Topping's A90D Discrete Headphone Amp is a High Performance Fully Discrete Balanced Headphone Amplifier. The A90 Discrete uses fully discrete components to redesign the NFCA (Nested Feedback Composite Amplifier) module.

4 built in NFCA discrete modules which each uses 39 transistors built up for a fully balanced structure. The optimised voltage current hybrid feedback architecture along with UHGF (Ultra High Gain Feedback) technology provides excellent Dc and AC performance. Benefiting from the new design, the output capability is stronger than ever, which allows the amplifier driving low impedance headphones with ease. The paralleled ultra low noise precision matched transistors in the design ensure the unparalleled distortion and noise performance.

If ground loops are encountered then the A90D has you covered with a switch to lift the ground from the equipment but it is set to GND when in normal use, it has also incorporated a 12volt trigger to trigger any external products like amplifiers

The A90D has three headphones outputs for all your headphone connection needs in 4 pin XLR Balanced, 4.4 mm Balanced and 6.3 mm single ended, the A90D also has two different gains settings to apart to various sensitive headphones Low Gain 0db and High Gain 9.5db for single ended and Low Gain 6db and High Gain 15.5db for balanced output with these settings we are sure you will find one that will be right for your inear or full size headphones.

The Topping A90D can also be used as a preamp and when it is in preamp mode the XLR or RCA outputs can be use, the single end has a impedance of 20ohms and the balanced XLR 40 ohms which are widely used you ca also add the EXT90 to give you more inputs as a preamp if needed.

Topping A90D Discrete Headphone Amplifier

£599.99
£599.99
Colour: Black

Topping's A90D Discrete Headphone Amp is a High Performance Fully Discrete Balanced Headphone Amplifier. The A90 Discrete uses fully discrete components to redesign the NFCA (Nested Feedback Composite Amplifier) module.

4 built in NFCA discrete modules which each uses 39 transistors built up for a fully balanced structure. The optimised voltage current hybrid feedback architecture along with UHGF (Ultra High Gain Feedback) technology provides excellent Dc and AC performance. Benefiting from the new design, the output capability is stronger than ever, which allows the amplifier driving low impedance headphones with ease. The paralleled ultra low noise precision matched transistors in the design ensure the unparalleled distortion and noise performance.

If ground loops are encountered then the A90D has you covered with a switch to lift the ground from the equipment but it is set to GND when in normal use, it has also incorporated a 12volt trigger to trigger any external products like amplifiers

The A90D has three headphones outputs for all your headphone connection needs in 4 pin XLR Balanced, 4.4 mm Balanced and 6.3 mm single ended, the A90D also has two different gains settings to apart to various sensitive headphones Low Gain 0db and High Gain 9.5db for single ended and Low Gain 6db and High Gain 15.5db for balanced output with these settings we are sure you will find one that will be right for your inear or full size headphones.

The Topping A90D can also be used as a preamp and when it is in preamp mode the XLR or RCA outputs can be use, the single end has a impedance of 20ohms and the balanced XLR 40 ohms which are widely used you ca also add the EXT90 to give you more inputs as a preamp if needed.

Specification Details
Form Desktop DAC
Frequency Response 20Hz-40kHz
PCM Decoding 32Bit/384kHz (USB), 24Bit/192kHz (COAX/Optical)
DSD Decoding DSD256 (Native over USB), DSD64 (DoP over COAX/Optical)
Inputs USB-B (cable included), Optical, COAX
Outputs 3 pin XLR Balanced, RCA Single Ended
Dimensions 17.4 x 13.8 x 4.5 cm
Weight 740g
Remote Control Included
  • TOPPING A90D Fully Balanced Headphone Amplifier
  • Remote Control
  • Power Cable
  • 6.36 to 3.5mm adapter
  • Warranty card

Item Ships from our UK Warehouse - Typical delivery is 3 - 5 business days for mainland UK.

OTIC can be contacted for updates.

UK ORDERS - Free shipping on all baskets over £250.

We offer a refund on any unused items, subject to our returns policy.

Click here to view all delivery & returns info - including shipping, tax and duty information for International Customers.

Products purchased from OTIC Audio are supplied with a manufacturer warranty that is specified on the product page on our website. Most products come with a 1Y manufacturer warranty (or 3 months for B-grade, open box, refurbished, ex-demo, and second-hand items).

The manufacturer's warranties are limited to physical defects in the materials, parts, and workmanship used in making the product. Abnormal conditions, deliberate abuse, and damage due to accidents, operator's error, or unauthorized service attempts are excluded from any warranty claims.

Faulty goods returned under the manufacturer's warranty are to be returned to OTIC Audio at the cost of the customer. OTIC Audio will cover the cost of shipping the repaired or replacement product back to the customer.

Topping A90D Discrete Headphone Amplifier

Topping A90D Discrete Headphone Amplifier

£599.99

Topping A90D Discrete Headphone Amplifier

£599.99
Colour: Black

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