Nobsound NS-08E 迷你真空管耳机放大器 HiFi 桌面立体声音频前置放大器

$46.99

Features

Up to 1000mW of Power
Used as A Tube Preamp
Warm and Smooth Sound of Vacuum Tubes
Plug-and-Play

Free Shipping

2-8 Days Arrival

30-Day Return

2-Year Warranty

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Powerful Output for Any Headphone: With up to 1000mW of power, the P32 easily drives everything from sensitive earbuds to large gaming and high-impedance headphones (24-600Ω). You'll hear loud, clear, and dynamic sound, finally unlocking what your headphones are truly capable of.
Also a Tube Preamp to Boost Your Speakers: Connect from 3.5mm jack and use P32 as a stereo tube preamp to add warmth and character to your desktop active speakers or a home power amplifier. P32 provides a significant upgrade to your entire sound system.
Warm, Rich Tube Sound: Instantly upgrade your computer or phone's audio with the warm, smooth sound of vacuum tubes. The P32 makes your music feel richer and vocals clearer, bringing new life to your favorite songs, allowing music lovers to hear more detail without any distracting background hiss.
Plug-and-Play with All Your Devices: The P32 works with various sources, featuring both RCA and 3.5mm AUX inputs to connect with your PC, phone, TV, or tablet. For your headphones, it has both 3.5mm and 6.35mm jacks, so you'll never need to search for an adapter again.
Future-Proof Customizable Sound: This is a headphone amp that can grow with you. For those who like to experiment, the vacuum tubes and op-amps are swappable, allowing you to easily tweak the sound. You can explore the HiFi world at your own pace without needing to buy a new device.

User Manual of Nobsound P32

Warm tips

Please use the supplied DC 5V/2A power adapter to ensure optimal performance of the P32. If using other power supply, make sure it provides at least 2A current. Otherwise, the P32 may not function properly.
The RCA and AUX inputs, as well as the 3.5mm and 6.35mm outputs, work at the same time. Please don't connect the two inputs at the same time, or else audio signals will be mixed.
P32 adopts 2PCS pluggable NE5532 op-amps, which can be upgraded by LME49720NA-DIP-8 or any other dual op-amp in an 8-pin package with an output current exceeding 50mA.
P32 adopts pluggable tube socket, default 6J5 vacuum tubes, can be replaced by 6J1, 5654, 6AK5, EF95 etc. For a full list of compatible tube models, please refer to the user manual.
P32 can easily drive all headphones even with high-impedance such as HD580/HD600/HD650/K701/K702/Q701/DT880/T70/T90/SR225/SR325/RS1e etc.

Brand: Nobsound
Model: P32
Audio output: 3.5mm/6.35mm headphone jack
Output power: ≥1000mW (32Ω)
Matched headphone impedance: 24-600Ω
Frequency response: 20-30KHz
SNR: ≥ 110dB
Output voltage swing: 24V
Input voltage: DC 5V/≥ 2A (5.5*2.5mm)
Dimensions (W*D*H): 78*82*32mm / 3.07*3.23*1.26in
Package dimensions (W*D*H): 135*85*90mm / 5.31*3.34*3.54in
Net weight: 220g / 0.48lb
Package weight: 400g / 0.88lb

P32 Headphone Amp × 1
6J5 Tubes × 2
DC 5V Power Adapter × 1
User Manual × 1

Good sound for little money!

The amp was delivered quickly and arrived well packed and in pristine condition. I've been using it with, for example Sennheiser HD 700 (headphones better than their reputation imo) and at least for my ears, the amp colors their sound quite pleasantly, making it warmer.

Nice sound

Nice sound.

Excellent sounding

Small, nice and exzellent sounding, fair price, quick delivery.

For the price its great, power wire is very short.

I love this amplifier, Looks great, the tubes sound good but if you want to upgrade I would recommend "Riverstone Audio - Tested/Matched Pair (2 Tubes) 7-Pin JAN 5654W". The power wire was short and hardly reached my power outlet, I had tension on the power wire from hardly reaching and after a year I started to get a buzzing sound. I thought it was the tubes originally and upgraded but still had the noise. Than I noticed the power wire near the box was loose and could be moved left and right. Ordered a new power wire, was belker universal one. No issues. The difference in sound quality using this amplifier is night and day. I love it. I use DT 990 Pro 250 ohm studio headphones, they are very popular, highly rated and affordable. I have an 80 ohm pair and this amplifier makes a big difference with those too

OK Out of the Box, Even Better with a Little Investment

I am giving this amp 4 stars as out of the box it is just ok. Build quality for the price is really pretty good, with the volume control feeling nice and solid. The sound of it is not bad, especially at volume. However, with the supplied tubes it is a noisy little amp, with audible hum at low volume levels. I guessed that the hum was originating in the tube preamp section so I replaced the tubes with UE 6136 tubes ($10/per) and that did the trick. It became MUCH quieter, and the sound was nice and rich. I compared it with a Schiit Magni (solid state amp, $99) and with the new tubes the Nobsound could hold its own, and, depending on your preferences, I could see many people preferring the Nobsound. It was quite musical. (I came away pretty impressed with the 6136 tubes! I had originally selected them randomly as they were pretty inexpensive.)Because it offers such an easy upgrade path it gets a thumbs up.

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