>Fully-Discrete NFCA modules.
>Headphone amp and Pre-AMP application.
>4-Pin XLR+4.4mm Balanced+6.35mm SE Output.
>Precise Relay volume control.
>Two-level gain settings.
>Superb performance with Ultra-low THD+N 0.000055%.
>Excellent dynamic range of 145dB.
>Tremendously powerful(Output rating 9800mWx2).
>Extendable Via EXT90.
Packing an ultimate performance with fully-discrete NFCA modules, the all-new Topping A90 Discrete headphone amplifier is here. Topping has used fully discrete components to redesign its famous NFCA(Nested Feedback Composite Amplifier) module. The A90 Discrete has got four built-in NFCA discrete modules, each of them featuring 39 transistors building up a fully balanced structure. With this discrete component circuitry, the A90 Discrete packs a tremendously powerful output producing about 9800mW of clean, noise-free output ratings at 16Ω of load. Topping A90 Discrete works flawlessly with EXT90 extender adding three XLR connections and one RCA connection. Topping A90 Discrete is designed to be there with high-end desktop chains!!
Fully Discrete NFCA Modules:-
Topping has redesigned the famous NFCA(Nested Feedback Composite Amplifier) module with fully discrete components. The A90 Discrete houses four NFCA-Discrete modules that adopt 39 transistors building up a fully-balanced circuitry producing powerful amplification to the supplied signal. This discrete structure is supported by optimized Voltage Current hybrid feedback architecture along with UHGF(Ultra-High Gain Feedback) technology providing excellent DC and AC performance. With this fully discrete design, the output capability of the A90 Discrete is stronger than ever, providing a tremendously powerful signal amplification.
Both Balanced & Single-Ended Headphone Connections:-
Topping A90 Discrete houses three headphone output ports. It supports both single-ended as well as balanced headphone connections with a 4-pin XLR and 4.4mm Balanced connections and a 6.35mm single-ended connection. The amplifier is designed to cater to the needs of both low-power requiring as well as demanding headphones. It provides high output voltage, high current, and low output impedance, allowing the users to pair any headphones with the A90 Discrete.
Super-Clean Performance With Low Harmonic Distortion:-
Topping A90 Discrete is a highly-powerful headphone amplifier. It’s not all about the power with the A90 Discrete. It maintains ultra-low distortion even at its peak load. Talking about the specs here, Topping A90 achieves <0.1% THD+N at 6700mW of peak power at 32Ω of load. Pairing 300Ω headphones, it maintains an ultra-low distortion of <0.00003% at 950mW of load.
Two-Level Gain Settings:-
Topping A90 Discrete has got two-level gain settings. Low gain is suitable for IEMs and Headphones with high sensitivity while high gain can be used to drive high-power requiring full-sized headphones. In a single-ended connection, the low gain is at 0dB and high gain at 9.5dB. Balanced output connections have 6dB of gain at the low-gain level and 15.5dB of gain at the high-gain level.
Ground Loop Noise Eliminator:-
The ground loop might introduce some unwanted noise into the output signal that might ruin the experience for users. Topping A90 Discrete has got a GND/LIFT switch to rectify this problem. If you notice Ground Loop noise, simply switch it to Lift and A90 Discrete will eliminate the ground noise for you.
Works as a Pre-AMP too:-
Topping A90 Discrete works as a pre-amp too. When switched to pre-amp mode, expect a true high-end performance same as its headphone amp mode. It has 20Ω SE and 40Ω balanced output impedance. It can be used as a pre-amp and as a headphone amp simultaneously with no degradation in sound performance.
QUESTIONS & ANSWERS
Have a Question?
Be the first to ask a question about this.
The final shipping cost and estimated delivery timeframe will be available to you during checkout. Currently, we offer 3 International shipping methods which are steady and easy to track. Priority worldwide shipping, Premium ( Partial countries) and a faster Express shipping. The estimated times stated below are not guaranteed. An international package could experience delays like postal strikes or severe weather or Cov-19 situation. All shipping ways, PO Box address is not acceptable.
If you don’t receive your order within the estimated time frame provided below and suspect that it might be lost in transit, please contact HiFiGo Support ( email@example.com ) and we can look into the order with the courier. Lost-in-transit requests must be submitted to HiFiGo Support within 3 months of the date of shipping or before the courier archives the tracking information.
Option 1. Express by DHL/UPS/Fedex/Aramax/SF etc ( there may be tax need to pay in this way)
!!! Express Free Shiping on US$500+
The estimated time of delivery is usually 3-7 Days depending on the country. Includes detailed tracking and confirmation of delivery.
1.Kindly remind that we will deduct you the round freight before refund you if customer reject to pay the duty tax. (P.S. tripple freight for returning the product)
2.For some remote areas, there may be an additional charge of US$ 35. Your order shipping date may be delayed few days if the place is remote because we need find out proper carrier to send out to avoid remote fee, otherwise we will contact you for remote fee or order could be cancelled. If you are unsure whether your location is considered a remote area, we recommend contacting us to confirm.
3. Address characters should be within 30-40 letters.
Option 2. Premium ( 6-10days, All tax and Duty Paid)
All tax and duty are prepaid to carrier by HiFiGo before shipping, so you dont need to pay any tax or duty when you get it.
Note: Address characters should be within 30-40 letters.
Premium Available: France, Germany, United Kingdom, Italy, Spain, United States.
United Kingdom: https://t.17track.net/en#nums=YT2134221222009882
Option 3. Priority shippingIf we marked it is with all tax and duty paid, all tax and duty are prepaid to carrier by HiFiGo before shipping, so you dont need to pay any tax or duty when you get it.
Note: Address characters should be within 30-40 letters.
America (with all tax & duty paid, Free shipping on $100+ )
United States/: 1-2 Weeks, average 10 days
Europe ( with all tax & duty paid, Free shipping on $300+ )
1. France, Germany, United Kingdom, Italy, Spain : 1-2 weeks , avg. 10days.
United Kingdom: https://t.17track.net/en#nums=YT2134121272173175
2. Austria, Netherlands, Hungary, Portugal, Poland, Belgium, Czechia, Denmark, Greece, Ireland, Luxembourg, Slovakia, Sweden, Bulgaria, Finland, Slovenia,Latvia, Malta, Norway : 1-3 weeks, avg.2 weeks .
3. Croatia, Estonia, Bulgaria,Romania, Lithuania : 2-4 weeks,avg.3 weeks
4. Russia: 2-3 weeks（only can ship products excluding batteries）
Switzerland: 1-2 weeks
Ukraine/Belarus: 3-5weeks,avg. 4weeks
Asia (with all tax & duty paid , Free shipping on $100+ )
Australia (with all tax & duty paid, Free shipping on $100+ )
Registered Airmail service
We have stopped the normal registered airmail service due to the extremely long delivery times which made us unable to guarantee the delivery of your order before a certain date. Due to these circumstances and lack of tracking information. We've decided to not offer this shipping option. We appreciate your understanding.
If you chose Express (DHL/UPS/Fedex etc) : You are responsible for paying taxes and duties. But we usually declare an item at a lower value , leave us a message with the desired value if you want.
If you chose Priority service marked with tax and duty paid: All tax and duty paid by Hifigo.
You can Track Your Order by clicking here.
Please note: It can take up to 24 business hours for your tracking number to become active. In some cases, It may take up to 3 business days to update.
Shopify supports only one currency that is US Dollars. On payment, it gets automatically transferred to US dollars. Due to the currency exchange rates fluctuating almost daily, the prices in other currencies on our store at HiFiGo is just for your reference. Final price might be a little bit higher or lower depending on the current dollar rate.
After you place your order, you will receive an email with your order confirmation.
After your order processes, you will receive another email with tracking information and you will soon be able to track your order.
1.All orders ship from our warehouse in China within 1-3 business days unless stated otherwise. Please allow 1-3 days of processing time. Some items may require a longer ship-out and/or delivery timeframe. We will notify you immediately about the expected delivery timeframe, with the option of canceling your order for a full refund.
2.We will ship the product with the correct power voltage selection and adapter according to your country in shipping address. If your requirement is different with your country standard, please email us.
Packaging samples for different sized items. All products that we have on our store are 100% genuine and comes with their original retail packaging from the brands. Please note that the package might get opened for checking at customs in your country to inspect the cargo. Due to this single reason, we can’t guarantee you get your shipment 100% sealed when you get it.
Why hasn't my order shipped yet?
Typically, it takes about 1-3 Business Days of processing time before we ship your order. We ask that you allow us 1-3 Business Days to process your order!
You will receive an email to confirm that your order has been shipped. So please check your inbox in 1-3 Business Days.
I've been looking to buy a music player Hiby R6 ( US$799) and I wanted to know how much it would cost shipping to My country Romania / Spain/ Germany/ Norway/ Japan /Austrialia etc ?
There are two shipping ways to your country:
1.Express shipping(DHL/UPS etc) with 3-5days arrive( $500 order free shipping), we could undervalue the shipping invoice for you in order that you could pay less tax or duty.
2. Priority shipping to EU/ US / CA/JP /AU / South Africa with all tax and duty paid. 1-3weeks. ( $ 100 order free shipping ). We suggest to chose this shipping way, it is steady, good tracking information and you dont need to pay any tax & duty.
I've received a tracking number for my order. Why is my tracking not working?
Although your order can "ship", sometimes the online tracking will not update until 24 hours later. Usually, expect to see updated tracking information on the next business day after you receive your confirmation email/SMS. We appreciate your patience.
How can I track my order?
- Simply click on this link here to be redirected to the order tracking page.
- Enter the tracking number found on your order confirmation email.
- You will see up-to-date shipping information about the status of your order.
If You Have Any Questions Or Concerns, Please Contact Us so that we can help you.
If the package shipped, can I reject to receive it?
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.
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
Non condition Returns
We offer a 7-Day Return Policy. You have 7 days to return an item from the date that you received it. (confirmed by Shipping Tracking record). To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in it's original packaging. If it is plastic sealled when you get it , it should remain plastic sealled. Some types of goods such as CIEMs cannot be returned.
You will be responsible for paying the shipping costs for returning your item. Shipping costs we send the product to you are non-refundable（ write us in advance how much it is）and Custom Duty when it come back to China is non-refundable too ( we will send you receipt after we get it ). If 7 days have gone by since you received your item, unfortunately, we can’t offer you a refund or exchange.
Warranty Reason Returns
If the product doesnt work properly during warranty leadtime and confirmed to be defective , the item could be returned for repair. HiFiGo will afford the freight to send it back to you after repair.
Wrong Item reason Returns
Pls contact us at very first time if you get the wrong item and dont use the product , keep the package as original as it is and we will cover all the freight and tax back and send you correct one immediately.
We may refund you for following reasons,
1. Returned items due to the policy of returns once we get it.
2. Order cancellation
3. Other reasons.
If you paid by credit card, It will arrive you within 7 working days usually. The time will depends on the bank handling time. If you pay by paypal, It will arrive you within few hours. If you didnt get the refund during above leadtime, write us to check the reason.
Refunded amount may be slightly different with your original national currency payment due to Currency Exchange rates varying, HiFiGo is not responsible for the difference.
There may be transaction fee deducted by your bank when order is cancelled or refunded fully or partially, HiFiGo is not repsonsible for this if your bank charge you any additional fee.
We only replace items if they are defective or damaged.
If the item is marked as a gift when purchased and shipped directly to you, it cannot be exchanged , refunded or warranty.
How long is the warranty period?
HiFiGo warrants to the original purchaser that the Product(s) shall be free of any defect in material or workmanship for a period of one year for labor and one year for parts from the date of the original order except the items listed below:
Desktop DAC/AMPs IEMs and Dongles : 1 years warranty
Cables and Adapters: 3 months warranty
(excluding carry cases, ear tips and other accessories)
Should the Product(s) supplied by HiFiGo prove defective because of improper workmanship or material as reasonably determined by us, HiFiGo agrees, at its option, to either repair or replace the Product free of charge, excluding any shipping or handling charges.This warranty extends only to personal use & does not extend to any product that has been used for commercial use, rental use, or use which is not intended. There are no warranties other than expressly set forth herein.
THE WARRANTY DOES NOT APPLY TO THE FOLLOWING
- Damage due to user negligence, accidents, dis-assembly, waterlog, misuse, abuse, alterations or vandalism.
- Improper or inadequate maintenance.
- Failure to perform required preventive maintenance
- use not following the ‘User Guide’ or any additional safety, use, or warnings included in the product materials.
- Unauthorized modification or commercial use.
- Damage in return transit.
- Unsupervised use by children under 18 years of age.
- Accidents, abuse, misuse, improper installation, problems with electrical power, acts of third parties.
- Products that are altered or repaired by anyone not authorized by HiFiGo
- usage not following instructions accompanying the Product(s)
- failure to perform required preventive maintenance,
- weather conditions, lightning, fire, water, or any acts of nature
- Furthermore, HiFiGo is not liable for incidental or consequential damages of any nature resulting from the use of this product and any liability shall not exceed the purchase price of the product.
Disclaimer of Warranties - Except as set forth herein, HiFiGo disclaims any and all warranties and representations other than those explicitly specified in this contract; any warranties, if separately provided in writing, are extended only to the Buyer whose name is shown on this invoice/contract. Warranties do not cover product damaged by external causes, including accident, abuse, misuse, improper installation, problems with electrical power, acts of third parties, Products that are altered or repaired by anyone not authorized by HiFiGo, usage not following instructions accompanying the Product(s), or failure to perform required preventive maintenance, including but not limited to backups, problems caused by use of software, parts and components not supplied by HiFiGo, weather conditions, lightning, fire, water, or any acts of nature; HiFiGo shall not be obligated to provide any warranty service or obligations unless customer has paid its invoices in full under this or any other HiFiGo invoice. HiFiGo shall have the sole discretion in determining whether the Product is covered under the warranty for labor and/or warranty for parts
Governing Law - This contract shall be governed and construed per the laws of the People's Republic of China. Buyer agrees that competent courts in the People's Republic of China shall have the exclusive jurisdiction over any legal action concerning this contract. In the event of any dispute related to this contract, the prevailing party shall be entitled to reasonable attorneys' fee and costs.
How can I Request a Warranty replacement or repair?
You must email our customer service firstname.lastname@example.org within the applicable warranty period with your order number and your specific inquiries. Please describe your problems that you encountered with as musch detail as you can.
Can I cancel an order?
Once an order is placed, you have less than 24 hours to cancel it if it is not processed yet. Once the order processes and is accepted by our warehouse, you may still request cancellation, however please know that cancellation at that stage is not guaranteed.
Can I return the products that I don’t like and get a refund?You may request to return an item in the condition it was received if you change your mind. Some items may be returned for either money back or exchange subject to the following conditions. Our policy is within 7days after receiving according to the tracking record. If 7 days after receiving have gone , unfortunately we can’t offer you a refund or exchange.
- Any item returned must be complete with all accessories, hardware, manuals or instructions, and in the same "new" condition as when it was when shipped to you. Please send us the photos or videos of it.
- Any item returned incomplete or with physical damage such as scratches etc., excessive signs of use or abuse will not be accepted for return.
- Any item returned will be evaluated upon receipt. Of course, we cannot give refunds on defective merchandise resulting from mishandling, misuse, tampering or improper use.
Can I exchange a product that I ordered?We offer exchange service if the items in following conditions. (*Except Non-refundable & Non-exchangeable items)
- Products must in “Good Condition” with no damaged in any way.
- To exchange a product, the product must be available to purchase on Hifigo.com and its price must be higher or equal to the original order amount.
- The customer will have to pay the difference in price if s/he selects a product of a higher price.
- If you have purchased any items with any discount offered by a joint promotion or other promotional activities but the discount offer has expired at the time of the exchange, the discount shall not be taken into account. Discounts offered by companies other than HiFiGo shall be dealt with per the terms and conditions of the relevant companies.
What’s the process of cancelling, returning or requesting a refund ?Please email our customer service email@example.com with your order number and the reason for the return. Please pack the product carefully.
You must return an item in the same condition as it was received. You must also include, in the same condition as it was received:
- All packaging such as boxes, bags, and tags
- Accessories such as cords and remotes
- Certificates, manuals, and warranty cards
- "Free gifts" or bonus items
- All items included in a bundle
What are the items that can be returned?
We accept the following items for return only if they are returned in the same condition in which they were received, and the items should include all items that were in the original package.
We do not accept the return of CIEM products. Defective products covered under warranty could be returned for servicing, but NOT for refund. If the returned item is used, damaged, or missing any parts, or is damaged during return shipping because it wasn't packaged correctly, we might provide a partial refund to account for the loss in the item's value.
When do I need to return the items? When is the deadline?
Items can be returned within 7 days of receipt of delivery according to the online shipping tracking record.
Where do I ship the items so that I can get a refund?
If you want to ship back to us, please contact us at firstname.lastname@example.org.
When will I receive my refund?
In most cases, we will issue your refund within six business days after receiving and checking the returned item.
How much will I receive for a refund?
You’ll be refunded the amount you paid minus 30% of the MSRP which shall be deducted as a restocking fee. For example, if the MSRP is $100, we will refund you $70. If the item is returned without its complete original packaging (original box, foam padding etc.), additional 10% packing fee will apply.
Who can I contact, if I have questions about refunds or warranties?
If you have any questions, Please contact us at email@example.com.