QLS HIFI QA690 Pure Full Digital Audio Amplifier Input PC USB/Coaxial*2/Optical/RCA Power Handle 160W*2 Support DSD 24Bit/192KHz
1.Environmental protection and energy saving, high-efficiency amplifying.
2.Up to 160W × 2 output power can meet the requirements of most speakers thrust.
3.Advance with times, QA690 supports PCM and DSD input(PCM is transferred from DSD for DSP processing).
4.Smooth,full, high-quality,high-reduction,songful and listenable sound.
5.Adhere to”the sound of the clock is the soul of the design”concept, using the new generation of zero-Jitter Clock QLS and digital processing circuits insures the local asynchronous digital signal regenerates, ensuring an enough fine, delicate sound.
6.Carrying out “the power is the mother of sound” design concept, QA690 selected high-power switching power supply, 20000uF Britain fever main filter capacitor, and the whole accounting for more than 70% of the power processing circuitry, perfectly realizing the ultimate sound.
7. The QA690 is the real pure digital amplifier, directly processing and amplifying the input of the digital signal without analog amplifying circuits. Having the strengths of direct and transparent sound, excellent transient, dynamic amplitude, low distortion and accurate positioning,the QA690 perfectly realizes the real HiFi sound.
|Digital Inputs||optical, coaxial RCA x 2, analog input, and optional XMOS digital interface module including an USB input.|
|Support Format||16Bit-24Bit, 32-192KHz PCM signal and DSD64 DoP signal (with adaptable bit rate and digits).|
|Input Switching Mode||panel buttons or remote control (tube nixie displays input channels and auto-save).|
|Volume Control||panel encoder or remote control to adjust volume, tube nixie displays the current volume of 0-80, the remote control can be adjusted the sound volume plus & minus 5 and auto-save.|
|High Frequency Compensation||available for speaker frequency response inherent defect, using the remote control to fine-tune the high-frequency and low-frequency compensation (default is not compensated).|
|Input Voltage||AC 90V-130V / 180V-250V (switch button on the left of the machine).|
|Load Impedance||2-16 ohms.|
|Output Power||4 Ohms 2 x 160W,|
8 Ohm 2 x 100W.
|Signal to Noise Ratio||101dB (A-weighted)|
|Frequency Response.||10Hz-20KHz (8 ohms)|
|Standby Power Consumption.|
|Machine Size||(L) 300mm x (W) 216mm x (H) 100mm ( length without output interface and knobs.)|