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Infinity Primus PS410BK

Powered subwoofer

59 Reviews | 2 questions - 5 answers

Item # 108PS410BK

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Our take on the Infinity Primus PS410BK

Infinity subs have been knocking our customers' socks off for years. Hook one up to your system and find out why. The PS410BK will add deep, resounding bass to your stereo or home theater setup. Its 300-watt amplifier effortlessly drives a 10" woofer for exciting low-frequency punch. You'll enjoy the commanding rumble of movie special effects as well as accurate, musical bass with your favorite tunes.

Rock the house with deep, thundering bass

Infinity Primus PS410BK Powered subwoofer

The rear port provides incredible low-note emphasis that will shake the windows.

Infinity subs have been knocking our customers' socks off for years. Hook one up to your system and find out why. The PS410BK will add deep, resounding bass to your stereo or home theater setup. Its 300-watt amplifier effortlessly drives a 10" woofer for exciting low-frequency punch. You'll enjoy the commanding rumble of movie special effects as well as accurate, musical bass with your favorite tunes.

Built with quality materials that are made to last

The key to the PS410BK's remarkable performance is its MMD® driver. This material uses a solid metal core which allows the woofer cone to keep its shape as it moves back and forth — resulting in clear, accurate sound, even with the most demanding music and movie soundtracks. The black woodgrain vinyl finish fits in with almost any room decor.

Build a complete Primus® system

The Infinity Primus PS410BK will fill most rooms with dramatic and well-defined bass. Connect it to your receiver using either the LFE or line-level inputs. Easily accessible controls on the back of the sub help you blend it in with the rest of your system. The '410BK is voice-matched with the entire Primus home theater speaker lineup, so you can create a high-quality sound system that meets your needs.

Excellent bass response. I love it.

Infinity, St. Pete, Florida

What's in the Box:

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

Product Highlights:

  • bass-reflex (ported) design
  • 300-watt RMS amplifier
  • 10" front-firing MMD® low-frequency driver
  • frequency response 27-150 Hz (±3dB)
  • continuously variable 50-150 Hz crossover
  • phase switch
  • line-level stereo RCA inputs
  • unfiltered LFE (Low Frequency Effects) mode for connection to a home theater receiver's subwoofer output
  • auto on/off
  • black woodgrain vinyl finish
  • 12-1/2"W x 15-3/4"H x 16-1/2"D
  • warranty: 5 years driver, 2 years electronics
  • Our 60-day money-back guarantee

Infinity Primus PS410BK Reviews

Average Customer Review(s):

(59 Reviews)
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Hands-on research

Features and Specs

Enclosure Bass Reflex
Video Shielded No
Woofer Size (inches) 10
Woofer Composition M.M.C.
Firing Direction Front
Wireless No
Preamp-Level Inputs Yes
Speaker-Level Inputs No
Speaker-Level Outputs No
Low-Pass Crossover Freq 50-150
High-Pass Crossover Freq N/A
Phase Switch Yes
Amplifier Output (watts) 300
Frequency Response 27-150 Hz
Height (inches) 15-7/8
Width (inches) 12-1/2
Depth (inches) 18-5/8
Weight 38.6 lbs
Speaker Parts Warranty 5 Years
Speaker Labor Warranty 5 Years
Amplifier Parts Warranty 2 Years
Amplifier Labor Warranty 2 Years

Product Research



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 PS410 is equipped with a front-firing, 10" M.M.D. woofer.

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

Amplifier: This subwoofer is powered by a 300-watt (RMS) amplifier, rated at 27Hz - 150Hz with no more than 0.1% THD. The maximum (peak) power output is 500 watts.

Bass Ports: There is one rear-firing bass port that allows deep bass with high acoustic efficiency and low distortion.


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

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/Normal" switch is in the "LFE" position.

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.


Line-level Inputs: The subwoofer has gold-plated stereo RCA inputs with an "LFE/Normal" switch. If you have a Dolby Digital/DTS receiver or processor with a low-frequency-effects (LFE) output, you should switch the "LFE/Normal" switch to the LFE position. If your receiver/processor does not contain a Dolby Digital or DTS processor but has a subwoofer output, you should switch the "LFE/Normal" switch to the Normal position. In either case, you may use either the Left or Right input. A "Y" adapter is not necessary.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

To replace an older JBL sub woofer that hummed. The Primus also has an on/off switch which can be used to turn it off when I don't wish to use it. [ James  Sep 05, 2016 ]
quality and power. [ dan  Aug 26, 2016 ]
Recommended, one of the subs, Clarence, showed me. I licked the extra power capability, it had. [ Theodore  Jul 08, 2016 ]
In talking with Crutchfield expert, it was the right size for my room and purpose. It was going in a corner, on a rug, and had the best chance (for under $500) of delivering great movie experience. [ Peter  May 24, 2016 ]
I bought one of these a couple of years ago for my main home theater set up and loved it. Tight, clean bass w/plenty of volume, and best of all, musical. Was looking for the same sub to put in my man cave HT system, and found one in the Outlet store. No-brainer before, but at a reduced price even better! [ DONALD B  Mar 30, 2016 ]
good price for a 300 watt subwoofer. [ kenneth  Mar 12, 2016 ]
Great tech service and a good return policy. Stone was a great help [ Teunys  Feb 19, 2016 ]
10" is the must subwoofer [ Nishant  Jan 17, 2016 ]
Based on brand, price, size of woofer and reviews. [ JAVIER A  Jan 16, 2016 ]
good reviews [ Ricardo De  Jan 13, 2016 ]
Met my needs. [ Michael  Dec 31, 2015 ]
Great sub at a great price but the size is a problem. [ mitchell  Dec 16, 2015 ]

2 questions already asked

Mike, thanks for the heads up on amp problem. Went to Infinity website. No word on how or when fix will be done. Good news we have a 5 year warranty. [ JIM  Aug 24, 2016 ]
I bought two of these subs in 2012 (?). One of the subs started emitting random, EXTREMELY LOUD pops just at the end of the 2 year warranty period in 2014. Crutchfield sent me a brand new sub immediately. It's been great ever since. The other original sub has shown absolutely no problems. [ WILLIAM  Aug 24, 2016 ]
You sound well experienced with that, as am I. According to an Email I got last August when replacing a sub, they have a fix for it in place. Having said that, I received my replacement last August 8th or so; and I'm now starting to hear the telltale signs of failure - the slight distortion that will turn into full-blown within weeks. But according to my email; it's supposed to be corrected so I will be contacting that representative soon regarding my unit. [ SEAN  Aug 24, 2016 ]
I've had one failure that was replaced... A year or so, holding up so far. [ Christopher  Aug 24, 2016 ]
I forwarded your question to an Advisor and they responded with the following: The Ohm rating is not given on that sub, you will have to call Infinity directly 800-553-3332 If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy  Aug 03, 2015 ]  Staff