[GRADE B] TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black

-12%
Refurbished product - Grade B

To celebrate its 15th anniversary, Topping unveils a high-performance DAC / Headphone Amplifier: the DX9. In addition to its very high performance, Topping has given it a meticulous aesthetic with an innovative and unique design. The DX9 incorporates top-quality components, including an AKM AK4499EQ DAC chip. This enables the Topping DX9 to achieve a dynamic range of 131dB and a THD+N of less than 0.0007%.

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Reference : 20218
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1 299,00 €tax incl.

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957,50 € tax excl.
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Shipping date: 10-12-2024.

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2 Years warranty

Accessories for this product

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Refurbished product - Grade B

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TOPPING DX9

DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black

TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black

To celebrate its 15th anniversary, Topping unveils a high-performance DAC / Headphone Amplifier: the DX9. In addition to its very high performance, Topping has given it a meticulous aesthetic with an innovative and unique design. The DX9 incorporates top-quality components, including an AKM AK4499EQ DAC chip. This DAC chip delivers performance equivalent to the integration of no less than two AK4499EXs. In fact, it enables the Topping DX9 to achieve a dynamic range of 131dB and a THD+N of less than 0.0007%. An AK4118AEQ chip handles the reception of optical/SPDIF signals, for very low jitter. On the headphone amplifier side, the DX9 incorporates a discrete NFCA amplifier circuit with 6 modules each comprising 39 transistors. The power supply stage is separate for the DAC and headphone amplifier parts, producing a pure, stable power supply. In terms of aesthetics, the curved case and the two screens with Topping's own Aurora UI interface provide the best possible user experience. In addition, a transparent top plate engraved with Topping's 15-year anniversary logo gives a view of the DX9's perfect circuit design.

A high-performance chipset

Topping has integrated the rare and legendary AK4499EQ 4-channel DAC chip into the DX9. This chip alone achieves the performance equivalent of two AK4499EX chips, with a THD+N of less than 0.00007% and a dynamic range of 131dB. It enables the DX9 to support sampling rates up to PCM 32bit 768kHz and native DSD up to DSD512.
The AK4499EQ DAC chip is coupled to an AK4118AEQ optical/SPDIF signal reception chip for perfect signal reception on coaxial SPDIF, Toslink optical and AES/EBU inputs. Finally, a CPLD works on the clock signal and digital signal optimization to obtain a perfect level of stability and purity.

TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black
TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black
TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black

Bluetooth 5.1 QCC5125 reception chip ( aptX, aptX HD, aptX Adaptative, LDAC)

The ultra-high-performance Qualcomm QCC5125 Bluetooth 5.1 chip enables the Topping DX9 to work with high-quality wireless codecs: aptX, aptX HD, aptX Adaptative and LDAC. Qualcomm's QCC2551 is a 32bit Low Energy chip (Bluetooth LE standard).

TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black

Discrete component headphone amplifier circuitry (NFCA)

Topping's DX9 headphone amplifier circuit is based on 6 discrete component modules, each consisting of 6 NFCA channels with 39 transistors. This circuit surpasses all other discrete component headphone amplifier circuits on the market. In fact, each module communicates with its peers for exceptional overall performance. The amplification circuit uses a balanced and unbalanced interface independently, enabling it to greatly reduce noise and distortion. Moreover, this makes it capable of driving all types of headphones on the market with a power of 2x 7000mW @32Ω and a THD+N of less than 0.00009%

TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black
TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black

Hybrid volume control circuit

The volume control consists of a network of resistors coupled to various relays for an unrivalled degree of precision. It also optimizes SNR and noise levels at low volumes. The relay circuit is used in conjunction with a digital control interface to reduce distortion and protect the DX9 from potential interference.

Sophisticated aesthetics

The DX9's rounded curves give it an outstanding aesthetic. Coupled with two color screens and its Aurora UI interface, the user experience is made exceptional. To top it all off, a transparent plate on the top of the device allows you to observe the DX9's internal circuitry. This plate also features Topping's 15th anniversary lettering.

TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black

TOPPING DX9 overview 

TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black
1Ignition button
2Dual screen
3Multifunction knob
46.35mm jack headphone output
5Balanced 4.4mm jack headphone output
6XLR 4-pin balanced headphone output
7XLR stereo preout output
8RCA stereo preout output
9RCA stereo line output
10XLR stereo line output
11I2S input via HDMI
122x Entrées optiques Toslink
132x Toslink optical inputs
14Bluetooth antenna
15USB-B input
16AES/EBU input
17Trigger 12V
18IEC power supply / Fuse / Power switch

Technical characteristics

Specifications
Product typeDAC
Headphone amplifier
Inputs1x USB-B
2x SPDIF coaxial
2x Optical Toslink
1x AES/EBU
1x I2S via HDMI
Bluetooth
OutputsXLR and RCA stereo line outputs
XLR and RCA stereo preout outputs

1x 6.35mm jack headphone output
1x 4.4mm balanced jack headphone output
1x 4-pin XRL balanced headphone output
DAC ChipAK4499EQ
Trigger 12V
DX9 DAC (Line output / USB in @96kHz)
THD+N @ 1kHz (A-wt)RCA : < 0.00008%
XLR : < 0.00007%
THD @20-20kHz 90kBwRCA : < 0.00015%
XLR : < 0.00015%
SNR @1kHz (A-wt)RCA : 127dB
XLR : 131dB
Dynamic rangeRCA : 127dB
XLR : 131dB
Frequency responseRCA : 20Hz-20kHz (±0.2dB) / 20Hz-40kHz (±0.6dB)
XLR : 20Hz-20kHz (±0.2dB) / 20Hz-40kHz (±0.6dB)
Output levelRCA : 2.1Vrms @0dBFS
XLR : 4.2Vrms @0dBFS
Noise (A-wt)RCA : < 1.0uVrms
XLR : <1.3uVrms
Channel crosstalkRCA : -125dB @1kHz
XLR : -125dB @1kHz
Channel balanceRCA : 0.3dB
XLR : 0.3dB
Output impedanceRCA : 50Ω
XLR : 100Ω
Supported sample ratesPCM 32bit 768kHz, DSD native up to DSD512
DX9 HEADPHONE AMPLIFIER (USB IN @96KHZ)
THD+N @ 1kHz (A-wt)Unbalanced output: < 0.00010% @ output=550mW (32Ω) / < 0.00008% @ output=60mW (300Ω)
Balanced outputs: < 0.00007% @ output=550mW (32Ω) / < 0.00007% @ output=60mW (300Ω)
THD @20-20kHz 90kBwUnbalanced output: < 0.00060% @ output=550mW (32Ω) / < 0.00030% @ output=60mW (300Ω)
Balanced outputs: < 0.00050% @ output=550mW (32Ω) / < 0.00030% @ output=60mW (300Ω)
SNR @ Max out 1kHz (A-wt)Unbalanced output: 131dB @ 1kHz
Balanced outputs: 132dB @ 1kHz
Dynamic rangeUnbalanced output: 131dB @ 1kHz
Balanced outputs: 132dB @ 1kHz
Frequency responseUnbalanced output: 20Hz-20kHz (±0.2dB) / 20Hz-40kHz (±0.6dB)
Balanced outputs: 20Hz-20kHz (±0.2dB) / 20Hz-40kHz (±0.6dB)
Output levelUnbalanced output: 12Vpp @ G=L / 24Vpp @ G=H
Balanced outputs: 12Vpp @ G=L / 47Vpp @ G=H
Noise (A-wt)Unbalanced output: < 1.6uVrms @ G=L / < 2.4uVrms @ G=H
Balanced outputs: < 1.3uVrms @ G=L / < 4.2uVrms @ G=H
Channel crosstalkUnbalanced output: -98dB @ 1kHz
Balanced outputs: 121dB @ 1kHz
GainUnbalanced output: G=L 12.5dB (Vrms/FS) / G=H 18.5dB (Vrms/FS)
Balanced outputs: G=L 12.5dB (Vrms/FS) / G=H 24.5dB (Vrms/FS)
Channel balanceUnbalanced output: 0.3dB
Balanced outputs: 0.3dB
Output impedanceUnbalanced output: < 0.1Ω
Balanced outputs: < 0.1Ω
Output powerUnbalanced output:
2x 3300mW @16Ω THD+N<1%
2x 2100mW @32Ω THD+N<1%
2x 1190mW @64Ω THD+N<1%
2x 240mW @300Ω THD+N<1%


Balanced outputs :
2x 10000mW @16Ω THD+N<1%
2x 7080mW @32Ω THD+N<1%
2x 4250mW @64Ω THD+N<1%
2x 950mW @300Ω THD+N<1%
2x 460mW @300Ω THD+N<1%
Load impedanceUnbalanced output: > 8Ω
Balanced outputs: 100Ω
General
Dimensions34x23x6cm
Net weight2,75kg
ColorBlack
Package1x DAC Headphone amplifier TOPPING DX9
1x Remote control
1x USB-A to USB-B cable
1x Bluetooth antenna
1x 6.35mm jack to 3.5mm jack adapter
1x Power cable
TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black
 
Data sheet
InputUSB
InputOptical
InputI2S via HDMI
InputSPDIF
InputBluetooth
InputAES/EBU
OutputXLR
OutputJack 4.4mm
OutputRCA
OutputJack 6.35mm
DAC / ADC ChipAK4499
Max sampling rateDSD512
Max sampling rate768kHz
ColorBlack
ClassN/A
NetworkingNo
Remote ControlYes
Refurbished GradeGrade B
 
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[GRADE B] TOPPING DX9 DAC AK4499EQ Headphone Amplifier NFCA Bluetooth 5.1 AptX LDAC 32bit 768kHz DSD512 Black
Refurbished product - Grade B To celebrate its 15th anniversary, Topping unveils a high-performance DAC / Headphone Amplifier: the DX9. In...

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