Tone Controls can be so nice.


Of all the ways to tame, tighten or tone the sound of our systems, cables are usually the first to come to mind. Preamps, amps, source and speakers are all chosen for what and how they contribute to the sound and each affect the other in ways that confound, amuse and satisfy.

Anyone who's paid even scant attention to what I like in my system knows that I've always wanted to hear further into the recording, extracting as much as possible from those shiny discs and not pay the price of loss of tone, richness or body. From sliver ICs to power conditioning and boutique fuses, each step has gotten me closer, revealing more detail, nuance, air and realism.

One day while listening I chanced to look at my Marantz PM-15S2b and it dawned on me that I hadn't tried the tone controls since the first time I tried them when new. I didn't like it then. Just switching it on without adjusting the controls it was evident there was a difference for the worse when used.

Time can do funny things. It may be due to something as simple as break in but when I engaged the tone control setting and adjusted the bass a tad (1 1/5-2db) a lot changed. Everything I liked about what I already have was fleshed out some more without a single, negative drawback. Tone improved. So did body. Percussion was easier to believe be it wood, brass, etc. Vocals had more chest and in the room presence. Piano had more weight, guitar more blues and twang (steel easier to tell from nylon). Even decay took on a different quality since the lower portion of the notes had more presence which led to a longer, more believable decay. Decay used to be the in the realm of the higher notes, the lower ones foreshortened, and now decay is across the spectrum which makes piano, upright bass, anything in that realm all the more authentic.

I dialed it back to just about a 1db boost and still had that magic. Nothing was shelved back, hidden or muted as a result. Just fuller, like a really good tube setup with great see-through ability. No bloat. No smear.

It's too bad that tone controls aren't in vogue nowadays. Blame the purists and thank those that still use them (Marantz, Luxman, Accuphase, etc.) I'm not advocating some all out assault with extensive equalization but in my case the bass boost is just at the 50Hz region and covers a small, but critical range for folk like me. My Tonians drop off at 40Hz and the drop slopes well before that. That little boost is all it took to even the frequency playing field, so to speak, making it seem all the more real. This is not to say I didn't have bass to begin with. What I did have had texture, detail, nuance but not enough force to have equal billing in the presence department.

If I had speakers that extended lower, all of this wouldn't matter. In my case it did. This is not to say that everything is better with tone controls but is some cases, certain recordings can use that little bit of boost and some systems, like mine, can benefit from it. It's been only a few days since I've done this but I've yet to tire of it and find myself loving what I'm hearing. Who knows?

All the best,
Nonoise
128x128nonoise
I have a Luxman class A integrated with tone controls and a bypass button. I don't mess with the tone controls. I also use a Rel Stadium 3 sub. I do on occasion only use the top section of my Parsifals. This helped me understand how bass and room interaction make up 99 percent of the listening experience. Always trade-offs. If my next life involves audio I will master the room first.
Problem is even a treated room won't give a flat response all times. I know as I have a treated room. A treated room is a starting place.....
Thank you all for your civil responses, whether you agree or not with my findings, and thanks Al, for that pat on the back.

As much as I used to be a "straight wire with gain" kinda guy, this matter with the tone control helps in ways I thought not possible. Again, YMMV. :-)

All the best,
Nonoise
Tone controls are not designed for room correction, but are intended to offer 1)correction of problems with source material and 2)mild accommodation for listener preferences. If for some reason a recordings has excess high frequency info a tone control won't eliminate the problem, but can go a long way towards making the recording more listenable. If you like to listen at low volumes (less than 65db), then you need tone controls to correct for the Fletcher/Munson ear sensitivity effect.

Room correction EQ is far more sophisticated than tone controls. A simple application is to use a parametric EQ to correct for the primary bass mode that occurs in every listening room. Vandersteen uses such a device in their higher end loudspeakers. Getting the bass right results in major increases in clarity/definition throughout the frequency range.
Mensch,
Sounds like a duck, walks a duck.
You certainly did make a declaration.
That's what these forums are for.
Enough with the jabs.