Monitoring & Mixing my audiobooks

I've been using KRK Rokit 6 monitors for my audiobooks for nearly 4 years now, and I really like what I hear. My As I work in mono, I only need one monitor, no need for a stereo pair. I work using a digital audio workstation, AKA a PC with a half-decent audio-interface, namely a Audient ID4, which offers XLR & 6.35mm jack inputs and TRS balanced outputs for monitoring. It took a while for me to understand exactly what TRS was - initially I was hunting around fruitlessly for a USB interface that offered XLR outputs as I was fixed on having balanced output (for the initiated, balanced signals in audio terms are designed to minimise unwanted noise intruding into the signal, such as from nearby electronics). All the interfaces I looked at did not offer this, at least not the budget conscious variety I can afford. After consulting my slightly more knowledgeable elder brother I was realized that although TRS utilizes the 1/4 inch jack plug interface, it carries a balanced signal, care of the TRS wiring (TRS = Tip/Ring/Sleeve) follow this link for more information. With this new information I realised that I had a good choice of USB interfaces that will provide balanced output suitable for a studio monitor. After some investigation I plumped for the KRK Rokit 6, monitor. Opinions are a little divided but I find it more than enough for my audiobook needs. 

I will say that it is a little bottom-end heavy, and combined with my Rode Procaster XLR dynamic studio mic, which has low-mid warmth, I found initially my recordings seemed pretty muddy and woolly sounding. For anyone possessing either of those two components, I have a few words of advice born of my own experience: 

Rode Procaster: Requires plenty of gain to get the best frequency response, but has incredible signal-to-noise ratio, so it's very clean souding even if you EQ it heavily. I found that my Audient iD4 didn't drive it hard enough, and have since used a Podtrak P4 by Zoom, which has an insane 70db of gain. The difference in audio characteristics with the right gain is remarkable.

As for the Rokit 6 - this too needs a little attention - on the rear there are some EQ adjustments in precise 1, 2 and 3db increments. I rolled off the low frequencies by 3db to gain a more accurate sound that held up when I replayed the files elsewhere. 

Please read this article from Sound on Sound.