- Thread Starter
- #61
Should I return the HS5 to guitar center and get the HS7 to test? Or do we already know what that one does?
That, is standardized as I explained in the review. Soundstage uses 90 dB at 2 meter which is what I used. That translates into 106 dB at 1/3 meter which is what I tested at (soundstage uses 96 dB at 1 meter). So all distortion measurements are comparable to what soundstage is using. Which is also very close to what you are asking.Standardizing distortion measurements by spl/distance eg. 95dB/1m 1kHz would help comparisons.
As explained, this is the beauty of the system. Once the setup is done to tell it where not to go as to hit the speaker, the rest is automated and takes about an hour. It then takes me another hour to document the results and do some listening tests. Compare this to entire weekend people spend measuring speakers outside and such.@amirm, just wow! That was lightning fast. Yesterday you were just about to order it. How is it possible?
Some speakers have been sent and more are coming. The reason I bought a few is that I like to as quickly possible build a baseline of measurements and sound quality of speakers so member speakers can be judged more easily. And that we have better coverage of a category of speakers (budget ones in this case) than random sampling of what gets sent in.I thought people were sending in speakers to measure, is that not happening as much as you hoped? Do you happen to have a relationship with any Hifi shops in the area? They may let you take a display model of speakers to measure, they may want a deposit but it shouldn't cost you anything. It would be nice to get some measurements of some brands like KEF, Monitor Audio, Paradigm and other high end brands that are short on measurements.
So far yes. They are all powered mini-monitors so I have them flanking my monitor just like I had the NHTs there before. That means they are pointed at me and about a 1 foot from the wall behind them. There is nothing behind me for 40 feet. Ceiling is slanted and goes way up as well.Amirm, when you listen to speakers are they always set up the same way?
Why not just add a small class D amplifier on the desk, like an NCore MP based?I plan to create a new area to test passive speakers as I have no amp on my desk. And may test powered monitors in the same spot.
A neat thing happens in that you get a second impulse at negative time that represents distortion. Apply an FFT to it and you get the distortion present at all frequencies.
Put another way, at any point on the distortion graph that I showed, you see the sum total of distortions existing at that frequency. It is not the THD+N measurement of distortion at that single frequency tone.
So far yes. They are all powered mini-monitors so I have them flanking my monitor just like I had the NHTs there before. That means they are pointed at me and about a 1 foot from the wall behind them. There is nothing behind me for 40 feet. Ceiling is slanted and goes way up as well.
I plan to create a new area to test passive speakers as I have no amp on my desk. And may test powered monitors in the same spot.
Hi Amir,
This measurement correlates well with the ones published by Yamaha in The owners manual.
This is another example of a bi-amped, but passive crossover speaker.
To me it appears that crossover design was intentional to yield a particular response.
Half the time I don't have enough room to put my glass on the desk let alone have room for an amp.Why not just add a small class D amplifier on the desk, like an NCore MP based?
Yeh, I have heard those once. Anyone want to second this? Hate to buy it and someone saying it isn't a real Genelec.
I wouldn't choose the 8010A, since it's the only model that doesn't sport the Genelec textured waveguide (baffle is probably too small) and is a few years older than the 8020D/8030C.Yeh, I have heard those once. Anyone want to second this? Hate to buy it and someone saying it isn't a real Genelec.
Amir, have you considered testing the Presonus Eris 5xt model? Small 5" active monitor with an elliptical waveguide. I am looking for some smaller desk monitors and would love to see the performance these offer.Half the time I don't have enough room to put my glass on the desk let alone have room for an amp.
Sure. In far field this just changes the amplitude and nothing else. In near-field however, it does show the wavefront in 360 degrees. It can even animate it! This is the static one at 1 kHz:It would be very interesting to display the deviations of the frequency response by choosing different listening distances. Is this possible by the software?
OK, I ordered it. At some point you all need to chip in to buy these as I am not too fond of just having hot dogs and chips for dinners.Amir, have you considered testing the Presonus Eris 5xt model? Small 5" active monitor with an elliptical waveguide. I am looking for some smaller desk monitors and would love to see the performance these offer.