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The PM-50 offers an audiophile-grade listening experience to music enthusiasts in a luxurious, yet reasonably-priced package.

What are the PM-50 Planar Headphones?

The PM-50 takes full advantage of Planar Magnetic benefits to provide a balanced presentation across the musical spectrum. The combination of the open-back design, and Planar Magnetic technology results in reproduction devoid of the resonances and coloration inherent in common closed-back dynamic driver headphones. The inherent wide-range capability of Planar Magnetic technology results in a coherent audio singularity that totally eliminates the inevitable phase distortions caused by the crossover networks of multi-driver headphones. The result is an open, natural sound that is as true to the original performance as possible.


"The PM-50s pack a lot of value, with great comfort, precision build quality, and superb sound for their reference-grade magnetic drivers. We're excited to introduce the PM-50s as the first of many Andover products into the critical-listening headphones space."
- Bob Hazelwood (Andover Chief Engineer)

The PM-50 Headphones are driven by any source including smartphones, portable music players, DACs, traditional audio systems, and dedicated headphone amplifiers.

PM-50 Planar Headphones

  • Andover Audio warrants products against manufacturing defects and workmanship to the initial purchaser for a period of two (2) years from the date of delivery to customer. Andover Audio will repair or replace the unit as necessary to restore proper operation. This warranty covers both parts and labor for the warranty period. The warranty excludes physical damage caused by accident or abuse outside of our control. It also excludes turntable belts and phono-cartridge styli.

    If you think you need warranty service, please contact us to obtain an RMA (Return Merchandise Authorization) by contacting

    Please visit our website’s support section for more information about returns and exchanges.

  • Design

    • Headphone Style: Over-Ear

    • Enclosure: Genuine Walnut Hardwood

    • Ear-Cushions: Two Sets

    • Cable: Removable / Upgradable


    • Headphone Impedance Rating: 32 ohms

    • Frequency Response Range: 15Hz - 50kHz

    • Driver Sensitivity: 102dB/1mW

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