Model	STD-4004	STD-600	std 8004	STD 900	STD-1000	STD-12004	STD-15004	STD-18004
8Ω Stereo power (W)	4 x 400	4 x 600	4 x 800	4 x 900	4 x 1000	4 x 1200	4 x 1500	4 x 1800
4Ω Stereo power (W)	4 x 600	4 x 900	4 x 1200	4 X 1350	4 x 1500	4 x 2000	4 x 2250	4 x 2700
8Ω bridged Stereo power (W)	2 x 1200	2 x 1800	2 x 2400	2 x 2700	2 x 3000	2 x 3600	2 x 4500	2 x 54000
Channel	4
Output connectors	Speakon Connectors
Frequenty response	20Hz - 30kHz +- 0.5dB
Signal noise ration (dB)	110dB
THD + N (rated power, 40/kHz)%	< 0.1%
Input connectors	Combo XLR type, 3pin
Link connectors	XLR type, 3 pin male
Input impedance	（20Hz-20kHz, balanced)； 20k Ohm Balanced or 10k Ohm Unbalanced
Input gain	Rear panel: 0.775V/1.0V/1.4V
Fan	3 PCS temperature control cooling Fan
Protection	temperature , DC, sub/ultea-sonic, short Circuit, over load, IGM, output
Indicators (per channel)	Protect indicator, Signal indicator, Work indicator
Power requirement	220 - 240V ~ 50 - 60Hz
Airframe	483 x 439 x 88 mm
Transport dimensions	623 x 575 x 143 mm
Weight (net)	24 kg	26 kg	28 kg	29 kg	30 kg	31 kg	33 kg	34 kg
Gross weight	26 kg	28 kg	30 kg	31 kg	32 kg	33 kg	35 kg	36 kg