MA4-D 4ch DSP Power Amplifier

MA4-D 4ch DSP Power Amplifier


Introducing the MA4-D 4-Channel DSP Power Amplifier a game-changer in audio amplification. Designed with cutting-edge technology and meticulous engineering, the MA4-D amplifier offers exceptional power, precision, and versatility. Elevate your audio experience to new heights with the MA4-D amplifier.

Local pickup or $11 flat rate shipping within Australia

Key Features

  • 4-Channel Power Amplification: The MA4-D amplifier delivers high-quality power to each of its four channels, ensuring optimal performance for your audio system.
  • Digital Signal Processing (DSP): Integrated DSP provides advanced signal manipulation and fine-tuning capabilities, allowing you to customize and optimize the audio output according to your preferences.
  • Powerful Performance: With its robust power delivery and high efficiency, the MA4-D amplifier provides ample headroom and dynamic range, ensuring crystal-clear sound reproduction, even in demanding audio setups.
  • Versatile Connectivity: The amplifier features a range of inputs and outputs, including XLR and RCA connectors, enabling seamless integration with various audio sources and components.
  • Sleek and Durable Design: The MA4-D amplifier boasts a sleek and compact design, making it easy to fit into your audio setup. Its sturdy construction ensures long-lasting durability and reliable performance.


Audio Performance: Experience powerful, immersive sound with the MA4-D amplifier, as it brings out the best in your audio system, delivering exceptional clarity, detail, and depth.

  1. Customized Sound Optimization: The integrated DSP allows you to fine-tune the audio output, tailoring it to suit your specific preferences and room acoustics, resulting in a personalized and optimized listening experience.
  2. Flexible Audio Setup: With its four-channel configuration and versatile connectivity options, the MA4-D amplifier adapts to various audio setups, whether it’s stereo, multi-room, or surround sound systems.
  3. Reliable Power and Efficiency: The MA4-D amplifier’s robust power delivery and high efficiency ensure stable performance and energy-efficient operation, minimizing heat generation and power consumption.
  4. Easy Integration: Designed with convenience in mind, the MA4-D amplifier is easy to install and integrate into your existing audio system, providing immediate enhancements to your audio setup.

Unleash the full potential of your audio system with the MA4-D 4-Channel DSP Power Amplifier from Klapp Audio. Experience superior sound quality, customizable audio optimization, and effortless power delivery. Visit Klapp Audio now and take your audio experience to new heights with the MA4-D amplifier!

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At Len Wallis Audio, whether you’re purchasing in store, over the phone or online through our ecommerce store, we want you to be completely satisfied with your purchase.

Our Refund, Return and Repairs Policy is here to clarify any concerns or questions you might have prior to you making a purchase from us. This way you can be sure of our policy on refunds, returns and repairs and your rights under the Australian Consumer Law.

We also recommend you immediately inspect any goods that you receive from us to ensure you are completely satisfied with the goods, including that the goods are of acceptable quality, and match the description we have provided to you.

If you have any questions about this policy, please contact us at or 02 9427 6755

We require a receipt or proof of purchase.

  • Please do not send your purchase back to the original manufacturer.
  • There are certain situations where only partial refunds are granted (if applicable). For example:
    • Any item not in its original condition, is damaged or missing parts for reasons not due to our error
    • Any item that is returned for reason of change of mind more than 14 days after delivery or purchase from the store.

Consumer Guarantees and Your Rights under the Australian Consumer Law

Refer to our page for more information.

Goods Damaged in Transit.

If any goods arrive damaged, please contact us as soon as possible. Len Wallis Audio will arrange to have the damaged goods returned and either arrange for a replacement of the goods or refund the price to you. Damaged goods must be returned in the condition received by you with all original packaging, accessories and/or manuals.


Refunds will be normally be processed within five (5) days.

Delivery Charges

Where Len Wallis Audio considers the goods to have breached a consumer guarantee, any shipping costs to return the goods to Len Wallis Audio will be at our cost.

Returns and Repairs.

You may visit Len Wallis Audio and a staff member will assist you with any return or repair. This may include inspecting the goods, arranging for the goods to be repaired, or providing you with a replacement.

Goods must be returned within a reasonable time. 

If any goods cannot be easily returned to us due to their size, the fault or because they have been affixed or installed in your premises, please contact us and we will arrange an inspection to assess the goods.

Goods returned for repair will be assessed and/or repaired within a reasonable time. You may be provided with an indicative repair time, which time may vary due to reasons beyond ours or the repairer’s reasonable control, such as part availability and incorrect fault description.

You may be required to pay labour, assessment and/or freight fees, such as where goods are assessed to have been damaged by misuse or accident, or where your rights under the Australian Consumer Law or any manufacturer’s warranty do not apply. We may provide you with an indicative fee, which may vary due to reasons beyond our control.

If any goods that you return are capable of retaining user generated data such as files stored on a hard drive, and songs stored on a portable media player, the replacement or repair of the goods may result in loss of the data. In these circumstances, we recommend you back up data to prevent data loss, and remove sensitive or confidential data, as a party assessing and/or repairing your goods may be required to view data in the course of carrying out the assessment. We will not be responsible for any data loss.

In some circumstances, goods presented for repair may be replaced by refurbished goods of the same type rather than being repaired. Refurbished parts may be used to repair the goods.

Contact Us

Where you have any questions or concerns relating to your Order, please immediately contact us

We understand that sometimes you may simply change your mind about a purchase or have made a wrong selection. In these situations, you have 14 days in which to return your item for a refund, exchange or store credit. If more than 14 days has passed since your purchase we can’t offer you a refund, exchange or store credit.

To be eligible for a return, refund or store credit your item must be in the same condition that you received it. Which is to say, it must be in the original unopened packaging, and in ‘brand new’ saleable condition.

Please note that current Australian Consumer Law does not require us to offer a ‘Change of Mind’ refund. Rather Len Wallis Audio offers 14 day ‘Change of Mind Policy’ in good faith. For more information on consumer rights and guarantees, please visit the Australian Competition and Consumer Commission web site.