Nobsound Little Bear P7 Class A Pure Vacuum Tube Headphone Amplifier; Pure Tube Preamplifier Audio Preamp; Dual-Headset Out, Kopfhörer/Vorverstärker, Black, SchwarzElektronik
Features This is the latest headphone amplifier designed by Nobsound and Little Bear. It is not only a pure class A vacuum tube headphone amplifier but also can be used as a preamplifier, which can meet different audio device requirements. It adopts the classic S R P P circuit, which has been famous for its low background noise. Its sound output is full of analog style especially suitable for high-impedance headphones (> 200 ohm). With stereo L/ R R C A and 3. 5mm A U X audio input, compatible with i Pod, Phone, M P3 players, T V, Echo Dot, C D players, or Streaming Media players and so on. Dual headphone output (6. 35mm/3. 5mm) provides quiet enjoyments of Hi Fi music. Proper size with exquisite appearance, unique layout and design looks attractive and decent, very suitable for home and desktop audio system use. Parameters Audio input: stereo R C A / 3. 5mm A U X Audio output: stereo R C A / 3. 5mm & 6. 35mm headphone jack Tubes: 6 N5 P×1 ( Replace tube: 6080), 6 N3/6 H3×2 ( Replace tube: 5670) Frequency response: 12 H Z-100 K H Z (-1d B) Distortion: 0. 05% (300 ohm, 80 m W) Maximum output power: 300 mw (600/300 ohm); 350 mw (120 ohm); 250 mw (32 ohm) Output impedance: 32 ohm - 600 ohm Dimensions: 227*152*44 mm Weight: 1. 5 Kg Packing list 1 * Headphone Amplifier 1 * 6 N5 P tube 2 * 6 N3/6 H3 tube (at random) 1 * Power Cord Notice 1. For initial starting, the device needs 5~10s to warm up. While starting, there may be a blue L E D shining for about 3~5s and then it would be steady. 2. Please do not use this device for long time. Taking a 10-minute break every 1. 5~2h working would be recommended. It is normal that the shell is relatively hot after working for one hour. 3. It would be better to use high-impedance headphones (40~600 ohm). It is not suitable for 12~36 ohm headphones.
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