Data Sheet
TECHNICAL DATA SHEET
SCS70 Pro
12” Active Subwoofer
ENGINEERS
PRO SERIES
Overview
High performance sealed box design using 12”/314mm ATC proprietary sub driver.
Ideal partner to the
ATC SCM12 , SCM20, SCM25A Pro, SCM45A Pro, SCM50A Pro.
Suitable for use in stereo, surround and immersive audio applications.
On-board
300W convention cooled discrete MOSFET class A/B amp.
2 x balanced
XLR inputs
2 x balanced
XLR outputs (un-filtered/processed).
User adjustable gain, low pass frequency, polarity and phase settings.
Remote sub muting via latching footswitch*
In-Wall variant with remote amplifier also available – the
SCS70iW Pro.
* Footswitch supplied separately, latching type, ¼”/6.35mm jack connection.
Acoustic specifications
Drive Unit – Bass:
1 x SS75-314SC 8Ω.Ω
Low Frequency Cut-off: 22Hz (-6dB, half space, low pass filter set at 80Hz).
Low Pass Filters: 50Hz, 65Hz, 80Hz, 320Hz. (-6dB, 4th order Linkwitz Riley).
MaxSPL: 110dB continuous, 116dB peak (
IEC Weighted Pink Noise, 1m, half space, low pass filter @ 80Hz).
Sensitivity: +4dBu ref
88dBC (single channel driven, Gain +6dB, Level 0dB, pink noise, low pass filter @ 80Hz).
Electronic specifications
Amplifier type: Grounded Source MOSFET based Class A-B, convection cooled.
Output Power:
300W in to 8Ω.
THD+N: <
0.003%/-90dB, at 10 0 H z, 300W into 8Ω over 90kHz bandwidth.
Input CMRR:
90dB at 200Hz.
Balanced Inputs: 2 x Rear Panel Mounted Female
XLR, pin 2 hot.
Input Impedance:
20kΩ (differential).
Balanced Outputs: 2 x Rear Panel Mounted Male
XLR, pin 2 hot.
Output Impedance:
10 0 Ω (differential).
Frequency Response: <
2Hz (-3dB) – 320Hz (-6dB, set by panel-controlled LP filter).
Low Pass Filters: 4th Order Linkwitz Riley
Gain Control: 0, +6dB, +10dB.
Level Control: 0dB -11dB in 1dB steps. Total range 21dB with use of Gain switch.
Phase Control: 0-180° ref. Input.
Polarity Control: In-phase/Out-of-phase ref. Input.
Limiter:
ATC Active FET Momentary Gain Reduction, active limiter indicated via front panel LED.
Sensitivity: 6dBu / 1.55Vrms for full power (single channel driven, Gain 0dB, Level 0dB)
Mains Input: 220-230V or 115V – Factory set. Please observe panel markings and labels!
Power Consumption: Idle 8W/14VA . 1/ 8 t h Powe r 170W/230VA . Full Power 500W/600VA.
Additional: Mute via ¼”/ 6.35mm Jack socket, controlled via latching footswitch (supplied seperately)
Physical specifications
See following page.