2020 Breeze Audio New HiFi 2.0 Class D Full Digital Amplifier TPA3255 High Power 300W*2/4ohm Bluetooth@5.0 Black Optional - AliExpress.io

Product Description

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2020 Breeze Audio New HiFi 2.0 Class D Full Digital Audio Amplifier TPA-3255A High Power 300W*2/4ohm Bluetooth@5.0 Black Optinal

product manual:

TPA3255 is a high-performance class D power amplifier chip, which has class D efficiency and can bring real high-end sound quality circuits. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction function (PurePath™ Ultra HD). This technology allows the device to maintain ultra-low distortion throughout the audio frequency band while exhibiting perfect sound quality. The device works in AD mode. When the THD is 10%, it can drive up to 2 315W/4R loads and 2 150W (unclipped power)/8R loads, and has a 2 VRMS analog input interface that supports high-performance DAC (For example, TI's PCM5242) seamless connection. In addition to excellent audio performance, TPA3255 also has two major advantages: high power efficiency and ultra-low power level idle loss (less than 2.5W). This can be achieved with an 85mR MOSFET and an optimized gate driver scheme. Compared with the traditional discrete implementation, this solution can significantly reduce idle loss.

Specifications:

This machine is developed and produced in accordance with standard products. All parts and components are original authentic products. It is equipped with QC3003 Bluetooth 5.0 chip to realize wireless music playback with various portable products. The machine is directly powered by 220V power supply, which is convenient to use. The all-aluminum chassis has fine workmanship and ensures good heat dissipation.

- Using original TPA3255 chip

- Built-in high-power HIFI dedicated high-efficiency switching power supply, direct plug-in 220V

- The resistors are selected high-precision chip resistors to ensure a good signal-to-noise ratio of the whole machine.

- Use special inductance for audio to ensure clear and powerful sound.

Basic performance parameters:

Working method: Class D

Working voltage: AC 88-264V (all international voltages can be used)

Quiescent current: 60mA

Work efficiency:.>90%

Output Power:

315W/4Ω, distortion 10%

185W/8Ω, distortion 10%

260W/4Ω, distortion 1%

150W/8Ω, distortion 1%

Frequency response: 20Hz to 20KHz

Dynamic range: >100 dB

Signal to noise ratio: (SNR)> 111dB

Machine size: 183*52*189MM

Weight of the whole machine: 1.45KG

Pros & Cons

Pros

Compact lightweight 900mm ultra-telephoto for wildlife and sports photography.
Multi-coated optics with 8-blade diaphragm for better contrast and bokeh.
T2 adapter included for broad DSLR/mirrorless compatibility.
Fixed f/8 aperture faster than many 900mm lenses.

Cons

Manual focus only, no autofocus for fast action.
f/8 aperture limits low-light performance.
Heavy 601-700g for handheld extended use.
Mirror lens design may produce characteristic donut bokeh.

Common Questions

What is the focal length and aperture of the 900mm mirror lens?

900mm f/8 fixed aperture manual telephoto lens, full frame compatible with T2 adapter.

What camera brands and mounts does it support with adapters?

Includes T2 adapter for Canon, Nikon, Pentax, Olympus, Sony, Fuji DSLR/mirrorless; APS-C, full frame, M4/3.

What is the weight and filter size for portability and usage?

601g-700g weight, 105mm UV filter thread; 8 diaphragm blades for smooth bokeh.

Is it suitable for wildlife and sports photography?

Yes, ultra-telephoto design ideal for sports, wildlife; multi-coated to reduce flare.

What package and origin for shipping details?

Ships from Mainland China with lens, 2x teleconverter, T2 adapter; CE certified.