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Klipsch Reference Premiere RP-400M vs ELAC Debut 2.0 B6.2
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Klipsch RP-400M

Passive Bookshelf | 52-25k Hz

Klipsch Reference Premiere RP-400M
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ELAC Debut 2.0 B6.2

Passive Bookshelf | 44-35k Hz

ELAC Debut 2.0 B6.2
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Klipsch RP-400M vs ELAC Debut 2.0 B6.2 Speaker Comparison

In this review, we will be comparing RP-400M and Debut 2.0 B6.2, two Passive Bookshelf speakers from Klipsch and ELAC. Let's have a brief look at the main features of Klipsch RP-400M and ELAC Debut 2.0 B6.2 first before getting into our more detailed comparison.

Klipsch RP-400M Key Specs

  • 2-way Design
  • 1" Tractrix Horn Tweeter
  • 4" Cerametallic Woofer
  • 52-25k Hz Frequency Response
  • 93 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:up to 50watts
  • Weight:4.10kg
  • Dimensions (H x W x D): 298.0" x 5.6" x 7.5"( 298.0 x 144.0 x 191.0mm )

ELAC Debut 2.0 B6.2 Key Specs

  • 2-way Design
  • 1" Soft-Dome Tweeter
  • 6.5" Woven Aramid-Fiber Woofer
  • 44-35k Hz Frequency Response
  • 87 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:up to 120watts
  • Weight:7.40kg
  • Dimensions (H x W x D): 375.0" x 7-3/4" x 11-5/16"( 375.0 x 195.0 x 268.0mm )

What size room are the Klipsch RP-400M and ELAC Debut 2.0 B6.2 speakers good for?

The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:

Listening Environment* Klipsch RP-400M ELAC Debut 2.0 B6.2
Near-field Good Poor
Small Room Good Average
Mid-size Room Average Good
Large Room Poor Average
Very Large Room No way Poor

(* 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.)

In the following sections, we will get into more detail in order to better understand how the Klipsch RP-400M and ELAC Debut 2.0 B6.2 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**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.



Drivers

Both RP-400M and Debut 2.0 B6.2 are 2-way speakers. RP-400M features a 1" Tractrix Horn Tweeter and 1 x 4" Cerametallic Woofer with a Crossover frequency at 1500Hz. On the other hand, the Debut 2.0 B6.2 features a 1" Cloth Soft-Dome Tweeter and 1 x 6.5" Woven Aramid-Fiber Woofer with a Crossover frequency at 2200Hz.

Frequency Response

RP-400M has a frequency range of 52-25k Hz whereas Debut 2.0 B6.2 has a frequency range of 44-35k Hz. With a minimum frequency of 44Hz, the Debut 2.0 B6.2 can go significantly deeper on the low side and provide stronger bass compared to the RP-400M's min frequency of 52Hz.

Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.

Low Frequency

Bookshelf Speakers

RP-400M
Debut 2.0 B6.2
Min
Average
Max
High Frequency

Bookshelf Speakers

Klipsch RP-400M
ELAC Debut 2.0 B6.2
Min
Average
Max

None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.

Impedance and Sensitivity

RP-400M is a 8 ohms speaker compared to the Debut 2.0 B6.2 which has a nominal impedance of 6 ohms.

These two speakers also have different sensitivity levels. RP-400M sensitivity is rated at 93 dB and the Debut 2.0 B6.2's is rated at 87 dB. This 6 dB difference makes the Klipsch RP-400M a more sensitive speaker compared to ELAC Debut 2.0 B6.2, hence will play louder with the same amount of watts.

Sensitivity

Bookshelf Speakers

RP-400M
Debut 2.0 B6.2
Min
Average
Max

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.

RP-400M can handle a max power of 120 watts RMS from the amp the whereas RP-400M has a max power handling value of 50 watts RMS , 70 watts less than the Debut 2.0 B6.2.

Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters such as Impedance, sensitivity and system efficiencies.

Input Type and Bi-Amping / Bi-Wiring

RP-400M features 5-Way post type posts and Debut 2.0 B6.2 has a 5-Way post type posts. None of these speakers feature bi-amping/bi-wiring.

Klipsch RP-400M Terminals
Klipsch RP-400M's Single binding posts terminals

ELAC Debut 2.0 B6.25-Way post Terminals
ELAC Debut 2.0 B6.2's 5-Way post terminals

Cabinet Type and Port Position

RP-400M has a rear firing port whereas Debut 2.0 B6.2 has a front firing ports. ELAC Debut 2.0 B6.2's front-firing port gives more flexibility in placement in regards to proximity to walls compared to Klipsch RP-400M with its rear-firing port.

Klipsch RP-400M  Port
Klipsch RP-400M Tractrix horn-shaped Port

Physical Specs

Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Klipsch RP-400M's and ELAC Debut 2.0 B6.2's external dimensions. Klipsch RP-400M has external dimensions of 298.0 x 144.0 x 191.0mm ( 11.7 x 5.6 x 7.5inch) whereas ELAC Debut 2.0 B6.2 has external dimensions of 375.0 x 195.0 x 268.0mm ( 14.7 x 7.6 x 10.5inch) .

ELAC Debut 2.0 B6.2 is clearly the larger of the two speakers. Its body is 51mm wider, 77mm taller and 77mm deeper than Klipsch RP-400M.

Below you can see the front view size comparison of Klipsch RP-400M and ELAC Debut 2.0 B6.2 in scale.

Klipsch RP-400M vs ELAC Debut 2.0 B6.2 Size Comparison - Front View
Comparison image of Klipsch RP-400M and ELAC Debut 2.0 B6.2 Size and External Dimensions

Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base surface area of the Klipsch RP-400M is approximately 275.0cm2 / 42.6inch2 and base area of the ELAC Debut 2.0 B6.2 is approximately 522.6cm2 / 81.0inch2. The RP-400M requires 47% less surface area than the Debut 2.0 B6.2 which gives it a small advantage on placement in tight spaces.

Here is an another comparison that shows both speakers on a BDI Octave Media Cabinet, next to a standard size amplifier and turntable in scale:

Klipsch RP-400M vs ELAC Debut 2.0 B6.2 Size Comparison on a Media Console
Size Comparison image of Klipsch RP-400M and ELAC Debut 2.0 B6.2 on a Media Console
Weight Comparison

The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Klipsch RP-400M weighs 4.10kg / 9lbs and the ELAC Debut 2.0 B6.2 weighs 7.40kg / 16.3lbs. This makes the Debut 2.0 B6.2 80% heavier than the RP-400M.

Here is a comparison of how RP-400M and Debut 2.0 B6.2's weights compare with the average, max and min weights in Passive Bookshelf class.

Weight
All Bookshelf Speakers
Klipsch RP-400M
ELAC Debut 2.0 B6.2
Min
Average
Max

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

Here are the items that are included inside the box of RP-400M:
  • 2 Bookshelf loudspeakers
  • 2 Grilles (installed)
  • 8 Self-adhesive rubber feet
  • User Manual
  • Important Safety Instructions
  • Warranty Information
  • What's in the Box of ELAC Debut 2.0 B6.2?

    Here are the items that come with the Debut 2.0 B6.2:
  • 2 Bookshelf loudspeakers
  • 2 Grilles
  • Operating Instructions

  • Reasons to choose Klipsch Reference Premiere RP-400M over ELAC Debut 2.0 B6.2
    Sensitivity 93 dB vs 87 dB Play louder with same amount of amplification power
    Nominal Impedance 8 ohms vs 6 ohms Less selective with amplifiers
    Mounting Bracket Yes vs No Allows mounting on walls
    Height 298mm vs 375mm Easier to fit in smaller spaces
    Base Surface Area 275cm2 (144x191mm) vs 522cm2 (195x268mm) Takes less floor space
    Price per pair* 399USD vs 400USD costs less (*prices may change depending on the seller, location and time)
    Reasons to choose ELAC Debut 2.0 B6.2 over Klipsch Reference Premiere RP-400M
    Max Input Power 120 watts vs 50 watts Handle more power from your amplifier
    Woofer Size 6.5 inches vs 4 inches Larger woofer
    Low Frequency Response 44 Hz vs 52 Hz Generates deeper bass
    High Frequency Response 35k Hz vs 25k Hz Generates higher frequency
    Port Position Front vs Rear Gives more flexibility placing close to walls


    Klipsch RP-400M vs ELAC Debut 2.0 B6.2 Specs Table
    Detailed comparison of specifications
    General Klipsch Reference Premiere RP-400M ELAC Debut 2.0 B6.2
    Brand Klipsch ELAC
    Speaker Type Bookshelf speakers Bookshelf speakers
    Power Range up to 50 watts up to 120 watts
    Sensitivity 93 dB 87 dB
    Impedance 8 ohms 6 ohms
    Frequency Response 52-25k Hz 44-35k Hz
    Drivers
    Woofer Quantity 1 1
    Woofer Size 4" 6.5"
    Woofer Composition Cerametallic Woven Aramid-Fiber
    Woofer Surround Material Rubber Rubber
    Tweeter Size 1" 1"
    Tweeter Type Tractrix Horn Soft-Dome
    Aimable Tweeter No No
    Midrange Driver No No
    Crossover Frequency 1500Hz 2200Hz
    Firing Direction rear front
    Physical Specs
    Height 298.0mm (11.7") 375.0mm (14.8")
    Width 144.0mm (5.7") 195.0mm (7.7")
    Depth 191.0mm (7.5") 268.0mm (10.6")
    Weight 4.10kg (9lbs) 7.40kg (16.3lbs)
    Enclosure Bass Reflex Ported
    Finish MDF/Wood-grain vinyl MDF/Vinyl
    Available Colors Ebony, Walnut, Piano Black Black
    Mounting Bracket Keyhole No
    Recommended Stand Height 28-30" 24-28"
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs No No
    Other
    Parts Warranty 5 Years 3 Years
    Labor Warranty 5 Years 3 Years

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