DESIGN AND BUILD IN POLAND
This OTL Tube headphone amplifier is made of high quality components for excellent electrical and sound performance. Placed in a handmade, solid oak wood case. WIMA and NICHICON capacitors, ALPS potentiometer, precision metallic resistors, NEUTRIK and AMPHENOL connectors. Gold plated, ceramic tube sockets & professionally designed and made printed circuit board.
Description of electrical system:
The signal from the amplifier's input goes to the volume potentiometer and then to the voltage amplifier built on the 6N1P tube, next goes to the 6N13S. The power supply is built on an 80 watt EI transformer. High voltage filtering is based on two CLCLC filters. The input and output stages have separate power supply. In total, three separate power supplies and four electric chokes are used. That greatly reduces output noise (hum) and provides perfect current for vacuum tubes. The amplifier circuit uses automatic current restriction so that it doesn't need any adjustment when replacing the tubes.
Warm - typical for tube headphone amp. Very pleasant for long sessions.
Input impedance: 10 kohm
Sensitivity: 700 mV
Frequency range: 15 Hz - 300 kHz
Output power: 300 mWOptimal headphone impedance: 50 - 600 ohm
Built-in headphone socket: 6.3mm + 3.5mm adapter
Power supply: 220V - 230V AC
Power consumption: 50 VA
Dimensions: 350x200x125 [mm]
1. OTL headphone amplifier
2. Power cable 1.8m
3. 3.5mm Jack adapter
4. 1x 6N13S tube
5. 1x 6N1P tube
6. One year warranty (excluding electronic tubes)
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