Crossover Số ASHLY PROTEA 4.8SP-PHÂN TẦN SỐ XỬ LÝ ÂM THANH MỘT CÁCH HOÀN HẢO

Protea System Processor (4.8) The system processor shall consist of four inputs and eight outputs. It shall utilize 48-bit double-precision fixed-point DSP filtering with 24 bit, 48kHz, 128x oversampling delta-sigma A/D and D/A converters. Digital processing includes Gain, Parametric EQ, Shelving Filters, Time Delay, Crossover Functions, Compression, Limiting, and Matrix Routing. All inputs and outputs are RFI-protected precision balanced on XLR connectors. The processor shall have a front panel interface that allows quick access to all control parameters by offering dedicated function buttons, eliminating the need for hidden sub-menus. The front panel shall have a large white-backlit LCD text display for easy viewing. Front panel LED meter bars shall also be provided on all inputs and outputs. A USB port shall be provided on the front and rear panels for even faster set-ups and stronger visualization of input/output routing, EQ, and filter curves using freely available control software. The back panel shall also provide an RS-232 data port for control and monitoring. The digital processor shall be capable of storing up to 30 preset file “snapshots”. It shall include four security modes; Off, Preset Lock, Parameter Lock, and Full Lockout. When connected to a PC via the USB port, security settings made on the unit are read and used within the software security section. The DSP processor shall mount in a standard 19” rack using 1 space (1.75” high).  Features 4.8SP Features: • Front Panel Parameter Control • Single rack space with XLR audio connections • Extremely intuitive user interface • Crossover, EQ, delay and limiter functions • Outputs assignable to any input • Front panel or PC programming and control with 4 levels of security • USB and RS-232 interface • Third-party control friendly • Balanced inputs and outputs • Linkwitz-Riley, Bessel and Butterworth filters • 12, 18, 24 and 48dB/octave slopes • Parametric EQ: 1/64th to 4 octave range • 682ms input and output delay (1,364ms total) • Limiter on each output • Individual input and output metering