ASHLY Protea 4.24C is a digital divider/system processor with 4 inputs and 8 outputs; occupies 1U rack space; can be assigned input to output arbitrarily; has functions such as division, equalization, delay and limiting; has LINKWITZ-RILEY, Bessel and BUTTERWORTH filters; filter slopes are 12, 18, 24, 48dB/octave; parametric equalizer; passband, 1/64 to 4 octave range; input and output delay; each output has a limiter; intuitive user interface; control via PC or MIDI; AMX compatible network link control; dedicated input and output level meters; balanced input and output; XLR signal connectors; dual safety protection settings; easy to use, after setting, it can even be operated without manual manipulation; the simple and exquisite circuit design ensures that it can achieve worry-free, high-performance operation.
The Ashly Protea 4.24C is a 4‑input, 8‑output digital crossover/system processor designed for professional audio installations. The Protea System Software (version 5.0) runs on Windows 95/98/2000/NT and provides routing, filtering, delay, EQ, gain, limiter and mute functions via PC or MIDI control.
The manual covers software installation, RS‑232 communication setup, menu navigation, routing configuration, filter selection, EQ and delay settings, gain and limiter adjustments, and preset management. It also lists the hardware specifications and power requirements for the unit. This manual is written in Chinese.
| Input Impedance | 18 kΩ balanced |
|---|---|
| Maximum Input Level | +20 dBu |
| Maximum Output Level | +20 dBu |
| Frequency Response | ±2.5 dB, 20 Hz‑20 kHz |
| Total Harmonic Distortion | <0.01 % @1 kHz, +20 dBu |
| Dynamic Range | >110 dB (20‑20 kHz) |
| Output Noise | <‑90 dBu |
| EQ Filters per Input/Output | 6 per input, 4 per output |
| Maximum Input Delay | 682.5 ms |
| Maximum Output Delay | 21.33 ms |
| Power Requirement | 80‑260 VAC, 30 W |
Connect the supplied RS‑232 cable from the PC’s RS‑232 port to the ASHLY Protea 4.24C’s RS‑232 port.
Use the “Save preset to protea” menu command to upload the current settings to the Ashly Protea 4.24C.
The software supports Linkwitz‑Riley, Bessel and Butterworth filter types.
Yes, you can configure routing, crossover, delay and EQ settings in the software and save them; the settings are stored on the PC and can be uploaded later.