28/09/2021
HiFi Amplifier
Available for pre-order only
Description:
Tpa3255 Bluetooth high power digital power amplifier (300W + 300W)
Product Description:
Tpa3255 is a high-performance class D power amplifier chip. It has class D efficiency and can bring real high-end sound quality. The device has advanced integrated feedback design and proprietary high-speed gate driver error correction function (PUREPATH) ™ Ultra high definition). This technology enables the device to maintain ultra-low distortion in the whole audio frequency band and show 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 (uncut power) / 8R loads. It has a 2 VRMs analog input interface and supports high-performance DAC (such as pcm5242 of Ti) Seamless connection. In addition to excellent audio performance, the tpa3255 also has the advantages of high power efficiency and ultra-low power level idle loss (less than 2.5W). This can be achieved by 85mr MOSFET and optimized gate driver scheme. This scheme can significantly reduce idle loss compared with the traditional discrete implementation scheme.
Product specification:
The machine is developed and produced according to standard products. All parts are original and genuine. It is matched with qc3003 Bluetooth 5.0 chip to realize wireless music playback of 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 good heat dissipation
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The original tpa3255 chip is adopted
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Built in high-power hifi special high-efficiency switching power supply, direct plug 220V
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The resistor adopts high-precision chip resistor to ensure good signal-to-noise ratio of the whole machine.
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Special audio inductance is adopted to ensure crisp and powerful sound.
Basic performance parameters:
Working mode: Class D
Working voltage: AC 88-264v (International voltage can be used)
Static current: 60mA
Work efficiency: > 90%
Output power:
315w / 4 Ω, distortion 10%
185w / 8 Ω, distortion 10%
260W / 4 Ω, distortion 1%
150W / 8 Ω, distortion 1%
Frequency response: 20Hz to 20KHz
Dynamic range: > 100 dB
Signal to noise ratio:
(SNR) > 111dB
Overall size: 183 * 52 * 189
MM
Machine weight: 1.45kg. Express fee is charged by 2kg with packaging
This machine also has 600W mono / subwoofer version, which can be purchased at:
High ---- treble adjustment
Mid ----- midrange adjustment
Low ---- bass adjustment
Volume --- total volume adjustment
On / off ---- power switch
Input --- RCA Audio Input
Output --- audio output, connected to speaker terminal
AC 230V --- power cord plug, compatible with AC 90-240v
Internal real materials, all imported filter capacitors, German Red Wima, ne5532 operational amplifier, sealed high-precision potentiometer, Japan Omron relay, etc
True Bluetooth 5.0 reception + independent audio decoder, the sound quality is lower than the direct output distortion of the mobile phone, and the level of detail is better
HiFi front stage amplifier circuit, high, medium and low three-stage equalization regulation
High speed, high efficiency and low ripple special power supply, stable and capable, providing sufficient power for output