Sundown Audio SA-3M 3" Midrange Speaker 30W RMS

Sundown Audio SA-3M 3" Midrange Speaker 30W RMS (SA3M)

The SA-3M is a 3" midrange from Sundown Audio's 2025 SA speaker series, built for sound quality systems. It uses a woven carbon fiber cone, a ferrite motor with a neodymium pole cap magnet, and a long-stroke suspension designed for low distortion. It can play full range, but Sundown suggests pairing it with a tweeter such as the SA-1T in a three-way setup. Sold as a pair with metal grilles.

Features

• Woven carbon fiber cone and dust cap
• 4.5 mm one-way linear excursion (70% BL) and 8 mm mechanical excursion from a custom tooled frame
• Copper pole sleeve and aluminum shorting ring to lower inductance and extend high-frequency output
• 28 mm extra-long voice coil handles 150W RMS with a 300 Hz high-pass
• Surround and spider developed with FEA simulation and Klippel testing
• Fits three-way systems with the SA-1T tweeter and SA-6.5M or SA-8M
• Sold as a pair; metal grilles included

Specs

• Size: 3"
• RMS power (full range): 30W
• RMS power (high-pass at 300 Hz and up): 150W
• Nominal impedance: 4 ohm
• Sensitivity (1W): 84.5 dB
• Fs: 134.8 Hz
• Re: 3.09 ohm
• Qms: 10.55
• Qes: 0.84
• Qts: 0.78
• Vas: 0.49 L
• X-max: 6 mm
• Voice coil diameter: 28 mm
• Nominal diameter: 3.34"
• Outer diameter: 3.60"
• Cutout diameter: 3.03"
• Mounting depth: 1.90"
• Cone: woven carbon fiber
• Surround: rubber
• Basket: aluminum
• Magnet: ferrite with neodymium pole cap
• Quantity: pair, metal grilles included

Professional installation available at Tunes & Tint in Amarillo.