SpeakerDecision
  • SPEAKERS by TYPE
    • Passive Bookshelf Speakers
    • Passive Floor-standing Speakers
    • Passive Center Channel Speakers
    • Passive In-wall Speakers
    • All Passive Speakers
    • Powered Subwoofers
    • Powered Stereo Speakers
  • AMPLIFIERS
  • SMART FIND
PSB SubSeries 350 Subwoofer Review

Main Features

  • 12" Polypropylene Woofer
  • 300 watts RMS Output
  • 25-150 Hz Frequency Response
  • Weight: 51.00 lbs / 23.18kg
  • Dimensions (H x W x D): 16" x 15-1/2" x 17-1/2"
CHECK PRICE

Compare To

x
Add a Subwoofer for comparison
PSB SubSeries 350 Subwoofer Review
PSB SubSeries 350 PSB SubSeries 350
See at AMAZON

SubSeries 350 is a Sealed type Powered Subwoofer by PSB with a frequency range of 25-150 Hz. It features 1 x 12" Polypropylene Woofer, and powered by a 300 watts amplifier.

SubSeries 350 is a member of PSB's SubSeries series of Powered subwoofers. Below you can see the main specs of these subwoofers as well as review and comparison links.

PSB SubSeries Series Subwoofers
Model Frequency Woofer Amp Power Weight
PSB SubSeries BP8
Compare
25-150k Hz 8" 500 watts 19.10kg
PSB SubSeries 350
25-150k Hz 12" 300 watts 23.18kg
PSB SubSeries 250
Compare
25-150k Hz 10" 200 watts 19.09kg
PSB SubSeries 450
Compare
20-150k Hz 12" 400 watts 20.45kg
PSB SubSeries 150
Compare
26-150k Hz 6.5" 100 watts 6.05kg


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Frequency Response

PSB SubSeries 350 has a Frequency response range of 25-150 Hz at ±3dB. With the help of its 1 x 12-inch driver and 300 watts RMS amplifier, the SubSeries 350 can go as low as 25 Hz which doesn't quite offer full range sound (20Hz-2kHZ) but it gets really close. Here we have a comparison of how SubSeries 350's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.

Low Frequency
Powered Subwoofers
PSB SubSeries 350
Min
Average
Max
High Frequency
Subwoofer Speakers
PSB SubSeries 350
Min
Average
Max

Among all subwoofers in our database with a max MSRP price of 1500$, these are the 5 Powered Subwoofer models that can reach deeper bass levels than the PSB SubSeries 350's 25Hz:

  • GoldenEar SuperSub X with Low Frequency of 12 Hz (Compare w/ SubSeries 350)
  • GoldenEar ForceField 40 with Low Frequency of 14 Hz (Compare w/ SubSeries 350)
  • GoldenEar ForceField 4 with Low Frequency of 14 Hz (Compare w/ SubSeries 350)
  • SVS PB-2000 Pro with Low Frequency of 16 Hz (Compare w/ SubSeries 350)
  • SVS PC-2000 Pro with Low Frequency of 16 Hz (Compare w/ SubSeries 350)

Low-Pass Crossover

PSB SubSeries 350 has a variable Low-pass filter (LFP) which lets you choose a frequency level between 50-150 Hz in order to block any frequencies above that point from reaching the amplifier.

PSB SubSeries 350 Back View
PSB SubSeries 350 Back View

Inputs and Outputs

  • PreampLevel Inputs: LFE, Stereo RCA
  • SpeakerLevel Inputs: Yes
  • SpeakerLevel Outputs: Yes
  • Wireless: Yes

Wireless Connection

PSB SubSeries 350 lets you make a wireless connection to your system with an optional adapter. Wireless connection helps to minimize the cables running on your floor.

PSB SubSeries 350 External Dimensions and Weight

PSB SubSeries 350 has external dimensions of (Height x Width x Depth) 16 x 15-1/2 x 17-1/2inch (407.0 x 394.0 x 445.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of PSB SubSeries 350 is approximately 1753.3cm2 / 271.8inch2.

To get a better perspective on the real life size of PSB SubSeries 350, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).

PSB SubSeries 350 Real Life Body Size Comparison
PSB SubSeries 350 Speaker Size Compared to a Compact Disc

Here we place the PSB SubSeries 350 virtually next to a standard width amplifier and turntable on a media center to get a better idea about the size.

PSB SubSeries 350 placed next to a Media Stand
PSB SubSeries 350 Subwoofer next to a Media Stand

Weight

The PSB SubSeries 350 weighs 23.18kg / 51lbs. Weight of a subwoofer is an important factor when you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. Here is a comparison of how SubSeries 350's weight compares with the average, max and min weights in its class.

Weight
All Subwoofer Speakers
PSB SubSeries 350
Min
Average
Max
Weight
Subwoofer Speakers under $1500
PSB SubSeries 350
Min
Average
Max

How does the PSB SubSeries 350 compare to the PSB SubSeries 450?

One of the natural alternative to the PSB SubSeries 350 is the SubSeries 450 which is located one step higher in PSB's Powered Subwoofer selection.

Here is a scaled size comparison of these two speakers to give you an idea how their external dimensions compare:

PSB SubSeries 350 vs PSB SubSeries 450 Size Comparison - Front View
Comparison image of PSB SubSeries 350 and PSB SubSeries 450 Size and External Dimensions

Check the Detailed Comparison of PSB SubSeries 350 vs SubSeries 450 for more details.

Cabinet type and Materials

PSB SubSeries 350 has a Acoustic Suspension type cabinet. Acoustic suspension aka Sealed subwoofers are preferred for music oriented systems whereas the Ported subwoofers are generally accepted to be more suitable for home theatre systems.

Port Position

PSB SubSeries 350 is a front-firing port speaker , which gives you more flexibility compared to rear firing speakers when you need to place it close against a wall or other surfaces.

Does the PSB SubSeries 350 come with a Grille?

SubSeries 350 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

PSB SubSeries 350  with Grille
PSB SubSeries 350 with Grille

What's in the Box of PSB SubSeries 350?

Here are the items that are included inside the box of SubSeries 350:
  • Powered subwoofer
  • Grille
  • 6-feet AC power cord
  • Quick Start Guide
  • Important Safety Instructions
  • Warranty Information
  • Recommended Accessories

    Here is a list of accessories that we think you may need for the PSB SubSeries 350.

    • Vibration Isolators: IsoAcoustics isolators more affordable options too.
    • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.

    Warranty

    1 Year of parts warranty and 1 Year of labor warranty is generally provided by the manufacturer.

    PSB SubSeries 350 Alternatives in Powered Subwoofer Speakers
    Model Frequency Woofer Amp Power Dimensions
    Polk Monitor XT12
    Compare
    24-160k Hz 12" 50 watts 16-7/16inch x 16-1/16inch x 19-1/16inch "
    B&W DB4S
    Compare
    10-350k Hz 10" 1000 watts 14-3/4 x 14-1/4 x 17-1/16inch"
    Klipsch R-101SW
    Compare
    30-160k Hz 10" 150 watts 14-9/16inch x 14-1/16inch x 20-13/16inch "
    Klipsch R-121SW
    Compare
    28-120k Hz 12" 200 watts 16-5/8inch x 16inch x 20-15/16inch "
    Klipsch RP-1200SW
    Compare
    17-138k Hz 12" 400 watts 18-15/16inch x 17inch x 25-15/16inch "
    SVS SB-1000 Pro
    Compare
    20-270k Hz 12" 325 watts 13-1/2inch x 13inch x 15-13/16inch "
    Wharfedale SW-15
    Compare
    30-120k Hz 15" 400 watts 22-7/16inch x 19-3/8inch x 24-3/16inch "
    KEF KUBE 8b
    Compare
    34-140k Hz 8" 300 watts 11-9/16 x 11-5/8 x 13-5/16inch"
    Klipsch SPL-100
    Compare
    27-125k Hz 10" 200 watts 16-7/16 x 14-1/16 x 18-13/16inch"
    KEF KUBE 10b
    Compare
    24-140k Hz 10" 300 watts 14-5/8 x 14 x 15-5/8inch"
    JBL Stage A120P
    Compare
    32-150k Hz 12" 250 watts 16-5/16 x 15-7/16 x 18-11/16inch"
    KEF KC62
    Compare
    11-200k Hz 6.5" 1000 watts 9-5/8inch x 10-1/8inch x 11-1/16inch "
    SVS PB-1000
    Compare
    19-270k Hz 10" 300 watts 18-7/8 x 15 x 20-15/16inch"
    Klipsch RP-1400SW
    Compare
    16-141k Hz 14" 500 watts 21-5/16inch x 20inch x 25-11/16inch "
    B&W ASW610
    Compare
    27-140k Hz 10" 200 watts 12-5/8 x 12-1/4 x 15-1/2inch"
    Klipsch R-100SW
    Compare
    32-120k Hz 10" 150 watts 14-5/8 x 12-9/16 x 18-1/16inch"
    Frequently Asked Questions about PSB SubSeries 350
    What is the External Dimensions of PSB SubSeries 350
    LATEST BLOG POSTS

    Klipsch La Scala AL6 and Klipschorn AK7 Speakers are Unveiled
    New Audiolab 6000A MkII with upgraded DAC and new HDMI ARC connection
    Q Acoustics 3000c Series Loudspeakers added to the database
    WiiM VibeLink Amp: A Game-Changer for Budget Hi-Fi in 2025
    KEF Meta and Reference Meta Floorstanding Speaker Size and Specs Comparison
    Triangle Borea Bookshelf and Floorstanding Speaker Size and Specs Comparison


    Latest Powered Subwoofers
    Polk Signature Elite ES12
    Polk Signature Elite ES12
    12-inch Woofer | 22-250 Hz | 300 watts
    Polk Signature Elite ES10
    Polk Signature Elite ES10
    10-inch Woofer | 28-250 Hz | 200 watts
    Polk Signature Elite ES8
    Polk Signature Elite ES8
    8-inch Woofer | 32-180 Hz | 100 watts
    JBL Stage 220P
    JBL Stage 220P
    12-inch Woofer | 29-150 Hz | 250 watts
    JBL Stage 200P
    JBL Stage 200P
    10-inch Woofer | 32-150 Hz | 150 watts
    KEF KC92
    KEF KC92
    9-inch Woofer | 11-200 Hz | 1000 watts
    KEF Kube 15 MIE
    KEF Kube 15 MIE
    15-inch Woofer | 20-140 Hz | 300 watts
    KEF Kube 12 MIE
    KEF Kube 12 MIE
    12-inch Woofer | 22-140 Hz | 300 watts
    KEF Kube 10 MIE
    KEF Kube 10 MIE
    10-inch Woofer | 20-140 Hz | 300 watts
    KEF Kube 8 MIE
    KEF Kube 8 MIE
    8-inch Woofer | 34-140 Hz | 300 watts


    Most Popular Speakers
    Klipsch Reference R-51M
    Klipsch R-51M
    2-way | 93 dB | 8 ohms
    Wharfedale Elysian 2
    Wharfedale Elysian 2
    3-way | 89 dB | 4 ohms
    ELAC Debut 2.0 B6.2
    ELAC Debut 2.0 B6.2
    2-way | 87 dB | 6 ohms
    Bowers & Wilkins 606 S2 Anniversary Edition
    B&W 606 S2
    2-way | 88 dB | 8 ohms
    KEF Q150
    KEF Q150
    2-way | 86 dB | 8 ohms
    Klipsch Reference Premiere RP-500M
    Klipsch RP-500M
    2-way | 93 dB | 8 ohms
    Wharfedale EVO4.1
    Wharfedale EVO4.1
    2-way | 87 dB | 8 ohms
    Bowers & Wilkins 606
    B&W 606
    2-way | 88 dB | 8 ohms
    Wharfedale SUPER LINTON
    Wharfedale SUPER LINTON
    3-way | 90 dB | 6 ohms
    Wharfedale LINTON Heritage
    Wharfedale LINTON
    3-way | 90 dB | 6 ohms

    Copyright © 2025 by SpeakerDecision
    About Privacy Contact US Camera Decision