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ELAC Debut 2.0 B6.2 vs Polk S15 Comparison

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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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Polk S15

Passive Bookshelf | 50-40k Hz

Polk Audio Signature S15
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ELAC Debut 2.0 B6.2 ELAC Debut 2.0 B6.2
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Polk S15 Polk S15
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ELAC Debut 2.0 B6.2
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Polk S15
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ELAC Debut 2.0 B6.2 vs Polk S15 Speaker Comparison

In this review, we will be comparing Debut 2.0 B6.2 and S15, two Passive Bookshelf speakers from ELAC and Polk Audio.

Let's have a brief look at the main features of ELAC Debut 2.0 B6.2 and Polk S15 first before getting into our more detailed comparison.

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 )

Polk S15 Key Specs

  • 2-way Design
  • 1" Dome Tweeter
  • 5.25" Mica-reinforced polypropylene Woofer
  • 50-40k Hz Frequency Response
  • 88 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:20-100watts
  • Weight:5.90kg
  • Dimensions (H x W x D): 304.8" x 7.4" x 10.2"( 304.8 x 190.0 x 260.4mm )

What size room are the ELAC Debut 2.0 B6.2 and Polk S15 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* ELAC Debut 2.0 B6.2 Polk S15
Near-field Poor Average
Small Room Average Good
Mid-size Room Good Average
Large Room Average Poor
Very Large Room Poor Bad

(* 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 ELAC Debut 2.0 B6.2 and Polk S15 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 Debut 2.0 B6.2 and S15 are 2-way speakers.

Driver ELAC Debut 2.0 B6.2 Polk S15
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 1 x 6.5-inch 1 x 5.25-inch

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. On the other hand, the S15 features a 1" Terylene Dome Tweeter and 1 x 5.25" Mica-reinforced polypropylene Woofer with a Crossover frequency at 2500Hz.

Frequency Response

Debut 2.0 B6.2 has a frequency range of 44-35k Hz whereas S15 has a frequency range of 50-40k 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 S15's min frequency of 50Hz.

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

Debut 2.0 B6.2
S15
Min
Average
Max
High Frequency

Bookshelf Speakers

ELAC Debut 2.0 B6.2
Polk S15
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

Debut 2.0 B6.2 is a 6 ohms speaker compared to the S15 which has a nominal impedance of 8 ohms.

These two speakers also have different sensitivity levels. Debut 2.0 B6.2 sensitivity is rated at 87 dB and the S15's is rated at 88 dB. This 1 dB difference makes the Polk S15 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

Debut 2.0 B6.2
S15
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.

Debut 2.0 B6.2 can handle a max power of 120 watts RMS from the amp the whereas S15 has a max power handling value of 100 watts RMS, 20 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

Debut 2.0 B6.2 features Pair of Binding Posts - Gold Plated type posts and S15 has a Pair of Binding Posts - Gold Plated type posts. None of these speakers feature bi-amping/bi-wiring.

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

Cabinet Type and Port Position

Debut 2.0 B6.2 has a front firing port whereas S15 has a rear 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 Polk S15 with its rear-firing 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 ELAC Debut 2.0 B6.2's and Polk S15's external dimensions. 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) whereas Polk S15 has external dimensions of 304.8 x 190.0 x 260.4mm ( 12.0 x 7.4 x 10.2inch) .

ELAC Debut 2.0 B6.2 is clearly the larger of the two speakers. Its body is 5mm wider, 70.2mm taller and 7.6mm deeper than Polk S15.

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 ELAC Debut 2.0 B6.2 is approximately 522.6cm2 / 81.0inch2 and base area of the Polk S15 is approximately 494.8cm2 / 76.7inch2. The Debut 2.0 B6.2 requires 6% more surface area than the S15 which gives it a small disadvantage on placement in tight spaces.

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 ELAC Debut 2.0 B6.2 weighs 7.40kg / 16.3lbs and the Polk S15 weighs 5.90kg / 13lbs. This makes the Debut 2.0 B6.2 25% heavier than the S15.

Here is a comparison of how Debut 2.0 B6.2 and S15's weights compare with the average, max and min weights in Passive Bookshelf class.

Weight
All Bookshelf Speakers
ELAC Debut 2.0 B6.2
Polk S15
Min
Average
Max

What's in the Box of ELAC Debut 2.0 B6.2?

Here are the items that are included inside the box of Debut 2.0 B6.2:
  • 2 Bookshelf loudspeakers
  • 2 Grilles
  • Operating Instructions
  • What's in the Box of Polk S15?

    Here are the items that come with the S15:
  • 2 Bookshelf loudspeakers
  • 2 Grille (attached)
  • 8 Self-adhesive rubber feet
  • Wall-mount template
  • Owners Manual
  • Online Product Registration

  • Reasons to choose ELAC Debut 2.0 B6.2 over Polk Audio Signature S15
    Max Input Power 120 watts vs 100 watts Handle more power from your amplifier
    Woofer Size 6.5 inches vs 5.25 inches Larger woofer
    Low Frequency Response 44 Hz vs 50 Hz Generates deeper bass
    Port Position Front vs Rear Gives more flexibility placing close to walls

    Reasons to choose Polk Audio Signature S15 over ELAC Debut 2.0 B6.2

    Sensitivity 88 dB vs 87 dB Play louder with same amount of amplification power
    Nominal Impedance 8 ohms vs 6 ohms Less selective with amplifiers
    High Frequency Response 40k Hz vs 35k Hz Generates higher frequency
    Mounting Bracket Yes vs No Allows mounting on walls
    Height 304mm vs 375mm Easier to fit in smaller spaces
    Base Surface Area 494cm2 vs 522cm2 Takes less floor space
    Price per pair* 259USD vs 400USD costs less (*prices may change depending on the seller, location and time)
    ELAC Debut 2.0 B6.2 vs Polk S15 Specs Table
    Detailed comparison of specifications
    General ELAC Debut 2.0 B6.2 Polk Audio Signature S15
    Brand ELAC Polk Audio
    Speaker Type Bookshelf speakers Bookshelf speakers
    Power Range up to 120 watts 20-100 watts
    Sensitivity 87 dB 88 dB
    Impedance 6 ohms 8 ohms
    Frequency Response 44-35k Hz 50-40k Hz
    Drivers
    Woofer Quantity 1 1
    Woofer Size 6.5" 5.25"
    Woofer Composition Woven Aramid-Fiber Mica-reinforced polypropylene
    Woofer Surround Material Rubber Butyl rubber
    Tweeter Size 1" 1"
    Tweeter Type Soft-Dome Dome
    Aimable Tweeter No No
    Midrange Driver No No
    Crossover Frequency 2200Hz 2500Hz
    Firing Direction front rear
    Physical Specs
    Height 375.0mm (14.8") 304.8mm (12")
    Width 195.0mm (7.7") 190.0mm (7.5")
    Depth 268.0mm (10.6") 260.4mm (10.3")
    Weight 7.40kg (16.3lbs) 5.90kg (13lbs)
    Enclosure Ported Bass Reflex
    Finish MDF/Vinyl Meddite MDF
    Available Colors Black Black, Walnut, Brown Walnut
    Mounting Bracket No Keyhole
    Recommended Stand Height 24-28" 24-30"
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs No No
    Other
    Parts Warranty 3 Years 5 Years
    Labor Warranty 3 Years 5 Years

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