 
            | Quantity | 3+ units | 10+ units | 30+ units | 50+ units | More | 
|---|---|---|---|---|---|
| Price /Unit | $13.97 | $13.69 | $13.26 | $12.69 | Contact US | 
 Gravity Waves BLACK DOMAIN Tube Amp Attenuator Dummy Load Box for Tube Amplifiers ≤200W
                                                $143.04
                        Gravity Waves BLACK DOMAIN Tube Amp Attenuator Dummy Load Box for Tube Amplifiers ≤200W
                                                $143.04
                                             Gravity Waves Tube Amp Bunker Tube Guitar Amp Attenuator Load Box and Cab Sim Combo (Silver)
                                                $414.91
                        Gravity Waves Tube Amp Bunker Tube Guitar Amp Attenuator Load Box and Cab Sim Combo (Silver)
                                                $414.91
                                             20W Gravity Waves Bluespace White All-Tube Guitar Amplifier Guitar Tube Amp Combo with Stand & Pedal
                                                $1,490.66
                        20W Gravity Waves Bluespace White All-Tube Guitar Amplifier Guitar Tube Amp Combo with Stand & Pedal
                                                $1,490.66
                                            
	503X Power Amplifier Main Board 5inch Tritone Subwoofer Card Amp for Car DIY
	
	Features:     
	- Breakpoint memory play and digital display function;
	- Cara OK function, you can use the microphone to sing;
	- Can independently adjust the tenor, bass and main volume;
	- Can read MP3 WAV song , TF card and U disk;
	- DC 12V, 24V and AC 110-220V three kinds of voltage can be used;
	- With AUX input, access to computers, mobile phones, DVD or CD and other audio;
	- Digital power amplifier, rated power 30W, you can push 5-8 Inch 4 Euro 70 magnetic horn
	
	Speaker connection:
	The red and black cable on amplifier board can connect to 4Ohm 70 magnetic speaker or audio (red to +; black to  -)
	
	Power supply connection:
	- DCIN 12V/24V . interface can access the DC 12V or DC 24V, the current requirements is 3A or more;
	- 110-220V B.AC interface can access AC110V-220V household AC power (can not touch the circuit board after power, so as to avoid electric shock).
	
	Note: DC 12V, DC 24V and AC110V-220V household alternating current can be arbitrarily connected to the line, can not be accessed at the same time.
	
	Specification:  
	- Net weight: about 160 g
	- Mounting holes: width 100* hight 50mm
	- Mounting hole distance: width 70* hight 57mm
	- Overall size: width 118* hight 67* depth 67mm
	
	Package included:
	- 1 x Amplifier Board