Cicada Audio CMB10.S4 — 10" High-Power Motorcycle Mid-Bass Driver (4Ω, 800W RMS)

10″ ferrite mid-bass driver for Harley Touring — Y30 ceramic motor, 800W RMS, same output capability as the NEO at a more accessible price point

The Cicada Audio CMB10.S4 is a 10-inch mid-bass driver built for high-output bagger systems. A Y30 ferrite ceramic motor and 3-inch 6-layer Black Coat™ OFC voice coil deliver 800W RMS / 1,600W MAX power handling in a heavy-duty die-cast aluminium basket with advanced thermal management. Proven output, motorcycle-grade construction, and the same core power rating as the neodymium CMB10.S4NEO — at a lower price. Sold individually.

The CMB10.S4 is the ferrite-motor version of the CMB10 range. It shares the same 800W RMS rating, 4Ω impedance, 3-inch 6-layer Black Coat™ OFC voice coil, and die-cast aluminium basket as the neodymium CMB10.S4NEO — the difference is the motor. The S4 uses a Y30 ferrite ceramic magnet structure: heavier than the N42 neodymium slug in the S4NEO, but a more cost-effective route to 800W RMS mid-bass. If total system weight is not a constraint, the CMB10.S4 delivers the same output performance for less.

Who This Is For

Riders building a high-output 10-inch mid-bass stage on a Harley-Davidson® Touring model where the priority is maximum output at the best price point, and where the additional weight of a ferrite motor is not a concern. The CMB10.S4 suits saddlebag builds, Tour-Pak enclosures, and SPL-style systems where 800W RMS is genuinely being used. If you're building into stretched lids or a weight-sensitive enclosure where every kilogram matters, see the neodymium CMB10.S4NEO.

What This Is Best For

• 800W RMS mid-bass output at a lower entry price — The Y30 ferrite motor and 3-inch 6-layer Black Coat™ OFC voice coil deliver the same 800W RMS / 1,600W MAX power handling as the neodymium CMB10.S4NEO. The ferrite motor is heavier, but it produces the same magnetic flux and drives the same voice coil in the same gap. If the weight difference between ferrite and neodymium is not a factor in your build, the CMB10.S4 gets you to the same output for less. On the road: 800W RMS of mid-bass authority — chest-punching output at highway speed — without the premium of a neodymium motor.
• 3-inch Black Coat™ OFC voice coil for sustained power — The 76mm 6-layer OFC winding maximises conductor cross-section in the gap, producing high current capacity and low DC resistance. Black Coat™ improves thermal conductivity between the coil and the former, allowing heat generated under sustained high-power use to conduct away from the gap more efficiently than an untreated coil. The result is a sustained 800W RMS rating, not a peak figure the driver can only hold for a few seconds. On the road: consistent mid-bass output over a long run at high volume — no thermal compression during the best stretch of road.
• 35 Hz – 1.8 kHz frequency response covering the full mid-bass band — The CMB10.S4's usable range covers deep mid-bass from 35 Hz through to 1.8 kHz — wide enough to cover the upper bass frequencies that give a system its punch at highway speed, and to hand off cleanly to a saddlebag or fairing tweeter at the crossover point. On the road: a mid-bass stage that delivers impact across the full frequency band that matters for Harley touring audio — not just bass rumble, but the punch and body in the 100–400 Hz range where you feel it most.
• Vented voice coil gap and advanced heat-sink design — The vented voice coil gap circulates air through the motor as the cone moves, removing heat that would otherwise accumulate during extended high-power use. The advanced heat-sink architecture at the motor provides additional thermal mass and surface area for heat dissipation. Together, these systems keep the coil temperature manageable over the kind of sustained operation that high-power motorcycle audio systems actually see. On the road: a 10-inch driver that handles four hours of heavy use — not just a 30-minute demo.
• Heavy-duty die-cast aluminium basket — The basket is die-cast aluminium — rigid enough to maintain consistent gap geometry under the vibration loads a motorcycle chassis generates, and dimensionally stable across a wide temperature range. A basket that flexes under vibration lets the voice coil move off-axis in the gap, increasing distortion and accelerating coil wear. Die-cast construction prevents that. On the road: consistent driver geometry and consistent sound quality over years of use on a bike — not just when new.

Fitment

The Bottom Line

The CMB10.S4 is 800W RMS of 10-inch mid-bass in a motorcycle-grade ferrite-motor driver — proven output, heavy-duty construction, and a direct price advantage over the neodymium alternative. Pair with a FLX1400.4 running bridged channels, or a dedicated FLX1600.1 mono for a high-power dedicated mid-bass channel. For the neodymium version where weight matters, see the CMB10.S4NEO. Available at MAA as Australia's authorised Cicada Audio dealer.