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The Hikvision DS-QAPPR0808-D is a professional 8-input / 8-output digital audio processor featuring a high-performance 32-bit floating-point DSP, 24-bit/48kHz A/D and D/A conversion, matrix mixing, acoustic feedback cancellation, echo cancellation and adaptive noise suppression. It provides flexible USB recording/playback and software control across Windows, macOS, Linux, Android and iOS
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Simply AVS are able to offer significant discounts for Education customers, and for larger orders. Purchase orders welcome. Finance options available. Contact us today
The DS-QAPPR0808-D combines multiple conventional audio-processing functions into a single professional digital processor. Its 32-bit floating-point DSP and 24-bit/48kHz conversion provide precise processing for conference rooms, meeting spaces, auditoriums, live sound and commercial AV systems.
The processor provides 8 balanced line-level inputs and 8 balanced line-level outputs, with a comprehensive processing chain including preamplification, parametric and graphic EQ, compression, automatic gain control, automatic mixing, ducking, feedback cancellation, acoustic echo cancellation and adaptive noise suppression.
A matrix mixing engine and support for up to 100 scene presets allow different room configurations or operating modes to be stored and recalled. Control is available through the supplied graphical software, while Ethernet, RS232, RS485 and 8 programmable GPIO interfaces provide integration with external control systems.
| Specification | DS-QAPPR0808-D |
|---|---|
| Product type | Digital audio processor |
| Analogue inputs | 8 |
| Analogue outputs | 8 |
| Input type | Balanced line |
| Output type | Balanced line |
| DSP | 32-bit floating point |
| Sampling | 48kHz / 24-bit |
| Frequency response | 20Hz–20kHz, ±0.2dB |
| THD + noise | ≤0.003% @ 1kHz, +4dBu |
| A/D dynamic range | 114dB, A-weighted |
| D/A dynamic range | 120dB, A-weighted |
| Input impedance | 20kΩ balanced |
| Output impedance | 100Ω balanced |
| Channel isolation | >100dB @ 1kHz |
| Common-mode rejection | >60dB @ 50Hz |
| SNR | ≤108dB |
| Equivalent noise level | ≤ -125dBu |
| Maximum input level | +18dBu |
| Maximum output level | +18dBu |
| System delay | ≤9ms |
| Phantom power | 48V DC |
| Feedback cancellation | Up to 16 notch points |
| Feedback suppression | Automatic narrowband notch |
| Feedback finding time | 0.1–0.5s |
| Transmission gain | 6–18dB |
| System gain | 87dB |
| Crossover filters | Butterworth, Bessel, Linkwitz-Riley |
| Parametric EQ | 5/8/12-band |
| Graphic EQ | 10/15/31-band |
| Compressor | Yes |
| Expander | Yes |
| AGC | Yes |
| Automatic mixing | Yes |
| Ducker | Yes |
| AFC | Yes |
| AEC | Yes |
| ANS | Yes |
| ANC | Yes |
| Output limiter | Yes |
| Matrix mixing | Yes |
| Scene storage | Up to 100 scenes |
| Network interface | 1 × RJ45 |
| Serial interfaces | 1 × RS232, 1 × RS485 |
| GPIO | 8 programmable interfaces |
| USB | 1 × USB Type-A |
| Display | 1.3-inch OLED |
| Power consumption | 30W |
| Power supply | 110–220VAC |
| Dimensions | 486 × 258 × 44mm |
| Net weight | 3kg |
| Gross weight | 3.5kg |
| Operating temperature | 0–40°C |
| Operating humidity | 10–90%, non-condensing |
| Mounting | Rack / installation |
| Brand | Hikvision |
|---|---|
| Google EDLA | No |