Features:
- The ACT-818 is a 1/2U single channel rack-mountable receiver with metal chassis.
- Full-color VFD (vacuum fluorescent display) for clear viewing of all parameters. All controls are intuitive and easily accessible, allowing for quick and easy system setup via a single rotary control.
- Enhanced RF circuitry improves anti-interference characteristics and system compatibility with 64 MHz wide bandwidth allows more interference-free channels to be selected.
- New digital diversity receiving technology eliminates signal dropout and enhances receiving range.
- Full-Range sound quality won’t be changed by the strength of RF signals or operation distance.
- Digitally-processed RF circuitry and DigitnamicPlus™ technology eliminates compander noise, assuring a wireless sound quality that easily rivals cable transmission.
- Improved proprietary Audio A/D Converter provides a true dynamic range of 115 dBA, T.H.D. < 0.03% at 1 kHz with < 2.7 ms latency
- SPDIF Digital Audio Interface facilitates a direct connection to digital mixing consoles and transmits signal without distortion, ensuring a stable S/N ratio which will not deteriorate in long distance transmission.
- Proprietary 256-bit encryption, provides secure audio transmission, preventing unauthorized listening.
- 10 built-in SmartEQ™ presets and user-defined microphone capsule equalization allows faithful sound reproduction to suit artists’ preferences.
- 10 built-in digital anti-feedback SmartEQ™ presets minimize feedback effectively without sacrificing sound quality.
Specifications:
| Overall System | |||
| Frequency Range | UHF 480 – 960 MHz (country dependent) | ||
| Bandwidth | 64 MHz | ||
| Channel Grid | 25 kHz | ||
| Channel Set-up | Scan & ACT sync | ||
| Audio Sampling | 24-bit / 44.1 kHz | ||
| Audio Frequency Response | 20 Hz – 20 kHz (-2 dB) | ||
| Encryption | 256 bit | ||
| Audio Compression | 2nd generation DSP inertial coding | ||
| Latency | 2.7 ms | ||
| S/N Ratio (analog output) | > 115 dB(A) | ||
| T.H.D. | < 0.03% @ 1 kHz | ||
| Receiver | |||
| Chassis / Channel | EIA Standard 19″ 1/2U, Single | ||
| Sensitivity | 12 dBμV at S/N ≒ 118 dBA (D) | ||
| Image & Spurious Rejection | > 85 dB | ||
| Receiving Mode | Digital Diversity | ||
| Audio Output | Balanced XLR , Unbalanced 6.3 mm (1/4 “) | ||
| Analog Output Switch | Mic / Line | ||
| Digital Audio Interface | AES3id output. BNC female | ||
| Digital Equalizer | 10 built-in SmartEQ™ & 10 built-in digital anti-feedback SmartEQ™ | ||
| PC Interface | USB or RS-232 interface. Proprietary MIPRO ACT-BUS | ||
| Display | Full-color VFD | ||
| Battery Meter | Transmitter battery status | ||
| Antenna Input | 2 × 50Ω TNC female connector | ||
| Power Supply | External AC switching power | ||
| Dimensions (W × H × D) | 210 × 44 × 230 mm / 8.3 × 1.7 × 9 “ | ||
| Weight | Approx. 1.1 kg / 2.4 lbs | ||
| Operating Temperature | -10 – +60℃ | ||
