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In the Forum: Audio Discussions
In the Thread: A listening room for a domesticated Cat?
Post Subject: Some listening today.Posted by Romy the Cat on: 10/2/2017
Spent great time and with happy with result. Not the results
are so spectacularly good but the playback is back to be operational that I was
missing for a while.
Starting with films. The damn OPPO has not enough output for
my Milq. I decided to get rid any SS amps for now and pilot speakers, unless
until I will be able to make my SS amps to have higher input impedance.
When OPPO drive Milq I do have OK sound but I have no volume, I need ether drop
a feedback in OPPO output stage or to put a nice proxy preamp with gain between
OPPO and my unity gain Placette. I have Yamaha C-4 that I employed to the duty
but it gave me so much compression that it is hard to listen. I need probably
go for all of those DIY people who tweak OPOs output and too see if I can swing
it to 2-3V. Still, I sat down to listen a Lincoln Center’s Sweeney Todd
recording from 2014, with great Bryn Terfel and was not able to stop watching
it. Regardless the sound, I miss these experiences: to veg out in the
listening chairs and let the world to pass by in front your ears/eyes…
Music. Good and bad. I set the left channel, the one that
have a solid corner in there, and did some measuring. I would need a second
order low pass filter in there at 20-25Hz. Yep, it has 20Hz and then runs all
the way to 70sHz with extra 6-8dB, a LOT of bass. Putting it on the transaction
12dB slope at 20-25Hz should kill the problem. Overall listening of both channels
is surprisingly pleasant from amplitude perspective. The overall sound is a bit
“heavy” but tolerable. The 6-8dB peaks are very narrow and being incorporated
in the overall first order poll they are not so prominent. I would say I need to kill overall 2dB from anything
under 100Hz and the sense of “heavy” should be gone and I will be seeing how individual
amplitude irregularities affect listening experience. Tonally I hear some very pleasant
overtone from midbass, pleasant. However, the so much desired long decay that I
am so much straggling to get has not so pleasant tone. The legendary North
German Radio Symphony recordings in Lubeck do not sound as orgasmaticly
wonderful they should, the “royal” sonorities are not there. At this point it
is hard to propose the reasons, I need to make the sound properly balanced overall.
I have ordered a few Jantzen 14 AWG C-Coil Toroidal Inductors, will do the
precise crossovers to dial into the room. The last aspect that I need to mention
is imaging. Not that it is important itself but imaging is a very easy and very
easy to observe side effect of phases processing and time-alignment, which have
a huge impact into musical engagement and human interaction with playback. My
first sentiment was that it was a disaster. From a VERY stunning imaging I had
when the Vitavoxes midbass were sitting time-aligned I went to very ugly imaging
when neither midbass nor lower bass very much no time- aligned. I for sure have
my 20Hz now but I need to think about my priorities again. I did not experiment with imaging in new setting
but it was way worse then I expecting. Ether something is accidently running out of phase
in there (with 14 channels it is easy to lose it) or my parley into “phase
joker” with my midbass is a stupid idea that serve only my amplitude objective.
I will continue to play with what I got myself into but despite
all negativism I am very pleased with the result. You see, this week did show
to me that I can go away with Milq driving my bass line-array with juts 6
driver. That was something that I did not know before and I find it very encouraging.
I just need to find a way to make it to
work.
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