iBasso D17 Atheris
€1,699.00*
Due to the public holiday, the next shipment will take place on Monday, October 6, 2025., delivery time: 1-3 days
Product number:
HL02728
Product information "iBasso D17 Atheris"
R2R+1bit dual discrete DAC + dual Nutubes headphone amplifier
- 284 high-precision film resistors with a low temperature coefficient of 0.01% (25 ppm)
- Two Nutube 6P1 vacuum tubes with a lifespan of up to 30,000 hours
- Custom-made 24-step 4-stage step attenuator with a channel tolerance of less than +/- 0.1 dB
- Two Accusilicon femtosecond quartz oscillators with extremely low phase noise. Professional audio DSP chip with a theoretical dynamic range of up to 192 dB and a THD+N value of -174 dB
- Ultra-low-noise analog power supply with a noise level of only 0.6 μV, which is below the 0.8 μV of Linear Technology's LT304x
- Dual battery architecture with separate batteries for powering the digital and amplifier sections. Custom-made film capacitors and vintage SPRAGUE capacitors from iBasso
- 1.3-inch OLED display
R2R+1bit dual structures
A new benchmark for portable DACs and amplifiers
The D17 uses iBasso's proprietary discrete R2R and 1-bit DAC. It features a four-channel, fully symmetrical R2R discrete component DAC that uses a total of 284 high-precision film resistors with an accuracy of 0.01%. R2R decoding ensures a natural, refined sound with natural analog reproduction, offering a unique, vivid listening experience. iBasso's proprietary 1-bit DAC uses 8 sets of 8E, a total of 64 PWM DACs, delivering a landscape of rich musical detail and extremely high-resolution audio reproduction.
The D17 has three DAC modes
NOS mode (PCM uses R2R DAC decoding, DSD uses 1-bit DAC decoding)
All to R2R (OS mode, all to PCM format)
All to 1 bit (SD mode, all to DSD format)
Four-channel, fully symmetrical R2R architecture
284 high-precision resistors with a tolerance of one ten-thousandth
The D17 features a four-channel, fully symmetrical R2R architecture and 284 carefully selected, ultra-precise film resistors with a tolerance of one ten-thousandth. Equipped with iBasso's proprietary hardware resistance compensation circuit and software compensation algorithms, the D17 achieves a THD+N of -104 dB in R2R mode, surpassing conventional R2R devices by more than ten decibels and competing with various flagship R2R desktop DACs. R2R decoding provides a rich analog sound that produces a warm, refined sound with exceptional musicality.
64 PWM DAC, 1-bit architecture
Opening the door to acoustic realism
In 1-bit mode, the four channels L+, L-, R+, and R- each have 16E, for a total of 64 PWM DAC units working together. Controlled by the FPGA Master 3.0 with nanosecond-accurate I/O delay control and “wiring delay” compensation to ensure that the signal edges arriving at the DAC are aligned and strictly synchronized. This not only achieves an impressive THD+N of -114 dB, but also significantly improves sound detail and density.
FPGA Master 3.0
Inside Precise nanosecond control, global clock regeneration
The D17 is equipped with iBasso's proprietary FPGA Master 3.0 architecture, which is deeply integrated with two Accusilicon femtosecond oscillators with extremely low phase noise to create a pure, unified single clock source. Through high-precision nanosecond delay control and real-time clock regeneration technology, the system can simultaneously compensate for R2R decoding and 1-bit decoding, reducing clock jitter and distortion to an extremely low level. This ultimately results in highly accurate sound reproduction that ensures every detail is reproduced in its original form.
Two Korg 6P1 Nutubes
Fully balanced headphone amplifier with incredible performance
The D17's two Nutube 6P1 tubes give the sound a unique tube character and a warm, soft yet dynamic texture. The anode is powered by a 24V high-voltage supply, which ensures better linearity. Combined with the powerful TI BUF634A buffer amplifier, this ensures a stable and powerful power supply. This allows the D17 to deliver over 1200 mW + 1200 mW at 32 Ω, easily driving a wide range of flagship IEMs and high-impedance headphones.
Three-layer seismic isolation system
Secondary reduction of the microphone effect
The D17 features an isolation system consisting of a double-layer printed circuit board combined with damping materials. The two PCB layers are connected to each other via pin connectors, which effectively distributes and dampens lateral loads and significantly reduces resonance. The tube is mounted with damping materials on the second circuit board layer, which provides secondary reduction of the microphone effect. Actual measurements show that the microphone effect is below the threshold of human perception. It consistently ranks at the top among all iBasso tube amplifier products.
Dual battery architecture demonstrates solid performance
Pure sound quality at the highest level, even in complex passages
The D17 features a dual battery architecture, with the DAC and headphone amplifier powered by separate batteries. This dual architecture ensures that the headphone amplifier section receives a stable power supply while effectively isolating digital interference. Whether at high gain or high load, the D17 can maintain pure and stable output, significantly reducing distortion caused by unstable power supplies. It truly delivers clear and flawless sound quality and is capable of reproducing your recordings with the highest musical quality.
24-step 4-section attenuator
Analog and digital volume controls
The D17 supports both analog and digital volume controls. The analog volume control uses iBasso's 24-step 4-section step attenuator, which is only one-tenth the size of a conventional step attenuator but retains all of its advantages. The difference between the left and right channels is less than +/- 0.1 dB. Digital volume control is provided by a professional DSP module. The combination of analog and digital volume control enables more precise volume output.
Specifications
Specifications
R2R DAC
4.4 mm balanced headphone output:
Output level: 7 Vrms (AMP H Gain + DAC H Gain)
Output power: 1200 mW + 1200 mW at 32 Ω (distortion <1%)
THD+N: -76 dB (tube amplification)
SNR: 116 dB (AES17-20K A-weighted)
Dynamic range: 116 dB (AES17-20K A-weighted)
Crosstalk: 129 dB
Frequency response: 15 Hz – 22 kHz at -1 dB 15 Hz – 40 kHz at -2.5 dB
Output impedance: 1.9 Ω
3.5 mm single-ended headphone output:
Output level: 3.5 Vrms (AMP H Gain + DAC H Gain)
Output power: 320 mW + 320 mW at 32 Ω (distortion <1%)
THD+N: -70 dB (tube amplification)
SNR: 112 dB (AES17-20K A-weighted)
Dynamic range: 112 dB (AES17-20K A-weighted)
Crosstalk: 125 dB
Frequency response: 15 Hz – 22 kHz at -1 dB 15 Hz – 40 kHz at -2.5 dB
Output impedance: 1 Ω
4.4 mm balanced line output
Output level: 2.4 Vrms (DAC low gain)
Output level (high gain): 4 Vrms (DAC high gain)
THD+N: -104 dB
SNR: 126 dB (AES17-20K A-weighted)
Dynamic range: 126 dB (AES17-20K A-weighted)
Crosstalk: 120 dB
Frequency response: 15 Hz – 22 kHz at -1 dB 15 Hz – 40 kHz at -2.5 dB
3.5 mm single-ended line output
Output level (low gain): 2 Vrms
Output level (high gain): 2.4 Vrms
THD+N: -103 dB
SNR: 120 dB (AES17-20K A-weighted)
Dynamic range: 120 dB (AES17-20K A-weighted)
Crosstalk: 100 dB
Frequency response: 15 Hz – 22 kHz at -1 dB 15 Hz – 40 kHz at -2.5 dB
1-bit DAC
4.4 mm balanced headphone output
Output level: 3.5 Vrms (AMP H Gain + DAC H Gain)
Output power: 340 mW + 340 mW at 32 Ω (THD < 0.5%)
THD+N: -76 dB (tube amplification)
SNR: 109 dB (AES17-20K A-weighted)
Dynamic range: 109 dB (AES17-20K A-weighted)
Crosstalk: 123 dB
Frequency response: 15 Hz – 22 kHz (-1 dB) 15 Hz – 40 kHz (-2.5 dB)
Output impedance: 1.9 Ω
3.5 mm single-ended headphone output
Output level: 1.7 Vrms (AMP H Gain + DAC H Gain)
Output power: 87 mW + 87 mW at 32 Ω (THD <1%)
THD+N: -70 dB (tube amplification)
SNR: 104 dB (AES17-20K A-weighted)
Dynamic range: 104 dB (AES17-20K A-weighted)
Crosstalk: 118 dB
Frequency response: 15 Hz – 22 kHz (-1 dB) 15 Hz – 40 kHz (-2.5 dB)
Output impedance: 1 Ω
4.4 mm balanced line output
Output level: 2 Vrms (DAC Low Gain)
Output level: 2.4 Vrms (DAC High Gain)
THD+N: -114 dB
SNR: 118 dB (AES17-20K A-weighted)
Dynamic range: 118 dB (AES17-20K A-weighted)
Crosstalk: 120 dB
Frequency response: 15 Hz – 22 kHz (-1 dB) 15 Hz – 40 kHz (-2.5 dB)
3.5 mm single-ended line output
Output level: 1 Vrms (DAC Low Gain)
Output level: 1.2 Vrms (DAC High Gain)
THD+N: -110 dB
SNR: 114 dB (AES17-20K A-weighted)
Dynamic range: 114 dB (AES17-20K A-weighted)
Crosstalk: 100 dB
Frequency response: 15 Hz – 22 kHz (-1 dB) 15 Hz – 40 kHz (-2.5 dB)
Inputs: USB-C (DATA): Supports PCM 768 kHz / DSD512
3.5 mm coaxial: Supports PCM 768 kHz / DOP256
3.5 mm optical: Supports PCM 192 kHz / DOP128
Outputs: 4.4 mm balanced PO, 4.4 mm balanced LO
3.5 mm unbalanced PO, 3.5 mm unbalanced LO
USB-C (charging): Supports 5 V/3 A and QC3.0 fast charging
Charging time: 3 hours
Playback time: 15 hours
Dimensions: 145 mm x 86.3 mm x 31.6 mm
Weight: 470 g
What`s in the box
iBasso D17 Atheris
PU-case
Carrying case
Cable
User manual
Informationen zum Hersteller
R2R+1bit dual discrete DAC + dual Nutubes headphone amplifier
- 284 high-precision film resistors with a low temperature coefficient of 0.01% (25 ppm)
- Two Nutube 6P1 vacuum tubes with a lifespan of up to 30,000 hours
- Custom-made 24-step 4-stage step attenuator with a channel tolerance of less than +/- 0.1 dB
- Two Accusilicon femtosecond quartz oscillators with extremely low phase noise. Professional audio DSP chip with a theoretical dynamic range of up to 192 dB and a THD+N value of -174 dB
- Ultra-low-noise analog power supply with a noise level of only 0.6 μV, which is below the 0.8 μV of Linear Technology's LT304x
- Dual battery architecture with separate batteries for powering the digital and amplifier sections. Custom-made film capacitors and vintage SPRAGUE capacitors from iBasso
- 1.3-inch OLED display
R2R+1bit dual structures
A new benchmark for portable DACs and amplifiers
The D17 uses iBasso's proprietary discrete R2R and 1-bit DAC. It features a four-channel, fully symmetrical R2R discrete component DAC that uses a total of 284 high-precision film resistors with an accuracy of 0.01%. R2R decoding ensures a natural, refined sound with natural analog reproduction, offering a unique, vivid listening experience. iBasso's proprietary 1-bit DAC uses 8 sets of 8E, a total of 64 PWM DACs, delivering a landscape of rich musical detail and extremely high-resolution audio reproduction.
The D17 has three DAC modes
NOS mode (PCM uses R2R DAC decoding, DSD uses 1-bit DAC decoding)
All to R2R (OS mode, all to PCM format)
All to 1 bit (SD mode, all to DSD format)
Four-channel, fully symmetrical R2R architecture
284 high-precision resistors with a tolerance of one ten-thousandth
The D17 features a four-channel, fully symmetrical R2R architecture and 284 carefully selected, ultra-precise film resistors with a tolerance of one ten-thousandth. Equipped with iBasso's proprietary hardware resistance compensation circuit and software compensation algorithms, the D17 achieves a THD+N of -104 dB in R2R mode, surpassing conventional R2R devices by more than ten decibels and competing with various flagship R2R desktop DACs. R2R decoding provides a rich analog sound that produces a warm, refined sound with exceptional musicality.
64 PWM DAC, 1-bit architecture
Opening the door to acoustic realism
In 1-bit mode, the four channels L+, L-, R+, and R- each have 16E, for a total of 64 PWM DAC units working together. Controlled by the FPGA Master 3.0 with nanosecond-accurate I/O delay control and “wiring delay” compensation to ensure that the signal edges arriving at the DAC are aligned and strictly synchronized. This not only achieves an impressive THD+N of -114 dB, but also significantly improves sound detail and density.
FPGA Master 3.0
Inside Precise nanosecond control, global clock regeneration
The D17 is equipped with iBasso's proprietary FPGA Master 3.0 architecture, which is deeply integrated with two Accusilicon femtosecond oscillators with extremely low phase noise to create a pure, unified single clock source. Through high-precision nanosecond delay control and real-time clock regeneration technology, the system can simultaneously compensate for R2R decoding and 1-bit decoding, reducing clock jitter and distortion to an extremely low level. This ultimately results in highly accurate sound reproduction that ensures every detail is reproduced in its original form.
Two Korg 6P1 Nutubes
Fully balanced headphone amplifier with incredible performance
The D17's two Nutube 6P1 tubes give the sound a unique tube character and a warm, soft yet dynamic texture. The anode is powered by a 24V high-voltage supply, which ensures better linearity. Combined with the powerful TI BUF634A buffer amplifier, this ensures a stable and powerful power supply. This allows the D17 to deliver over 1200 mW + 1200 mW at 32 Ω, easily driving a wide range of flagship IEMs and high-impedance headphones.
Three-layer seismic isolation system
Secondary reduction of the microphone effect
The D17 features an isolation system consisting of a double-layer printed circuit board combined with damping materials. The two PCB layers are connected to each other via pin connectors, which effectively distributes and dampens lateral loads and significantly reduces resonance. The tube is mounted with damping materials on the second circuit board layer, which provides secondary reduction of the microphone effect. Actual measurements show that the microphone effect is below the threshold of human perception. It consistently ranks at the top among all iBasso tube amplifier products.
Dual battery architecture demonstrates solid performance
Pure sound quality at the highest level, even in complex passages
The D17 features a dual battery architecture, with the DAC and headphone amplifier powered by separate batteries. This dual architecture ensures that the headphone amplifier section receives a stable power supply while effectively isolating digital interference. Whether at high gain or high load, the D17 can maintain pure and stable output, significantly reducing distortion caused by unstable power supplies. It truly delivers clear and flawless sound quality and is capable of reproducing your recordings with the highest musical quality.
24-step 4-section attenuator
Analog and digital volume controls
The D17 supports both analog and digital volume controls. The analog volume control uses iBasso's 24-step 4-section step attenuator, which is only one-tenth the size of a conventional step attenuator but retains all of its advantages. The difference between the left and right channels is less than +/- 0.1 dB. Digital volume control is provided by a professional DSP module. The combination of analog and digital volume control enables more precise volume output.
EU-Verantwortlicher
NT Global Distribution GmbH
Buntentorsdeich 10
28201 Bremen
Deutschland
www.nt-global.de
info@nt-global.com