Adjusting the crossover, Setting the bass boost

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6.Turn the volume back down slightly.

7.Slowly increase the gain control (clockwise). Stop when you hear a slight audio distortion.

When the gain is properly set, you should achieve maximum undistorted output with the volume turned up all the way, not half way.

If an oscilloscope is available, monitor the output of the amplifier with the scope, watching for clipping of the waveform. Set the gain so that only minor clipping occurs.

Adjusting the crossover

The APX2180, APX4360 and DPX2250 amplifiers feature fully-adjustable crossovers. The DPX1800 and DPX11500 do not have a way to disable the low-pass 24dB slope crossover.

1.On the APX2180, APX4360, and DPX2250, use the X-Over mode switch to select either LP (low pass) or HP (high pass) or OFF for full range.

2.Using the Frequency (Hz) selection control, select the frequency.

Setting the bass boost

1.Initially set the bass boost control to the OFF position.

2.Listen to a variety of music styles (for example, rock, rap, etc.) and switch the bass boost control on until you notice an increase in low bass response.

Note:

Using the bass boost requires the amplifier to produce a great deal of additional power. Use bass boost sparingly.

CAUTION

If you hear a pop caused by speaker overexertion, lower the bass boost to prevent damage to the speaker.

Final system checks

1.Start the engine and turn on the source unit.

2.After a two-second delay, slowly increase the volume control and listen to the audio.

If you hear any noise, static, distortion or no sound at all, check the connections and refer to Troubleshooting. Depending on your system, the volume may become quite loud even at moderate volume control settings. Until you get an “audio feel” for the system’s power, use care when adjusting the controls.

3.Turn the balance controls to their extreme positions and listen to the results.

Audio output should match control settings (audio from the left speaker when balance is left).

20	APX/DPX Amplifiers

APX-DPXOwnersManual.pmd

2006-03-14, 21:47

APX4360, DPX2250, APX2180, DPX11500, DPX1800 specifications

Clarion's series of amplifiers, including the APX4360, DPX2250, DPX1800, DPX11500, and APX2180, showcases cutting-edge audio technology tailored for car enthusiasts seeking high-quality sound performance. Each model is engineered to provide a powerful audio experience, whether for casual listeners or serious audiophiles.

The Clarion APX4360 is a high-performance 4-channel amplifier renowned for its robust output and versatility. It delivers an impressive power rating of 60 watts RMS per channel at 4 ohms, making it suitable for driving speakers across a wide range of configurations. This model features a variable crossover system, allowing users to customize their sound by tailoring the frequency response. Its compact design enables easy installation in various vehicle types while maintaining high-quality audio reproduction.

The DPX2250 model is a 2-channel amplifier that stands out for its reliability and efficiency. With a power output of 75 watts RMS per channel at 4 ohms, it enables superior sound clarity and dynamics. The DPX2250 incorporates advanced protection circuitry, ensuring that it remains safe from overheating and short circuits. Its adjustable bass boost feature empowers users to enhance lower frequencies, creating a fuller sound experience.

For those seeking a more compact solution, the DPX1800 is a slim profile 2-channel amplifier. It offers 90 watts RMS per channel at 2 ohms, great for those with limited installation space. One of its key features is its built-in electronic crossover, which streamlines the setup process by allowing for seamless integration into existing audio systems. The DPX1800’s lightweight construction does not compromise its output, delivering an impressive punch for its size.

The DPX11500 is a monoblock amplifier designed for dedicated subwoofer applications. With a power output of 1,100 watts RMS, it is perfect for users looking to add serious low-end power to their system. It features a variable low-pass filter and remote bass level control, allowing for fine-tuning according to user preferences. Its durable construction ensures reliability in high-demand audio environments.

Lastly, the APX2180 is another 2-channel amplifier known for its incredible versatility and value. It produces 90 watts RMS per channel at 4 ohms and includes a built-in crossover for both high-pass and low-pass operation. Additionally, the APX2180 features a sleek design that’s easy to install, making it a great option for enhancing any car audio system.

Overall, Clarion amplifiers deliver exceptional sound quality, reliability, and flexibility across different models, making them an excellent choice for anyone looking to elevate their in-car audio experience.