Search results
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Why Synergy horns?
Made some cab progress. The general idea for the 8" chamber is to make some sort of back wave trap. Don't know if it is necessary, due to to the cardioid concept, but it works for closed cabs.- schlager
- Post #336
- Forum: Speaker Design
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Why Synergy horns?
Quick and dirty mock-up cardioid speaker, with 15" P Audio C15LF and 8" Eighteensound 8NMB420 drivers. The general idea is to control the dispersion down to the upper bass (100-150 Hz). A cardioid speaker is a hybrid of a closed box speaker and a dipole, so there will not be much output below...- schlager
- Post #335
- Forum: Speaker Design
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Why Synergy horns?
Another weekend, another concert The annual Slay-Town one day festival blasted through the city and delivered some bone crushing metal. Especially Hate from Poland was a demonstration of precision and power with their blackened death metal. That kind of music demands top notch sound, otherwise...- schlager
- Post #334
- Forum: Speaker Design
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Why Synergy horns?
Nick, your findings seems to be oppesite mine, regarding the plastic wrapping. I will try a small test later.- schlager
- Post #329
- Forum: Speaker Design
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Why Synergy horns?
Just for the record, I certainly don't perceive myself as a specialist either. I learn all the time and hope to continue doing so, that is a big raison d'etre for being in this hobby. But back on track, lower distortion equals better resolution. Speaker drivers have mostly 2. and 3. harmonic...- schlager
- Post #325
- Forum: Speaker Design
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Why Synergy horns?
So RCanelas, in your opinion frequency response and even directivity is not the most important factor in a speaker, or how we perceive sound quality? We leave out the room for now.- schlager
- Post #323
- Forum: Speaker Design
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Why Synergy horns?
Hopkins, a dip between 200-300 Hz is most common on many speakers and results from the floor bounce cancellation and as you also found out, this dip, changes with distance. The vertical driver array, when done right, can prevent that dip.- schlager
- Post #321
- Forum: Speaker Design
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Why Synergy horns?
Hopkins, no all drivers play with same volume. A normal 3 way bass, midrange, tweeter speaker will have more lobing. Look at the FR in the area 200-500 Hz in the measurement, it is very even and most speakers will have some room induced unevenness in this area. For example the Dali Epikore 11 is...- schlager
- Post #319
- Forum: Speaker Design
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Why Synergy horns?
One of my goods friends have inherited the legendary Snell Type A Reference System, but it has been out of service for the last 15 years or so, because he doesn't have the space to accommodate them. So he decided to sell them. We have common friend who is a private audio dealer, with a very big...- schlager
- Post #317
- Forum: Speaker Design
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Why Synergy horns?
Nick, you could wrap the Rockwool in some plastic and then finalize it with some cloth of your liking. The thicker the plastic (more layers) the less the absorber will absorb the high frequencies.- schlager
- Post #313
- Forum: Speaker Design
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Why Synergy horns?
Went to Royal Arena in Copenhagen, last night to see one of my Bucket List bands Dave Matthews Band. Unfortunately we sat farthest away from the stage and with the concert hall only filled 2/3 a lot of echoes was present from the empty seats. People are actually very good sound absorbers. Kick...- schlager
- Post #310
- Forum: Speaker Design
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Why Synergy horns?
Ok, so we can't use RT60, but what about the decay waterfall plot, won't they give us a clue about the room sonics, at all? And can't RT60 be used to compare rooms, even if it might not give us any real valuable information about the room acoustic behavior, i.e. a room with RT60 0.5 sec will be...- schlager
- Post #308
- Forum: Speaker Design
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Why Synergy horns?
Watch the video for a demonstration of the two extremes, very reverberant room vs anechoic. Especially the balloon scene is funny. https://www.facebook.com/reel/631905772459665- schlager
- Post #306
- Forum: Speaker Design
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Why Synergy horns?
Ethan Winer seems to disagree that we can't have reverberation in a small room, but using absorbers will detriment that notion. He focuses on the 300-3000 Hz area (midrange).- schlager
- Post #305
- Forum: Speaker Design
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Why Synergy horns?
That would be critical distance https://gearspace.com/board/studio-building-acoustics/821073-can-small-rooms-have-real-reverb.html- schlager
- Post #303
- Forum: Speaker Design
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Why Synergy horns?
DasguteOhr, as Bjorn just explained, we can't use RT60 to determine anything about the sound in the room ;) jokes aside, I think that a specific room reverberation would fall under the subjective department, but I'm well aware of the listening room vs recording room debate. I quite like it a bit...- schlager
- Post #301
- Forum: Speaker Design
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Why Synergy horns?
These are a bit old measurement and more absorption has entered the room since. Left speaker Right Left decay Right Are these measurement useless in terms of bringing information of a system/rooms behavior, to the table?- schlager
- Post #298
- Forum: Speaker Design
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Why Synergy horns?
Well, many still use RT60 for comparison. What about waterfall plot, is that "useless" as well?- schlager
- Post #297
- Forum: Speaker Design
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Why Synergy horns?
Nicktube, in a small room I would go with absorption over diffusion. You will still have lots of reflected sound with relative high amplitude to the direct sound in a small room, so damping the room seems to work best. I have 0.2-0.3 sec. RT60 time above 500 Hz, which can be considered quite...- schlager
- Post #295
- Forum: Speaker Design
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Does DSP belong in State of the Art Systems?
Yes, hence the room target curve becomes a critical point, where small adjustment of 0,1 dB over the entire audio frequency band, aka very broad Q (small number Q), is audible. This room tilt is paramount, to get the right overall sound balance, but is often overlooked or ignored. One will have...- schlager
- Post #632
- Forum: General Audio Forum
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Does DSP belong in State of the Art Systems?
DSP/EQ crash course for Dummies. EQ is for adjusting the room impact in the bass and correct the speakers near field response over aprox. 500 Hz. It sounds most natural, if the sound from the speakers has approximately the same timbre as live musicians would get when performing in the same...- schlager
- Post #630
- Forum: General Audio Forum
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Does DSP belong in State of the Art Systems?
Tim, if you want to get your feet wet, I can generate some filters for you, free of charge :D All you need to do is take left and right measurements of your speakers in the listening position and export them as wav files. REW can do that, or just send me the mdat REW file.Then I can generate...- schlager
- Post #629
- Forum: General Audio Forum
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Does DSP belong in State of the Art Systems?
Tim Link, Audiolense don't run an a Mac, but the convolution filter can. So you can have your filters generated by Mitch Barnett or any other providing that service and then run it from your Mac. Or simply buy a Windows PC, even an old cheap one would suffice, but you will have to check with the...- schlager
- Post #625
- Forum: General Audio Forum
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Does DSP belong in State of the Art Systems?
Lagonda, you may be an audiophool......sorry audiophile, that was a typo, but at least you have humor :p- schlager
- Post #617
- Forum: General Audio Forum
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Does DSP belong in State of the Art Systems?
Lagonda, I hope your hearing is better than your avatar :D- schlager
- Post #613
- Forum: General Audio Forum
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Does DSP belong in State of the Art Systems?
Lalongo, what criteria do you have, as premise for state of the art equipment?- schlager
- Post #611
- Forum: General Audio Forum
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Does DSP belong in State of the Art Systems?
tony22, it is quite unproblematic to flatten the frequency response below 100 Hz, as it is primarily what is called minimum phase issues and can thus be corrected for without a penalty. You will of course have to keep an eye on not over powering the speakers and in this example it is only a mild...- schlager
- Post #604
- Forum: General Audio Forum
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Does DSP belong in State of the Art Systems?
Hear Here, you should learn to distinguish between minimum and non-minimum phase response. That helps a lot when doing EQ and in understanding room acoustics.- schlager
- Post #595
- Forum: General Audio Forum
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