Specifications:
The product features a QCC3008 chip, an ESS9023 chip, a 6K4 chip, a NE5532 chip, and a JRC4556 chip. The frequency response ranges from 20Hz to 22Khz, with an input of BT5.0 APTXs RCA. The output takes the form of an RCA 3.5mm headphone amplifier with a signal to noise ratio of 100dB and distortion at 0.001%. Other notable specifications include; Output impedance up to 600R, Headphone output impedance between 16-150R, RCA input impedance from 600R-20K, Headphone output power between 30mW@16R and 70mW@150R. The sensitivity of the product is 0.775Vrms while the RCA output level is 2Vrms. The device also features treble and bass gain of +8dB, powered by a DC power supply of 12V 1A. It weighs 0.4kg and has total dimensions of 98mm (L) x 148mm (W) x 33mm (H). The product is available in black and silver.
Package includes:
1 Tube Headphone Amplifier
1 DC 12V 1A Power Supply
1 Dual RCA Cable
Features:
This product functions as a HIFI tube fever preamplifier, a tube headphone amplifier, and a HIFI 5.0 Bluetooth lossless audio receiver. The device utilizes an independent ESS9023 DAC design with I2S digital signal output to ESS9023 decoding, ensuring a high signal-to-noise ratio and minimal distortion. Further refinement is made possible through the use of relay switching for signal switching, surpassing common analog alternatives. It also allows for upgrades of the electronic bile duct and op-amp, ensuring versatility and adaptability. With the metal aluminum alloy oxidation drawing process and the black immersion gold PCB board process, this product promises high-temperature resistance, oxidation resistance, and extended lifespan. The inclusion of an independent power supply design with shielding also dramatically reduces interference. A ceramic tube socket ensures durability and optimal contact performance.
