Pricing and availability

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Average Price: $27

Budget/Beginner

$119

$300+

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Budget

Standard

High-end

Price History

Based on price data from 1 merchant for "Millenium DI-33". Prices shown reflect NEW condition. Tracking began Apr 25, 2026.

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Description

The Millenium DI-33 is your passport to pristine sound clarity, whether you're in the studio or on stage. Designed for musicians and sound engineers who crave reliability and simplicity, this direct box strikes a perfect balance between rugged durability and high-performance audio processing. Housed in a sturdy metal casing with corner protectors, the DI-33 ensures your gear can withstand the rigors of live performances and the demands of studio environments.

With features like galvanic isolation, you can eliminate unwanted hums and buzzes, ensuring your audio signal remains clean and untainted. The DI-33's versatile connectivity options, including XLR and KLI inputs, empower you to seamlessly integrate with various audio setups. Its -20 dB pad and ground lift features provide added flexibility, allowing you to adapt to different signal levels and grounding scenarios with ease.

Whether powered by a single 9V battery or phantom power, the Millenium DI-33 ensures consistent performance across a wide frequency range of 10 to 40,000Hz. This makes it an ideal choice for capturing the subtle nuances of acoustic instruments as well as the full-bodied depth of electric sounds.

Key Features:

  • Active DI Box with Battery/Phantom Power
  • XLR/KLI input and XLR output
  • -20 dB pad for signal attenuation
  • Ground lift switch to eliminate ground loop noise
  • Galvanic isolation for clean signal transfer
  • Sturdy metal housing with corner protectors
  • Wide frequency range: 10 - 40,000Hz
  • Powered by 1x 9 Volt battery or phantom power

Owner's manual

Millenium DI-33 User Manual

Product specs

Available since May 2009
Multi-Channel Unit No
Channels 1
Active / Passive Active
19" No
Pad switchable Yes
Gnd/Lift switchable Yes
Powered by battery Yes
Speaker Simulation No

FAQs

Is the Millenium DI-33 an active or passive direct box?

The Millenium DI-33 is an active direct box, meaning it requires power to operate and is suitable for converting high-impedance signals to low-impedance, ideal for long cable runs.

Can the Millenium DI-33 be powered by a battery?

Yes, the Millenium DI-33 can be powered by a battery, offering flexibility for situations where external power sources are unavailable.

Does the Millenium DI-33 have a ground lift switch?

Yes, the Millenium DI-33 features a ground lift switch to help eliminate hum and ground loop noise in your audio signal.

Does the Millenium DI-33 have a pad switch?

Yes, the Millenium DI-33 includes a pad switch, which allows you to reduce the input signal level to prevent distortion from high-output sources.

Is the Millenium DI-33 suitable for use with high-output instruments?

Yes, the Millenium DI-33 is suitable for high-output instruments, as it includes a pad switch to manage and reduce the input signal level, preventing distortion.

reqordist

reqordist

BSS AR-133 and Millenium DI-33 DI boxes compared (No Audio Tests!)

Video thumbnail for BSS AR-133 and Millenium DI-33 DI boxes compared (No Audio Tests!) by reqordist

BSS AR-133 and Millenium DI-33 DI boxes compared (No Audio Tests!)

reqordist

reqordist

Reviews

PROS

  • Affordable alternative to high-end DI boxes

  • Clear sound without noise or color alteration

  • Sturdy, compact, and lightweight design

  • Versatile power options: phantom power or battery

  • Switchable 20dB attenuation and ground lift features

  • Thru output for simultaneous stage amp and mixer use

  • Reliable for both live and studio applications

  • Durable construction withstands rough handling

  • Quick solution for connectivity issues with various instruments

  • High value for the price

CONS

  • Battery compartment difficult to access

  • Occasional quality control issues require DIY fixes

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Millenium DI-33.

Features and functionality

  • The Millenium DI-33, like other active DI boxes, may not require a battery if the interface provides adequate power through other means.

    Source
  • The Boss Katana can be used as an interface, eliminating the need for a separate DI box or splitter for Rocksmith.

    Source

Use cases and applications

  • Active DI boxes are often recommended for passive guitars to address impedance mismatch and avoid thin, lifeless sound without additional amplification.

    Source

User experience

  • Some users mistakenly believe active DI boxes are necessary for passive guitars, overlooking that passive DIs can suffice with good preamps to maintain sound quality.

    Source
  • Owners report using the Katana's Aux In to play Rocksmith audio through the amp, achieving zero latency when hearing the guitar direct.

    Source

Comparisons

  • The Behringer UMC204HD offers more connectivity and lower noise preamps compared to the Focusrite Solo, making it a better value choice.

    Source

Setup and maintenance

  • Users with single-coil pickups report needing a boost box to improve game signal response.

    Source

Mods and upgrades

  • RS_ASIO mod enables seamless integration of the Boss Katana with Rocksmith, bypassing the need for a Real Tone Cable.

    Source

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Genre Usage

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Used With

Based on how musicians on Equipboard use Millenium DI-33, it is most commonly used with the following gear.

Community setups

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lincolnpires

lincolnpires

Gear IQ 131

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