No it hasn't. Model number 300-633 and 300-635. Are you going to the Parts Express website in Dayton, Ohio?
The Dayton Audio SUB-120 is the perfect subwoofer for medium to elarge home theaters or listening rooms. A 150 watt amp, long-throw front firing 12" driver, and dual rear ports produce impressively deep and powerful bass. Since the ports are rear-mounted and feature a flared design, air turbulence at high listening levels is minimized for the cleanest sound. The amplifier features high and low level inputs, filtered high and low level outputs, phase switch, volume control, auto on/off (activated by an input signal) and a variable 12dB/octave electronic low pass filter. This subwoofer reproduces serious low-frequency bass that will rival the performance of much more expensive subwoofers.
Specifications: *12" long throw woofer *150 watt amp *Low pass filter: 40 - 180Hz 12dB/octave *Frequency response: 25 - 180Hz *Exterior dimensions: 14-3/4" W x 17-3/4" H x 18" D.
* House shaking power
* Front firing long throw woofer
* Unobtrusive "Black Ash" finish
The Dayton Audio SUB-100 is the perfect subwoofer for small to medium sized home theaters or listening rooms. A 125 watt amp, long-throw front firing 10" driver, and dual rear ports produce impressively deep and clean bass. Since the ports are rear-mounted and feature a flared design, air turbulence at high listening lvels is minimized for the cleanest sound. The amplifier features high and low level inputs, filtered high and low level outputs, phase switch, volume control, auto on/off (activated by an input signal) and a variable 12dB/octave electronic low pass filter. Despite its small size, this subwoofer plays serious low-frequency bass that will rival the performance of much more expensive subwoofers.
Specifications: *10" long throw woofer *125 watt amp *Low pass filter: 40 - 180Hz 12dB/octave *Frequency response: 30 - 180Hz *Exterior dimensions: 14-3/4" W x 16-1/2" H x 15-3/4" D.