Precision Power MAS.522 – 5.25" 2-Ohm Motorcycle Speakers

What's Inside the MAS.522

The cone is UV-resistant polypropylene, co-moulded with a low-density Santoprene surround through a chemical bonding process – not mechanical joining. Polypropylene is impermeable: road spray, humidity, and condensation do not affect its acoustic properties or structural integrity. Santoprene holds its compliance across the temperature extremes a fairing or Tour-Pak pod creates – from cold morning starts to sustained summer heat – without the degradation that affects foam surrounds over time. On the road: the speaker's acoustic behaviour in rain or summer heat is the same as on a dry winter morning. No compliance shift, no cone sag – consistent response across the seasons.

The 1.25" (31.75mm) oxygen-free copper voice coil is wound on a thermally absorbent aluminium former. Aluminium conducts heat away from the voice coil windings faster than paper or Kapton – transferring it to the air gap and basket, where it can dissipate. The neodymium motor delivers a high magnetic flux density in a low-mass package – the field strength needed for 92 dB sensitivity without the bulk and weight of a ferrite motor. On the road: at sustained volume on a long touring day, the aluminium former keeps voice coil temperature in check – maintaining consistent power handling and output through the ride.

The tweeter is a 1" titanium dome – rigid, low-mass, and thermally stable. Titanium moves quickly and accurately at high frequencies without the breakup modes that limit softer dome materials. It resists UV degradation, moisture, and temperature cycling better than fabric domes – which soften in the heat and exposure of a motorcycle fairing over time. An integrated 6dB high-pass crossover rolls off low frequencies before they reach the tweeter, protecting it from excursion damage at high output levels. On the road: the titanium dome maintains its acoustic character through weather and seasons. The clarity you hear on the first ride is the clarity you get after three summers in the fairing.

The glass fibre-reinforced ABS basket provides the structural rigidity to handle vibration transmitted through the fairing and Tour-Pak pod directly into the speaker frame – keeping the motor and cone assembly aligned across extended high-volume riding.

Sensitivity and Impedance

At 92 dB (1W/1m), the MAS.522 converts source power to acoustic output efficiently. In a factory-radio build where output is fixed, every decibel of sensitivity is front-stage volume you do not have to generate with more power. The 2Ω impedance compounds this: by drawing more current from the source at a fixed voltage, the MAS.522 produces more acoustic output than a 4Ω replacement at the same sensitivity – a meaningful volume increase over stock 5.25" speakers without adding an amplifier.

2Ω – What It Means for Your System

At fixed source voltage, power delivered to the speaker is determined by the speaker's impedance: halving the impedance doubles the current and doubles the power. A 2Ω speaker draws twice the current of a 4Ω replacement at the same source voltage – extracting more power and producing more acoustic output. This is the correct impedance for factory-radio builds and most compact motorcycle amplifiers. If an external amplifier is in the system in a bridged configuration, confirm impedance compatibility before ordering – bridging halves the impedance the amplifier sees, and a 2Ω speaker on a bridged channel presents a 1Ω load below the safe operating limit of most amplifiers. In that case, the MAS.524 (4Ω) is the correct choice.

Fitment

The MAS.522 drops straight into factory 5.25" speaker mounting positions on Harley-Davidson Touring models – no modification or adapters required. Confirm your fairing pod accepts a 5.25" driver before ordering; some Touring models use 6.5" fairing positions.

Technical Specifications

In the Box

• Precision Power MAS.522 5.25" 2Ω coaxial speakers – pair