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In the Forum: Audio Discussions
In the Thread: A listening room for a domesticated Cat?
Post Subject: Promising....Posted by Romy the Cat on: 10/8/2017
Spent today a whole day moving the boxes, do some measurements,
fighting with REW interface, thinking, some listening… Found some bugs in the
system that I think screwed my initial feeling. The bugs were mostly by Thomas
the Son touched what he should not be touching…
Anyhow, upon further experiment I did fine a nice configuration
that it feels like sound very nice. On the specs it is kind of ridicules but if
to look deeper than it is a very proper revers response of my room and the
sound is surprisingly well balanced.
The left channel, the one that has a well formed corner, has
4 drivers line array with pimpled driver. Yep. Juts 4 driver, extra two drivers
is too much. It has second order low pass filter at 20Hz, so the entire bass is
sitting on the transitional slope. I get 0db at 23Hz and then 12dB dive. The channel
pushed +6dB at 50Hz, which is perfectly fine. The line array is time-aligned. The Midbass is
sitting atop of the Line-array, it is one sealed Vitavox with 50-125Hz band
pass, first order. The Midbass is inverted and not perfectly time-aligned but
phase-aligned. Well, it is time-aligned
to the top driver of the array, whatever it worth… The moving of the Vitavox with
an inch hugely affect everything and primary and surprisingly the sub 20Hz
region…
The right channels, the one that has no corner and has a lot
of open space to the rest of the house has 6 line-arrayed pimpled drivers. It is
30Hz, first order, time-aligned. The Midbass is the same 50-125Hz band pass,
first order but siting on the floor, elevated for 30inch, time-aligned.
So, it is kind of strange configuration but sonically it is
very easy for ears, and compensates the acoustic asymmetry of my room very nicely.
I do not know if it is the last version but it is the very best that I have in
this room so far. The important factor to me that I do not have now the tonal
problem with bass, it goes very low with no overblowing and tonally it is not
problematic anymore. Also, it is lash and gently decaying: the idea to keep first
order on the channel that has no walls was a brilliant in my view.
I also found a way to deal with my video sound: I run digital
out from OPPO to Lavry Gold that has 1.5V output voltage, enough to drive the
thing loud enough. Rerurn to Romy the Cat's Site