littlemart Posted June 9, 2020 Posted June 9, 2020 Topping Amplifiers A90 High End Balance Headphone Amplifier The TOPPING A90 Headphone Amp is the companion for the highly reviewed TOPPING D90 DAC. It is already receiving rave reviews on Audio Science Review. The A90 is an ultra high-performance headphone amp that can also work as a pre-amp. It comes with three gain settings and has great performance numbers including <0.00006% THD+N, 145dB DNR, <0.2uVrms Noise, <0.1 ohm output impedance, and 7200mW x 2 max output power. The A90 comes equipped with NFCA modules (Nested Feedback Composite Amplifier), which along with ultra high-gain feedback technology provide excellent AC and DC performance. High output current capability of the A90 allows it to drive low impedance headphones with ease. Furthermore, ultra low noise of 0.2uV and high dynamic range of 145dB drive the most sensitive IEMs without producing any audible noise or dark background. For outputs, the A90 comes with a 4-pin XLR, a 4.4mm Balanced, and a 6.35mm Single Ended port. The Single Ended 25V pp with Balanced 49V pp high output voltage along with high output current and less than 0.1 ohm output impedance, A90 is compatible with a wide range of headphones. It also comes with the three-step gain setting and a wide variety of sensitivity settings that allow the amp to drive sensitive IEMs to power demanding headphones. Being equipped with NFCA modules, A90 can also work as a pre-amp. In pre-amp mode, the 20ohm single ended output and the 40 ohm balanced output impedance make it easily compatible with various power amps. You can also connect the A90 with the D90 DAC in pre-amp mode to drive active speakers and create a high-performing sound system. Selling at $725 $699(Promo) Perfect Stack with D90 MQA PA3 Ideal for driving bookshelf speakers, PA3 is a compact power amplifier equipped with ST’s class-D TDA7498E amp chip. It delivers 80 watts per channel at a 4-ohm load—enough to drive 10-inch speakers—and has a curved, screwless front panel design that looks sleek in any setup. Additional components include an ALPS potentiometer, EPCOS film capacitors, a Nichicon hi-fi capacitor, and an OMRON relay. Selling at $145 TP22 - Using Tripath TK2050 - 30W*2 output power - Supply 2 way RCA input Selling at $140 Topping TP32EX A multi-function amplifier with excellent sound, meeting the need of users who need a integrated amplifier. -Using Tripath TK2050, supporting 50W*2 output power. -Built-in 24bit 192k coaxial DAC -24bit 96k / 16bit 192k USB DAC -Built-in Headphone-AMP -USB support auto On/Off. -Come with a remote control Selling at $230 $180 Topping NX1A The Topping NX1A (NX1 upgraded version) has been designed for MP3/MP4/mobile phone/computer that can not get best effect of high impedance from the headset due to the low power. Selling at $75 $60 Topping NX3 Following the very popular NX1 portable amplifier, Topping launch another value for money portable amplifier NX3. Internal amplifying chip using TI TPA6120A2. - Come in Black/Silver Color Selling at $110 $95 Topping NX4 USB ES9038Q2M DSD DAC Amplifier It an excellent pairing for laptops and smartphones and perhaps DSP players, the Topping NX4 DSD is a compact DAC/amp loaded with impressive specs. It’s equipped with a popular Sabre ES9038Q2 DAC, along with an XU208 USB bridge, and it can supports some of the highest-resolution audio—including 32 bit/768 kHz, DSD256 (DoP), and DSD512 (native). It comes in Black/Sliver in colour Selling at $199 Topping NX5 AD8610+BUF634 high performance combination Every sound channel of Topping NX5 use low noise HIFI Operational amplifier AD8610 of American ADI as Signal amplifier. Every channel use one piece of BUF634 as output buffer of output circuit. Come in Black/Silver Color Selling at $170 $135 (promo) Topping A30 - Desktop Amplifier Overview: - Two outputs for different impedance of the headphone: 3.5MM and 6.35MM headphone port, can be used for a variety of headphones and earbuds. - Two kinds of operating voltage mode and three kinds of gain (0dB / 9dB /18dB) selection mode. - A30 uses the high-performance TI HIFI chip OPA161, OPA2134 (changeable) and TPA6120. - Maximum output power of A30 can reach up to 1551mW * 2. - Aluminum body, each part is through high automation, high-precision machining creating (Laser engraving). - Power by a special customized three-way high-performance linear power supply Most competing products use 1x15V or etc adapter to the amplifier, this 1x15V will be convert inside the amplifier and cause noise and interference. But we use linear power adapter to provide 2x15V and 1x8V to A30, which help A30 avoid these problem. 2x15V used for high fidelity headphone amplifier circuit. 1x8V used for MCU, LED and relay. Less noise, less interference. - Using Hi-fi grade NEC relay, WIMA capacitance, Nichicon FW series HIFI electrolytic capacitor, ALPS potentiometer etc Selling at $145 Come in Silver ------------------------------- Mini Desktop Hi-Fi Acrylic Rack (New) The mini acrylic rack not only well organize your equipment on your desk and looks even more neater then before. Good to hold up to 3 equipment eg (mini amplifier, mini headphone amp, mini dac). Dimension: Size: External <17.2cm(L) X 15.8cm(D) X 11.2cm(H)> Size: Internal <(13.2cm(L) X 11.8cm (D) X 4.3cm x2 (H)> Max Weight: 3KG (each layer 1KG) Selling at $50
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