE this ManualPlease Follow These Precautions When Using this Product Important Safety InstructionsSafety Symbols Used in this Product Contents/Safety Warnings Instructions DE Sécurité Importantes French Symboles Utilisés Dans CE ProduitContents/Safety Warnings ICES-003 Issue CE Declaration of Conformity Chapter About the M1 Active MK2Unpacking and Inspection Inside Your NEW Speakers About Powered MonitorsMagnetic Shielding ToneAbout the Drivers M1 Active MK2 BI-AMPLIFIERS & Electronic Crossovers Cabinet and Port Design M1 Active MK2 Power SupplyWHY the Tweeters are Offset About Nearfield Monitoring About the M1 Active Mk2 Avoiding Reflections in the Studio Speaker InstallationReflection 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 USE Clean Power AC Power CableConnections GroundingInput Connections Power SwitchSetting the Input Level Control 85.0 Avoiding Damage About Surround Sound Surround SoundCenter Speakers in Music Mixes Placement of the Center M1 Active MK2 Speaker in the Studio Recommended positioning of surround speakers Placement of Rear SurroundsSurround Sound Wall Mounting Surround Sound Surround Sound Troubleshooting Index TroubleshootingCleaning MaintenanceService Obtaining Repair ServiceCustomers outside the USA and Canada Transducers SpecificationsEnclosure Amplifier Section Crossover SectionAcoustic Section GeneralLine IndexPlease Send in Your Warranty Card Alesis Limited WarrantyM1 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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