Here is the revised crossover used for latest measurements and for blind test.
Typo on above diagram, should be this:
Attachments
Good job indeed
Hi X,
Just went through the blind test clips - via the headphones (Philips SBC HP1000) and via the studio reference monitors (Pioneer S-DJ08). I will not tell here what vote I made, but I know I made the right choice 😛
The speaker actually sounds very good - very natural, close to original tracks. I have even found a lossless copy of "Highway to hell" in my library and compared to that one ))
You know, if someone would not know the clip went through the amp, the speaker and the microphone, he would likely not recognize it's not an original track 🙂
Low distortion, good tonal balance and definitely a good job with regards to phase alignment (means so much in audio!) - based on what I hear.
Cheers,
Valery
Hi X,
Just went through the blind test clips - via the headphones (Philips SBC HP1000) and via the studio reference monitors (Pioneer S-DJ08). I will not tell here what vote I made, but I know I made the right choice 😛
The speaker actually sounds very good - very natural, close to original tracks. I have even found a lossless copy of "Highway to hell" in my library and compared to that one ))
You know, if someone would not know the clip went through the amp, the speaker and the microphone, he would likely not recognize it's not an original track 🙂
Low distortion, good tonal balance and definitely a good job with regards to phase alignment (means so much in audio!) - based on what I hear.
Cheers,
Valery
FF85K RS225
Hallo.
Yes i also like the little Fostex.
I have problems to open the asc. files- so i couldn't give comment, about. Bad.
Mine is playing in a little helix horn without XO- for my opinion it preserved the
most of its own magical, because the clever Japanese engineered technical details.
With adding a woofer like Scan Speak 26W/4534G00 Discovery Fs-23Hz in open baffle activated by subwoofer module you also have setup for lazy ones, just like me.
But i know and respect it much what X is working out in short time.
One Question to Valery: Why you spent so much money for active Pioneer
Monitor? I must a bit stir. 😀
I have seen on seller page how budget speaker they build in- i don't see why it have much costs, only to make profit.
You are a professional in my eyes and can find better options.
Hallo.
Yes i also like the little Fostex.
I have problems to open the asc. files- so i couldn't give comment, about. Bad.
Mine is playing in a little helix horn without XO- for my opinion it preserved the
most of its own magical, because the clever Japanese engineered technical details.
With adding a woofer like Scan Speak 26W/4534G00 Discovery Fs-23Hz in open baffle activated by subwoofer module you also have setup for lazy ones, just like me.
But i know and respect it much what X is working out in short time.
One Question to Valery: Why you spent so much money for active Pioneer
Monitor? I must a bit stir. 😀
I have seen on seller page how budget speaker they build in- i don't see why it have much costs, only to make profit.
You are a professional in my eyes and can find better options.
In Windows right click on file and pick rename and change .asc to .mp3.
Or in Windows explorer, click once on file wait 2 seconds and click once more to get into rename mode.
In Mac ?
Or in Windows explorer, click once on file wait 2 seconds and click once more to get into rename mode.
In Mac ?
Hi Hagen,
I do some mastering from time to time - those monitors are very good for the purpose, especially bearing in mind I'm very much used to the way they sound.
Near field active monitors are rather special creatures - they are designed for being used close to the listener (1.5m or so) and have got carefully corrected amplitude and phase responses for being as linear as possible particularly for this kind of near field usage (active crossovers). So, they are not good for listening, but good for mastering. By the way - their remore control is excellent - very handy.
In my home audio system I'm using Monitor Ausio RS8 speakers and CF-FET V2.0 amplifier (DIY section of my web site).
Cheers,
Valery
Vzaichenko,
Thanks for the kind words! Glad you found the sound clips acceptable and good to hear you have reference monitors that you can go to and depend on. Your CFA amp looks very impressive. Maybe I will build that someday - is there a big difference in sound quality between that and VHEX+?
Cheers,
X
Thanks for the kind words! Glad you found the sound clips acceptable and good to hear you have reference monitors that you can go to and depend on. Your CFA amp looks very impressive. Maybe I will build that someday - is there a big difference in sound quality between that and VHEX+?
Cheers,
X
CF-FET V2.0 is an interesting one. Very simple symmetric gain stage with low impedance feedback loop. It's got not the lowest values, but very "pleasant" harmonics profile.
Key features - high slew rate and high current capability at the output. Speed and power. Remarkably flat phase response. See attached.
Soundwise - extremely natural mids and highs and highly "controlled", elastic bass - well, some people consider it "too much controlled". Especially good at higher than everage listening volumes - it does not sound "stressed" at all. Drums and cymbals sound fantastic.
On the other hand - I like VHex+ at lower volumes. Bass is slightly less "sharp", overal sounding is more "chamber", very comfortable one.
Cheers,
Valery
Attachments
That's a very impressive square wave with insane slew rate and no overshoot. !?
Phase is utterly flat so I can see why you like it. I like the VHEX+ sound very much and feel bass is right on accurate and stress free. Thanks for the explanation. It's interesting how you are able to get a low cost vertical hexfet designed for power switching to sound so good and linear in audio.
High non-linear input capacitance is not really an issue if you drive it the right way 😉
On my Mac, one-finger tap on touchpad, wait two seconds tap again. Erase asc and type mp3
Left corner click touchpad and same procedure as above works also. But it depends how track pad is configured....
Maybe there is a quicker way, but this is how I solved it.
Peter
Also, tapping the track pad with 2 fingers with the pointer on particular file brings up a context menu.
Then "Rename", etc.
Then "Rename", etc.
Clik the name, then a 2nd clik will allow you to edit the file name & extension. The timing of the clicks can't be 2 close or it will be a double-clik and you end up opening the file.
dave
Yes, one finger tap on touch pad, then return is also ok. It makes it possible to change asc to mp3 manually....
Peter
Hey X,
I've been thinking about this design and your RS225/10F design, and after reading both threads I have some ideas, and questions.
I'm interested in building a pair, borrowing from these designs quite a bit. My goal is a relatively small 2-way design that I can use as a set of reference speakers. I'm enjoying building many different amps, pre-amps etc quite so much, but I am always wishing I had a set of reference speakers to really evaluate these with.
Listening would primarily be in a small room, ~19'x15' with ~9'-11' coffered ceiling.
As I have a new pair of FF85Wk's on hand, I thought I would try those first with the rs225's, though likely upgrade to the 10f's, depending on performance.
My idea is to build two separate enclosures, 1 for the rs225 @ ~24L, and another for the ff85wk/10F using your dagger TL style 3 sided pyramid. Partly to allow me to 'set back' the TL/driver on top of the woofer unit. The impetus being:
http://www.diyaudio.com/forums/full-range/273524-10f-8424-rs225-8-fast-ref-monitor-65.html
This is where some of my questions arise.
I see mention in the 10F thread of the TL being sealed and ~1.1L. Interior dimensions being ~6" x 12"-12.5" IIRC.
I am going to build some quick and dirty enclosures for both to test the drivers in before nailing down the design. Ultimately I'll use ~25mm baltic birch for the rs225 enclosure and ~18mm for the TL.
I have a spare mini-dsp 2x4 for prototyping, but ultimately I would want a passive xo.
Any guidance you can offer as to volumes to start from for the enclosures, etc. would be greatly appreciated.
I have a UMIK-1 for measurement and testing, and will likely put together a jig/box for use with ARTA to get real world T/S params. These bits are new territory for me, and some I am looking to learn.
Thanks!
Gable
Well, I posted too quickly. After reading the 10f thread further, my questions have been answered! hah.
I'll start my own thread, but needless to say I'm making some test boxes and ordering the drivers to try it out.
Thank you for documenting your work and experimentation so well X.
~Gable
I'll start my own thread, but needless to say I'm making some test boxes and ordering the drivers to try it out.
Thank you for documenting your work and experimentation so well X.
~Gable
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Now that I look closely at the response, how is the rs225 not audible past the XO? The breakup is less than 20db below tweeter. That's gotta sound a little harsh.
A fine question, and really, at the price point of the TC9's I might as well test them.
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