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A50s uses the same NFCA (Nested Feedback Composite Amplifier) module from flagship A90. Voltage Current hybrid feedback architecture along with UHGF (Ultra High Gain Feedback) technology provides excellent DC and AC performance. High output current drive capability allows the amp driving low impedance headphones with ease. Ultra-low noise of 0.3uV is miles ahead of the competition, giving an absurdly high dynamic range of 144dB and no audible noise and darkest background for the most sensitive IEMs
Although there is only a single-ended input, A50s has a built-in balanced amp circuit. Therefore, it can drive single-ended headphones by 6.35mm output, and drive balanced headphones by 4.4mm balanced output. Moreover, A50s uses full aluminum case with unique workmanship. The outer casing is made of an aluminum brick through CNC precision machining. It is designed with thermal conductive column to dissipate heat from the power supply and OP-AMP through the entire outer casing
A50s is equipped with two gain settings of 0dB/6dB at SE output(6dB/12dB at balanced output). Wide range of gain settings and the 0.3uVrms ultra-low noise makes A50s easily adapt to all types of headphones from extremely sensitive IEMs to most power demanding full-sized over-ears.
When the A50s is not connected to any headphones, it automatically works in the pre-amplifier mode, and the amplified signal is output from the RCA on the back panel. When the headphone is connected to 6.35mm or 4 .4mm output, A50s automatically switches to the headphone amp mode, and the signal is only output to the 6.35mmand 4.4mm jack.
A50s has a high voltage swing of 42Vp-p, power of 3500mW per channel when both channels are driven and output impedance of less than 0. 10hm. It easily drives power-hungry headphones with a wide range of different impedance
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.
Title reveals most of my thoughts, but it is definitely a great device with excellent sound quality. The low noise floor makes it easier to hear the minute details in a recording, but the existence of the L30 makes me wonder. Why would you want this over the L30 except if you're already fully converted to the 4.4mm pentacon connecter. The gain function of this devices is basically useless 6dB is nothing that makes anything difference, and the L30 offers both -9dB and + 9dB. Furthermore you can access the full power of the L30 with single ended. Assumed that the L30 equals this device in sound quality, I can't justify buying this unit over the L30 in less the size difference, or the looks offend you of the L30, this unit feels obsolete and I feel stupid for buying it. Also heard mains hum plugged in with the included power brick on one of my IEMS, but no hiss, so it might go away if you have the P50.
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 options - Standard Shipping and Express Shipping via DHL Express.
For in-stock products, your order will be shipped within 3 working days.
Customized items will take a longer time (do check in with 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
1. Kindly contact your local courier using the local tracking number. We will not process a refund or reshipment of the parcel since it has been shipped.
2. Customers are to bear the consequences and fees incurred, if the parcel was undelivered due to any of the following situation:
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.
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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.
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