The N73EQ brings the EQ section of the classic British console you know and love to a 500 series form factor. This warm, punchy EQ’s versatility has been magnified by adding more frequency choices on the mid and high bands, giving you even more control over your tone. Each selected frequency can be boosted or cut by +/-15 dB. It also features a HPF with four frequency choices. A convenient on/off switch can quickly bypass the EQ, and each frequency band can also be bypassed individually by setting the frequency knob to the "off" position. The discrete, Class-A circuitry leaves little to be desired by audio professionals and hobbyists alike, but with the N73EQ, that signature sound is now available at a price that suits nearly any gear budget.
The N73EQ works standalone in any 500 series rack, however with some (probably most) racks you will need a polarity reverse adapter on the input to work properly, which can be picked up for about $10 and up. This model is a rebranded Alctron EQ75a. The predecessor was the EQ73a, which used a mini insert instead of working standalone. A mini insert cable uses 3 wires for input, output, and ground, so it is unbalanced. Likewise, the newer standalone version is unbalanced and pin 3 is hot (+), so if your rack XLRs are pin 2 hot then you will need to reverse pins 2 and 3 on input with an adapter so that your signal doesn't shunt to ground. I recommend the Hosa GXX195, as they are one of the most affordable ones you can trust to actually work.
* Vintage-style discrete circuitry
* 3 frequency bands
* Dual inductor mid-band
* Inductor-based high-pass filter
* Control range up to +/- 15 dB
* Extra frequency choices
* Each band can be bypassed individually
* ON/OFF switch