Bile Preamp Tube Valve Amplifier Bile Buffer 6J1 MINI HIFI Preamplifier Volume Tone Board Sound Control Panel
The amplifier has its own "valve taste", with warm and classic sound quality, good music sense, good atmosphere, its obvious advantage is sweet and soft sound, natural attention, especially its dynamic range and the degree of good linearity can be easily replaced by his equipment.
Broad combinations and powerful applicability: it can be combined with all available audio signals on the market: power amplifiers and active speakers with analog and digital signal inputs.
Classic valve 6J1 design: using classic valve 6J1 design, optimization loop, valve design can be replaced, produce soft, sweet mellow timbre.
Power conversion module: the product uses AC-DC power supply design, DC12V power supply, and it can be widely used.
Outstanding technology, highlighting personal style: the product adopts CNC technology full aluminum shell.
Use boost mode, high voltage power supply: better than normal power mode AC100V-240V.
Soft tone, mellow voice foundation, sweet and warm, transparent and classic.
A937 is a high-performance portable mini valve signal preamplifier, sound quality processor, built-in high performance boost processor and signal amplifier.
As far as circuit design is concerned, it assigns I / O signal processing and amplification to the most classic valve 6J1.
The valve is specially designed for high performance audio system, with ultra low harmonic distortion, low noise and high gain bandwidth.
Dual FET input provides wider dynamic range, as well as audio signal amplification and bipolar circuits.
The valve sound enhancement processing technique can correct and restore the signal loss and phase deviation caused by the audio signal system for various reasons, thus faithfully reproducing the sound, making the audience feel rich bass and pitch, the sense of positioning, clarity and brightness close to the ideal scene effect, adding audio in the sound system.
The signal enhancement circuit will make the sound more beautiful, the depth, the delicate and clear sense, the high sound, the soft and soft, natural and mellow bass, as if the listener placed it on the spot.
The valve signal preamplifier is mainly used for signal input, such as computer, cell phone, tablet computer, game machine, TV set, TV box, MP3, signal source output equipment and so on.
The product I / O uses universal RCA interface and audio signal amplification switch. The product has a wide range of applications.
It is suitable for various signal input devices, or as a signal preamplifier. The power supply and signal use the boost module to realize voltage isolation. The high precision Taiwan made potentiometers are used for balance and calibration, with high positive / negative voltage balance.
In addition, it also has a high capacity professional filter capacitor for filtering, and the power supply is quite clean. Signal amplification is cleaner.
Classic valve 6J1 parameter heater type oxide cathode super sharp cut-off electrode:
Filament voltage: 6.3V, current: 0.17A
Flat voltage: 120V, current: 7.35mA
Second power grid voltage: 120V, current: 3.2mA
Transconductance: 5.2mA / V
Cathode resistance: 200 Omega
Input impedance: > 12K
SNR:> 100 decibels
Audio I / O:RCA stereo jack
Net weight: 286g
Product packing weight: 447 g
Product size: 99.1mm/3.9" (L) X 95.1mm/3.74" (W) X 30mm/1.18" (H)
Packing size: 20 cm/7.87" (L) X 18 cm/7.09" (W) X 5.5 cm/2.17" (H)
If the product is noisy, it may be due to:
1. The valve is not inserted correctly. Check carefully to insert the valve again. Please insert the valve correctly in the closed condition.
2. This product is a preamplifier with signal amplification function. If the sound source is noisy, it may amplify the noise of the source. Please use the sound source to play properly.
3. For noise caused by poor signal quality or poor power filter, you can choose to exchange signal lines or use power to play audio signals.
1 x Preamplifier
1 x 100-240V AC Adapter (DC12V), US Plug, power cord length 100cm/39.34"