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As M400, M400 plus adopts the newest AKM flagship DAC-AK4499 chip which has 4 sound channel and 8 output channels. Each channel is equipped with an IV operation amplifier, in total of 4. It is of high resolution, and density. M400 plus is powered by 8 330UF E-type tantalum capacitor. It’s powerful
M400 plus has a built-in asynchronous USB chip-SA9227. With this chip, it’s easy to manage the output and the reforming of digital signal. Along with 3 pieces of high precision timer crystalloid, it’s more accurate and the sound quality is more elegant. Besides, the SA9227 can be a professional USB DAC
M400 Plus adopts the Bluetooth 5.0 CSR8675 chip from Qualcomm. It’s more stable and faster in transition. It supports LDAC/APTX-HD/APTX-LL/APTX/AAC/SBC protocol. Built-in 5000mAh large capacity battery ensures long playtime. Moreover, the Qi wireless charging features makes it easier to recharge the device. Simply put your M400 plus on the wireless charging pad, and enjoy free-of-cable charging
M400 plus adopts customized special tuned dual operational amplifier and 8 power tubes. It has two levels of thrust control and can greatly decrease the distortion. The sound is smooth and detailed with broad sound stage. Easy to use with your phone or any other devices
M400 plus adopts the luxurious volume control system-programmable simulation volume. It can not only solve the low volume and distortion issue of traditional simulation potentiometer, but also avoid the compress of dynamic while using digital volume control system. 2 pieces of PGC2311UA makes 4 channel system. It makes the M400 plus is of high standard of sound output.
Linsoul Audio is the authorized distributor. All products are authentic and genuine.
We are located in china but send our products worldwide for free.
We provide 1 year warranty for the all products except the cables*.
We reply to all support inquiries within 3 working days.
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.
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 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.
All items over $200 include free express shipping (DHL or similar). If your order total is under $200 you can manually add Express Shipping during the checkout period for $15.00 USD
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.
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.
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:
*Note: Timings might be affected due to festive seasons or other unforeseen circumstances
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.
For faulty/missing items, please send an email to firstname.lastname@example.org 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
Please kindly check the following guide first: CIEM Ordering Guide
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.
We collaborate with these courier companies:
Standard Shipping: 4PX, UBI, NinjaVan, and Yun Express
Express Shipping: DHL Express and SF Express