The mounting dimension is shallow, but the response is deep! Dayton Audio's NS Series offers new possibilities for installing low distortion, high output sub drivers. As little as 2-1/2" in depth (NS210-44 8"), these heavy duty neodymium transducers are perfect for mounting in walls, floors, and even ceilings, as well as stealthy mobile audio applications. The performance characteristics alone will convince you to use NS Series subs—even when space is not an issue! Specifications: *Power handling: 250 watts RMS/500 watts max *VCdia: 2" *Le: 0.91 mH *Impedance: 2 ohms *Re: 1.85 ohms *Frequency range: 30-300 Hz *Fs: 32 Hz *SPL: 93 dB 2.83V/1m *Vas: 1.41 cu. ft. *Qms: 4.58 *Qes: 0.42 *Qts: 0.39 *Xmax: 7 mm *Dimensions: A: 10-1/4", B: 9-3/8", C: 3-3/16". Note: All specifications are with voice coils connected in parallel.

    * Low profile design
    * Die-cast frame
    * Rigid flat honeycomb fiberglass cone
    * Dual 4 ohm voice coils
    * Powerful neodymium motor
    * High excursion capability provides solid bass/less distortion
    * Inverted deep-roll rubber surround
    * Excellent power handling—without exceeding Xmax