YinLvMei B2

AK4497 DAC Portable Bluetooth DAC Amp

  • CSR8675 Bluetooth 5.0 Support LDAC,APTX-LL,APTX-HD,APTX,AAC,SBC
  • AKM AK4497 DAC Chip
  • USB DAC, Coaxial AK4118 Input and output, support 24Bit/192Khz
  • LPF - OPA1612 x2, Fully Balanced architecture, support Balanced LO Out and 4.4mm Out
  • High-precision CNC Shell and Double-Sided Tempered Glass Design
Product Price
$289.00 USD
Terms & conditions

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Free standard shipping to most countries

Free express shipping on orders over $270*. 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.
Free Shipping

Authenthic Products

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

Free Shipping

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*.

Model Number 
Decoding Chip
LFP Operating Amplifier
OPA1612 x2
Bluetooth Chip
Qualcomm CSR8675
Bluetooth Version
Bluetooth Protocol
Coaxial Processing Chip
AK4118 24Bit/192Khz
Support USB DAC
Input Interface
USB DAC Input, 3.5mm Coaxial Input
Output Interface
3.5mm Coaxial, 3.5mm Single-End LO, 3.5mm Balanced LO, 3.5mm Out, 4.4mm Balanced Out
Output Level Value
1.8VRMS (Single End), 3.6VRMS (Balanced)
113dB(Single End), 119dB (Balanced) @1kHz 32Ohm
0.0008%(Single End), 0.0007% (Balanced) @1kHz 32Ohm
Output Impedance
2.2 ohm (Single End), 1.1 ohm(Balanced) @1kHz 32Ohm
Output Power
220mW (Single End), 440nW(Balanced) @16Ohm
25mW (Single End), 50mW(Balanced) @150Ohm
88mm x 75mm x20mm

Coming soon...


Coming soon...

Customer Reviews

Based on 1 review
worst Bluetooth...

The item has good soundthe bass is very good ,clean sound.To bad is not coming with a coaxial cable,all this items they should come with all the cables and connectors they made for.
Is impossible to find a coaxial cable to make a wired connection with my player.
I am saying this because the bluetooth connection is the worst connection,than all the BT items that I have,I am not sure that I received a bad product or all of them they have a problem,with the distance where the bluetooth disconnects .
Mine ,if I take it away from the case,where is stays next to the player,even for a foot distance it looses the connection.Forget going around the house,that will loose the connection for sure,unless they are like 8 inches apart.I am very disapointend how bad this BT is in Yin LU Mei b2,.
thats why,I aws looking for wired connection through coaxial cable, which is hard to find ,beacuse of different sequence of the coaxial cable.

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 $269 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 $270 include free express shipping (DHL or similar). If your order total is under $270 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 Express Shipping, and many countries via Standard Shipping. You may clarify this with our team to check whether Standard Shipping is available to your country.

*Note: Generally, we can only do Selected Shipping to India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few.

This may be subjected to changes due to unpredictable issues such as Covid, war, and etc.

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 is 15-35USD depending on your country. If your order is over 269USD, Express Shipping is free*.

*This applies for most countries. However, large items such as headphones and desktop DAC/AMPs (e.g. HarmonicDyne G200, MUSICIAN MDP-2, and etc.) are excluded.

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. Should you refuse to pay the tax/customs fees, shipping fees will still be deducted from the amount paid for the returned parcel. For parcels that have been destroyed instead of being returned to us, no refund will be processed.

Standard Shipping via YunExpress is a tax-inclusive option for some countries. However, Linsoul will not be responsible for additional administrative or handling fees charged by your local courier company or customs.

For certain remote areas, there may be additional charges via Express Shipping. We will contact you if there is a need to.

Please contact us before placing an order, should you have any queries regarding shipping.

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 support@linsoul.com 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, FedEx and SF Express

YinLvMei B2
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