Description

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 SRPP 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 RCA and 3.5mm AUX audio input, compatible with iPod, Phone, MP3 players, TV, Echo Dot, CD players, or Streaming Media players and so on. Dual headphone output (6.35mm/3.5mm) provides quiet enjoyments of HiFi 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 RCA / 3.5mm AUX
Audio output: stereo RCA / 3.5mm & 6.35mm headphone jack
Tubes: 6N5P×1 (Replace tube: 6080), 6N3/6H3×2 (Replace tube: 5670)
Frequency response: 12HZ-100KHZ (-1dB)
Distortion: 0.05% (300 ohm, 80 mW)
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: 1.5Kg

Packing list:
1 * Headphone Amplifier
1 * 6N5P tube
2 * 6N3/6H3 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 LED 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.

Nobsound HiFi Class A Vacuum Tube Headphone Amplifier Stereo Audio Preamp Pure Valve Preamplifier

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$119.99

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Product review & video

[Music] [Music] [Music] [Music] [Music] [Music] [Music] [Music] so [Music] [Applause] [Music] [Applause] [Music] hey youtube this is ricky again with another review today we're gonna be reviewing the duke audio p1 it's also known as the noopsam noop sound something like that has a lot of names but first i want to thank everybody for your support make sure you like share and subscribe and at the end of the video i'm gonna have my giveaway video so check that out so you get a chance to win the shanley q1 so yeah uh i ordered this tube amp because they had a lot of reviews a lot of good reviews on amazon and it's not it's only 99 99.99 and it has 298 ratings so i said yeah i'm gonna order it and give it a chance see how it sounds and yeah we're gonna check it out uh i tested with the hd 598 and with the ammo walnuts and let's go to a little bit through the specs here it says uh the output