APX280M manual.qxd 3/12/2004 12:55 PM Page 10

APX280M Power System Amplifier

Problem

Distorted audio.

Solution

Gain is not set properly, or damaged speaker cones. Review Setting Gain; inspect each speaker cone for signs of damage (i.e. frozen cone, burning smell, etc.)

Problem

Audio lacks punch.

Solution

Speakers wired incorrectly, which causes cancellation of bass frequencies. Check polarity of wires from amplifier to each speaker as defined by the system design.

Problem

Amplifier fuse keeps blowing.

Solution

Incorrect wiring or short circuit. Review Installation and check all wiring connections.

Problem

Whining or ticking noise in the audio with engine on.

Solution

Amplifier is picking up alternator noise or radiated noise. Turn down input gain; move audio cables away from power wires. Check power and ground connections on amplifier; install an in-line noise filter on source unit's power wire; check alternator and/or voltage regulator; test for weak battery or add water to battery.

PRODUCT SPECS

Frequency Response

20Hz ~ 20kHz

Signal Noise Ratio

>100db

THD

.05% all channels driven

Input Sensitivity Low Level

250mV ~ 2.5 V

Input Sensitivity Speaker Level

500mV ~ 5V

Max. Power Output

320W (160Wx 2)

Cont. Power Output

160W (80w x 2) @ .08% THD

2-Ohm Stereo Output

125W x 2 @ .05% THD

Bridged Power

300W x 1 @ .05% THD

Dimensions

2-1/8"H x 8-1/4"W x 9" L

Current Consumption at output

 

@ max power

28A @ 382 Watts

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Clarion APX280M manual Product Specs, Thd

APX280M specifications

The Clarion APX280M is an advanced marine amplifier designed for boating enthusiasts seeking high-quality audio performance on the water. Engineered to withstand the harsh marine environment, the APX280M combines cutting-edge technology with robust durability to deliver an exceptional sound experience.

One of the key features of the Clarion APX280M is its power output. With a peak power rating of 280 watts, the amplifier provides ample power to drive a range of marine speakers, ensuring that music can be enjoyed loud and clear, even in windy or noisy conditions. The amplifier is designed to deliver continuous power output of 70 watts per channel at 4 ohms, making it suitable for various setups and configurations.

The APX280M employs a Class D amplification technology, which enhances its efficiency and reduces heat generation. This technology not only maximizes the power output but also minimizes the draw on the boat’s battery, allowing users to enjoy prolonged use without worrying about power consumption. This makes the APX280M an energy-efficient choice for marine audio systems.

The amplifier features a compact, marine-grade aluminum chassis that is corrosion-resistant and designed to endure moisture and salt exposure. This rugged construction ensures longevity and reliability, making it an ideal choice for marine applications. It also includes a conformal-coated PCB that offers additional protection against the elements.

Another notable feature of the APX280M is its built-in crossover functions. This includes high-pass and low-pass filters, allowing users to customize their sound experience and optimize performance based on their speaker setup. The variable gain control allows fine-tuning of the output to match the specific needs of the audio system.

For users who seek simplicity, the amplifier is equipped with straightforward terminals for power, ground, and speaker connections, making installation easy and hassle-free. The low-noise design further enhances the listening experience by minimizing unwanted interference and distortion.

In summary, the Clarion APX280M is a powerful marine amplifier designed with features that address the demands of marine audio systems. Its combination of Class D technology, durability, and customization options make it an excellent choice for any boat owner looking to elevate their audio experience on the water. With the APX280M, users can enjoy quality sound while navigating the waves, making every outing more enjoyable.