Millenium SMM 21

^# 63

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$31.00 Price Tier: Budget

5.0 (1)

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Page last updated Jun 01, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated March 19, 2026.

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4.6 (77)

$31.00

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Average Price: $31

Budget/Beginner

$119

$300+

Price Tier

In the Direct Boxes category, Millenium SMM 21 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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Price History

Based on price data from 1 merchant for "Millenium SMM 21". Prices shown reflect NEW condition. Tracking began Apr 25, 2026.

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Description

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Step into a new era of studio recording precision with the Millenium SMM 21, a must-have signal processor for any serious musician or audio engineer. This 2-channel signal merge box excels in seamlessly combining microphone inputs with pristine clarity, making it a versatile choice for both live and studio environments. Whether you're working with dynamic or condenser microphones, the Millenium SMM 21 ensures your audio quality remains uncompromised, thanks to its balanced decoupling and ground lift features.

What sets the Millenium SMM 21 apart is its attention to detail and adaptability. The switchable phantom power passage is perfect for powering your condenser mics without a hitch, and the phase 180° rotatable option adds another layer of flexibility to your setup. With its robust design, the device efficiently merges two XLR female inputs into one XLR male output, offering a streamlined solution for complex audio setups.

Ideal for those who demand reliability and performance, the Millenium SMM 21 is not just a tool—it's an integral part of your audio journey.

Key Features:

2-Channel signal merge box for microphones
Switchable phantom power passage
Phase 180° rotatable
From 2x XLR female in to 1x XLR male out
Ground lift
Balanced decoupling
Suitable for condenser microphones

Product specs

Available since	May 2011
Number Of Channels	2
Inputs	2
Outputs Per Channel	1
+48 V Phantom power	No
Grd Lift Switch	Yes
Pad Switch	No
Headphone Outputs	No
Design	Desktop

FAQs

Does the Millenium SMM 21 support phantom power for condenser microphones?: No, the Millenium SMM 21 does not support +48 V phantom power, so it cannot directly power condenser microphones that require it.
How many channels does the Millenium SMM 21 have?: The Millenium SMM 21 is a 2-channel direct box, allowing you to connect and process two separate audio signals simultaneously.
Is there a ground lift switch on the Millenium SMM 21?: Yes, the Millenium SMM 21 includes a ground lift switch, which helps eliminate hum and noise caused by ground loops in audio setups.
Can I use the Millenium SMM 21 for instruments with high output levels?: The Millenium SMM 21 does not feature a pad switch, so it may not handle high output levels as effectively as direct boxes with this feature.
What is the design format of the Millenium SMM 21?: The Millenium SMM 21 is designed as a desktop unit, making it suitable for studio and live sound applications where space is a consideration.