LIGWA FF-4000
The LIGWA FF-4000 mixer is made and manufactured in England by Formula Sound. There are 2 formats, the original and a custom version made for LIGWA with 5 outputs, 2 stereo and 3 mono which can be used in conjuntion with LIGWA M62/M42 Loudspeaker Management Controllers.
To realise the full potential of loudspeaker systems it is of vital importance that everything in the signal path is of equivalent quality to the loudspeakers.
Choosing to work with an inadequate mixer can fatally impair the performance of a system and even some of the most used models actually sound terrible.
The FF-4000 is essentially a five channel mixer. Four of these channels are laid out to the left of the master section and the fifth is a dedicated microphone channel labelled ‘Console Mic’ positioned to the right of the master section.
Full specifications
| Dimensions (H x W x D) | (Exc. Knobs & connectors): 312mm x 350mm x 110mm (12.25" (7U) x 13.78" x 4.33") |
|---|---|
| Maximum output level | Main output, Zone output and Booth monitors output active balanced +22dBu |
| Frequency Response | E.Q. set flat 20Hz - 20KHz +/-0.5dB |
| Distortion | < 0.01% typically <0.005% |
| Gain | Stereo inputs rear trim @ max +/- 15dB Stereo inputs rear trim @ min + 0dB -20dB Microphone input max + 75db Microphone input min + 0dB |
| Maximum input level |
Stereo input A (RIAA) -8dBV 400mV Stereo input B +20dBV Microphone +4 dBV |
| Noise measured 20Hz-20kHz |
Stereo inputs e.q. flat gain set to max EIN < -98dB RIAA stage ref. 5mV 1kHz Input shorted -80dBV “A” weighted Microphone input (ref 150R) EIN < -124dBU |
| Input Impedances | Stereo input A > 47k ohms Stereo input B > 10k ohms Microphone input > 2k ohms active balanced |
| Equalisation | 3 band e.q. per channel +5dB -23 dB @ Treble 10kHz Mid 1kHz, Bass 100Hz |
| Power Supply | Mains: 3 pin IEC |
| AC Power Input | 220-240V or 110-120V |