Alesis M1 Active Mk2 manual Crossover Section, Amplifier Section, Acoustic Section, General

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Specifications

 

 

CROSSOVER SECTION

 

Crossover type:

4th-order, 24dB/octave Linkwitz-Riley @ 2000Hz

Input Impedance:

20kΩ balanced 10kΩ unbalanced

Low Frequency Filter:

4th order optimal Q high pass filter at 48Hz with +3 dB

 

equalization

AMPLIFIER SECTION

LOW FREQUENCY AMPLIFIER

Rated power output:

75 watts, 6Ω load

Distortion:

<0.02% THD @ 30 watts/8Ω 20Hz-20kHz

Slew rate:

19V/∝sec

Signal-to-Noise ratio:

>110dB referenced to 60 watts @ 8Ω, “A” weighted,

 

1kHz

 

HIGH FREQUENCY AMPLIFIER

Rated Power Output:

25 watts, 4Ω load

Distortion:

0.025% THD @ rated power

Slew rate:

9V/∝sec

Signal-to-Noise ratio:

>112dB @ rated output

ACOUSTIC SECTION

 

 

Free-Field Frequency Response:

±2dB, 50Hz to 20KHz

Lower Cutoff Frequency:

40Hz -10dB

Upper Cutoff Frequency:

23.5KHz –10dB

Maximum Peak SPL per pair: ≥ 118dB SPL @ 1m

Maximum short term SPL:

80Hz to 3.0KHz ≥ 105dB SPL @ 1m

GENERAL

 

 

Power Consumption:

120 watts with musical program, loud mix

 

12 watts quiescent (idle)

AC Dropout Voltage:

120V AC version: 80V AC

 

240V AC versions: 160V AC

Weight:

19.5 lbs. (8.9 kg) each

Dimensions (H x W x D):

15” (38.1 cm) x 8.5” (21.6 cm) x 10” (25.3 cm)

M1 Active Mk2 Reference Manual

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Contents Reference Manual Alesis Contact Information Contents Introduction HOW to USE this ManualImportant Safety Instructions Safety Symbols Used in this ProductPlease Follow These Precautions When Using this Product Contents/Safety Warnings Instructions DE Sécurité Importantes French Symboles Utilisés Dans CE ProduitContents/Safety Warnings ICES-003 Issue CE Declaration of Conformity About the M1 Active MK2 Unpacking and InspectionChapter Inside Your NEW Speakers About Powered MonitorsTone About the DriversMagnetic Shielding 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 Specifications EnclosureTransducers 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.