09-Aug-2016, 13:50
(05-Aug-2016, 23:05)Hifi_swlon Wrote: Sridar, bear in mind that (like many settings) the tone control settings for bass/treble can't be adjusted on the fly - they are setup via the configurator, downloaded to the computer, written to the sad card, and then inserted into amp.
There's no specific info about roll off etc as far as I'm aware. I use tone controls a lot while room corrections out of my chain, and I find it incredibly frustrating. For a digital hybrid amplifier with plenty of onboard dsp, the user is given practically zero useful access to be able to harness the power of the system. A 'Dirac-like' custom drawn EQ curve, or multiple parametric EQs - adjustable in real time - would have been a game changer but features like these are always rumoured and never surface!
Since you're technical, also note that you're locked out of modifying config files even though they're plain text. You always have to eject the sad card, configure online, download, write the card, re-insert, and let settings load.
What I was going to try is insert my Tact 2.2XP room correction preamp just before the Devialet. The Tact has a large set of controls for correction of speaker response. First, you measure the speaker in your room. Then, you fit its response to a target curve, chosen from a large pre-supplied set, or simply make one up by hand editing the curves. Then the Tact loads up a digital filter that makes the speaker fit the response you desire (which is usually to remove the bass humps and gently slope the top end down to minimize brightness). In addition, the Tact has exhaustive tone and parametric filter controls. I would connect the Tact to the Devialet using the AES-EBU connection (or one of the other digital connections).
