TOPPING A90 Discrete
【TOPPING】 TOPPING A90 Discrete | Item Overview AMP & DAC。
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30-Day Price Guarantee
30-Day Price Guarantee
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1-Year + 180-Day Warranty
1-Year + 180-Day Warranty
So that you can buy with confidence, we provide a comprehensive warranty on every product.
- Warranty Period: This product comes with a 12-month standard warranty.
- Extended Warranty: Buy from our official website and you can register directly for the extended warranty, adding a further 180 days of coverage.
For more details, see the [Warranty Policy].
After your purchase, be sure to complete [Product Registration] to activate your warranty.
Free shipping
Free shipping
- Free Shipping:
All orders ship free of charge and usually arrive within 7 days. - 30-Day Return Guarantee:
If you are not satisfied, you may return or exchange the item within 30 days of delivery. - Shipping Protection (recommended):
For extra peace of mind, we recommend adding Seel Shipping Protection at checkout. With this coverage you can file a claim directly for shipping delays, loss or damage, and receive faster handling and stronger protection.
Please note that if shipping protection is not added, compensation is handled according to the carrier's rules and the applicable conditions. We are always happy to help with logistics inquiries, but the scope of compensation follows the carrier's policy.
For full details, please see the [Shipping Policy] and [Return Policy] pages.
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Features
Features
Specifications
Specifications
| Product Specifications | Value |
|---|---|
| TOPPING A90 Discrete | |
| Model Number | 8236447531313 |
| Age Range | 5+ |
| Shipping | Free shipping |
| Delivery Time | 1–5 days |
Reviews (333)
Reviews (333)
Customer Reviews
Payment & Security
Payment methods
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Fully Discrete NFCA
As its name, A90 Discrete features fully discrete components to redesign the NFCA (Nested Feedback Composite Amplifier) module. There are 4 built-in NFCA-Discrete modules building up fully balanced structure with 39 transistors. The optimized Voltage Current hybrid feedback architecture along with UHGF (Ultra High Gain Feedback) technology provide excellent DC and AC performance. Benefiting from the new design, its output capability is stronger than ever, which allows the amp driving low impedance headphones even more effortlessly. The unparalleled distortion and noise performance are ensured because of the paralleled ultra-low noise precision matched transistors in the design.
Two Gain Settings
The A90 Discrete has two gain options, which enough to cover a wide variety of headphones: low gain to drive the IEMs with high sensitivity, and high gain to drive full-sized over-ears. Combined with the 0.2uVrms ultra-low noise, even sensitive IEMs will not suffer from any noise.
Ground Loop Noise Terminator
Ground loop noise may be encountered when multiple devices are used in combination. Topping A90 Discrete adds a GND/LIFT switch to solve this problem. When in normal use, set it to GND; and when ground loop noise is encountered, switch it to LIFT. Then the ground loop noise is eliminated.
A Headphone Amp, also a Preamp
The A90 Discrete is not only able to drive the headphones but also served as a preamp. When it is in preamp mode, you can get the same high performance as the headphone amp mode, and the 20ohm SE and 40ohm balanced output impedance are widely suitable for various power amplifiers. A90 Discrete can not only switch between the headphone amp (only output from the headphone jack) and the preamp (only output from RCA and XLR), but also support the output from all at the same time. The full-featured remote control makes it more convenient for you.
Customize Volume Control
A90 Discrete characterizes a R2R volume control composed of relays and resistor networks, which brings the advantages of precise Control, longevity, complete channel balanced and remote control. According to the customized settings, a safe volume can beset to avoid sudden loud sound after power on/input switch. A90 Discrete can also set to memorizes both the output volume and the input volume.
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