The REQ is available with a silver-grey or black face plate. (This feature only applies to units with serial number Q1110 and up). This means for stereo work you only need to push either the channel A or B switch to change both channels simultaneously. The channel A and channel B push button switches (SYSTEM, HPF and SATURATION) can be grouped by holding down any switch for 5 seconds. The overall SYSTEM IN/OUT controls and the power switch complete the picture. On the right side of the front panel are the HIGH PASS FILTER and SATURATION controls with their own IN/OUT switches. Custom ranges and steps can be supplied to special order. The BOOST/CUT control is a 23 postion Elma switch with a range of +/-8dB, with 0.5dB steps up to 3dB then 1dB steps to 8dB. Each band also has an IN/OUT switch removing the band completely from the signal path. The Low and High Mid bands frequency range is changed to alternative selections when the FREQ x2.5 mode is selected. On the High and Low bands, the BANDWIDTH control reverts to shelf SLOPE control when SHELF mode is selected via the push button switch (but not with the Active Low Band option fitted). Finally, low glare rustic silver finish and retro Elma knobs give the REQ an impressive look in your rack!Įach eq band has a 12 position switch to select the FREQUENCY and another that selects the BANDWIDTH or shape of the bell shape curve (Q) which is adjustable from 1/3 octave to 2 octaves wide. A looping line XLR input and two parallel XLR outputs provide flexible connection options in the mastering control room. In total there are 72 frequency choices per channel with overlapping selections across the four bands so you can always find the centre frequency you are looking for. The large knobs and positive feel of the switching make the REQ a pleasure to operate and everything is visually clear when mounted into a console. This layout produces the best overall equalizer coherency. The High Pass Filter is placed in the beginning of the eq chain and the Low Band eq section is placed last in the chain. It also utlilizes our BE44 discrete line driver at the output that acts like a transformer and can respond to balanced or unbalanced loads.īut sometimes you might need a bit more color, so we have included a saturation section that introduces measured amounts of low frequency harmonic distortion via a steel audio transformer driven by a single ended transistor amplifier. audio path qualityĪs you would expect, the REQ uses our BE40 True Class A circuits developed for the MA-2.2 microphone amplifier for superlative audio performance. The overall result is the sound of real choke based filters with a big open sound, but without the limitation of only a few - or no bandwidth selections as found on traditional choke eq's. The inductor/capacitor resonant "tank" eq circuit runs at a low internal signal level which avoids any inductor saturation effects. Below is a list of some of the products that will be on display in the EQ Room.The REQ-2.2 mastering equalizer utilises parallel resonant circuits in a clever configuration whereby the bandwidth (Q) of the circuit can be adjusted like an active filter, but without any complex relay switching. This year will be our biggest and most exciting year yet! Toronto AudioFest is on between Friday, October 20th and Sunday, October 22nd, at the Toronto Westin Airport.
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