Alesis M1 Active 620

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Page last updated Jun 09, 2026

Pricing and availability

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Price

Average Price: $152

Budget/Beginner

$300

$801+

Price Tier

In the Active & Passive Monitors category, Alesis M1 Active 620 is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

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Description

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Step into the world of crystal-clear sound with the Alesis M1 Active 620, a studio monitor meticulously crafted for both amateur and professional sound engineers. This third-generation marvel is engineered to provide incredible definition and a flat frequency response, making it an essential tool for any recording studio. The M1 Active 620 features a 6.5" low-frequency woofer and a 1" silk dome tweeter, ensuring smooth and detailed sound across all frequencies without the harshness that can lead to ear fatigue.

The innovative Bass Density control allows you to customize your sound, adapting seamlessly to any room setting or placement. The redesigned cabinet boasts a 1" thick front baffle, minimizing speaker resonance, while the acoustical waveguide ensures superior imaging with minimal diffraction. With the top-mounted power/clip light bar, you'll be instantly aware of any potential clipping.

Designed for adaptability, the M1 Active 620 comes with rear-mounted EQ switches, allowing you to tailor the output to your studio's unique acoustics. Magnetically shielded and featuring XLR and 1/4" TRS inputs, this monitor is perfect for video production and music studios alike, providing versatility without compromising on sound quality. Whether you're mixing, mastering, or just enjoying your favorite tracks, the Alesis M1 Active 620 delivers sound as it was meant to be heard.

Key Features:

2-Way, 100-Watt active near-field reference monitor
6.5" low-frequency woofer and 1" silk dome tweeter
Bass Density control for room placement adaptability
Acoustical waveguide for superior imaging
1" thick front baffle minimizes resonance
Rear port design for deep bass extension
Hi, Mid, and Low Frequency EQ switches
Magnetically shielded for close placement to video monitors
XLR and 1/4" TRS input connectors
Top-mounted power/clip light bar

Product specs

Brand	Alesis
Model	M1Active 620 6.25" Powered Studio Monitors (Pair)
Finish	Grey/Black
Year	2010s
Categories	Studio Monitors

FAQs

What is the frequency response of the Alesis M1 Active 620 monitors?: The Alesis M1 Active 620 monitors have a frequency response that allows for accurate sound reproduction, making them suitable for detailed audio work in studio environments.
Are the Alesis M1 Active 620 monitors suitable for mixing and mastering?: Yes, the Alesis M1 Active 620 monitors are designed as near-field reference monitors, providing precise audio clarity ideal for mixing and mastering tasks.
What are the connectivity options available on the Alesis M1 Active 620?: The Alesis M1 Active 620 monitors feature XLR and 1/4" TRS connectors, allowing for flexible connectivity with various audio interfaces and mixing consoles.
How does the Low Frequency Density switch on the Alesis M1 Active 620 affect sound?: The Low Frequency Density switch on the Alesis M1 Active 620 adjusts the bass response, helping to optimize the sound for different room acoustics and personal preferences.
Do the Alesis M1 Active 620 monitors have any built-in EQ controls?: Yes, the Alesis M1 Active 620 monitors include Hi, Mid, and Low Frequency EQ switches, allowing users to tailor the sound to their specific needs and room acoustics.

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Alesis M1 Active 620.

Build quality

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Some owners reported issues with the power supplies in Alesis M1 Active 620s, noting frequent capacitor failures, especially during high-temperature conditions.
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The presence of carbonized areas on circuit boards can contribute to arcing; isolating or removing these sections is advised to prevent further damage.
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User experience

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A user found the Alesis M1 Active 620s to deliver impressive sound quality, rivaling higher-end brands like ELAC and B&W when paired with a subwoofer.
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Users mention the Alesis M1 Active 620 series is prone to frequent failures, with multiple components potentially sparking or failing post-repair attempts.
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Use cases and applications

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One owner successfully used the Alesis M1 Active 620s as computer speakers, highlighting their versatility beyond traditional studio use.
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Ideal for repurposing as bookshelf speakers in non-traditional settings, such as kitchens, when connected to a Denon AVR.
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Setup and maintenance

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Users advise against placing the monitors horizontally despite manual suggestions, noting improved sound quality when positioned vertically.
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Owners identify persistent issues with brown adhesive, which can become conductive over time, leading to shorts and sparks. Complete removal is recommended.
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Cleaning alone may be insufficient; oxidation on metal components requires additional flux during soldering to ensure proper bonding.
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The proximity of resistor ends (R3 and R4) increases the likelihood of sparking. Adjusting their positioning can help mitigate this risk.
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The crossover is crucial for sound quality, shaping frequencies to the woofer and tweeter; improper setup can significantly impact audio output.
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Comparisons

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Owners have favorably compared the sound quality of the Alesis M1 Active 620s to Polk and KRK speakers when used with a subwoofer.
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Features and functionality

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Built-in amplifiers with LM3886 for woofers (+35v, -35v) and LM2876 for tweeters (+25v, -25v) are recommended for optimal use.
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Mods and upgrades

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Consider using AirPlay receivers to enhance wireless functionality; this can expand the usage scenarios of these monitors.
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Critic Reviews

Alesis M1 Active 620 & 520

soundonsound.com

Alesis continues its tradition of offering good value with the M1 Active 620 and 520 monitors. The 620s deliver a detailed and smooth sound with remarkable stereo imaging and a satisfying low end, though the bass can be a bit exaggerated. The 520s maintain a similar tonal character but with less bass extension, suitable for smaller spaces. While bass accuracy isn't perfect, these monitors are easy to mix on and reveal sound issues effectively. Priced affordably, they present a strong case for budget-conscious studios, despite some competition from other brands and Alesis' own MkIIs.

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