ZK-3002 TPA3255 Stereo / Mono Power Amplifier Board

Build a stereo amplifier or a dedicated mono audio project with the ZK-3002 power amplifier board. Its TPA3255 chip supports stereo BTL and mono PBTL configurations, with adjustable gain and fan cooling for a custom DIY installation.

Specifications

• Model: ZK-3002.
• Amplifier chip: TPA3255.
• Operating supply: DC 18–50V; recommended DC 36–48V, 10A or higher.
• Stereo BTL speaker compatibility: 3–8Ω, 50–300W.
• Mono PBTL speaker compatibility: 2–8Ω, 100–600W.
• Gain adjustment: 26–36dB in 10 steps.
• Cooling: temperature-controlled fan with an option for continuous running.
• Listed dimensions: 125 × 65 × 38mm.

Supplier-listed maximum output

• Stereo BTL at 50V: 300W per channel at 4Ω, or 160W per channel at 8Ω.
• Mono PBTL at 50V: 600W at 2Ω, 300W at 4Ω, or 160W at 8Ω.

Actual output depends on power supply capacity, speaker load, cooling and audio input. These figures are supplier-listed maxima, not guaranteed continuous output ratings.

Included

One digital amplifier board and one set of shell accessories.

Installation requirements

Use a compatible DC power supply within the operating range. Listed protections include input undervoltage, overheating, overcurrent and short circuit. There is no input reverse-polarity protection: check positive and negative connections before powering on. Disconnect power before changing operating mode, and follow the model-specific manufacturer wiring instructions for BTL or PBTL configuration. Do not connect outputs together except as explicitly directed by those instructions. This is a DIY component, not a complete speaker system.