Trident Audio Developments A-Range 500 Fourd Band Equalizer Module The legendary A-Range equalizer holds a unique place in audio history, with a stunningly musical sound that resulted from its all-discrete transistor circuitry and the use of inductors in the upper and lower mid bands. The A-Range is a faithful re-creation of the original four band Trident A-Range equalizer in a 500 module format, that will add the unique Trident signature to any programme material. Technical Specifications Input impedance 10kohm balanced Common mode rejection 70dB Equivalent input noise -85dBu (unweighted, no boost or cut) Distortion 0.05% (+4dBu output, 1kHz) Frequency response 20Hz to 20kHz (-1dB) Boost / Cut range +/-15dB (variable) Filter Q value 1.3 (1 octave) Maximum input level +22dBu Max output before clip +28dBu (10k load) Nominal output level +4dBu (electronically balanced) Output impedance 100 ohm Output noise floor -85dBu (typical, unweighted) Peak LED threshold +16dBu I/O connections XLR pin 2 +, pin 3 -, pin 1 ground Current requirement 130mA (maximum) per rail