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ORIGINAL AUDIO OPA-Q2.1 Amplifier / Discrete Headphone Amplifier / DAC AK4490 Bluetooth 2x50W 4Ω 32bit 384kHz DSD256
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Original Audio OPA-Q2.1
Amplifier / Discrete Headphone Amplifier / DAC AK4490 Bluetooth aptX-HD LDAC 2x50W 4Ω 32bit 384kHz DSD256
Proving that versatility can also mean performance, the Original Audio OPA-Q2.1 combines the functions of integrated amplifier, headphone amplifier and DAC in one neatly designed unit.
DAC AK4490 & USB XMOS Interface
The digital to analog conversion stage of the OPA-Q2.1 uses a highly efficient AKM AK4490 DAC chip, offering excellent performance for precise and detailed sound reproduction. This DAC is associated with a USB XMOS interface, allowing to enjoy high resolution audio streams up to PCM 32bit 384kHz and DSD256.
Bluetooth reception
Behind its antenna, the OPA-Q2.1 hides a Bluetooth receiver CSR8675. This will allow you to broadcast your music remotely, directly from a connected smartphone for example. In addition, this chip supports high-definition transmission codecs such as aptX, aptX HD and LDAC, allowing you to achieve excellent wireless sound quality.
A rigorous design
All the circuits of the OPA-Q2.1 show a great rigor, as well in the architecture itself as in the selection of the components or the assembly. Thus, we find totally balanced power amplification and headphone amplification circuits ensuring a very low level of distortion. The headphone amplification section is based on the use of discrete components.
Two double discrete AOP also ensure a filtering function allowing to provide a beautiful sound transparency. A specially designed analog audio processing module also reinforces this sound neutrality while providing a certain musicality..
A chassis as robust as it is modern
All the components are integrated in a robust CNC machined aluminum enclosure, the transformer being totally isolated from the rest of the circuits in order to drastically limit potential interferences. Moreover, this chassis shows a sober but modern aesthetics which will be able to be integrated in many HiFi systems.
| 1 | Bluetooth input LED indicator |
| 2 | Coaxial input LED indicator |
| 3 | DSD input LED indicator |
| 4 | Headphone output switch |
| 5 | AUX input LED indicator |
| 6 | USB input LED indicator |
| 7 | Jack 6.35mm single-ended headphone output |
| 8 | 4 poles XLR headphone output |
| 9 | Volume button / Input switch |
| 10 | Stereo RCA output |
| 11 | USB-B Input |
| 12 | Coaxial input |
| 13 | Right channel speaker output |
| 14 | Power button |
| 15 | Stereo RCA input |
| 16 | Bluetooth antenna |
| 17 | Left channel speaker output |
| 18 | Power connector |
Technical characteristics
| Specifications | |
|---|---|
| Producy type | Amplifier Headphone amplifier DAC |
| Inputs | Bluetooth 1x USB-B 1x Coaxial 1x Stereo RCA |
| Outputs | Speaker terminals |
| OPA | 2x SX52B |
| DAC Chip | AK4490 |
| USB Interface | XMOS |
| Bluetooth chip | CSR8675 |
| Output power | 2x50W @ 4Ω, 14.1V, 1kHz 10% |
| Headphone output power | Balanced output : 405mW @ 300Ω Single-ended output : 120mW @ 300Ω |
| Supported Bluetooth codecs | SBC, AAC, aptX, aptX LL, aptX HD, LDAC |
| THD | 0.08% |
| General | |
|---|---|
| Power supply | 220V 50Hz |
| Dimensions | 248 x 248 x 70mm |
| Housing amterial | Aluminum |
| Color | Silver |
| Input | RCA |
| Input | Bluetooth |
| Input | USB |
| Input | SPDIF |
| Output | Speaker terminal |
| Color | Silver |
| Channel | 2 (Stereo) |
| Class | Class A / AB |
| Amplifier chip | N/A |
| Power (W) | 50.0 |
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