32Bit/768k DSD512 Fully Discrete Class A DAC Headphone Amplifier

    Lower distortion, higher fidelity
    Fully Discrete Amp Circuit, Better Transient
    Outstanding Balance Control, Ideal Duration
Product Price
$299.00 USD
Terms & conditions

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Free standard shipping to most countries

Free express shipping on orders over $200*. Enjoy free tax and duty paid to most countries. Please refer to our shipping FAQ to see if you apply.

Covid-19 Shipping Delay Notice

Shipping may be delayed due to covid-19 depending on your country regulations.
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Authenthic Products

Linsoul Audio is the authorized distributor. All products are authentic and genuine.

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Worldwide Free Shipping

We are located in China but send our products worldwide for free. T&Cs apply.


1 Year Warranty

We provide 1 year warranty for the all products except the cables*.

Fully Discrete Hi - Res Multi - Scenario

The Bu1 is a high quality portable DAC with headphone amplifier that purely focuses on sound quality . It supports up to 32bit/768k and DSD512 decoding ; the amp is fully discrete; supports Apple / Android portable devices / portable music player connection; can be used in multiple scenario

Lower distortion, higher fidelity

Your Smartphone`s Best Partner ( corresponding cable needed ) and distortion as low as 0.00076%. As smartphone supports higher resolution music files and the online music library grows larger, the portable Hi - Res with headphone amplifier is becoming a must for phone HiFi. Connected to the BU1 , your cellphone will instantly become a Hi - Res music player .

Easy connection

With darker background, the noise as low as 1.97uv. Add the Special Taste of Fully Discrete to Your DAP. The bu1 supports connection with portable music players via USB. Try the special taste of the discrete amp.

Reproduce the Master - Tape Level Music on Your Computer

Connect the bu1 and your computer to decode Pcm 768k and DSD512 . Then connect it active speakers or headphones . A vivid music scene will be presented to you.

Enjoy Higher Fidelity Phone Entertainment

Watch concert videos and movies and play games on your phone with the BU1 . Higher fidelity, more enjoyment.

Rigorous Hardware Selection

The communication level SR series PCB leads to better high frequencies ; the Bl conductive potentiometer leads to higher precision; the ultra-low-jitter oscillator leads to higher sound purity ; the ceramic capacitor leads to lower distortion..

Pure power supply , pure sounds

Positive and Negative Voltage Regulator Electrogenic Pump Leads to Wide Dynamic Range. The BU1 continues to use the classic positive and negative voltage regulator circuit. The circuit is ensured to stay in the best working condition. Thus the performance is maximized. USB decoding powered by internal battery.

Fully Discrete Amp Circuit, Better Transient

The BU1 uses the amp circuit that is DC - feedback and fully discrete , resulting in the extended frequency response and excellent transient. ON high - performance transistor applied.

A Beautiful Work of Art

The chassis cut by from a whole block of aluminum , the no - screw design , the brushed finish, the concentric knob / buttons BU1, a beautiful work of art with excellent details.

Outstanding Balance Control, Ideal Duration

Current / driving ability / size performance are in proportion. The BU1's 4000 mA battery guarantees ideal current , performance and great sound quality. In the compact body , the duration reaches 8 hours ( measured at low gain ; paired with the IE80 ).

Aesthetic Design

The design philosophy of symmetry and balance , together with the element of aune`s logo rounded letters, gives it great aesthetics.

Excellent Specifications

Layout by the designer of the classic B1. Output distortion is as low as 0.00076‰ ; noise is as low as 1.97uV. Dark background, rich details..

Professional Tuning

The tuning is based on real instrument sounds and musical content referencing , resulting in a signature that is natural and full of musicality.

USB Input Maximum Bit Depth
USB Input Maximum sampling rate
USB Input Maximum DSD rate
Line output Level
2.0 Vrms
120 dB
0.00076 %
Headphone output power
30mW @300ohm
0.0009 %

Coming soon...


Coming soon...

Customer Reviews

Based on 1 review
Paulo Silva
uauuuuu what a machine, great

best sound ever

Our Shipping Process

If everything goes right our system will automatically generate your order and send you a confirmation email. If you don't receive the confirmation email please double-check that it wasn't automatically stored in your spam or promotions folder.

3 Working Days*

Most of the items you see are in stock and ready to be shipped after 3 working days. If you plan to order a custom (Design or Fit) product, a pre-order, or a made to order item processing times may change on item to item basis.

Standard Shipping
15 to 30 Days.

Standard shipping is offered free worldwide for orders under $199 USD (with some exceptions), but please consider that delivery times may vary considerably depending on your country, up to 90 Days.

Express Shipping
3-6 Working Days.

Most items over $200 include free express shipping (DHL or similar). If your order total is under $200 you can manually add Express Shipping at the checkout page for $15.00 - $35.00USD

Shipping FAQ's

Which countries do you ship to?

We are generally able to ship to most countries via DHL Express, and many countries via Standard Shipping. You may clarify with our team to see whether Standard Shipping is available to your country.

*Note: We can only do Standard Shipping for the UK, India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few.

How much does shipping cost?

We have two shipping methods - Standard Shipping and Express Shipping.

Standard Shipping is free for most countries, while Express Shipping via DHL Express is 10-35USD depending on your country. If your order is over 200USD, DHL Express Shipping is free*.

*For some countries, DHL Express is only free for orders above $239USD. Large items such as headphones (e.g. HarmonicDyne Zeus, Gold Planar GL2000, and etc.) are exceptions as well.

Shipping fees exclude import taxes or processing fees that might be applicable for your country. Linsoul is not responsible for any form of such fees.

How long does it take to process my order after it is placed?

For in-stock products, your order will be shipped within 3 working days. You may check with our staff regarding the in-stock status of any products. 

Customized items will take a longer time. Please contact our staff for more information.

On normal non-sale days, once your parcel has been shipped out:

  • For Standard Shipping, it takes about 2-3 weeks for items to be delivered after shipping out. For some countries, it might take up to 2-3 months, depending on your country and its customs. The duration for transit is something beyond our control. Linsoul will not be making refunds for such cases. Please consider an upgrade to DHL Express or keep the waiting time in mind.
  • For Express Shipping, it takes about 3-7 days for items to be delivered after shipping out.

*Note: Timings might be affected due to festive seasons or other unforeseen circumstances

What happens if the parcel has been shipped but not delivered?

  1. First, kindly contact your local courier using the local tracking number.
    If your parcel were to be in transit for at least 3 months, it may have been lost in transit.
    For orders below $50USD, you may either opt for a one-time reshipment of parcel OR a full refund of the amount paid in cash via PayPal/Credit/Debit card.
    For orders above $50USD, we will only process a 50% refund of your order paid in cash via PayPal/Credit/Debit card. Should there be any concern about Standard Shipping, you are encouraged to opt for DHL Express Shipping instead.
  2. Customers are to bear the consequences and fees incurred, if the parcel was undelivered due to any of the following situation:
    • Wrong address or phone number provided by recipient
    • Recipient was uncontactable when courier company contacted
    • Refusal to sign for the package by recipient
    • Lost or damaged parcel because recipient opted for “no-signature delivery”
    • Refusal to pay for the local tax/processing fee by recipient
    • Refusal to provide supporting documents for custom clearance by recipient

Who will pay for my import tax/custom fees?

Customers have to bear any form of custom/import/processing fees that are applicable for your parcel.

Should you be unwilling to pay for the fees and reject the delivery of the parcel, you will still have to pay for the shipping cost. Linsoul will only refund the amount of your order after deducting the shipping cost incurred.

How do I get help for my order?

For faulty/missing items, please send an email to to process warranty. In your email, please choose an appropriate Subject Title. Kindly include your Order Number, and state your issue clearly. Please also attach photographs/videos as “proof”, if any. Our team aims to review your email within 3 working days.

For other queries, the fastest way to contact us is via our website or Discord

How do I order Custom In-ear Monitors (CIEMs) on Linsoul?

Please kindly check the following guide first: CIEM Ordering Guide

Do I get tracking details for my order?

After placing an order, you will receive the order confirmation email. After your order has been shipped out, you will also receive a tracking email. You can track your order via the tracking number online. Should you not have received the emails or face any difficulties tracking your order, please kindly contact us for support.

What shipping companies do you use?

We collaborate with these courier companies:
Standard Shipping: 4PX, UBI, NinjaVan, and Yun Express
Express Shipping: DHL Express and SF Express

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