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ATC SCM20ASL Pro有源音箱详细介绍
| SCM20ASL Pro1. Acoustic Drive unit : Low Frequency (LF) 6.5”/150mm Super Linear with 75mm/3″ voice coil (SB75-150SL 8 Ohm) Drive unit : High Frequency (HF) 1”/25mm dual suspension Soft Dome (SH25-76S 6 Ohm) Amplitude linearity : 80Hz – 20kHz (+/-2dB) Cut-off frequencies : 55Hz – 25kHz (-6dB freestanding) Horizontal dispersion : +/-80° coherent Vertical dispersion : +/-10° coherent Maximum continuous : SPL 108dB (per pair @ 1m) Crossover frequency : 2.1kHz . |
2. Electronic
Audio input : Rear panel mounted female XLR (pin 2 +ve)
Input sensitivity : 1V/2V RMS or +2.2/+8.2dBu via switch (ref. bass full output)
Input sensitivity trim : 0dB to -6dB (via rear panel pot)
Total input sensitivity range : 1V/+2.2dBu to 4V/+14.2dBu
Input impedance : 10kΩ per leg
LF amp max output power : 200W continuous (1% THD)
HF amp max output power : 50W continuous (1% THD)
THD LF amp : 0.0006%/-104.4dB (100Hz, 1dB below rated power)
THD HF amp : 0.0022%/-93.2dB (10kHz, 1dB below rated power)
Crossover filters : 2nd order/ 12dB/oct critically damped with phase compensation
HF upper : -3dB point 250kHz
S+N/N ratio : - LF 112dBA (Max. gain, ref. 40V out, IEC ‘A’)
S+N/N ratio : - HF 109dBA (Max. gain, ref. 20V out, IEC ‘A’)
Low frequency shelf cut/boost : 80Hz, -2dB to +3dB in 1dB steps (via rear panel rotary switch)
Overload protection : Active FET momentary gain reduction (inc. front panel mounted ‘limit’ LED)
Amplifier thermal trip circuit
Mains power requirements : 115/230V, 50/60Hz (internally selectable by technician). 100V 50/60Hz factory set.
Max power consumption : 381Watts/483VA
Accessories : K&M 24120 Wall Mount (cabinet requires modification to accept ‘top-hat’ mount)
Weight : 28kg/61.6lbs (per cabinet)
