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Klipsch RP-400C Review
Klipsch RP-400C - Image 1

Main Features

  • 1" Tractrix horn Tweeter
  • 2 x 4" Cerametallic cone Woofer
  • 65-25k Hz Frequency Response
  • 95 dB Sensitivity
  • Impedance: 8ohms
  • Power Range: up to 75watts
  • Weight:14.00 lbs / 6.36 kg
  • Dimensions(HxWxD): 5-3/4"x16-1/16"x9-1/2" / 147.0 x 408.0 x 242.0mm
MSRP: $344 (list price)
Check price atAmazon›

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Klipsch RP-400C Review
Klipsch RP-400C Klipsch RP-400C
Check price atAmazon›

Klipsch Reference Premiere RP-400C is a 2-way Passive Bass Reflex Center Channel speaker by Klipsch. It was released in 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" Tractrix horn Tweeter and 2 x 4" Cerametallic cone Woofer. The speaker has a frequency range of 65-25k Hz and a sensitivity of 95 dB. Klipsch RP-400C has an MSRP of 344$ but can often be found around 249$ per pair.

Room Size Suitability

The size of the room where you plan to use the Klipsch RP-400C is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:

Listening Environment* Suitability
Near-fieldGood
Small RoomGood
Mid-size RoomAverage
Large RoomPoor
Very Large RoomNo way

(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2. Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)

Klipsch RP-400C  Lifestyle
Klipsch RP-400C Lifestyle

Klipsch's Reference Premiere (RP) Series of Loudspeakers

RP-400C is a member of Klipsch's Reference Premiere (RP) series of Passive speakers. Reference Premiere (RP) is Klipsch's step-up range, with hybrid Tractrix horns and larger spun-copper woofers than the Reference line. Below you can see the main specs of these speakers.

See all 10 Klipsch Reference Premiere (RP) models compared »

Klipsch Reference Premiere (RP) Series Speakers
Model Frequency SensitivityImpedance Woofer
Klipsch RP-500M
Compare
48-25k Hz 93 dB8Ω 1 x 5.25"
Klipsch RP-400M
Compare
52-25k Hz 93 dB8Ω 1 x 4"
Klipsch RP-600M
Compare
45-25k Hz 96 dB8Ω 1 x 6.5"
Klipsch RP-6000F
Compare
34-25k Hz 97 dB8Ω 2 x 6.5"
Klipsch RP-8000F
Compare
32-25k Hz 98 dB8Ω 2 x 8"
Klipsch RP-280F
Compare
32-25k Hz 98 dB8Ω 2 x 8"
Klipsch RP-160M
Compare
45-25k Hz 95 dB8Ω 1 x 6.5"
Klipsch RP-5000F
Compare
35-25k Hz 96 dB8Ω 2 x 5.25"
Klipsch RP-8060FA
Compare
32-25k Hz 98 dB8Ω 2 x 8"
Klipsch RP-450C
Compare
58-25k Hz 97 dB8Ω 4 x 5.25"
Klipsch Reference Premiere (RP) Series Speakers
Klipsch Reference Premiere (RP) Series Speakers


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

Frequency Response of the Klipsch RP-400C Speaker

Klipsch RP-400C has a Frequency response range of 65-25k Hz at ±3dB and Power Range of up to 75 watts.

Here we have a comparison of how RP-400C's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Center Channel Speakers
Klipsch RP-400C
Min
Average
Median

Impedance and Sensitivity

Klipsch RP-400C's nominal impedance level is 8 ohms and has a sensitivity of 95 dB.

Sensitivity
Center Channel Speakers
Klipsch RP-400C
Min
Average
Median

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Klipsch Reference Premiere RP-400C is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

95dB of the Klipsch Reference Premiere RP-400C is considered a high sensitivity compared to average stereo speaker which makes RP-400C an easy to drive from Sensitivity perspective. If you are planning to power your speaker with a Tube amp which are generally very low power, the Klipsch RP-400C will be a good choice. Work out how loud the Klipsch RP-400C plays in your room →

What amplifier does the Klipsch RP-400C need?

At normal listening levels in a medium room, about 2.4–60 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 $500, or every amplifier we cover.

Input Type

RP-400C features Binding post type connectors. Bi-amping and Bi-wiring are not possible.

Work out what gauge speaker cable this run needs →

Klipsch RP-400C Back View
Klipsch RP-400C Back View

Klipsch RP-400C External Dimensions and Weight

Klipsch RP-400C has external dimensions of (Height x Width x Depth) 5-3/4 x 16-1/16 x 9-1/2inch (147.0 x 408.0 x 242.0mm ).

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 Klipsch RP-400C is approximately 987.4cm2 / 153.0inch2.

Find speakers that fit your shelf or alcove →

Weight

The Klipsch RP-400C weighs 6.36kg / 14lbs per piece. Here is a comparison of how RP-400C's weight compares with the average, max and min weights in its class.

Weight
All Center Channel Speakers
Klipsch RP-400C
Min
Average
Median
Weight
Center Channel Speakers under $500
Klipsch RP-400C
Min
Average
Max

Cabinet type and Materials

Klipsch RP-400C has a Bass Reflex type cabinet and a MDF/Wood-grain vinyl finish. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.

Speaker Feet

Klipsch RP-400C comes with 4 Self-adhesive rubber feet which you can use to secure your loudspeaker on the surface that you are putting on.

It is always recommended to use some kind of feet under all types of speakers. Besides limiting the movement of the speakers, it also compensates for non-flat surfaces and limits the contact surface area of the speaker. Rubber based feet also help isolating the vibrations within certain frequency ranges.

Port Position

Klipsch RP-400C is a rear-firing port speaker so you have to make sure you leave enough space between the back of the speaker and wall or bookshelf so that it has room to breathe.

Available colors

Klipsch RP-400C is available in Walnut and Black.

Does the Klipsch RP-400C come with a Grille?

RP-400C comes with magnetic grilles in black color choices. 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. Since the included grille of the RP-400C is magnetic type, it is very easy to put it on and off.

Klipsch RP-400C  with Grille
Klipsch RP-400C with Grille

What's in the Box of Klipsch RP-400C?

Here are the items that are included inside the box of RP-400C:
  • Center channel loudspeaker
  • Grille (installed)
  • 4 Self-adhesive rubber feet
  • Tilt rod (attached nut)
  • User Manual
  • Important Safety Instructions
  • Warranty Information

Recommended Accessories

Here is a list of accessories that we think you may need for the Klipsch Reference Premiere RP-400C.

  • 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.

Klipsch Reference Premiere RP-400C Alternatives in Passive Center Channel Speakers
Model Type Sensitivity Impedance Frequency
Klipsch RP-500C II
Compare
2-way 96 dB 8 ohms 60-25k Hz
Klipsch RP-500C
Compare
2-way 96 dB 8 ohms 60-25k Hz
Klipsch RP-404C II
Compare
2-way 94 dB 8 ohms 87-25k Hz
Klipsch R-52C
Compare
2-way 95 dB 8 ohms 89-21k Hz
Klipsch R-34C
Compare
2-way 96 dB 8 ohms 82-21k Hz
Klipsch RP-600C
Compare
2-way 97 dB 8 ohms 58-25k Hz
Klipsch RP-504C II
Compare
2-way 96 dB 8 ohms 50-25k Hz
Klipsch RP-600M
Compare
2-way 96 dB 8 ohms 45-25k Hz
Frequently Asked Questions about Klipsch Reference Premiere RP-400C

What amplifier do you need for the Klipsch RP-400C?

Klipsch rates the Klipsch RP-400C for up to 75 watts of amplifier power. It is an 8-ohm speaker, the usual nominal load, so almost any amplifier or receiver can drive it.

Is the Klipsch RP-400C easy to drive?

The Klipsch RP-400C has a sensitivity of 95 dB. That is high: it goes loud on modest power, so it suits low-powered amplifiers, including valve/tube designs.

Does the Klipsch RP-400C need a subwoofer?

The Klipsch RP-400C reaches down to 65Hz (full range 65-25k 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 Klipsch RP-400C use?

The Klipsch RP-400C is a 2-way design using a 1" Tractrix horn tweeter and 2 x 4" Cerametallic cone woofers.

Is the Klipsch RP-400C sealed or ported?

The Klipsch RP-400C uses a Ported enclosure. A ported design uses a tuned vent to get more low-end output from the same driver, but it wants some breathing room behind it.

Can the Klipsch RP-400C be wall mounted?

The Klipsch RP-400C does not include a wall-mount bracket or keyhole, so it is designed to sit on a stand, shelf or the floor.

Does the Klipsch RP-400C come with grilles?

Yes. The Klipsch RP-400C comes with removable grilles (black).

How big and heavy is the Klipsch RP-400C?

The Klipsch RP-400C weighs 6.36kg / 14lbs each and measures 5-3/4 x 16-1/16 x 9-1/2inch (HxWxD).

How much does the Klipsch RP-400C cost?

The Klipsch RP-400C has a manufacturer's list price (MSRP) of $344 per pair.


Klipsch RP-400C Detailed Specifications

General
BrandKlipsch
Full Model NameKlipsch Reference Premiere RP-400C
Speaker Type2-way Center Channel
Power Rangeup to 75 watts
Sensitivity95 dB
Impedance8 ohms
Frequency Response65-25k Hz
Release Date2021
DRIVERS
Woofer Size4-inch
Woofer CompositionCerametallic cone
Woofer SurroundRubber
Tweeter Size1-inch
Tweeter TypeTractrix horn
Port Positionrear

CONNECTIONS
Connector TypeBinding post
Port Positionrear
PHYSICAL SPECS
Height147.0mm ( 5-3/4-inch)
Width408.0mm ( 16-1/16-inch)
Depth242.0mm ( 9-1/2-inch)
Height147.0mm ( 5-3/4-inch)
Weight6.36 kg (14 lbs)
EnclosureBass Reflex
FinishMDF/Wood-grain vinyl
Available ColorsWalnut, Black
Mounting BracketNo
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty5 Years
Labor Warranty5 Years
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