Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp
Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp

Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial / Optical Integrated Audio Amp

$367.99
Features                  
  • Multiple inputs (lossless support), wide device compatibility
  • Speaker & subwoofer outputs, bass/treble controls
  • Tube-transistor hybrid design, 100W stable output
  • Luxury design with VU meters, real-time display
SHIPPING TO
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Free Shipping

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2-8 Days Arrival

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30-Day Return

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2-Year Warranty

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  • With 5 kinds of analog and digital audio input (Bluetooth 5.0 / USB / Coaxial / Optical / 2 groups of RCA), compatible with almost all audio devices such as MP3, phone, tablet, computer, CD players etc. to meet different needs of home audio systems. U-disk input supports lossless formats such as APE, FLAC, WAV etc., easy to enjoy HiFi music.
  • Besides speaker output (4/6/8Ω), a low frequency output is specially designed to connect active subwoofer to build 2.1 channel audio systems, which can strengthen bass sound effects to bring more shocking experience just like in the cinema. With treble and bass control to bring more delicate sound according to your own listening
  • Integrated design of vacuum tubes and transistors, using EL84/6K4/5726 tube for pre-amplificatoin, WY2P tube for rectification, the sound is clear, warm, smooth and delicate. And using 4PCS Toshiba 5200 and 4PCS 1943 transistors for power amplification, dual toroidal transformers is added that can stably output max 100W in each channel, easily to drive all home passive speakers.
  • Unique design and attractive appearance, exquisite black panel and retro vacuum tube are combined that looks luxurious and elegant. With dual VU meter to dynamically to decorate the listening enjoyment, and display screen can show the working status in real time, very suitable for home and desktop audio system use.
  • Audio input: Bluetooth / 2 groups of RCA / USB(U-disk) / Coaxial / Optical
  • Audio output: speaker jack / low frequency output (connect active subwoofer)
  • U-disk supported sampling rate: 16Bit/48KHz
  • U-disk supported formats: MP3/WAV/APE/FLAC/WMA
  • U-disk max storage capacity: 128G
  • Bluetooth version: 5.0
  • Output impedance: 4-16Ω
  • Rated output power: 100W+100W @4Ω     70W+70W @8Ω
  • Frequency response: 20HZ-20KHZ(±2dB)
  • Power consumption: 300W
  • Input impedance: 47KΩ
  • Input sensitivity: 800mV
  • Treble and Bass range: ±9dB
  • Signal to noise ratio: ≥88dB
  • Separation: ≥80dB
  • THD: 0.1%(1KHz)
  • Dimensions(W*D*H): 330*315*160mm / 12.99*12.44*6.30in
  • Package dimensions(W*D*H): 380*350*210mm/ 14.96*13.78*8.30in
  • Net weight: 7.16kg / 15.79lb
  • Package weight: 9.0kg / 19.84lb
  • Tube Amplifier ×1 
  • Power Cord ×1 
  • Remote Control(without battery) ×1 

Customer Reviews

Based on 15 reviews
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A
Anonymous
Amazing

Amazing

J
Joe Riggins
Truely OUTSTANDING sound. Customer support was amazing.

This is a hard review to write.

After waiting almost two weeks for the first AV-525 to come in, I was excited but quickly disappointed. Only one channel worked and it was very crackly and muffled. After talking with Amazon support (which really didn't know much about audio equipment) I was quickly moved to customer service which decided to RMA it. Not only did they agree to that, But they sent me a new unit in two days. In the meantime, I did send a email to Douk audio about the issue, but they only responded 24hours and I was convinced it was a bad unit and dealt with Amazon on getting the new unit.

Douk was responsive and I let them know a new unit comping from Amazon, so they simply replied to see how it worked for me.

I got the new unit in and all I can say is WOW! Everything worked, and the tube preamp made the sound sooooo much clearer and warm. I was totally blown away. DEFINITELY worth giving this item another chance.

I responded to Douk that the new unit worked beautifully and the responded asking what I thought new features should be. I gave them a list including streaming capabilities and the ability to setup a bluetooth subwoofer, among other things.

I really feel since I got the response I got from both Amazon and Douk audio, there is more to a purchase than just the item. It was well worth the trouble and I am completely satisified with the end result.

This Amp is just amazing. Listening to some "Nothing else Matters by Metallica" as I type this.

Kudos to Amazon and Douk audio. Could I have spent over $1k on something better, yes, but for the money this is a pure joy.

If you make a few thousand of anything, there are bound to be some bad apples.

I hope this helps others when making a decision.

S
Stan
Tub amp all the way

Love the way this amp sounds just something about tub amps that makes the sound that much better and to add really cool looking unit worth the money all the way

C
Coonhound
Great sound at great price.

I bought this to power my deck sound system. It allows me to have in the words of Neil Young, "More barn!".
Indeed it does. Sound is clear and full.

A
Anicehuman
Great product and seller

This item arrived quickly. It was exactly as described . Sadly I needed to return item…which the seller made easy

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