Pete7
Headphoneus Supremus
I recently got a D2 Boa, and I'm enjoying the sound of it very much (about 160 hours burn-in so far). I just opened the amp up out of curiosity for the first time, and I think I can say pretty definitively this amp does not have 4-channel architecture like some of the other iBasso amps and amp/DAC's (D2 Viper, Python, and P2). There is one dual op-amp in there and that is an AD8656. There is no other SOIC op-amp present on the board that would constitute an op-amp in a 3/4 buffer position- unless it is concealed underneath the battery, which seems unlikely. There are 2 smaller IC's located pretty close to the AD8656 which look like they may function as buffers. Also, I have noticed that on the iBasso page for the D2 Boa, there is no mention of a 4-channel architecture as there is for the Python. The amp does sound very good, nonetheless, but I'm really not certain if this distinction has been previously noted.
Ibasso D2 Boa:
Main Features:
- Wolfson WM8740 DAC Chip + TI PCM2706
- USB signal input, provides I2S interface for decoding
- Works as a DAC+AMP Combo or a standalone AMP
- 2-Setting Gain Switch for impedance matching
- 470mAh rechargeable Li-polymer battery with integrated charging system
- Measures 51*21*82mm, and weighs only 108g
- Battery life is 38hours
- Comes with leather pouch, AC adapter, USB cable, warranty card, and owner¡¯s manual
iBasso D3 Python
Portable Amp/USB-DAC
Main Features:
- Wolfson WM8740 DAC Chip + TI PCM2706
- USB signal input, provides I2S interface for decoding
-4ch Amp architecture
- Line out function, allow it to work as a standalone USB-DAC
- 2-Setting Gain Switch for impedance matching (+3/10dB)
- Powered by 5 AAA batteries. With 5 AAA alkaline, the play time is longer than 100 hours
- Measures 55*21*92mm, and weighs 130g
- Comes with one silver and one black enclosure, also comes with leather pouch, USB cable, warranty card, and owner¡¯s manual
Ibasso D2 Boa:
Main Features:
- Wolfson WM8740 DAC Chip + TI PCM2706
- USB signal input, provides I2S interface for decoding
- Works as a DAC+AMP Combo or a standalone AMP
- 2-Setting Gain Switch for impedance matching
- 470mAh rechargeable Li-polymer battery with integrated charging system
- Measures 51*21*82mm, and weighs only 108g
- Battery life is 38hours
- Comes with leather pouch, AC adapter, USB cable, warranty card, and owner¡¯s manual
iBasso D3 Python
Portable Amp/USB-DAC
Main Features:
- Wolfson WM8740 DAC Chip + TI PCM2706
- USB signal input, provides I2S interface for decoding
-4ch Amp architecture
- Line out function, allow it to work as a standalone USB-DAC
- 2-Setting Gain Switch for impedance matching (+3/10dB)
- Powered by 5 AAA batteries. With 5 AAA alkaline, the play time is longer than 100 hours
- Measures 55*21*92mm, and weighs 130g
- Comes with one silver and one black enclosure, also comes with leather pouch, USB cable, warranty card, and owner¡¯s manual