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. ATC Speakers
  3. Powered Stereo Speakers
  4. ATC SCM40A
ATC SCM40A Review
ATC SCM40A - Front View

Compare To

Main Features

  • 0.98" Tweeter
  • 2.95" Midrange
  • 6.46" Woofer
  • 48-22k Hz Frequency Response
  • Integrated Amplifier
  • Weight: 79.37 lbs / 36.00 kg
  • Dimensions(HxWxD): 38.58"x14.57"x13.54" / 980.0 x 370.0 x 344.0mm
MSRP: $13,999 (list price)
Check price atAmazon›
x
Add a Speaker for comparison
ATC SCM40A Review
ATC SCM40A ATC SCM40A
Check price atAmazon›

Made by ATC · United Kingdom · since 1974 · sold through dealers

ATC SCM40A is a 3-way Powered Sealed Floor-standing speaker by ATC. It was released in 2018. The built-in power amplifier saves space & eliminates the need to connect ATC SCM40A to a stereo receiver or external power amp. It features a 0.98" Tweeter, 1 x 2.95" Midrange and 1 x 6.46" Woofer. ATC lists the drivers as HF ATC 25mm dual suspension Tweeter, Mid 75mm ATC Soft Dome, LF ATC 164mm SC. The speaker has a frequency range of 48-22k Hz. ATC SCM40A has an MSRP of 13999$ per pair.

Frequency Response of the ATC SCM40A Speaker

ATC SCM40A has a Frequency response range of 48-22k Hz. With a minimum frequency of 48 Hz, SCM40A delivers moderate bass depth so depending on your use case, you might want to consider adding a subwoofer to your system.

Here we have a comparison of how SCM40A's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Floor-standing Speakers
ATC SCM40A
Min
Average
Median
Thinking about a subwoofer for the ATC SCM40A?
  • Every powered subwoofer we cover, whatever the budget

Crossover frequency of the ATC SCM40A?

The crossover points of the SCM40A are set at 380Hz & 3.5kHz.

ATC SCM40A driver frequency bands48-380Woofer 6.46"380-3.5kMidrange 2.95"3.5k-22kTweeter 0.98"20501002005001k2k5k10k20k40kHz, log scale

Inputs and Outputs

  • USB Port:
  • Subwoofer Output
  • Digital Input:
  • HDMI Input:
  • Headphone Jack:
  • Ethernet Port

ATC SCM40A External Dimensions and Weight

ATC SCM40A has external dimensions of (Height x Width x Depth) 38.58 x 14.57 x 13.54inch (980.0 x 370.0 x 344.0mm ).

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 ATC SCM40A is approximately 1272.8cm2 / 197.3inch2.

Find speakers that fit your shelf or alcove →  ·  Work out where they should sit in the room →

Weight

The ATC SCM40A weighs 36.00kg / 79.2lbs per piece. Here is a comparison of how SCM40A's weight compares with the average, max and min weights in its class.

Weight
All Floor-standing Speakers
ATC SCM40A
Min
Average
Median
Weight
Floor-standing Speakers under $20000
ATC SCM40A
Min
Average
Max

Cabinet type and Materials

ATC SCM40A has a Sealed type cabinet.

Does the ATC SCM40A come with a Grille?

SCM40A comes with grilles. 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.

Recommended Accessories

Here is a list of accessories that we think you may need for the ATC SCM40A.

  • 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.

Official Product Page

Official manufacturer's product page for the ATC SCM40A speaker can be found below:
Official Product Page for ATC SCM40A

Frequently Asked Questions about ATC SCM40A

Does the ATC SCM40A need a subwoofer?

The ATC SCM40A reaches down to 48Hz (full range 48-22k Hz). That covers most music, though a subwoofer still adds the bottom octave for home theatre.

What drivers does the ATC SCM40A use?

The ATC SCM40A is a 3-way design using a 0.98" tweeter, a 2.95" midrange and a 6.46" woofer.

Is the ATC SCM40A sealed or ported?

The ATC SCM40A 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.

Does the ATC SCM40A come with grilles?

Yes. The ATC SCM40A comes with removable grilles.

How big and heavy is the ATC SCM40A?

The ATC SCM40A weighs 36.00kg / 79.2lbs each and measures 38.58 x 14.57 x 13.54inch (HxWxD).

How much does the ATC SCM40A cost?

The ATC SCM40A has a manufacturer's list price (MSRP) of $13,999 per pair.


ATC SCM40A Detailed Specifications

General
BrandATC
Full Model NameATC SCM40A
Speaker Type3-way Floor-standing
Max SPL112 dB
Frequency Response48-22k Hz
Release Date2018
Amplifier Specs
DAC Specs
DRIVERS
Woofer Size6.46-inch
Woofer Composition
Tweeter Size0.98-inch
Midrange Size2.95-inch
Crossover freq380Hz & 3.5kHz
DIGITAL ECOSYSTEM
Amplifier Output150W LF, 60W MF, 32W HF

CONNECTIONS
Connector TypeFemale XLR
PHYSICAL SPECS
Height980.0mm ( 38.58-inch)
Width370.0mm ( 14.57-inch)
Depth344.0mm ( 13.54-inch)
Height980.0mm ( 38.58-inch)
Weight36 kg (79.4 lbs)
EnclosureSealed
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty
Labor Warranty
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

The Marantz MCR 60n Has a CD Player, a Phono Stage and HDMI eARC. Nothing Else We List Has All Three.
Kanto Replaced the TUK With Two Speakers. Neither Has the Phono Stage.
A Triode Switch Used to Start at 3,495 Dollars. The Cayin Jazz 70 Is 1,399.
A 1,499 Dollar 300B Amplifier, and What Ten Watts Can Actually Drive
Triangle's Solstice Range Replaces the Esprit, and Every Cabinet Got Bigger
Yamaha's NX-70A Takes Our HDMI Speaker Count to 31, and 15 of Them Do eARC


Latest Powered Floor-standing Speakers
Focal Diva Mezza Utopia
Focal Diva Mezza Utopia
3-way Floor-standing | 25-40k Hz
Fluance Ri91
Fluance Ri91
3-way Floor-standing | 40-30k Hz
Focal Diva Utopia
Focal Diva Utopia
3-way Floor-standing | 27-40k Hz
Fluance Ai81 Elite
Fluance Ai81
2-way Floor-standing | 30-20k Hz
KEF LS60 Wireless
KEF LS60 Wireless
3-way Floor-standing | 31-24k Hz
Wharfedale Diamond Active A2
Wharfedale Diamond Active A2
2-way Floor-standing | 40-20k Hz
Q Acoustics M40
Q Acoustics M40
2-way Floor-standing | 38-22k Hz
Dynaudio Focus 50
Dynaudio Focus 50
3-way Floor-standing | 22-22k Hz
Dynaudio Focus 30
Dynaudio Focus 30
3-way Floor-standing | 30-22k Hz
Q Acoustics Q Active 400
Q Acoustics Q Active 400
2-way Floor-standing | 35-20k Hz


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