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
      By Feature
      HDMI Input Room Correction Subwoofer Output Front Firing Port Handheld Remote Roon Ready
      By Brand
      Acoustic Energy Aperion ATC Audio-Technica Audioengine Bluesound Bowers Wilkins Buchardt Cambridge Audio Canton DALI Definitive Technology Dynaudio ELAC Emotiva Fluance Focal Fyne Audio Genelec GoldenEar Harbeth Jamo JBL Kanto KEF KLH Klipsch Leak Mackie Magnepan MartinLogan McIntosh Mission MoFi Monitor Audio Nuvo Onkyo OSD Paradigm Perlisten Polk Audio PS Audio PSB Q Acoustics REL Revel Russound Sennheiser Sonos Sonus faber Sony Spendor SVS Tannoy Technics Triangle Velodyne Victrola Wharfedale Wilson Audio Yamaha
  • AMPLIFIERS
    • By Type
      All Amplifiers Integrated Amplifiers Stereo Receivers Streaming Amplifiers Power Amplifiers Compact Amplifiers
      By Power
      Up to 60 watts 61 to 90 watts 91 to 120 watts 121 to 180 watts Over 180 watts
      By Feature
      HDMI Input Room Correction Subwoofer Output Handheld Remote Roon Ready
      Home Theater
      All Home Theater Receivers Anthem ARCAM Denon Integra JBL Marantz McIntosh NAD Onkyo Sony Yamaha
      Headphone Amps
      All Headphone Amplifiers Cambridge Audio iFi Audio McIntosh Naim Pro-Ject Rotel Schiit Audio Sennheiser Yamaha
      Multi-Zone
      All Multi-Zone Amplifiers JBL McIntosh OSD Rotel Russound Sonos
      By Brand
      Accuphase Advance Paris Anthem Arcam Audio Research AudioControl Audioengine Audiolab Bluesound Bose Buchardt Cambridge Audio Cayin Denon Devialet ELAC Emotiva Eversolo FiiO Fosi Audio Hegel HiFi Rose Integra JBL Layer Audio Design LEAK Luxman Marantz Mark Levinson McIntosh Michi MISSION MOON Musical Fidelity NAD Naim Onkyo OSD Parasound Pass Labs Peachtree PrimaLuna Primare PS Audio Rega Rogue Audio Roksan Rotel Schiit Audio Sonos Sony SVS T+A TEAC Technics Vincent WiiM Yamaha
  • SMART FIND
  • TOOLS
  • BLOG
  1. Home
  2. Polk Audio Speakers
  3. Passive Center Channel Speakers
  4. Polk Audio Reserve R350
Polk Audio Reserve R350 Review
Polk Audio Reserve R350 - Front View

Compare To

Main Features

  • 1" Ring Radiator Tweeter
  • 4 x 4" Woofer
  • 75-35k Hz Frequency Response
  • 87 dB Sensitivity
  • Impedance: 8ohms
  • Weight: 20.00 lbs / 9.07 kg
  • Dimensions(HxWxD): 5-9/16"x30"x7-1/4" / 141.3 x 762.0 x 184.2mm
MSRP: $649 (list price)
Check price atAmazon›
x
Add a Speaker for comparison
Polk Audio Reserve R350 Review
Polk Audio Reserve R350 Polk Audio Reserve R...
Check price atAmazon›

Made by Polk Audio · United States · since 1972 · sold through dealers

Polk Audio Reserve R350 is a 2-way Passive Center Channel speaker by Polk Audio. It was released in March 2021. Center channel speaker is an important component of a home theater system set-up as it delivers the listener significant part of the on-screen dialogue from your television. It features a 1" Ring Radiator Tweeter and 4 x 4" Woofer. The speaker has a frequency range of 75-35k Hz and a sensitivity of 87 dB. Polk Audio Reserve R350 has an MSRP of 649$ per pair but can often be found around 0$ per pair.

Polk Audio's Reserve Series of Loudspeakers

Reserve R350 is a member of Polk Audio's Reserve series of Passive speakers. The Reserve range is Polk Audio's high-value step-up line, with Pinnacle tweeter and Power Port technology from the flagship Legend series. Below you can see the main specs of these speakers.

See all 10 Polk Audio Reserve models compared »

Polk Audio Reserve Series Speakers
Model Frequency SensitivityImpedance Woofer
Polk R700
Compare
38-38k Hz 88 dB8Ω 2 x 8"
Polk R600
Compare
43-38k Hz 87.5 dB8Ω 2 x 6.5"
Polk R500
Compare
49-36k Hz 87 dB8Ω 2 x 5.25"
Polk R200
Compare
51-38k Hz 86 dB8Ω 1 x 6.5"
Polk R100
Compare
58-39k Hz 86 dB8Ω 1 x 5.25"
Polk R400
Compare
48-39k Hz 89 dB8Ω 2 x 6.5"
Polk R300
Compare
65-38k Hz 86.5 dB8Ω 2 x 5.25"
Polk R200 50th AE
Compare
51-38k Hz 86 dB8Ω 1 x 6.5"
Polk Audio Reserve R350
75-35k Hz 87 dB8Ω 4 x 4"
Polk Audio Reserve R900
Compare
70-32k Hz 85.5 dB8Ω 1 x 4"

Frequency Response of the Polk Audio Reserve R350 Speaker

Polk Audio Reserve R350 has a Frequency response range of 75-35k Hz.

Here we have a comparison of how Reserve R350's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Center Channel Speakers
Polk Audio Reserve R350
Min
Average
Median

Impedance and Sensitivity

Polk Audio Reserve R350's nominal impedance level is 8 ohms and has a sensitivity of 87 dB.

Sensitivity
Center Channel Speakers
Polk Audio Reserve R350
Min
Average
Median

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Polk Audio Reserve R350 is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

With a sensitivity level of only 87 dB, Polk Audio Reserve R350 is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps. Work out how loud the Polk Audio Reserve R350 plays in your room →

What amplifier does the Polk Audio Reserve R350 need?

At normal listening levels in a medium room, about 15–235 W per channel into 8 ohms. Set your own conditions and we will rank every amplifier we cover.

We check power, impedance safety and current delivery - not just watts.

Prefer to browse? Integrated amplifiers under $750, or every amplifier we cover.

Input Type

Reserve R350 features Binding post type connectors.

Work out what gauge speaker cable this run needs →

Polk Audio Reserve R350 External Dimensions and Weight

Polk Audio Reserve R350 has external dimensions of (Height x Width x Depth) (141.3 x 762.0 x 184.2mm ).

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 Polk Audio Reserve R350 is approximately 1403.6cm2 / 217.6inch2.

Find speakers that fit your shelf or alcove →

Weight

The Polk Audio Reserve R350 weighs 9.07kg / 20lbs per piece. Here is a comparison of how Reserve R350's weight compares with the average, max and min weights in its class.

Weight
All Center Channel Speakers
Polk Audio Reserve R350
Min
Average
Median
Weight
Center Channel Speakers under $750
Polk Audio Reserve R350
Min
Average
Max

Available colors

Polk Audio Reserve R350 is available in Brown.

Recommended Accessories

Here is a list of accessories that we think you may need for the Polk Audio Reserve R350.

  • Speaker Cable and Connectors
    • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
    • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
    • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find 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

5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

Polk Audio Reserve R350 Alternatives in Passive Center Channel Speakers
Model Type Sensitivity Impedance Frequency
Polk R200 50th AE
Compare
2-way 86 dB 8 ohms 51-38k Hz
Polk Audio Reserve R900
Compare
2-way 85.5 dB 8 ohms 70-32k Hz
Polk R300
Compare
2-way 86.5 dB 8 ohms 65-38k Hz
Polk R700
Compare
3-way 88 dB 8 ohms 38-38k Hz
Polk R200
Compare
2-way 86 dB 8 ohms 51-38k Hz
Polk R400
Compare
2-way 89 dB 8 ohms 48-39K Hz
Polk R600
Compare
2-way 87.5 dB 8 ohms 43-38k Hz
Polk R100
Compare
2-way 86 dB 8 ohms 58-39k Hz
Frequently Asked Questions about Polk Audio Reserve R350

What amplifier do you need for the Polk Audio Reserve R350?

The Polk Audio Reserve R350 is an 8-ohm speaker, the usual nominal load, so almost any amplifier or receiver can drive it.

Is the Polk Audio Reserve R350 easy to drive?

The Polk Audio Reserve R350 has a sensitivity of 87 dB. That is about average for a home speaker, so it is neither hard nor especially easy to drive.

Does the Polk Audio Reserve R350 need a subwoofer?

The Polk Audio Reserve R350 reaches down to 75Hz (full range 75-35k Hz). That leaves the lowest octaves out, so a subwoofer will make a clear difference for films and bass-heavy music.

What drivers does the Polk Audio Reserve R350 use?

The Polk Audio Reserve R350 is a 2-way design using a 1" Ring Radiator tweeter and 4 x 4" woofers.

Is the Polk Audio Reserve R350 sealed or ported?

The Polk Audio Reserve R350 uses a Sealed enclosure. A sealed box trades some output for tighter, more even bass and is the more forgiving choice close to a wall.

How big and heavy is the Polk Audio Reserve R350?

The Polk Audio Reserve R350 weighs 9.07kg / 20lbs each.

How much does the Polk Audio Reserve R350 cost?

The Polk Audio Reserve R350 has a manufacturer's list price (MSRP) of $649 per pair.


Polk Audio Reserve R350 Detailed Specifications

General
BrandPolk Audio
Full Model NamePolk Audio Reserve R350
Speaker Type2-way Center Channel
Sensitivity87 dB
Impedance8 ohms
Frequency Response75-35k Hz
Release DateMarch 2021
DRIVERS
Woofer Size4-inch
Woofer Composition
Tweeter Size1-inch
Tweeter TypeRing Radiator

CONNECTIONS
Connector TypeBinding post
PHYSICAL SPECS
Height141.3mm ( 5-9/16-inch)
Width762.0mm ( 30-inch)
Depth184.2mm ( 7-1/4-inch)
Height141.3mm ( 5-9/16-inch)
Weight9.07 kg (20 lbs)
Enclosure
Available ColorsBrown
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty5 Years
Labor Warranty5 Years
Was this review useful?
Tell us what is missing or wrong and we will fix it.
Thanks. Anything you would add?
Optional, and it goes straight to the person who maintains this page.
Thanks - noted.
LATEST BLOG POSTS

Bowers & Wilkins 800 D5 vs D4: Same Published Specs, 30 to 56 Percent More Money
Arcam's Cheapest New Receiver Costs 47 Percent More. It Is Also the Only One That Changed.
Triangle Borea BR04 vs BR03: 50 Dollars More Buys 2 Hz, Bi-Wiring and a Bigger Box
Marantz Cinema Series 2 Costs 200 Dollars More With the Same Power and Weight. Here Is What Changed.
SVS Won Best Budget Home Theater at CEDIA. Here Is the Bill, and Three Cheaper Ways to Build It
Dirac Live Is on 35 of the Amplifiers We List, and Nine of Them Charge Extra


Latest Passive Center Channel Speakers
Klipsch Reference Premiere RP-5403C
Klipsch RP-5403C
2-way Center Channel | 96 dB | 8 ohms
Klipsch Reference Premiere RP-5203C
Klipsch RP-5203C
2-way Center Channel | 94 dB | 8 ohms
Bowers & Wilkins HTM82 D5
Bowers & Wilkins HTM82 D5
3-way Center Channel | 89 dB | 8 ohms
Bowers & Wilkins HTM81 D5
Bowers & Wilkins HTM81 D5
3-way Center Channel | 90 dB | 8 ohms
Triangle Solstice C3
Triangle Solstice C3
2-way Center Channel | 92 dB | 8 ohms
Revel Performa4 C245
Revel Performa4 C245
2-way Center Channel | 86 dB | 6 ohms
DALI SONIK CINEMA
DALI SONIK CINEMA
2-way Center Channel | 89.5 dB | 6 ohms
Monitor Audio Silver Centre 8G
Monitor Audio Silver Centre 8G
3-way Center Channel | 89 dB | 8 ohms
Wharfedale Diamond 12.Ci
Wharfedale Diamond 12.Ci
2-way Center Channel | 90 dB | 8 ohms
Focal Omada Center
Focal Omada Center
2-way Center Channel | 91.5 dB | 8 ohms


This site contains affiliate links. We may be compensated if you make a purchase after clicking through one of them. As an Amazon Associate we earn from qualifying purchases.
Copyright © 2026 by SpeakerDecision
About Privacy Contact US Camera Decision