2 IN 1 OUT RCA signal audio switch selector: It can select signal source without plug/replug cables.
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AD828 is the improved version of NE5532, the effect is far more than NE5532 amplifier module. Otherwise deal is final. All products are quality checked. We will be happy to resolve any issues you may have in a cordial and friendly manner.
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Tube preamp & Audio Switcher & Headphone Amp. 1 Tube Preamp. Input signal: Bluetooth, U disk, RCA. Independent tone knob and input selector. Mysterious built-in tube design. Input sensitivity :0.775V.
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Enthusiastic Soviet 6H3N bile duct. - Classic 5532 operational amplifier chip. - Input signal: 4 channels stereo signal. - Output signal: 2 channel stereo signal. - Input sensitivity: 0.775V. - Headphone output load impedance: 32-300Ω.
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STEREO PREAMPLIFIER: The United States for JWYM56543 quality vacuum tube, Japan quality for filter capacitor, HIFI level LNA sound capacitance and analog op amp king for JRC5532DD, external gold plated processing.
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U10 headphone amplifier with strong power: stereo 3.5mm AUX and RCA inputs, compatible with most audio source such as MP3, phones, computers, CD players etc.. Dual headphone jacks (3.5/6.35mm) output up to 1100mW, easily to drive all 18-600Ω headphones; U10 also can be used as a preamp to improve the sound quality for amplifiers or active speakers. Advanced design and HIFI sound: innovative built-in voltage boost circuit, U10 always works at a high voltage of 24V even only powered by DC 5V, the sound with deadly quiet background, amazing purity and transparency, accurate position and wide sound field, easy use and unrivalled sound are both achieved at the same time.
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1 Tube Preamp. Headphone max power: 160mW/32Ω. Headphone output impedance: 32-300Ω. Treble&Bass range: ±6dB. Default Soviet Union 6H3N tube, can be replaced by Beijing 6N3 / Soviet Union 6H3N-E etc. Net weight: 575g/1.27lb.
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Although a bit exaggerated, you can still imagine the high praise of NAC42.5. The circuit uses NAIM original circuit. Adopt TOSHIBA audio ultra-low noise signal tube. Adopt imported tantalum capacitor.
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