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Infinity PS28 Powered subwoofer (Black grille)

Item # 108PS28BG

Enjoy hard-hitting, accurate bass with the PS28 from Infinity.

Enjoy hard-hitting, accurate bass with the PS28 from Infinity.

Item # 108PS28BG

Shop all Infinity Powered Subwoofers

About the Infinity PS28

Loren Barstow
Enjoy hard-hitting, accurate bass with the PS28 from Infinity. This capable sub features an 8" woofer powered by a 150-watt amp to add impact and realism to all of your movies, music, and video games. Easily accessible controls on the back of the cabinet make it a cinch to add as little or as much bass as you like, and to blend the sub in with the rest of your system.

Enjoy hard-hitting, accurate bass with the PS28 from Infinity. This capable sub features an 8" woofer powered by a 150-watt amp to add impact and realism to all of your movies, music, and video games. Easily accessible controls on the back of the cabinet make it a cinch to add as little or as much bass as you like, and to blend the sub in with the rest of your system.

Infinity's lightweight and responsive M.M.D. driver material uses a stiff aluminum core for added rigidity. That means that the woofer keeps its shape as it moves, for rich and detailed lows.

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Product highlights:

  • bass-reflex (ported) cabinet design
  • 150-watt RMS amp
  • 8" front-firing driver
  • frequency response 35-150 Hz (±3dB)
  • continuously variable 50-150 Hz crossover
  • phase switch
  • line-level stereo and LFE inputs
  • auto on/off
  • black woodgrain vinyl finish
  • 10-5/8"W x 17-3/4"H x 16-15/16"D
  • warranty: 5 years driver, 3 years electronics
  • MFR # PS28BK

What's in the box:

  • Black powered subwoofer with attached 69" AC power cord
  • Black cloth grille (removable)
  • Owner's Guide

Customer reviews for Infinity PS28

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4.5 out of 5 stars
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More details on the Infinity PS28

Stacey B.

Features & specs

Enclosure Bass Reflex
Woofer Size (inches) 8
Woofer Composition M.M.C.
Firing Direction Front
Amplifier Output (watts) 150
Frequency Response 35-150 Hz
Connections
Preamp-Level Inputs Yes
Speaker-Level Inputs No
Speaker-Level Outputs No
Wireless No
Controls
Low-Pass Crossover Freq 50-150Hz
High-Pass Crossover Freq N/A
Phase Switch Yes
App Control ---
Remote ---
Other Info
Height (inches) 17-3/4
Width (inches) 10-11/16
Depth (inches) 16-15/16
Weight 31.7 lbs
Speaker Parts Warranty 5 Years
Speaker Labor Warranty 5 Years
Amplifier Parts Warranty 3 Years
Amplifier Labor Warranty 3 Years

Product Research

Features
Controls
Connections

Features

Metal Matrix Diaphragm (M.M.D.): Derived from the C.M.M.D. material used in Infinity's flagship Cascade series, M.M.D. features a stiff aluminum core, anodized on both sides for increased strength and rigidity. M.M.D. transducers conduct sound faster than paper, polypropylene, and Kevlar, pushing unwanted resonances beyond the operating range of the transducer. M.M.D. drivers deliver crystal-clear, distortion-free sound from dynamic digital sources, even at high listening levels. The PS28 is equipped with a front-firing, 8" M.M.D. woofer.

Amplifier: This subwoofer is powered by a 150-watt (RMS) amplifier, rated at 35Hz - 150Hz with no more than 0.1% THD. The maximum (peak) power output is 300 watts.

Surround: For a smoother response and improved durability, the woofer uses a rubber surround.

Bass Ports: There are two rear-firing bass ports that allow deep bass with high acoustic efficiency and low distortion.

Controls

Gain Control: The subwoofer has a rotary control on the rear panel for adjusting the level of the bass.

Phase Switch: The subwoofer's phase switch allows you to control the phase of the subwoofer's output relative to the front speakers. If the bass sounds muddy or unclear, toggling the phase control can sometimes strengthen the bass "attack."

Auto On/Off Circuit: The auto on/off circuit turns the power amp on when a signal is sensed and turns the amplifier off and into standby mode approximately 10 minutes after a signal is no longer received. An LED indicator on the rear panel glows green when the amplifier is on and red when the amp is in standby.

Low-Pass Crossover: The subwoofer features a continuously variable 50Hz-150Hz low-pass crossover that determines the highest frequency at which the subwoofer reproduces sounds. The crossover has a 24dB/octave slope. Note: The crossover is bypassed when the "LFE" input is used.

Connections

Line-level Inputs: The subwoofer has a gold-plated LFE input (single RCA) and gold-plated stereo RCA inputs. If you have a Dolby Digital/DTS receiver or processor with a low-frequency-effects (LFE) output, you should use the LFE input on the subwoofer. If your receiver/processor does not contain a Dolby Digital or DTS processor but has a subwoofer output, you must use the stereo RCA inputs. If the receiver/processor has a mono subwoofer output, a "Y" adapter is recommended to maximize performance.

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