The C12-S3500 Champions subwoofer is high performance and build quality for reproducing deep breath-taking bass at high SPL levels. The die-cast basket with anti-resonance coating makes the Champions line one of the most reliable to date. High-temperature, 4" BASV voice coil with a frame made of black anodized aluminum with a winding height of 75mm. The subwoofer is capable of delivering the highest sound pressure and power compared to competitors in the top price segment due to the modern design of the driver, which includes: ultra-strong carbon sandwich cone and cap, coupled with a long-stroke rubber “High Roll” surround with super-strong gluing for maximum mechanical load capacity. Triple 500 Oz ferrite magnet of class Y30 with a closed core with grooves for maximum heat dissipation efficiency and stable subwoofer operation. The Champions subwoofer is designed to maximize reliability and efficiency, making it ideal for SPL competitions and for fans of super-powerful bass.

Thiele-Small parameters

Xmax, mm: 23
Re, Ohm: 2+2
Fs: Hz: 32.7
Le, mH at 1 kHz: 2.35
Vas, l: 7.72
Qts: 0.76
Qes: 0.86
Qms: 6.69
SPL (1m/1V), dB: 87.3
BL, Tm: 27.79
CMS, µm/N: 19.3
Mms, g: 542
Mmd, g: 527
Sd, cm²: 527

4-inch dual high temperature voice coil
Dual 4" 4-layer BASV high-temperature voice coil with black anodized aluminum former wounded with 75mm height with flat aluminum wire. The voice coil with higher performance characteristics, which increases the endurance and durability of the subwoofer in everyday use. The double voice coil means double power, double efficiency and excellent result!

Massive ferrite magnet with high cooling performance
Triple ferrite 500 Oz magnet with closed T-Yoke with grooves for maximum heat dissipation efficiency and stable operation.

Carbon competition-grade cone and dust-cap
Featuring the ultra-strong carbon sandwich cone and dust-cap, coupled with a high excursion “High Roll” rubber surround with heavy-duty bonding for ultimate mechanical load capacity, the Champions subwoofer is created to maximize reliability and efficiency, making it ideal for SPL competitions and for enthusiasts of extreme bass.

Triple progressive spiders with silver-plated thick stitched tinsel leads
Two progressive triple-layer spiders with silver-plated leads are specially designed to eliminate asymmetry of surround and cone and non-linearity of the voice coil travel in the magnetic gap under heavy SPL loads.

Specifications

Specifications

• Basket material: Die-cast aluminum
• RMS power: 3500 W
• Sensitivity: 87 dB
• Impedance: 2+2 Ω Ohm

Model features

• Voice coil size: 4" (101 mm)
• Cone: Carbon
• Surround material: rubber suspension “High Roll”
• Magnet: Triple high-density ferrite magnet class Y30
• Frequency range: 30 - 300 Hz

General details

• Basket: Die-cast aluminum
• Size: 12" (30 cm)
• Mounting hole diameter: 283 mm
• Mounting depth: 278 mm
• Overall depth: 309 mm
• Outer diameter: 326 mm
• Speaker terminals: Spring-loaded terminals
• Weight: 49 kg

Support