maty
Major Contributor
If you dare, open a new thread about it and I will comment on it what I have learned these seven years (June 2013) with them. With pictures, graphs, files... I have many information about Q100 and other KEF coaxials.
Due to their smooth directivity the Q100 can be EQed to even higher perfection, so equalizing the listening window smoothes thus also the predicted in-room response nicely:
View attachment 53808
(upper curves are LW and PIR without and the graphically offsetted by -10 dB curves are LW and PIR with my 10 PEQ).
Please feel free to contact me if you need the filter coefficients.
I was wondering if @Maiky76 is interested in and would have the time for feeding this into his optimizer? Would be interesting to see how close the manually derived coefficients are to algorithmically generated ones. Would also compare the two options in-room once I have a DSP added to my setup.
Type Freq Gain Q
PEQ 94.5, 2.33, 2.02,...
PEQ 749.0, -2.10, 5.34,...
PEQ 947.5, -1.95, 6.73,...
PEQ 1265.5, -1.89, 5.98,...
PEQ 1675.0, 1.38, 2.09,...
PEQ 3501.0, 1.10, 2.01,...
PEQ 4981.0, -1.30, 2.97,...
PEQ 6800.0, -1.35, 3.44,...
PEQ 11265.0, -1.02, 2.70,...
That is excellent, thanks!HI,
Here the Optimizer output:
No EQ Spinorama, Score: 5.04
View attachment 85282
The EQ design, EQed score: 6.33
The LW is boosted so caution applies when play loud to avoid bottoming and destruction of the speaker.
As for the LS50 the speaker do appreciate a slope to achieve its best score.
View attachment 85281Code:Type Freq Gain Q PEQ 94.5, 2.33, 2.02,... PEQ 749.0, -2.10, 5.34,... PEQ 947.5, -1.95, 6.73,... PEQ 1265.5, -1.89, 5.98,... PEQ 1675.0, 1.38, 2.09,... PEQ 3501.0, 1.10, 2.01,... PEQ 4981.0, -1.30, 2.97,... PEQ 6800.0, -1.35, 3.44,... PEQ 11265.0, -1.02, 2.70,...
The updated Kef Q100 EQed Spinorama:
Really similar to the LS50
View attachment 85284
The Regression/ Tonal, the ON is pretty flat now
View attachment 85286
The zoom on ON-LW-PIR
View attachment 85285
Probably better listened to slightly off-axis around 10degView attachment 85294
And the radar comparing the EQ version and the No EQ version:
Decent gains
View attachment 85283
the rest of the data is attached
Really similar to the LS50
Hello all, thanks to the other discussion thread on EQ, I'm trying my hand at EQ-ing my KEF100. I'm sorry for what may turn out to be a longish post, on an old thread, but I'd appreciate any guidance/help/insight.
This is the first time I'm using REW and I'm really a novice at this so please excuse any evident incompetence.
Thank you to thewas for post #75 (and filter file) and to Maiky76 for post #444 I tried both of those filters. First impressions on some songs it made a huge positive difference (e.g. for Brandi Carlile "The Story" and "The Joke" made those high notes much more tolerable, though I still think those could have been recorded/mastered a lot better), and for others I wasn't sure I liked it (e.g. Chris Cornell on "The Keeper" felt a little less wide, seemed to cut down on echo that made it sound larger, not sure if this is right, just my own impression).
Anyway, I also played with REW to see what it would show me. Here's something with like 15 averages positions on my couch (1/24 smoothing), port was plugged, dust covers on:
View attachment 100330
I used the house curve given on this tutorial (I'm sure others have run into this video) and tried to get a set of recommended filters for that house curve, and got this:
View attachment 100334View attachment 100335
I also tried importing the filters mentioned above which gave me these:
View attachment 100332View attachment 100333
Any thoughts as to what might be optimal filters from my situation? Anything I should be trying differently?
Thank you,
Dori
Thank you Steve, that helps! I am wondering what's going on with those big dips around 60-70Hz, and around 200Hz, are those room modes in both our cases as they don't seem to show up in Amir's graph? Not sure if the scaling and smoothing is also affecting it.
the bmr's sure seem to show a lot more (upper) mid range presence.. and i agree , there's probably a lot of room "sound" from the 1000 k hz on down..It is the room.
I hate to post this spoiler from the review I am busy writing, but take a look at this. The graph shows in-room response of my Dynaudio X18 speakers vs. loaner Philharmonic BMR speakers. You can see the room dominates the sound under 500Hz in my office: both plots track each other closely in the peaks and valleys.
View attachment 100486
You could make the a good argument for the room dominating the sound under 1000Hz!
These are my Q100s in my very large living room. The speakers are stuck in a bookcase next to a wall of windows on one side of the room and sit 5 or 6' apart. The measurement was taken at a recliner directly in front of the speakers, about 12' away....
My main issue, I couldn't really find any other bookshelves besides Q100 (bought on Amazon for $245) that could actually be put on a bookshelf! Most other "bookshelf" speakers assume your bookcases have an open back and 2 ft of space before the wall, and also your shelves are at least 15in/38cm high and as deep.
But you loose also almost 6dB SPL around the port tuning region, meaning quite higher distortions and IMD when listening at the same volume as before.My modded KEF Q100 has the same problem -> now is sealed. With PEQ I recover the lost bass -> more clear sound and bass.