Digital Tone Controls - Roon and Others, really not bad

A very long time ago ( mid-1980’s’? ) Stereophile introduced me to the first commercial digital only equalizer I ever heard of. I believe it was from Apogee Digital ( I think ). At around the same time I was fantasizing about DSP and room correction and what the future could bring to audiophiles.

Of course, I also fantasized about the Technics 1/3 octave equalizers and a perfectly flat speaker response, not knowing much, but coming from a theater background where such were required. So as an enthusiast, this area has been one I’ve wanted to explore, beyond HT.

Recently I’ve played around with DSP for the center, sub and surround channels, but never really got into DSP being always on, afraid of it being in my oh so clean DAC--> Amplifier chain. What was the point of $800 in crossover caps if I’m going to put a $199 DSP in the middle, said I?

My previous preamp, a Parasound P7, had good but not great tone controls. Meaning, I could hear them engaged, even when set to neutral. My new unit, a Luxman integrated, has fantastic sounding tone controls. They sound like nothing except better music.

Of course, the promise of DSP based tone controls is mathematically perfect, and noise free, alteration of the sound with sushi-knife like precision. With something like Roon and the use of time gated measurements (I use OmniMic, others REW) I can adjust the parametric EQ in real time, even at my listening chair.  That's another thing that's stepped up remarkably. Being able to get time-gated measurements in kit affordable for every audiophile. In the mid 1980s the only way to get this kind of analysis was from $10k+ gear.

I’m kind of in my happy place. A happy place that’s taken me decades to get to.

What about you, have you been living with digital tone controls, and what do you think??
Digital tone controls and DSP are a great way to make your wonderful tube and turntable sound like digital, without the depreciation and instant obsolescence of buying a CD player.
Miller-DSP is a great feature, but even it can’t make a turntable listenable. 
Eric-I really like the parametric EQs available in Roon. Haven’t gotten around to creating and using the convolution filters but they seem like a great way to add digital room correction to your system.
I first bought a TacT 2.2X around 2006, because I thought its DSP was more transparent than the EQ in my Cello Palette Preamp. Some years later, I sent it out to a mod shop in California, who never returned it. So it’s hard to say how it compares to today’s best. In terms of flexibility, I’ve never found its equal.

The ones I’ve tried lately that I think are really clean are the Weiss EQ1 Mk 2 and the Anthem STR Preamp. The latter does its DSP at 192 kHz (not sure of bit depth, but at least 32) and is clean and transparent. ARC when implemented on that device can make changes without diminishing the soundstage or hardening the sound, not true of all DSP units. I think that in the last year or two, DSP for consumer audio really has come of age.