| Size | 5.25 · Coaxial |
| Impedance | 4 Ohm |
| Power | 75W RMS |
| Year Range | 1998-2013 |
| Location | Fairing |
The 4Ω 5.25" fairing speaker for amplified Harley Touring — direct replacement for front fairing and Tour-Pak® positions.
The MAS.524 is Precision Power's 5.25" 4Ω fairing coaxial for Harley-Davidson® Touring models with 5.25" speaker positions — the amplified-build variant of the MAS.522, built for external amplifier channels where load stability and thermal margin matter. 75W RMS, 92 dB sensitivity, polypropylene cone with Santoprene surround, 1" titanium dome tweeter. Direct-fit into factory 5.25" fairing and Tour-Pak® pods without modification. Sold in pairs.
Same acoustic build as the MAS.522. Same polypropylene cone, titanium dome tweeter, glass fibre-reinforced ABS basket, and neodymium motor. The 4Ω impedance is what changes — and it changes which amplifier configurations this speaker belongs in.
Who This Speaker Is For
Riders running or planning an external amplifier on Harley-Davidson® Touring models with 5.25" fairing or Tour-Pak® speaker positions. The 4Ω load gives compact motorcycle amplifiers a stable, thermally efficient front channel to drive — particularly important in multi-channel builds where the amplifier is simultaneously driving rear saddlebag or Tour-Pak® channels. For bridged-amp configurations, the 4Ω impedance is the only safe choice: bridging halves the impedance the amplifier sees, so a 4Ω speaker on a bridged channel presents a 2Ω load — the minimum stable impedance for most quality amplifiers. For factory-radio builds without an external amplifier, the MAS.522 is the 2Ω variant.
What This Is Best For
- Amplified fairing and Tour-Pak® front stage: The 4Ω impedance gives compact motorcycle amplifiers a stable, thermally efficient front channel to drive. For Class-D motorcycle amplifiers running two or four channels simultaneously, 4Ω reduces current draw per channel and lowers thermal output in the output stage — allowing the amplifier to maintain rated power output through a full touring day without throttling to protect itself.
- Bridged-amp front stage: When an amplifier runs in bridged mode, it halves the impedance it sees: a 4Ω speaker on a bridged channel presents a 2Ω load — the minimum stable impedance for most quality motorcycle amplifiers. Running a 2Ω speaker bridged presents a 1Ω load, below safe operating limits. The MAS.524 is the correct fairing speaker for any bridged configuration.
- Multi-channel touring builds: In a 4 or 6-speaker Harley touring system, 4Ω front speakers provide clean gain structure across all channels and more configuration options at the amplifier. When the front fairing stage is matched in impedance to the rear saddlebag or Tour-Pak® channels, the system is easier to balance and the amplifier runs cooler overall.
- Direct-fit with no modification: The MAS.524 drops straight into factory 5.25" speaker mounting positions with no cutting, no adapter plates, and no modification to factory openings. The 50.8mm (2.0") mounting depth clears the tight spaces behind fairing and Tour-Pak® pods on Harley Touring models.
Before You Order — Confirm Your Speaker Size
Harley-Davidson® Touring models use both 5.25" and 6.5" fairing speaker positions depending on the model and year. Verify your fairing pod accepts a 5.25" speaker before ordering — if your pods take a 6.5" driver, see the MAS.654 (4Ω) or MAS.652 (2Ω).
Running on factory radio power only? The MAS.522 (2Ω) is the factory-radio variant — the lower impedance draws more current from the head unit and produces more output without an external amplifier. If you're not sure which impedance suits your setup, contact Motorcycle Audio Australia before ordering.
The Bottom Line
A properly engineered 5.25" fairing and Tour-Pak® coaxial for amplified Harley Touring builds — 75W RMS, 92 dB sensitivity, titanium dome tweeter, and a polypropylene cone and Santoprene surround built to last in the conditions a motorcycle speaker actually faces. The 4Ω impedance gives external amplifiers a stable, thermally efficient load and is the only safe choice for bridged-amp configurations. The drop-in fit means installation is a speaker swap, not a modification project. For factory-radio builds, see the MAS.522 (2Ω).
What's Inside the MAS.524
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. In an amplified build, the speaker is receiving more power and generating more heat than in a factory-radio system. 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 amplified volume in an enclosed fairing on a hot day, the aluminium former keeps voice coil temperature in check — maintaining consistent power handling and output across long riding sessions.
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 the higher output levels an amplified build delivers. On the road: the titanium dome handles the power levels an amplified build puts into it and maintains its acoustic character through weather and seasons. The clarity you hear on the first amplified ride is the clarity you get three summers later.
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.524 converts amplifier power to acoustic output efficiently. In an amplified build, sensitivity and amplifier output work together: a higher-sensitivity speaker produces more volume from the same watt than a lower-sensitivity alternative. The 4Ω impedance is the design operating point for most external motorcycle amplifiers in stereo — it provides the correct load for the amplifier's output stage and gives better thermal margin than a 2Ω load at the same power level.
4Ω — What It Means for Your System
External amplifiers are designed around an output impedance that their output stage drives efficiently and safely. Most quality motorcycle amplifiers are rated at both 4Ω and 2Ω in stereo, and at 2Ω in bridged mode. The 4Ω stereo operating point produces less heat and draws less current from the electrical system than 2Ω — giving the amplifier more thermal headroom for sustained operation. In bridged mode, the 4Ω speaker presents a 2Ω load to the amplifier — the minimum rated impedance for the bridged configuration, and the safe lower limit that keeps the amplifier out of thermal protection under sustained use. Running a 2Ω speaker in bridged mode would present a 1Ω load — below the safe operating limit for most amplifiers. The MAS.524 is the correct fairing speaker for any bridged-amp configuration. For factory-radio builds, see the MAS.522 (2Ω).
Fitment
The MAS.524 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.
| Model | Position | Years |
|---|---|---|
| Street Glide® | Front fairing & Tour-Pak | 1998–2013 |
| Road Glide® | Front fairing & Tour-Pak | 1998–2013 |
| Electra Glide® | Front fairing & Tour-Pak | 1998–2013 |
| Ultra Classic® / Ultra Limited | Front fairing & Tour-Pak | 1998–2013 |
Technical Specifications
| Speaker Configuration | 5.25" 2-way coaxial |
| Impedance | 4Ω nominal |
| Power Handling (RMS) | 75W RMS |
| Power Handling (Peak) | 150W |
| Sensitivity | 92 dB (1W/1m) |
| Frequency Response | 60Hz – 22kHz |
| Tweeter | 1" titanium dome, wide-dispersion |
| Tweeter Crossover | Integrated 6dB high-pass |
| Voice Coil | 31.75mm (1.25") oxygen-free copper on aluminium former |
| Motor | Neodymium |
| Cone | UV-resistant polypropylene with co-moulded Santoprene surround |
| Basket | Glass fibre-reinforced ABS |
| Mounting Depth | 50.8mm (2.0") |
| Quantity | Pair |
| Warranty | 1 year through Motorcycle Audio Australia |
In the Box
- Precision Power MAS.524 5.25" 4Ω coaxial speakers — pair
Australia Shipping:
- Under $500 → $19.95
- $500–$2,500 → $14.95
- Over $2,500 → FREE
- Bulky items → +$24.95 surcharge (waived over $2,500)
Fast dispatch from Brisbane. Same-day shipping on in-stock orders before 1pm AEST.
Change-of-mind returns: We accept returns within 7 days of delivery on unused, unopened products in original sealed packaging. Restocking fees apply (20–30%). Return shipping is the customer's responsibility.
No returns on opened audio gear, installed items, custom orders, or special-order products. Please check fitment carefully before installing.
Faulty or incorrect items: If you experience an issue, contact us with photos/video and your order number. We'll assess the claim and arrange repair, replacement, or refund for verified faults under the Australian Consumer Law.
Fitment assistance: If you're unsure about compatibility, reach out before ordering—we're happy to help.