Features • Compact High Power Mono Subwoofer Amplifier • High Current Design • 1 x 300 Watts @ 2 Ohms, 1x175 watts @ 4 Ohm • 12 dB/Octave Linkwitz-Riley Alignment Crossover • GTO™ Signal Sense (Great Turn On) • 2 RCA Inputs - switchable for Low and High Level signals • Optional wired ACR-1 Remote Control for Output Level • All-weather rated - IPX6 rated! • Cage-free op-amps INPUT 2 INPUT 1 REMOTE ACX-300.
ACX-300.1 2 Important Safety Instructions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. Do not install near any heat sources such as mufflers, silencers, exhaust pipes, or other apparatus (including amplifiers) that produce heat.
Connection Features OUTPUT +12V GND REM 1 2 3 1. Speaker Output – Connect these wires to your subwoofer using the included water resistant harness. Speaker wire may then be crimped or soldered onto the bare leads. Use a decent sized wire gauge as this baby is powerful! 2. Power Input Terminal +12V & Ground – Connect these wires to the +12V and Negative binding posts of the vehicle battery via one of two included harness options.
ACX-300.1 4 INPUT 2 INPUT 1 REMOTE 4 5 6 7 8 9 10 11 12 13 6. Protection LED – This LED will shine if there is a problem being sensed by the unit. See troubleshooting section for best practice to determine the cause of the issue. 7. Gain Control - This controls allows you to adjust the overall output level, with counterclockwise decreasing the level and clockwise increasing. Adjust this knob to the point where the Maximized light shines briefly. This will be your optimal gain setting. 14 15 8.
Control Panel Features 9. Gain Maximized LED - This LED indicates when the ACX-300.1 amplifier gain has been maximized for optimum performance. 10. AccuBASS® - This switch enables the renowned AccuBASS® bass enhancement to work it’s magic on the lower bass of speaker outputs. 11. AccuBASS® Threshold – Sets the level at which AccuBASS® will begin to work. 14. RCA Inputs – This is where you connect your source signal to. If using low level signals, make sure your Input Level setting switch is set to Low.
Quick Start Here are a few general steps to get your ACX-300.1 amplifier up and running: 1. Undo the +12V and Ground connections to the battery before making any connections to the amplifier. 2. Pick a mounting location that will provide access to the controls and connections, provide plenty of good ventilation, and also protect the amplifier from heat, moisture, and dirt. 3. The ACX-300.1 amplifier needs to be securely mounted using the four mounting holes located in each corner. 4.
ACX-300.1 7 Power Connections In this example, the head unit has a +12V trigger output that is connected to the ACX-300.1 remote input terminal. When the head unit is turned on, it will turn on the ACX-300.1amplifier. Speaker-level output OUTPUT REMOTE INPUT 2 To battery Alternatively, the GTO™ Signal Sense feature can be used to gently turn on the ACX-300.1 amplifier when an audio input signal is detected. (The connection to the ACX-300.
System #1: Using Speaker-Level Inputs ACR-1 Subwoofer Speaker-level output OUTPUT REMOTE To battery INPUT 2 INPUT 1 +12V +12V GND GND REM 12V Trigger Source Unit Speaker Level Wires 8
Cover Plate Removal The cover plate must be removed to gain access to the controls, and then sealed again to protect the controls against moisture and debris. OUTPUT Removal Procedure 1. Locate the top six hex screws that hold down the sealed top cover. 2. Use a 2.5mm hex wrench to remove the six screws. +12V GND 3. REM 4. Gently lift cover off. It’s a very tight fit there, so you may need to use some gentle force.
ACX-300.1 Specifications All specifications are measured at 14.4 VDC (standard automotive voltage). As technology advances, AudioControl reserves the right to continuously change our specifications, like our Pacific Northwest weather, although we are working on changing that as well. The ACX-300.1 Amplifier Power Output (RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . 1x175 Watts @ 4 Ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
