Modus 5-Channel Class D Amplifier - PTA-5700M
Modus PTA-5700M 5-Channel Class D Amplifier
The PTA-5700M is a compact 5-channel amplifier designed to deliver powerful, controlled sound for a complete car audio system. With 85W RMS x 4 plus 330W RMS x 1 at 4 ohms, this Class D amplifier is built to power your front and rear speakers along with a subwoofer from one efficient unit. For systems that demand more output, it can provide 150W RMS x 4 plus 550W RMS x 1 at 2 ohms, or 300W RMS x 2 bridged at 4 ohms plus 550W RMS x 1 at 2 ohms. Its compact heat sink design helps it fit into tighter install locations, while ACTEQ microprocessor controlled protection and Deutsch style connectors support reliable performance and cleaner installation. Whether you are upgrading a factory system or building a custom setup, the PTA-5700M offers the flexibility and power needed for a refined listening experience.
Features
- 85W RMS x 4 + 330W RMS x 1 @ 4Ω
- 150W RMS x 4 + 550W RMS x 1 @ 2Ω
- 300W RMS x 2 @ 4Ω Bridged + 550W RMS x 1 @ 2Ω
- Compact Heat Sink Design
- ACTEQ Microprocessor Controlled Protection
- Deutsch Style Connectors
- Analog Controls Under Sealed Cover Panel
General
Warranty Information
Approximate Weight
Approximate Dimensions
Guides
Frequently Asked Questions
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This amplifier delivers 85 watts RMS per channel for four channels plus 330 watts RMS for the fifth channel at 4 ohms. At 2 ohms, it provides 150 watts RMS for four channels and 550 watts RMS for the fifth channel. When bridged at 4 ohms, it can output 300 watts RMS for two channels plus 550 watts RMS for the fifth channel, providing versatile power options for various setups.
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The amplifier uses a Class D design, which is known for high efficiency and compact size. This design minimizes heat generation and power loss, making it suitable for tight installation spaces while delivering powerful and clear sound.
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Yes, it features ACTEQ microprocessor controlled protection to ensure reliable performance and prevent damage from conditions like overheating, short circuits, or overloading. This enhances safety and durability during use.
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The amplifier includes variable bass boost (0 to 12 dB for channel 5) and analog controls placed under a sealed cover panel for protection. It also has input gain control, low pass, and high pass filters adjustable between 50 Hz to 500 Hz, allowing precise sound tuning.
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Deutsch style connectors are used, which are known for secure, corrosion-resistant connections. These connectors simplify installation and improve durability in automotive environments.

