A large black rectangular ATC SCM300ASL Pro active studio monitor on a matching stand, with a soft dome tweeter and midrange dome above twin 15-inch bass drivers on the front baffle.

ATC LOUDSPEAKERS SCM300ASL Pro (single) — Studio Monitor

$32,999.00
$32,999.00
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A large black rectangular ATC SCM300ASL Pro active studio monitor on a matching stand, with a soft dome tweeter and midrange dome above twin 15-inch bass drivers on the front baffle.
  • A large black rectangular ATC SCM300ASL Pro active studio monitor on a matching stand, with a soft dome tweeter and midrange dome above twin 15-inch bass drivers on the front baffle.
  • ATC LOUDSPEAKERS SCM300ASL Pro (single) — Studio Monitor, nearfield reference loudspeaker
  • A large black rectangular ATC SCM300ASL Pro active studio monitor on a matching stand, with a soft dome tweeter and midrange dome above twin 15-inch bass drivers on the front baffle.
  • ATC LOUDSPEAKERS SCM300ASL Pro (single) — Studio Monitor, nearfield reference loudspeaker
ATC LOUDSPEAKERS SCM300ASL Pro (single) — Studio Monitor

ATC LOUDSPEAKERS SCM300ASL Pro (single) — Studio Monitor

Large-format three-way active studio monitor with 34mm soft dome tweeter, 75mm midrange, and twin 15-inch bass drivers powered by dedicated 850W amplifier. Designed for medium-to-large control rooms and film re-recording stages, capable of 121dB SPL at 1 metre.

$32,999.00
$32,999.00
Condition Brand New
Specs Verified model facts
Checked against 1 listing
Verified
Use Professional main-monitor duty in medium-to-large control rooms and film/post re-recording stages that need very high, low-distortion SPL (121dB at 1m) and full-range extension (25Hz-20kHz free-standing, 20Hz soffit-mounted).
Requires appropriate audio and data cables, compatible monitoring, mounting, or power setup
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Specifications

Rack-mount ATC 4-way grounded-plane 850W amplifier · 850W total

Drivers

Configuration 3-way active
High-frequency (tweeter) 34mm soft dome tweeter
Midrange 75mm ATC "Super Dome" mid driver
Bass (LF) Twin 15in (375mm) full-spec "SL" bass drivers

Amplification

Amplifier Rack-mount ATC 4-way grounded-plane 850W amplifier
Amplifier class Class A/B
Total amplifier power 850W total
Bass output Bass: 275 + 275W
Mid output Mid: 200W
High output High: 100W
Crossover filters Even Order Critically Damped

Acoustic Performance

Amplitude linearity (±2dB) ±2dB, 50Hz-12kHz
Cut-off frequencies (-6dB), free-standing 25Hz-20kHz (free-standing)
Cut-off frequencies (-6dB), soffit-mounted 20Hz-20kHz (soffit-mounted)
Max continuous SPL (1 metre) 121dB @ 1m
Crossover frequencies 380Hz and 3.5kHz
Horizontal dispersion ±80° (coherent)
Vertical dispersion ±10° (coherent)

Inputs

Input connector Male XLR (balanced)
Input sensitivity 2V
Input impedance Balanced > 10kΩ

Protection & Indicators

Overload protection Active FET momentary gain reduction plus thermal tweeter protection
Front panel indicators Power On indicator, Gain Reduction (clip) warning

Physical & Warranty

Dimensions (HxWxD) 884 x 925 x 460mm (34.8 x 36.4 x 18.7in)
Weight 140kg (308lbs) per datasheet; atc.audio product page and some retailers list 87kg (191.4lbs)
Warranty 6-year warranty

Fit and constraints

Professional main-monitor duty in medium-to-lar… · 850W total

Intended use

Use Professional main-monitor duty in medium-to-large control rooms and film/post re-recording stages that need very high, low-distortion SPL (121dB at 1m) and full-range extension (25Hz-20kHz free-standing, 20Hz soffit-mounted). Suits rooms that can accommodate a ~925mm-wide cabinet and dedicate a rack space to the external ATC amplifier pack.
Not for Home, project, or near-field mixing setups, and anyone without a large, acoustically treated room. The cabinet is roughly 884 x 925 x 460mm and very heavy (140kg per datasheet, or 87kg per ATC's web listing), needs soffit or heavy stand mounting, and requires an external rack-mount amplifier plus a balanced XLR feed at 2V sensitivity.

Constraints

Power850W total
ControlsWeight is a genuine source conflict: ATC's printed A4 datasheet states 140kg (308lbs) w...

To use it

Required appropriate audio and data cables, compatible monitoring, mounting, or power setup

Questions

3 to ask before buying

Which connections, drivers, operating systems, and sample rates are supported by this exact revision?

Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.

What cables, mounts, power supplies, or licenses are included?

Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.

Is the current retailer listing new stock, demo stock, open box, or special order?

Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.

Description

Product details

The ATC SCM300ASL Pro is a large-format, three-way active studio monitor from ATC (Acoustic Transducer Company / Loudspeaker Technology Ltd). It uses a 34mm soft dome tweeter, ATC's 75mm "Super Dome" midrange, and twin 15in (375mm) "SL" bass drivers, driven by a dedicated rack-mount ATC four-way grounded-plane 850W amplifier. It is intended as a main monitor for medium-to-large control rooms and film re-recording stages, with a max continuous SPL of 121dB at 1 metre and crossover points at 380Hz and 3.5kHz. This listing is for a single cabinet with its amplifier pack.

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