Pioneer's TS-W261D4 Champion Series Subwoofer is the perfect additional to your stereo system that surely packs a punch with 1,200 Watts Peak Power handling, abd 350 Watts RMS power. The TS-W261D4 utilizes a highly rigid, fully-enclosed, single piece basket, derived from our world-record holding SPL competition subwoofers, to help minimize the vibration throughout the subwoofer and increase the driving force to the cone, producing louder and rhythmical bass. Improved stiffness of the basket provides for less sound leaks creating more clear and powerful bass. With this subwoofer, engineers re-designed the spider assembly to allow the subwoofer to produce more accurate and rich bass. Taking notes from our high-end SPL competition and Reference Series speakers, the spider is now assembled onto the spider holder rather than directly on to the basket. Since the cone is also assembled onto the basket which can cause additional vibration, the independent structure of the spider holder helps minimize vibration coming from the cone. This improves playback response, sound outline, and provides high linearity. All fast moving parts and friction will create heat and too much heat creates unwanted audio results. The TS-W261D4 is designed with ventilation holes to improve air flow and release heat keeping the piston cool for better performance. 

General Features:

• Size: 10 -inch
• Impedance: 2 ohms or 8 ohms
• Cone Material: IMPP
• Surround Material: Fiber Reinforced Polymer
• Ideal Sealed Box Volume (cubic feet): 0.8
• Ideal Ported Box Volume (cubic feet): 1.1
• Port diameter (inches): 3
• Port length (inches): 7
• Free-Air: No
• Dual Voice Coil: Yes
• Sensitivity: 93 dB at 1 watt 
• Frequency Response: 20 - 125 Hz
• RMS Power Range (Watts): 350
• Peak Power Handling (Watts): 1200
• Top Mount Depth (inches): 5 1/2
• Bottom Mount Depth (inches): N/A
• Cutout Diameter or Length (inches): 9 1/8
• Vas (liters): 17.7
• Fs (Hz): 46
• Qts: 1.04
• Xmax (millimeters): 10.1