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

KLH Concord vs Definitive Demand D17 Comparison

x
Speaker to replace
Change

KLH Concord

Passive Floor-standing | 28-23k Hz

KLH Concord
CHECK PRICE
Change
    
Definitive Demand D17

Passive Floor-standing | 42-22k Hz

Definitive Technology Demand D17
CHECK PRICE
KLH Concord KLH Concord
See at AMAZON
Definitive Demand D17 Definitive Demand D1...
See at AMAZON
KLH Concord
See at AMAZON
Definitive Demand D1...
See at AMAZON
KLH Concord vs Definitive Demand D17 Speaker Comparison

In this review, we will be comparing Concord and Demand D17, two Passive Floor-standing speakers from KLH and Definitive Technology.

Let's have a brief look at the main features of KLH Concord and Definitive Demand D17 first before getting into our more detailed comparison.

KLH Concord Key Specs

  • 2-way Design
  • 1" Tweeter
  • 2 x 6.5" Kevlar Woofer
  • 28-23k Hz Frequency Response
  • 94 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:up to 225watts
  • Weight:20.45kg
  • Dimensions (H x W x D): 1026.0" x 8-5/16" x 14-15/16"( 1026.0 x 212.0 x 380.0mm )

Definitive Demand D17 Key Specs

  • 3-way Design
  • 1" dome Tweeter
  • 6.5" Midrange
  • 2 x 6.5" Carbon-fiber Woofer
  • 6.5" Midrange
  • 42-22k Hz Frequency Response
  • 87 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:40-300watts
  • Weight:29.10kg
  • Dimensions (H x W x D): 1086.0" x 10-1/4" x 14-3/4"( 1086.0 x 261.0 x 375.0mm )

In the following sections, we will get into more detail in order to better understand how the KLH Concord and Definitive Demand D17 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

One of the fundamental differences between these two speakers is that Concord is a 2-way design whereas the Demand D17 is a 3-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.

Driver KLH Concord Definitive Demand D17
Driver Setup 2-way 3-way
Tweeter 1-inch 1-inch
Midrange - 1 x 6.5-inch
Woofer 2 x 6.5-inch 2 x 6.5-inch

Concord features a 1" anodized aluminum Tweeter and 2 x 6.5" Kevlar Woofer . On the other hand, the Demand D17 features a 1" aluminum dome Tweeter , a 6.5" Midrange and 2 x 6.5" Carbon-fiber Woofer .

Frequency Response

Concord has a frequency range of 28-23k Hz whereas Demand D17 has a frequency range of 42-22k Hz. With a minimum frequency of 28Hz, the Concord can go significantly deeper on the low side and provide stronger bass compared to the Demand D17's min frequency of 42Hz.

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 Floor-standing class in our database.

Low Frequency

Floor-standing Speakers

Concord
Demand D17
Min
Average
Max
High Frequency

Floor-standing Speakers

KLH Concord
Definitive Demand D17
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

Concord and Demand D17 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Concord sensitivity is rated at 94 dB and the Demand D17's is at 87 dB. This 7 dB difference makes the KLH Concord a more sensitive speaker compared to Definitive Demand D17, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

Concord
Demand D17
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.

Concord can handle a max power of 300 watts RMS from the amp the whereas Concord has a max power handling value of watts RMS , 300 watts less than the Demand D17.

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

Demand D17 features 5-Way Post posts which make bi-amping or bi-wiring possible. Concord has a 5-Way post which doesn't feature bi-amping/bi-wiring.

KLH Concord Terminals
KLH Concord's 5-Way post terminals

Definitive Demand D17 Terminals
Definitive Demand D17's 5-Way Post terminals allows Bi-amping or bi-wiring

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 KLH Concord's and Definitive Demand D17's external dimensions. KLH Concord has external dimensions of 1026.0 x 212.0 x 380.0mm ( 40-3/8 x 8-5/16 x 14-15/16inch) whereas Definitive Demand D17 has external dimensions of 1086.0 x 261.0 x 375.0mm ( 42-3/4 x 10-1/4 x 14-3/4inch) .

KLH Concord is 49mm narrower and 60mm shorter than Definitive Demand D17 but it is also 5mm deeper.

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 KLH Concord is approximately 805.6cm2 / 124.9inch2 and base area of the Definitive Demand D17 is approximately 978.8cm2 / 151.7inch2. The Concord requires 18% less surface area than the Demand D17 which gives it a small advantage 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 KLH Concord weighs 20.45kg / 45lbs and the Definitive Demand D17 weighs 29.10kg / 64lbs. This makes the Demand D17 42% heavier than the Concord.

Here is a comparison of how Concord and Demand D17's weights compare with the average, max and min weights in Passive Floor-standing class.

Weight
All Floor-standing Speakers
KLH Concord
Definitive Demand D17
Min
Average
Max

What's in the Box of KLH Concord?

Here are the items that are included inside the box of Concord:
  • Floorstanding loudspeaker
  • Grille
  • 4 Spike feet (w/ locking nut attached)
  • 4 Protective discs
  • 4 Rubber feet
  • Port plug
  • Manual
  • ATTENTION! note
  • What's in the Box of Definitive Demand D17?

    Here are the items that come with the Demand D17:
  • Left floorstanindg loudspeaker
  • Right floorstading loudspeaker
  • 2 Grilles
  • 4 Jumper-straps (pre-installed)
  • 2 Bases
  • 8 Spike feet
  • 8 Floor-glides
  • 8 Lock-rings
  • 8 Screws
  • Cleaning cloth
  • Owners Manual

  • Reasons to choose KLH Concord over Definitive Technology Demand D17
    Sensitivity 94 dB vs 87 dB Play louder with same amount of amplification power
    Low Frequency Response 28 Hz vs 42 Hz Generates deeper bass
    High Frequency Response 23k Hz vs 22k Hz Generates higher frequency
    Height 1026mm vs 1086mm Easier to fit in smaller spaces
    Base Surface Area 805cm2 vs 978cm2 Takes less floor space
    Price per pair* 1000USD vs 2798USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose Definitive Technology Demand D17 over KLH Concord

    Driver Setup 3-way vs 2-way Have a dedicated mid-range driver
    Bi-Amping and Bi-Wiring Yes vs No Allows bi-amping and bi-wiring connections
    KLH Concord vs Definitive Demand D17 Specs Table
    Detailed comparison of specifications
    General KLH Concord Definitive Technology Demand D17
    Brand KLH Definitive Technology
    Speaker Type Floor-standing speaker Floor-standing speaker
    Power Range up to 225 watts 40-300 watts
    Sensitivity 94 dB 87 dB
    Impedance 8 ohms 8 ohms
    Frequency Response 28-23k Hz 42-22k Hz
    Drivers
    Woofer Quantity 2 2
    Woofer Size 6.5" 6.5"
    Woofer Composition Kevlar Carbon-fiber
    Woofer Surround Material Butyl Rubber Rubber
    Tweeter Size 1" 1"
    Tweeter Type n/a dome
    Aimable Tweeter No No
    Midrange Driver No 6.5"
    Physical Specs
    Height 1026.0mm (40.4") 1086.0mm (42.8")
    Width 212.0mm (8.3") 261.0mm (10.3")
    Depth 380.0mm (15") 375.0mm (14.8")
    Weight 20.45kg (45lbs) 29.10kg (64lbs)
    Enclosure Bass Reflex Passive Radiator
    Finish MDF/Wood-grain vinyl MDF/Aluminum
    Available Colors Black Gloss Black
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs No Yes
    Other
    Parts Warranty 10 Years 5 Years
    Labor Warranty 10 Years 5 Years

    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
    Copyright © 2025 by SpeakerDecision
    About Privacy Contact US Camera Decision

    Report a Correction