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Product Details:4 + 1 channel lossless handover, remote volume preamplifier .Adopt QCC3008 Bluetooth 5.0 audio module. Support A2DP, AVRCP, HFP, TWS, AAC, I2S, APTX, APTX-LL, etc., using 16M SPI FLASH memory chip.Use Japanese OMRON, purely attenuated volume adjustment.Use Korea SAMSUNG high precision (0.001%) to adjust the resistance.Use the UK ARM-STM dual-core instruction microprocessor.Use Japan OMRON audio gold-plated contact signal switcher.Use custom full linear drive power supply.Use high-definition LED display.
Compatible with a variety of audio equipment: perfect match with players, decoders, AV machines, CD players and other red and white RCA interface signal input and output. It can also be used with digital products such as TVs, set-top boxes, MP3s, and computers.
How to use the function key (M):Signal selection—-Continuous pressing of the knob can cycle the cutover input signal modeVolume adjustment —- knob rotates counterclockwise “-“, knob rotates clockwise “+”Tone adjustment —- long press the knob: “TREBLE” flashes at the bottom left of the screen, and theknob can be adjusted to a range of ±10db.Press the knob once again to display “BASS” flashing, and the knob can rotate the low frequency to adjust the range of ±10db.After the adjustment is completed, press long press the knob to save.
Specifications:Input interface: 4 channels of RCA input + Bluetooth inputLine output: RCA outputPower supply: AC110V or AC220VColor: silverDimensions (W*H*D): 133MM*43MM*159MMWeight: about 0.8KG
Package list:1 × Finished preamplifier1 × Remote control (without battery)1 × power cable
On 20-May-19 at 06:23:12 BST, seller added the following information:
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Category: Sound and Vision:Home Audio and HiFi Separates:Amplifiers and Pre-Amps
Location: 广州