{"id":175009,"date":"2023-11-13T16:38:08","date_gmt":"2023-11-13T16:38:08","guid":{"rendered":"https:\/\/www.techweekmag.com\/?p=175009"},"modified":"2023-11-13T16:38:08","modified_gmt":"2023-11-13T16:38:08","slug":"topping-launches-dx9-feature-packed-preamplifier","status":"publish","type":"post","link":"https:\/\/www.stereoindex.com\/tech\/hi-fi\/topping-launches-dx9-feature-packed-preamplifier\/","title":{"rendered":"Topping launches DX9 feature-packed preamplifier"},"content":{"rendered":"

To celebrate its 15th anniversary,\u00a0Topping<\/b>\u00a0introduces the DX9, a high-performance DAC\/headphone amplifier\u00a0.\u00a0<\/b>In addition to very high performance, Topping has given it a carefully considered aesthetic with an innovative and unique design.\u00a0The DX9 uses high quality components, including the AKM AK4499EQ DAC chip.<\/p>\n

This DAC chip is equivalent in performance to integrating at least two AK4499EX.\u00a0In fact, it allows the Topping DX9 to achieve a dynamic range of 131 dB and a THD+N of less than 0.0007%.\u00a0The AK4118AEQ chip provides optical\/SPDIF signal reception with very low jitter.\u00a0As for the headphone amplifier, the DX9 uses a discrete NFCA amplifier circuit, consisting of 6 modules of 39 transistors each.<\/p>\n

The power stage is separated for the DAC and headphone amplifier, providing clean and stable power.\u00a0In terms of aesthetics, the curved body and two screens with Topping’s proprietary Aurora UI provide the best user experience.\u00a0Additionally, a clear top panel with an engraved Topping 15th Anniversary logo reveals the DX9’s advanced circuitry.<\/p>\n

\"Topping
Topping has integrated the rare and legendary AK4499EQ 4-channel DAC chip into the DX9.<\/figcaption><\/figure>\n

Topping has integrated the rare and legendary AK4499EQ 4-channel DAC chip into the DX9.\u00a0This single chip provides performance equivalent to two AK4499EX chips, with a THD+N of less than 0.00007% and a dynamic range of 131 dB.\u00a0It allows DX9 to support sample rates up to PCM 32-bit 768 kHz and native DSD up to DSD512.<\/p>\n

\"Topping
Topping DX9 in a silver coating<\/figcaption><\/figure>\n

The AK4499EQ DAC chip is paired with the AK4118AEQ optical\/SPDIF signal receiving chip, which provides ideal signal reception on coaxial SPDIF, optical Toslink and AES\/EBU inputs.\u00a0Finally, CPLD works to optimize the clock and digital signal to achieve ideal levels of stability and purity.<\/p>\n

\"Topping<\/p>\n

The Topping DX9 headphone amplifier circuit is built around 6 discrete component modules, each consisting of 6 NFCA channels with 39 transistors.\u00a0This circuit outperforms all other discrete component headphone amplifier circuits on the market.\u00a0In fact, each module interacts with its counterparts to provide exceptional overall performance.\u00a0The amplification circuit uses a balanced and unbalanced interface independently of each other, which allows it to significantly reduce noise and distortion.\u00a0Moreover, thanks to this, the amplifier is capable of driving all types of headphones on the market, with a power of 2x 7000 mW @32\u03a9 and a THD+N of less than 0.00009%.<\/p>\n

\"Topping
Topping DX9 ultra-high-performance Qualcomm QCC5125 Bluetooth 5.1 chip allows Topping DX9 to work with high-quality wireless codecs<\/figcaption><\/figure>\n

The DX9’s rounded curves give it outstanding aesthetics.\u00a0Combined with two color screens and the Aurora UI, the user experience is exceptional.\u00a0To top it all off, a transparent plate on the top of the device allows you to see the DX9’s internal circuitry.\u00a0This plate also features Topping to commemorate the company’s 15th anniversary.<\/p>\n

\"Topping<\/p>\n

The ultra-high-performance Qualcomm QCC5125 Bluetooth 5.1 chip allows Topping DX9 to work with high-quality wireless codecs: aptX, aptX HD, aptX Adaptative and LDAC.\u00a0Qualcomm QCC2551 – 32-bit Low Energy chip (Bluetooth LE standard).<\/p>\n

\"Topping<\/p>\n

Topping DX9 Features:<\/b><\/h3>\n