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  1. Electronic Processing/Equalization Devices
    Hi, First post here (though I've read a number of threads in here, especially recently). I have an Onix R-DES and I've recently had occasion to move a few bits of my gear and reconnect and re-calibrate everything. I ran the rather cumbersome procedure for using the R-DES and uploaded (after...
  2. REW Forum
    Hi guys, I have just ran some THD distortion test on my dual FI Q18's and this is on my middle tune which is 17.5hz. I did it to these instructions: Use the RTA Function, set Mode to Spectrum, FFT Length to 131072, Averages to 4, Window to Hann. Use the onboard tone generator in REW, fire up...
  3. REW Forum
    Could someone point me to a how-to (or an example) on measuring and intrepreting distortion graphs? I tried measuring distortion in the latest beta version of REW 5, but I just really didn't know what I was doing/seeing. It was so pitaful that I didn't save the measurements. Thanks.
  4. Remotes | Cables | Accessories | Tweaks
    Hi. I recently purchased the Gizmo for use as an amp for my PC desktop setup. It's driving a pair of Energy CB-5s coupled with an Energy eXL:S8 subwoofer. Now, for the most part it sounds great, except I can hear a bit of what I can only describe as a crackle or fuzzy distortion at certain...
  5. CD-BD-DVD Music | Vinyl Records
    Hello, I have two turntables, the main one being a Dual 1219 with Shure M97 set at about 1.2G for both weight and antiskating. Though I get a fantastic sound on the outside of the disk, I get a tremendous amount of distortion toward the center. I know the fidelity and level will drop towards...
  6. SPL Meters | Mic's | Calibration | Sound Cards
    I pulled this quote from the "mic damage" thread as it is a good introduction into the second part of my question which is typical distortion levels of the 6mm measurement microphones when measuring subwoofers (ie 10-100Hz). I've been able to find very little information on this subject but am...
  7. Home Audio Subwoofers
    Everything I hear about the Rythmik subs sounds great. However, I am troubled by the THD chart as measured by Ilkka (4th chart in the link below). Am I interpreting it wrong? PS- I am actually looking at the F12G, but this is the closest I can find. Would there be differences (aside from the GR...
  8. REW Forum
    Hi! I have been playing around with this wonderfull REW program. Managed to eq my sub with it. Also I noticed that in the spectrum view ( real time), its possible to measure the distortion for a single frequency. I wonder if its also possible to make distortion graphs using REW? Thanks! Marinus
  9. Home Theater Receivers | Processors | Amps
    I finally received my gizmo from the av123 speaker deal I ordered. Its pretty neat but I have a problem. The two sound cards I have that pass audio do it with pcm so the volume can't be controlled. From there the audio goes to my zero dac which then is passed to the gizmo without any...
  10. REW Forum
    i am a complete noob to the software so chances are it'll be something obvious or stupid, but when taking measurements or playing any of the sweeps or waves from the generator along comes with it a digital type distortion from the right speaker which renders any measurement i plan to take...
  11. Remotes | Cables | Accessories | Tweaks
    So we have the speakers thread...what about sources? Right now, one of my 2 Gizmo's is unhooked, but the other is in a system with a Toshiba DVD driving an Oritek-Modified Zhaolu (OMZ) DAC with variable output through headphone jack. It is driving a pair of Cherry ELT525's. I had a problem...
  12. REW Forum
    I find non-linear distortion as objectionable in many ways as linear distortion so was pleased to discover that REW can measure harmonic distortion based on a sine wave input. I'm actually trying to do a range of frequencies and would like to see the combined results graphically. Conceptually...
  13. REW Forum
    I would like to take some distortion measurements of my subs and speakers at various output levels and freq's among other things. How do I do this in REW? I know this seems like a dumb question, but I'm not sure. Is there a prefered way to do this? Do I just take a measurement like normal? Help...
  14. Mitsubishi
    My Model # is WS - 65809. I believe it was Mft. in 2002. For the past two weeks I've had the screen go into and out of a Concave distorted view when viewing my Dish Network as well as cable channels. At first it would correct itself almost immediately, however, the problem is becoming more...
  15. REW Forum
    Hi, Does the program show distortion? I am sure I have seen some reference to it but cannot find it again. I thought it showed up during initial measurements but now cannot find it. If it does show distortion, would it be speaker or electronics distortion or some room artifact. Thanks, Bob
  16. Home Audio Speakers
    I just got the m80's and I have a setting on my AVR to send LFE to Mains, Sub or both. Now, if I'm watching a movie and the LFE dips below the m80 freq, is the speaker going to start distorting or just stop playing the freq?
  17. REW Forum
    Hi I've used John M's advice to take distortion measurements at stepped frequencies and output levels using REW's "Frequency follows cursor" while leaving the distortion and frequency boxes open. The problem is that with rising levels the SPLs become very serious indeed because they go on for...
  18. Electronic Processing/Equalization Devices
    As I mentioned in another thread, a while ago I found something really alarming regarding distortion on these popular subwoofer equalizers. We already know about the quite drastic low frequency roll-off of the SMS-1, but now it seems that it has some other issues too. Here's the frequency...
  19. Home Audio Subwoofers
    so i have my measurements in my thread my first real measurements... so i was watching the movie pulse which i was getting a ton of distortion from the sub... sounded so horrible it was like puttering i guess not exactly sure how to discribe it... but almost like instead of hitting the sub was...
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