RFTLYS EA1A Class A Single-Ended EL34 Tube Headphone Amplifier & Integrated amp Wireless Bluetooth With protective cover. The input voltage amplification stage is served by an amplifying triode electron tube, and a two-stage common cathode resistance RC coupling amplifier is combined. In order to improve the input voltage amplifier stage electrical performance.
Reduce distortion, broaden the frequency response, and add current feedback at the cathode of the two-stage amplifier. The power amplifier stage is composed of a standard class Class AB1 power amplifier circuit.The power amplifier tube to screen load impedance is 6 kohms, and the plate voltage is 375V. Using only the gate negative bias mode, the zero-signal push-pull two-plate electrode power is 85mA, and the large screen current increases to 150mA. Rated output power is l6W, high power can reach 22W. 4.0 Bluetooth HiFi Module.
The amplifier supports Bluetooth input and can be easily paired with Android, iPhone, iPad, Tablet PC and other devices. Support headphones to switch output, is a tube headphone amp. Pure bile, pure hand-made, the whole machine adopts scaffolding welding.
Use two high quality wide frequency response EI output transformers. Use an EI-type high-quality audio-dedicated power transformer developed specifically for this purpose. In the previous stage, two 6N1 vacuum tubes and one 12AX7 vacuum tube were used. Two EL34 vacuum tubes were used as AB1 push-pull power amplification in the later stage. 7 Select Japan ALPS high-end potentiometer.Easy to install plug-in vacuum tube protective cover. Output Impedance: 4 ohms, 8 ohms. Headphone output impedance: 32-300 ohms. Signal to noise ratio: 85dB(A weight). Vacuum tube: EL34x2, 6N1x2, 12AX7xl.
Dimensions: width 210 x height 156 x depth 343 (mm). Power Supply Voltage: AC 100V - 240V / 50Hz-60Hz (100V, 110V, 120V, 230V, 240V version will take 2-7 work days to order), 220V version is in stock. We are dedicated to offer the best audio-visual products at the lowest price to our customers.
Bringing great products and customer service, and thus help enriching our customers lives is our ultimate goal. Brand new replacement with 30 days.Our office hours are 8:30 a. M to 6:00 p. M (GMT +8) of Monday to Friday. And our Office is closed on Sunday and public holidays. We apologize for the late reply during the holidays. Since online shopping uncertainty, so thank u very much for choosing&trusting us. Our service is ready to help u any time, your feedback is extremely important to us. Then we'll send you the return slip. The item "RFTLYS EA1A Class A Single-Ended EL34 Tube Headphone Amplifier & Integrated amp" is in sale since Tuesday, March 26, 2019. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "hifiaudioamplifier" and is located in guangzhou.
This item can be shipped to United States, all countries in Europe, all countries in continental Asia, Canada, Mexico, Australia.