Nobsound A5 TPA3255 Stereo Amplifier HiFi Audio Class D Digital Power Amplifier with High Pass Filter Compatible with Home Theater Bookshelf Speakers

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. HiFi Sound and Adjustable High Pass Filter: Douk Audio A5 is equipped with TPA3255 chip and has a high pass filter (HPF) adjustable from 30Hz to 200Hz. This refines mid-high frequencies and minimizes low-frequency interference. It works especially well with bookshelf speakers and passive speakers, improving sound clarity and creating a dynamic soundstage. It provides an immersive audio experience for home stereos and theater systems. It is also one of the best options for audio enthusiasts who pursue high sound quality to enjoy the fine nuances of sound. Easily Customizable Plug-and-Play Op-Amps: Douk Audio A5 features a tempered glass access panel for easy Op-Amps replacement. In addition to the standard NE5532 Op-Amps, you can upgrade to dual Op-Amps such as 2134, 2604, 5532, 2068, muse02, etc. This allows users to customize the sound profile to suit their own preferences. You can easily adjust the sound quality without disassembling the amplifier, so even those who are new to audio equipment maintenance can use it with confidence. PFFB Technology and High Performance PCB Design: This digital amplifier features Post-Filter Feedback (PFFB) technology and a 4-layer immersion gold PCB. This reduces distortion and improves frequency response. It also provides improved signal integrity and effective thermal management. As a result, it provides exceptional audio accuracy and delivers the best performance when listening to music and movies. Because it uses high-quality components, it maintains stable sound quality even after long periods of use. Stylish design perfect for your living room or studio: Douk Audio A5 features a compact and modern design. It features a transparent panel and adjustable internal LED lighting, with multiple color variations to choose from. This allows you to create a look that matches the atmosphere of your living room or studio. The sophisticated exterior looks great in any interior, so it can be used not only as an audio device but also as an accent to your space. High output of 300W x 2 and high quality components Equipped with TPA3255 chip and high quality components, Douk Audio A5 achieves a high output of 300W x 2. It boasts an ultra-low distortion rate (THD 0.002%) and is highly compatible with the DAC-Q11. It provides excellent sound quality in a variety of situations, such as watching movies on the weekend, listening to music at night, and relaxing after work. In addition to the standard 32V/5A power adapter, you can also use a 48V/5A adapter for even higher power output. parameter - Brand: Nobsound - Model: A5 - Audio input: Stereo RCA - Audio output: Banana speaker jack/3.5mm AUX - High pass filter adjustment range: 30Hz-200Hz - MAX output efficiency: 300W*2 (4Ω) - Compatible speaker impedance: 4-8Ω - THD+N: 0.002% -SNR: ≧114dB - Input sensitivity: 2V - AUX rated output level: 3.7V - Frequency response: 20Hz-20KHz (±0.7dB) - Working voltage: DC 24-48V - Dimensions (W*D*H): 95*92*50mm / 3.74*3.62*1.97in - Package dimensions (W*D*H): 265*240*65mm / 10.43*9.45*2.56in - Body weight: 506g / 1.12lb - Package weight: 1.1kg / 2.43lb