ATC

The most compact expression of ATC loudspeaker design.

ATC SCM7 Product Overview

The ATC SCM7 is the most compact loudspeaker in the ATC home hi-fi range.
Despite its modest size, it is designed and built according to the same engineering principles that define all loudspeakers from ATC.

The SCM7 is intended for listeners who want accuracy, clarity and consistency, without the need for large enclosures or high sound pressure levels.

At Authentic High End, we consider the SCM7 a true ATC loudspeaker in compact form, not a simplified or voiced alternative.

Design Intent

ATC designs loudspeakers with a clear objective:
to reproduce the signal as accurately and consistently as possible, without tonal enhancement.

For the SCM7, this means:

• a compact enclosure suited to smaller rooms

• a two-way passive loudspeaker design

• a focus on midrange accuracy, timing and control

The SCM7 is not designed to impress with bass weight or size illusion, but to remain faithful to the recording.

Engineering & Construction

• Passive two-way loudspeaker

• ATC-designed drive units

• Rigid cabinet construction

• Designed and built in the UK

ATC designs and manufactures its own drive units in-house, allowing full control over consistency and performance across production runs.

Listening Character

The ATC SCM7 is characterised by:

• clear and intelligible midrange reproduction

• controlled low-frequency behaviour for its size

• stable stereo imaging

• an absence of artificial warmth or emphasis

It rewards careful system matching and high-quality recordings, and remains comfortable during long listening sessions.

Room Size & Placement

The SCM7 is best suited for:

• small to medium-sized listening rooms

• stand-mounted placement

• listening distances where accuracy and coherence matter more than scale

Its compact dimensions make it easy to integrate into real living spaces without visual dominance.

System Matching

As a passive loudspeaker, the SCM7 requires external amplification.

ATC recommends:

• stable, high-quality amplification

• amplifiers capable of good current delivery

• neutral electronics that do not colour the signal

The SCM7 benefits from amplification that prioritises control and linearity, rather than tonal shaping.

Position Within the ATC Entry Series

Within the ATC Entry Series, the SCM7:

• is the most compact model

• sits below the SCM11 and SCM19

• shares the same design philosophy as larger ATC loudspeakers

It offers an authentic introduction to the ATC sound, scaled for smaller spaces.

Who Is the ATC SCM7 For?

The SCM7 is ideal for listeners who:

• value accuracy over spectacle

• listen at realistic sound levels

• want a compact but serious loudspeaker

• plan to build a system that can scale with better electronics

It is often chosen as a long-term solution rather than a temporary step.

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Greater scale, the same ATC truth

ATC SCM11 Product Overview

The ATC SCM11 builds on the foundation of the SCM7, offering greater scale and presence while remaining faithful to the engineering principles of ATC.

Designed and built in the UK, the SCM11 is intended for listeners who appreciate ATC’s accuracy and want more room-filling capability without moving to larger cabinets or floorstanding loudspeakers.

At Authentic High End, we position the SCM11 as a natural step up within the ATC Entry Series: still compact, but clearly more authoritative.

Design Intent

The SCM11 follows ATC’s core design objective:
to reproduce music accurately, consistently and without embellishment.

Compared to smaller models, the SCM11 is designed to:

• deliver greater dynamic ease

• move more air with less strain

• maintain clarity at higher listening levels

It does this without changing ATC’s tonal intent or adding artificial warmth.

Engineering & Construction

• Passive two-way loudspeaker

• ATC-designed and manufactured drive units

• Rigid cabinet construction

• Designed and built in the UK

ATC’s in-house control over drive unit design ensures consistency, reliability and long-term performance.

Listening Character

The ATC SCM11 is characterised by:

• clear, articulate midrange reproduction

• improved low-frequency authority compared to smaller models

• stable imaging and focus

• neutral tonal balance

It remains composed at realistic listening levels and reveals differences in recordings and upstream electronics.

Room Size & Placement

The SCM11 is well suited to:

• small to medium-sized listening rooms

• stand-mounted placement

• listeners who want more scale than compact entry models provide

Its size allows it to integrate easily into domestic spaces while offering noticeably greater presence.

System Matching

As a passive loudspeaker, the SCM11 requires external amplification.

ATC recommends:

• high-quality, stable amplification

• good current delivery rather than excessive power ratings

• neutral electronics that preserve timing and control

The SCM11 rewards careful system matching and benefits from amplification with strong grip and linear behaviour.

Position Within the ATC Entry Series

Within the Entry Series, the SCM11:

• sits above the SCM7

• offers increased scale and authority

• remains below the larger SCM19

It is often chosen by listeners who want one loudspeaker to live with long-term, without feeling constrained by size.

Who Is the ATC SCM11 For?

The SCM11 is ideal for listeners who:

• value accuracy and control

• listen at realistic levels but want added presence

• have small to medium-sized rooms

• prefer a compact stand-mount design with serious performance

It represents a balanced point between compactness and musical authority.

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Maximum scale within the ATC Entry Series

ATC SCM19 Product Overview

The ATC SCM19 is the largest and most capable loudspeaker in the ATC Entry Series.
It is designed for listeners who appreciate ATC’s hallmark accuracy and control, but require greater dynamic headroom and room-filling presence than smaller stand-mount models can provide.

As with all loudspeakers from ATC, the SCM19 is engineered, assembled and tested in the UK, following the same principles used throughout ATC’s professional and domestic ranges.

At Authentic High End, we position the SCM19 as the culmination of the Entry Series — compact enough to remain domestic-friendly, yet powerful enough to anchor a serious high-end system.

Design Intent

The SCM19 exists to extend the Entry Series in terms of:

• scale

• authority

• dynamic ease

without altering ATC’s fundamental goal: accurate, uncoloured sound reproduction.

Rather than voicing the speaker for impact, ATC increases cabinet volume and system capability so the loudspeaker can play more freely and with less strain, even at realistic listening levels.

Engineering & Construction

• Passive two-way loudspeaker

• ATC-designed and manufactured drive units

• Larger cabinet than SCM7 and SCM11

• Rigid enclosure construction

• Designed and built in the UK

ATC’s in-house control over drive unit design and manufacturing ensures consistency across the range and long-term reliability.

Listening Character

The ATC SCM19 is characterised by:

• clear and stable midrange reproduction

• noticeably greater bass authority compared to smaller Entry Series models

• effortless dynamics at realistic listening levels

• neutral tonal balance without emphasis

It maintains composure where smaller speakers may begin to sound constrained, making it particularly suitable for more demanding music and larger rooms.

Room Size & Placement

The SCM19 is best suited for:

• medium-sized listening rooms

• stand-mounted placement

• listeners who want stand-mount precision with increased physical presence

While still a stand-mount loudspeaker, it benefits from adequate space and solid stands to perform at its best.

System Matching

As a passive loudspeaker, the SCM19 requires external amplification.

ATC recommends:

• high-quality, stable amplification

• good current delivery and control

• neutral electronics that do not add tonal coloration

The SCM19 scales clearly with better electronics and rewards careful system matching.

Position Within the ATC Range

Within the ATC lineup, the SCM19:

• is the largest model in the Entry Series

• sits below the Classic Series loudspeakers

• bridges compact stand-mount designs and larger reference models

For many listeners, it represents the ideal balance between size, performance and practicality.

Who Is the ATC SCM19 For?

The SCM19 is ideal for listeners who:

• value accuracy and control

• want more scale than compact speakers provide

• prefer stand-mount loudspeakers over floorstanders

• plan a long-term, high-quality system

It is often chosen by music lovers who want ATC performance without moving to larger enclosures.

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Reference monitor accuracy for the home

ATC SCM20SL Product Overview

The ATC SCM20 is a cornerstone model within the Classic Series from ATC.
It translates ATC’s professional monitor expertise into a domestic loudspeaker designed for listeners who value accuracy, consistency and dynamic stability over spectacle.

The SCM20 is available in passive and active versions, allowing it to integrate seamlessly into both traditional hi-fi systems and fully optimised ATC active setups.

At Authentic High End, we consider the SCM20 one of the most revealing and honest loudspeakers in the ATC range — compact in form, but uncompromising in intent.

Design Intent

The SCM20 is conceived as a true reference loudspeaker.
Its purpose is not to impress with scale or warmth, but to reproduce music with maximum accuracy and minimum distortion, at both low and realistic listening levels.

ATC’s design priorities for the SCM20 include:

• linear frequency response

• low distortion across the operating range

• stable behaviour under dynamic load

This makes the SCM20 particularly well suited for listeners who want to hear exactly what is on the recording.

Engineering & Construction

According to ATC, the SCM20 features:

• a sealed enclosure design

• ATC-designed and manufactured drive units

• rigid cabinet construction for low coloration

• careful optimisation for nearfield to medium-distance listening

The sealed cabinet approach prioritises timing accuracy and controlled bass response, rather than maximum low-frequency extension.

Passive and Active Versions

The SCM20 is offered in two distinct configurations:

SCM20 Passive

• Designed for use with external amplification

• Allows system tuning through amplifier choice

• Ideal for listeners who prefer a traditional passive loudspeaker setup

SCM20 Active

• Incorporates ATC’s own amplification

• Optimised crossover and amplification integration

• Designed as a complete, factory-matched solution

Both versions share the same acoustic goals and voicing.

Listening Character

The ATC SCM20 is characterised by:

• exceptional midrange clarity

• stable and precise stereo imaging

• controlled, articulate bass

• effortless dynamics without strain

It remains composed at realistic listening levels and reveals differences in recordings and upstream electronics with clarity.

Room Size & Placement

The SCM20 is well suited for:

• small to medium-sized listening rooms

• stand-mounted placement

• listeners who prioritise accuracy and focus over room-filling scale

Its controlled dispersion and sealed design make it particularly predictable in real living spaces.

System Matching

• Passive version: benefits from high-quality, stable amplification with good current delivery

• Active version: requires only a suitable source and preamplifier

The SCM20 scales clearly with system quality and rewards careful matching.

Position Within the ATC Range

Within the ATC lineup, the SCM20:

• sits above the Entry Series models (SCM7, SCM11, SCM19)

• forms the entry point into the Classic Series

• serves as a reference point for ATC’s larger Classic and Tower models

It is often chosen as a long-term reference loudspeaker.

Who Is the ATC SCM20 For?

The SCM20 is ideal for listeners who:

• value neutrality and precision

• listen critically and for extended periods

• want studio-grade accuracy in a domestic form

• prefer stand-mounted loudspeakers over floorstanders

It is a loudspeaker designed to grow with the listener, not to be replaced quickly.

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Full-scale reference monitoring for the home

ATC SCM50 Product Overview

The ATC SCM50 is one of the most iconic loudspeakers in the Classic Series from ATC.
It is derived directly from ATC’s professional monitoring heritage and adapted for high-end domestic listening, where accuracy, dynamic stability and scale are required without compromise.

Available in both passive and active versions, the SCM50 is designed to operate effortlessly at realistic listening levels, maintaining composure and clarity regardless of musical complexity.

At Authentic High End, we regard the SCM50 as a true reference loudspeaker for serious music listeners who want studio-grade performance in a home environment.

Design Intent

The SCM50 is designed to:

• reproduce music with maximum accuracy and minimum distortion

• maintain stability across a wide dynamic range

• scale effortlessly from quiet listening to realistic sound pressure levels

Rather than adding warmth or excitement, the SCM50 focuses on preserving the integrity of the original recording.

Engineering & Construction

According to ATC, the SCM50 features:

• a three-way loudspeaker design

• ATC-designed and manufactured drive units

• rigid cabinet construction to minimise coloration

• engineering derived from ATC’s professional monitor designs

The three-way configuration allows each driver to operate within its optimal range, improving clarity and reducing distortion.

Passive and Active Versions

The SCM50 is offered in two configurations:

SCM50 Passive

• Designed for use with high-quality external amplification

• Allows system tuning through amplifier choice

• Suited to listeners who prefer a traditional passive loudspeaker setup

SCM50 Active

• Incorporates ATC’s own amplification

• Active crossover and amplifier integration

• Designed as a fully optimised, factory-matched system

Both versions share the same acoustic goals and voicing.

Listening Character

The ATC SCM50 is characterised by:

• exceptional midrange realism

• powerful yet controlled low-frequency reproduction

• effortless dynamics at realistic listening levels

• stable and precise stereo imaging

It reveals differences in recordings and upstream electronics clearly, without sounding analytical or fatiguing.

Room Size & Placement

The SCM50 is best suited for:

• medium to large listening rooms

• listeners who want full-range authority without floorstanding designs

• stand-mounted placement with adequate space

Its scale and output capability make it a natural choice for rooms where smaller speakers may feel constrained.

System Matching

• Passive version: benefits from high-quality, stable amplification with strong current delivery

• Active version: requires only a suitable source and preamplifier

The SCM50 scales significantly with system quality and rewards careful matching.

Position Within the ATC Range

Within the ATC lineup, the SCM50:

• sits above the SCM20 in scale and output capability

• forms a bridge between compact reference monitors and larger Classic and Tower models

• shares core technology with ATC’s larger reference loudspeakers

It is often chosen as a long-term reference solution.

Who Is the ATC SCM50 For?

The SCM50 is ideal for listeners who:

• value accuracy and dynamic realism

• listen at realistic sound levels

• have medium to large listening rooms

• want studio-grade performance without moving to very large enclosures

It is a loudspeaker built for serious, long-term listening.

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Large-scale reference monitoring for uncompromised home listening

ATC SCM100 Product Overview

The ATC SCM100 is a large-format reference loudspeaker from the Classic Series by ATC.
Derived directly from ATC’s professional monitoring lineage, the SCM100 is intended for listeners who require high output capability, low distortion and unwavering accuracy, even at realistic listening levels.

Available in passive and active versions, the SCM100 is engineered to deliver scale and authority without changing ATC’s fundamental goal: faithful reproduction of the source.

At Authentic High End, we consider the SCM100 a cornerstone for serious reference systems in larger listening rooms.

Design Intent

The SCM100 is designed to:

• operate effortlessly across a wide dynamic range

• maintain clarity and composure at higher sound pressure levels

• preserve tonal accuracy without embellishment

Rather than adding warmth or impact, the SCM100 focuses on consistency, control and realism, allowing the recording to dictate the experience.

Engineering & Construction

According to ATC, the SCM100 features:

• a three-way loudspeaker design

• ATC-designed and manufactured drive units

• robust cabinet construction to minimise coloration

• engineering derived from ATC’s professional monitor platforms

The three-way configuration allows each driver to work within an optimal range, reducing distortion and increasing dynamic headroom.

Passive and Active Versions

The SCM100 is available in two configurations:

SCM100 Passive

• Designed for use with high-quality external amplification

• Suitable for listeners who want to select their own amplification

• Ideal for traditional high-end passive systems

SCM100 Active

• Integrates ATC’s own amplification

• Uses active crossover topology

• Designed as a fully optimised, factory-matched solution

Both versions share the same acoustic objectives and voicing.

Listening Character

The ATC SCM100 is characterised by:

• exceptional midrange realism

• powerful yet controlled low-frequency reproduction

• effortless dynamics without compression

• stable, precise stereo imaging

It remains composed where smaller loudspeakers may reach their limits, making it suitable for demanding programme material and higher playback levels.

Room Size & Placement

The SCM100 is best suited for:

• medium to large listening rooms

• listeners who want realistic scale and headroom

• installations where speaker placement and space can be optimised

Its size and capability require appropriate room volume to perform at its best.

System Matching

• Passive version: benefits from high-quality, stable amplification with strong current delivery

• Active version: requires only a suitable source and preamplifier

The SCM100 scales clearly with system quality and rewards careful system design.

Position Within the ATC Range

Within the ATC lineup, the SCM100:

• sits above the SCM50 in output capability and scale

• forms a bridge between Classic Series monitors and the largest ATC models

• shares core technology with ATC’s flagship loudspeakers

It is often selected as a long-term reference in serious listening environments.

Who Is the ATC SCM100 For?

The SCM100 is ideal for listeners who:

• require high output and dynamic realism

• value accuracy and low distortion

• have larger listening rooms

• want professional-grade performance in a domestic context

It is a loudspeaker designed for uncompromised, long-term listening.

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Reference-scale monitoring for the largest listening rooms

ATC SCM150 Product Overview

The ATC SCM150 is the largest loudspeaker in the Classic Series from ATC.
It is designed for listeners who require maximum dynamic headroom, low distortion and absolute control at realistic playback levels—without departing from ATC’s commitment to accuracy.

Available in passive and active configurations, the SCM150 brings ATC’s professional monitoring expertise into the home at full scale.

At Authentic High End, we position the SCM150 as a no-compromise reference for large rooms and long-term systems.

Design Intent

The SCM150 is engineered to:

• reproduce music accurately at high sound pressure levels

• maintain stability and clarity during complex, dynamic passages

• preserve tonal balance without embellishment

Rather than adding character, the SCM150 focuses on consistency and realism, allowing the recording to speak for itself.

Engineering & Construction

According to ATC, the SCM150 features:

• a three-way loudspeaker design

• ATC-designed and manufactured drive units

• a large, rigid enclosure to minimise coloration

• engineering derived directly from ATC’s professional monitor platforms

The increased cabinet volume and driver capability provide greater bass authority and dynamic ease compared to smaller Classic Series models.

Passive and Active Versions

The SCM150 is offered in two configurations:

SCM150 Passive

• Intended for use with high-quality external amplification

• Allows the listener to select amplification according to system goals

• Suitable for traditional high-end passive systems

SCM150 Active

• Integrates ATC’s own amplification

• Uses an active crossover topology

• Designed as a fully optimised, factory-matched solution

Both versions share the same acoustic goals and voicing.

Listening Character

The ATC SCM150 is characterised by:

• exceptional midrange realism

• powerful, controlled low-frequency reproduction

• effortless dynamics with vast headroom

• stable imaging even at high playback levels

It remains composed where smaller loudspeakers reach their limits, making it suitable for demanding programme material and large spaces.

Room Size & Placement

The SCM150 is best suited for:

• large listening rooms

• listeners who want realistic scale and authority

• installations where speaker placement and room acoustics can be optimised

Its size and output capability require adequate space to perform as intended.

System Matching

• Passive version: benefits from powerful, stable amplification with strong current delivery

• Active version: requires only a suitable source and preamplifier

The SCM150 rewards careful system design and scales clearly with upstream quality.

Position Within the ATC Range

Within the ATC lineup, the SCM150:

• sits above the SCM100 in scale and output capability

• represents the largest Classic Series loudspeaker

• shares core technology with ATC’s flagship professional monitors

It is often chosen as a final destination loudspeaker.

Who Is the ATC SCM150 For?

The SCM150 is ideal for listeners who:

• require very high output capability

• value accuracy and low distortion

• have large listening rooms

• want studio-grade performance at home

It is a loudspeaker designed for uncompromised, long-term listening.

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