BBE EQA231 Dual 31-Band Equalizer with Constant-QThe BBE EQA-231 is a professional dual 31-band graphic equalizer. Ideal for use in live sound rigs and installed setups such as studio, stage, DJ and sound contracting. The EQA-231 utilizes Constant-Q filters (constant bandwidth) this means that the bandwidth of each individual filter has a perfect balance between being narrow enough to prevent unwanted interaction between filters, yet wide enough to deliver exactly the type of correction curve for the ultimate in precision equalizing.
Input Specifications: • Connectors: XLR 3-pin, 1/4" TRS • Impedance: 20K ohms balanced; 15K ohms • Maximum level: +24 dBu balanced, +18 dBu unbalanced.
Output Specifications: • Connectors: XLR 3-pin, 1/4" TRS • Impedance: Typ. <150 ohms • Maximum level: +24 dB balanced, +18 dB unbalanced (2K ohms; +18 dB balanced, +12 dB unbalanced (600 ohms) • Overall gain range: Off to 3 dB (unbalanced out) sliders centered; Off to 9 dB (balanced out) sliders centered • Peak LED: Threshold 5 DB • Frequency response: 20~20 kHz +0, -2 dB • HPF filter: 10~250 z, 12 dB/oct • LPF filter: 3K~40 kHz, 12 dB/oct • THD+Noise: 0.05% (1 kHz +3 dB) • S/N ratio: 96 dB below max. level • Equivalent input noise: -81 (0 dB=0.775V) • Line voltage: 95~130 VAC, 50/60 Hz 190~250 VAC, 50 Hz • Input AC power: 12 watts.
Overall System Specifications: • Equalizer: 1/3-Octave ISO spacing from 20 Hz to 20 kHz • Type: Constant Q (Accuracy 5% center frequency) • Range: ±6 dB or ±12 dB (Switch selectable) • Dimensions: 3.5" H x 19" W x 8.5" D 2U (8.9 x 48.3 x 21.6 cm) • Weight: 9 lbs. (4.1 kg).