TOPPING DX7 Pro+: Bluetooth5.1 ES9038PRO Hi-Res Headphone Desktop Decoder Amplifier

Topping has released the TOPPING DX7 Pro+, an all-in-one desktop headphone amplifier.

Features

4-PIN-XLR, 4.4mm and 6.35mm output jacks
Plug and play
Flagship DAC chip
Brand-new I/V conversion circuit
All-new design
Built-in NFCA Headphone AMP

Specifications

Max playback support
- USB: 32-bit/768kHz PCM, DSD512 Native, DSD256 (DoP)
- COAX/OPT/AES IN: 24-bit/192kHz PCM, DSD64 (DoP)
- IIS IN: 32-bit/768kHz PCM, DSD512 Native, DSD256 (DoP)
- BT IN: LDAC, AAC, SBC, aptX, aptX LL, aptX HD, aptX Adaptive
DAC specs
- RCA：
  - THD+N @1kHz (A-wt): <0.00008%
  - THD @20-20kHz 90kBW: <0.0008%
  - SNR @ 1kHz (A-wt): 127dB
  - Dynamic range @ 1kHz (A-wt): 127dB
  - Frequency response: 20H-20kHz (±0.1dB), 20Hz-40kHz (±0.3dB)
  - Output level: 2.1Vrms@0dBFS
  - Noise @A-wt: <1.0uVrms
  - Channel crosstalk: -126dB@1kHz
  - Channel balance: 0.3dB
  - Output impedance: 100Ω
- XLR：
  - THD+N @1kHz (A-wt): <0.00006%
  - THD @20-20kHz 90kBW: <0.0003%
  - SNR @ 1kHz (A-wt): 133dB
  - Dynamic range @ 1kHz (A-wt): 133dB
  - Frequency response: 20H-20kHz (±0.1dB), 20Hz-40kHz (±0.3dB)
  - Output level: 4.2Vrms@0dBFS
  - Noise @A-wt: <1.0uVrms
  - Channel crosstalk: -139dB@1kHz
  - Channel balance: 0.3dB
  - Output impedance: 100Ω
Headphone amp specs
- 6.35mm headphone jack：
  - THD+N @1kHz (A-wt): <0.00009% @150mW (32Ω), <0.00007% @ 15mW (300Ω)
  - THD @20-20kHz 90kBW: <0.0006 @150mW (32Ω), <0.0004% @15mW (300Ω)
  - SNR @max out 1kHz (A-wt): 127dB @1kHz
  - Dynamic range @1kHz (A-wt): 127dB @1kHz
  - Frequency response: 20Hz-20kHz (±0.1dB), 20Hz-40kHz (±0.3dB)
  - Output level: 6.2Vpp (low gain), 27.8Vpp (high gain)
  - Noise @A-wt: <1.4uVrms (low gain), <2.5uVrms (high gain)
  - Channel crosstalk: -120dB @1kHz
  - Gain: 6.9dB (low gain), 20dB (high gain)
  - Channel balance: 0.3dB
  - Output impedance: <0.1Ω
- Output power：
  - 1900mW x2 @32Ω THD+N<1%
  - 1350mW x2@64Ω THD+N<1%
  - 320mW x2@300Ω THD+N<1%
  - Load impedance: >8Ω

4-PIN-XLR, 4.4mm and 6.35mm output jacks

DX7 Pro+ has 3 output headphone jacks of 4-PIN-XLR, 4.4mm and 6.35mm to meet different usages. Besides, with the help of 2 gain setting, DX7 Pro+ could reach even wider adaption of different headphones.

Plug and play

DX7 Pro+ has a wide range of compatibility: Windows 10 and above, MAC,Linux, IOS, Android can be plug and play. DX7 Pro+ uses 2nd generation 8 coreXMOS XU208, USB supports up to PCM32bit768kHz and DSD512 native.

Flagship DAC chip

DX7 Pro+ uses ESS SABRE ES9038PRO, with 32bit Hyper-stream architecture, achieves ultra-high performance in the audio field. Each channel of the DX7 Pro+ will be arranged in parallel by 4 conventionall balanced channels. This makes the performance of DX7 Pro+ even better.

Brand-new I/V conversion circuit

TOPPING designed brand-new I/V conversion circuit with better audio reproduction. The unique circuit design provides lower distortion and lower noise while occupying less space.

All-new design

TOPPING has redesigned the DX7 Pro+ inside and out. Not only will it feature TOPPING’s ultra-clean NFCA module and updates to the audio circuit, but the chassis design is based on the Red Dot Award-winning design of the TOPPING DX5. The DX7 Pro+ outpaces its predecessor in category after category. It uses the most up-to-date Bluetooth 5.1 chip with LDAC support. It also has 70% better noise performance, 100% stronger output power, and 99% lower output impedance.

Built-in NFCA Headphone AMP

The new DX7 Pro+ has the NFCA circuit optimized for this unit, giving the ultra low noise and distortion. It pairs with high sensitivity IEMs and power hungry high impedance headphones nicely.