Datasheet

Technical
Data Sheet
SCM20ASL Pro (V2):
High Performance
2-way Active
Loudspeaker
Loudspeaker Technology Ltd
Gypsy Lane
Aston Down
Stroud
Glos
GL6 8HR
England
Tel: [phone]
Fax: [phone]
email: [e-mail]
Key Features
l Compact very high performance 2-way studio monitor
l Ideally suited to:
- critical near-field listening applications in all control rooms
- LCR surround monitoring in small-to-medium control rooms
- surround channels in medium-to-large contol rooms
l Proprietary ATC 150mm/6” Super Linear Mid/Bass Driver
l Proprietary ATC 25mm/1” Super Tweeter
l Discrete MOSFET class A/B bi-amp pack with 200W/50W
continuous power output
Specifications
1. Acoustic
l Drive unit - Low Frequency (LF) 6.5”/150mm Super Linear with 75mm/3" voice coil (SB75-150SL 8 Ohm)
l Drive unit - High Frequency (HF) 1”/25mm dual suspension Soft Dome (SH25-76S 6 Ohm)
l Amplitude linearity 80Hz - 20kHz (+/-2dB)
l Cut-off frequencies 55Hz - 25kHz (-6dB freestanding)
l Horizontal dispersion +/-80° coherent
l Vertical dispersion +/-10° coherent
l Maximum continuous SPL 108dB (per pair @ 1m)
l Crossover frequency 2.1kHz
2. Electronic
l Audio input Rear panel mounted female xlr (pin 2 +ve)
l Input sensitivity 1V/2V RMS or 2.2/8.2dBu via switch (ref. bass full output)
l Input sensitivity trim 0dB to -6dB (via rear panel accessed trimmer)
l Total input sensitivity range 1V/+2.2dBu to 4V/+14.2dBu
l Input impedance 10kΩ per leg
l LF amp max output power 200W continuous (1% THD)
l HF amp max output power 50W continuous (1% THD)
l THD LF amp 0.0006%/-104.4dB (100Hz, 1dB below rated power)
l THD HF amp 0.0022%/-93.2dB (10kHz, 1dB below rated power)
l Crossover filters 2nd order/ 12dB/oct critically damped with phase compensation
l HF upper -3dB point 230kHz
l S+N/N ratio - LF 112dBA (Max. gain, ref. 40V, IEC ‘A’)
l S+N/N ratio - HF 109dBA (Max. gain, ref. 20V, IEC ‘A’)
l Low frequency shelf cut/boost 80Hz, -2dB to +3dB in 1dB steps (via rear panel rotary switch)
l Overload protection Active FET momentary gain reduction (inc. front panel mounted ‘limit’ LED)
Amplifier thermal trip circuit. DC offset protection.
l Mains power requirements 115/230V, 50/60Hz (internally selectable by technician). 100v 50/60Hz factory set.
l Mains power consumption 381Watts/483VA Max
l Accessories K&M 24120 Wall Mount (cabinet requires modification to accept ‘top-hat’ mount)
l Weight 28kg/61.6lbs (per cabinet)
®
ATC reserve the right to change specifications without prior notice. Acoustic Transducer Co. is a trading name and is the registered Trade Mark of Loudspeaker Technology Ltd.