TOPPING D900
Ultra-Flagship DAC
- Self-Developed PSRM 1-Bit Decoding Architecture
- Proprietary Discrete I/V Conversion Circuit
- Ultra-Low Jitter with High-Performance CPLD Processing
- Full-Spectrum Input Support Including Bluetooth 5.1 LDAC
- Ten-Band PEQ with Customizable Sound Profiles
- Premium Build with Intuitive Full-Color Display and Remote
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Estimated Delivery:Oct 18 - Oct 22
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Free Standard Shipping & Returns On all orders. Check if your country applies.

TOPPING D900
Self-Developed PSRM Technology
At the core of the D900 lies TOPPING’s proprietary PSRM (Precision Switching Resistor Matrix) decoding system, a fully discrete 1-bit architecture that redefines digital audio reproduction. It consists of an ultra-high-speed switching logic array paired with precision voltage references, working together to achieve remarkable decoding speed while preserving the purity of the original audio signal. The design emphasizes not only speed and accuracy, but also control over power supply interference. A purely resistive, noise-free reference voltage design ensures minimal distortion and noise, helping the D900 reach harmonic distortion levels below -140dB and a signal-to-noise ratio as high as 131dB.
Proprietary Discrete I/V Conversion
To complement the PSRM decoding, the D900 features a newly designed discrete I/V conversion circuit. This stage uses carefully selected low-distortion operational amplifiers and ultra-low noise discrete components to maintain signal fidelity from digital to analog. Every component and layout detail is optimized to retain dynamics, transient response, and tonal accuracy, allowing the D900 to present a highly immersive and lifelike sound that stands apart from conventional DACs.
Crafted for Listening
Beyond its internal architecture, the D900 reflects TOPPING’s deep-rooted philosophy in music-first design. Its clean, precise industrial aesthetic echoes the clarity and structure of the audio it reproduces. The chassis, machined from high-quality materials with exacting tolerances, reinforces the product’s sense of refinement and reliability. The minimalist exterior houses a powerful core, designed not for show—but for serious listening.
Wide-Ranging Digital Compatibility
The D900 is engineered to serve as the centerpiece of any high-end digital audio chain. It accepts a wide range of inputs, including USB-C, USB-B, coaxial, optical, AES/EBU, and I²S via HDMI, ensuring seamless integration with computers, streamers, CD players, and more. It also supports Bluetooth 5.1 with advanced codecs such as LDAC, aptX-HD, and AAC, delivering wireless performance that exceeds traditional CD quality.
True Preamp Versatility
In addition to being a flagship DAC, the D900 features a dedicated preamplifier output stage. It includes high-precision volume control in 0.5dB steps, allowing for subtle and smooth volume adjustments when used with power amplifiers or active speakers. The result is a highly controlled, nuanced performance across both headphone and speaker systems, with the versatility to fit any setup.
Ultra-Low Jitter Performance
Clock precision is critical in digital audio, and the D900 excels with its use of a high-performance CPLD to process and refine incoming digital signals. This design dramatically reduces jitter, with measurements as low as -157dB, outperforming many of the most respected DACs in the market. The result is a sound that is not only clean, but stable and deeply transparent.
Elegant and Intuitive Interface
The front of the D900 features a vivid 2-inch full-color display, delivering real-time playback information with clarity and elegance. To the right of the screen, three responsive touch buttons and a precision rotary knob enable fast, tactile control. Users can switch between different display modes—including playback info, FFT spectrum, or VU meter—and choose from nine background colors to match their personal aesthetic.
Premium Wireless Control
Included with the D900 is a premium remote control machined from a solid block of high-strength aluminum alloy. Its sleek, sandblasted surface and perfectly weighted design complement the DAC itself, offering smooth and responsive control from a distance. It is not only a practical accessory, but an extension of the product’s craftsmanship.
Fully Customizable PEQ Tuning
For users who want precise tonal shaping, the D900 introduces a new ten-band parametric EQ system. Through desktop software, users can adjust the frequency, gain, and bandwidth of each band, import target curves, and store multiple user profiles. Whether for technical compensation or personal preference, the PEQ function offers a powerful toolset for tailoring the D900’s output to your liking.
Flagship Pairing Potential
The D900 is built to shine on its own, but when paired with the A900 ultra-flagship headphone amplifier, it becomes the foundation of a truly elite listening system. With outstanding dynamic capability and pristine resolution, this flagship duo is designed to take full advantage of the highest-resolution recordings and the most demanding headphones—placing you at the heart of the music.
Free Standard Shipping
We Offer FREE Standard Shipping on all orders to Most of the World*
1 Year Warranty
Your Headphones, IEM's, AMPs and DACs, are covered by a warranty against factory defects.
Authentic Products
HiFiXAudio is an official distributor of the brands we carry. All products are genuine.
FAQ's
How long does it take to process an order?
For in-stock products, your order is expected to be shipped within 3 working days. Customized items and pre-orders take a longer time (do check in with our staff for more information). On normal non-sale days, once your parcel is shipped:
- For Standard Shipping, it takes about 2-3 weeks for items to be delivered after it is shipped. For some countries, it might take up to 1-2 months, depending on your country and its custom procedure. The duration for transit is beyond our control. Mechlands does not arrange refunds for such cases. Please consider an upgrade to DHL Express or keep the waiting time in mind.
- For Express Shipping, it takes about 3-10 days for items to be delivered after it is shipped.
Note:
Shipping methods and period might be affected and changed due to festive seasons, pandemic circumstances or other unforeseen circumstances.
What kind of shipping do you offer?
We have two shipping methods - Standard Shipping and Express Shipping.
Standard Shipping is free for most countries/areas.
Express Shipping via DHL Express or FedEx is 10-40USD (excluding tax) depending on your country. If your order is over 500USD, DHL Express Shipping is free*.
*KiiBOOM keyboards are not eligible for free shipping.
Shipping fees exclude import taxes or processing fees that may be applicable for your country. Mechlands is not responsible for such fees. Should you refuse to pay the tax/customs fees, shipping fees will still be deducted from the amount paid for the two-way freight charges. The cost of the freight charges may be more than the amount reflected on your order due to tax and other miscellaneous fees.
Standard Shipping via YunExpress is a tax-inclusive option for some countries. However, Mechlands will not be responsible for additional administrative or handling fees charged by your local courier company or customs. Please kindly check this with your local customs.
For certain remote areas, there may be additional charges via Express Shipping. We will contact you if there is a need to make additional payments. Should you have any other queries regarding shipments, please contact us before placing an order.
Who does pay for the import tax/custom fees?
Customers have to bear any form of custom/import/processing fees that are applicable for your parcel.
If the custom fees and the delivery of the parcel are rejected by the recipient, the shipping cost still needs to be paid. Mechlands only arranges the refund of the order amount after deducting the shipping cost incurred.
Which countries do you ship to?
We are generally able to ship to most countries via Express Shipping, and many countries via Standard Shipping. Shipping methods may alter due to different situations. After proceeding to Checkout, the available shipping method(s) and cost will be stated before the payment page.
Note:
Note: For countries and areas of Africa, Alaska, Argentina, Canada, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few, we can only do Express Shipping. This may be subjected to changes due to unpredictable events such as pandemic, war, and etc.
How do I cancel order?
Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order.
As our Support Team may not be available during non-working days and weekends, please place your order wisely as support cannot be guaranteed for such requests.
Should you really need to cancel or/and modify your order after purchase, please contact us via our support email (support@mechlands.com) or website chat. We will help you with the changes if that could be done.
For other queries, the fastest way to contact us is via our website or Discord
Do I get tracking details for my order?
After placing an order, you will receive the order confirmation email. After your order is shipped, 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 if i dislike the product once it arrives?
On the ground of disliking a product, you may return any non-customized and non-sales product that is sealed, within the 15 days upon receiving it. To be eligible for a return, your item must be unused and in the same condition that you received it. It also must be in the original packaging. Customized and sales products, accessories, or spare parts are excluded from the 15-day return policy. The shipping fee, handling fees, or any form of tax caused by return will NOT be refunded.
My product came with some kind of factory issue
For factory defective items within the first 30 days upon delivery, you would need to provide a solid proof. All customers are strongly advised to take an unboxing video of their parcel and packaging. If the item is defective due to manufacturing issues instead of unguided manual modifying/disassembling, Epomaker will provide a shipping label and reship the replacement unit or refund to you after receiving the return parcel.
Who applies to your free 15/30 Days Return Policy program?
*Our 15-day & 30-day warranty applies only to the following countries Canada, United States, Netherlands, Poland, United Kingdom, Czech Republic, Australia, Brazil, Saudi Arabia, Spain, Ukraine, France, Mexico, Italy, Chile, South Korea, Japan, Switzerland, United Arab Emirates, Portugal, Israel, Russia, Belgium and Germany. Customers in other countries may incur additional fees for warranty service.