SoundTube HV121-II 12-Inch Ported Subwoofer

SoundTube HV121-II 12-Inch Ported Subwoofer

The PhaseTech HV121-II is a high-performance 12" ported subwoofer, part of Phase Technology’s acclaimed entry-level HV series. Its mineral-filled polypropylene woofer and integrated 150 W amplifier deliver clean, controlled bass down to 22 Hz, making it ideal for home theaters, commercial spaces, and discreet installations.

Finished in durable black powder-coat and certified RoHS compliant, the HV121-II blends reliability with refined acoustics. A variable low-pass crossover (50–250 Hz) and LFE bypass let you tailor the sub’s output to any system, while RCA inputs ensure seamless connectivity.

Key Features

• Driver: 12" treated pulp cone with NBR surround
• Amplifier: 150 W RMS class-D with variable low-pass (50–250 Hz) and LFE setting
• Frequency Response: 22 Hz–250 Hz (± 3 dB)
• Max Program Power: 150 W
• Enclosure: Ported design for extended low-end output
• Inputs: Stereo RCA + LFE
• Finish: Black powder-coat
• Included: External power supply
• Certifications: RoHS

Technical Specifications

• Crossover: 50–250 Hz variable, 24 dB/octave + LFE bypass
• Driver Complement: 12" polypropylene woofer w/ NBR surround
• Source Inputs: RCA
• Color: Black

What’s Included

• HV121-II Subwoofer
• External power supply
• Owner’s manual & CE certification