Millenium HP4

$83.00 Price Tier: Budget

All time low price

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Page last updated Jun 13, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated May 7, 2026.

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Reviews

Price

4.2 (598)

$83.00

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Average Price: $77

Budget/Beginner

$100

$301+

Price Tier

In the Headphones & In-Ear Monitors category, Millenium HP4 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 HP4". Prices shown reflect NEW condition. Tracking began Apr 19, 2026.

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Description

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Elevate your audio experience with the Millenium HP4, a versatile headphone amplifier perfect for musicians and audio engineers seeking precision and clarity. This powerhouse device offers 4 independent stereo inputs, each with its own unsymmetrical jack socket, ensuring you can manage multiple audio sources seamlessly. Whether you’re in a recording studio or on stage, the HP4 allows for individual volume control on every channel, giving you the flexibility to tailor sound to your exact preference.

Designed with practicality in mind, the Millenium HP4 is easily expandable, allowing up to four units to be linked together for larger setups. Its double-regulated power supply and voltage selector make it adaptable to various power conditions, ensuring reliability and consistent performance wherever you are. Compact in design, this unit fits neatly into a 19" rack space, making it a convenient addition to any professional audio setup.

Key Features:

4 independent stereo inputs with unsymmetrical jack sockets
Separate volume control for each channel
Easily expandable; up to 4 devices can be operated together
Shielded internal double-regulated power supply with voltage selector for 115V / 60Hz or 230V / 50Hz
Compact design: 19", 1 U rack space

Owner's manual

Millenium HP4 User Manual

Product specs

Available since	January 2010
Number of stereo channels	4
Output Level Adjustment Per Channel	Yes
Amount Of Inputs	4
Rack format	Yes

FAQs

How many headphones can be connected to the Millenium HP4 at once?: The Millenium HP4 can connect up to four headphones simultaneously, as it features four stereo channels for individual headphone outputs.
Can the output level be adjusted individually for each channel on the Millenium HP4?: Yes, the Millenium HP4 allows for individual output level adjustment for each of its four channels, providing personalized volume control for each connected headphone.
Does the Millenium HP4 fit in a standard rack setup?: Yes, the Millenium HP4 is designed in a rack format, making it suitable for integration into standard rack setups for studio or live sound environments.
How many input sources can the Millenium HP4 accommodate?: The Millenium HP4 can accommodate four input sources, allowing for multiple audio feeds to be monitored simultaneously.
Since when has the Millenium HP4 been available on the market?: The Millenium HP4 has been available since January 2010, making it a well-established option for headphone distribution in professional audio settings.

Reviews

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PROS

Perfect feature set for converting bands to wired in-ear monitors
Four stereo inputs and headphone preamps for versatile mixing
Allows engineers to quickly listen to other members' mixes without repatching
Simplified design with just 'source select' and 'volume' control
Easy to set up for multiple monitor routes in home studios

CONS

Left and right inputs are reversed, confusing setup
Inputs are not balanced, susceptible to noise interference from nearby electronics
On/off switch inconveniently located on the back
Some units may have durability issues, like blown capacitors
Can be quite noisy, affecting audio quality

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Millenium HP4.

Features and functionality

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The Millenium HP4 is noted for its affordability and essential features needed for a headphone amplifier in small band setups.
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The Millenium HP4 allows for mono-summing across its four outputs, providing flexibility in mixing for various band members' needs.
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Setup and maintenance

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Utilizing a headphone amp like the Millenium HP4 can prevent battery issues that occur with battery-powered belt packs, ensuring uninterrupted rehearsals.
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Use cases and applications

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The Millenium HP4 is recommended for small rehearsal spaces, effectively meeting the needs of indie pop bands with multiple vocal and instrumental inputs.
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The HP4's ability to select between four inputs and outputs makes it suitable for quick adjustments during live sets, especially if an input fails.
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Comparisons

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Portable options like the Behringer P1 or P2 are suggested for bands on the move, contrasting with the stationary rack-mount design of the Millenium HP4.
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While not mentioned directly, the HP4's functionality is compared indirectly to setups requiring multiple headphone amplifiers, emphasizing its efficiency in small setups.
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User experience

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Owners note that the Millenium HP4 introduces a minimal amount of noise, which is considered acceptable for rehearsals and live performances.
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