Bass problems!!!!

BlueFox said:
Not to sound stupid, but how does one know they have, or don't have, a bass problem? Especially at 73 hertz, or some other frequency. Is there an iPhone app for measuring bass? I have the db meter app, but that is just SPL level.

I recently bought a pair of Magico S5s, and I wondered if I should because I kept on reading they have powerful bass, and it can overpower you. Well, maybe they do, but I don't hear it. It is more defined than with the Aerial Acoustics 7T, but certainly not overpowering.

As an FYI, I played these so loud last week the circuit breaker tripped. I suspect it was the bass that caused it, but, while loud, it sounded good.
Click to expand...

Bud, I use Spectrum Analyzer from ONYX Apps on my iPhone for a "quick and dirty" measurement and XTZ analyzer for more in depth measurement.


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XV-1 said:
Not sure it if accurate to lump Deqx into all eq devices.
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True. So I will in this case refer to specifically the DEQX.



XV-1 said:
The DEQX speaker correction is proprietary, there is no one else doing it. It is a unique low latency FIR filter that corrects for both frequency and group delay. It also does DSP speaker crossover and room correction.


Can't say I hear any distortion/noise with my Deqx HDP-4 . It is extremely transparent. That was my major concern before listening to it.

What Deqx unit have you used, as the older generation I believe is less transparent.
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The DEQX HDP-4 was on loan directly from DEQX and they dialed in to do all the measurements and settings. It is a wonderful instrument and does more than one could imagine on a small eq box like that. Of course the computer had to be hooked up in the begining. Once the measurements and setting were done, there was no need for the computer any longer which was nice.

In comparison, the Lynx was simply much cleaner. The problem with the Lynx is that it is a A/D and D/A. It does not have any measurement software or eq software. That has to be all done with other software. Since the room measurements were done several times with difference equipment, the eq was transferred to FabFilter.

The difference is noticeable in 10 seconds of playing. There were multiple people in the room with the same conclusion.

If the comparison was not done, the difference would not be known. Also the system and room was very revealing, hence the instant recognition of the vast difference in how clean the sound was.


XV-1 said:
BTW, DallasJustice now uses Deqx.

DEQX --is your system up to par? - Page 3

cheers
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Very good to know.


The DEQX HDP-4 is very good in performance, value, functionality and is about $4k+. The Lynx is $2.5k plus you need a computer, plus you need the software. So the price is about even or perhaps more for the Lynx if you could the time. My preference was hand down for the Lynx.

I suspect and I have not tried this, that other A/D, D/A high quality units will provide similar, clean performance to the Lynx. These are all pro gear, along with the Ayre. For home use the DEQX is much simpler to use. I stumbled onto the Lynx, face first, not that I was looking for it. So it did hurt to see this cheap unit beat even some very expensive DAC's in just DAC performance.

The A/D circuits, I understand from various sources, are very good. Which makes a big difference.
 
BlueFox said:
Not to sound stupid, but how does one know they have, or don't have, a bass problem? Especially at 73 hertz, or some other frequency. Is there an iPhone app for measuring bass? I have the db meter app, but that is just SPL level.

I recently bought a pair of Magico S5s, and I wondered if I should because I kept on reading they have powerful bass, and it can overpower you. Well, maybe they do, but I don't hear it. It is more defined than with the Aerial Acoustics 7T, but certainly not overpowering.

As an FYI, I played these so loud last week the circuit breaker tripped. I suspect it was the bass that caused it, but, while loud, it sounded good.
Click to expand...

2 ways to do a quick test.
1. stereophile test tones on the test cd. Start with 20Hz. Use an app on you phone. You will miss the lower frequency however you should see a smooth rise in frequency as the rolloff dissappears. You can "earball" it also. As you increase frequency, you will notice some tones louder and others softer. The peaks and dips are sometimes very narrow so if you have big gaps in your frequency tones, you might miss the gaps and peaks.
2. Use a measurement mic or even your laptop and this very easy to use software called gram. You can get it from here. Index of /~dab/310/classes
It was built for nt/windows 95 but still works on windows 7 and xp. I have not tested on Windows 8. You will get a curve of the bass and of your room. Play white noise that you can download from a lot of places or you might have that on your test CD. This will not only tell you about your bass but also about your room at the higher frequencies.

Have fun but be prepared for what you find.
 
Last night I was trying to solve a slight hum coming from my left speaker. Normally I would take one thing out of the chain at a time to determine the cause. Instead, I decided to go au naturel and I removed all power conditioning units, both subs, all unused cables and the DSP. No more hum. Dead quiet backgrounds and uhhhh....four hours later....I had to force myself to go to bed.

Experimentation is fun, but it's always important to check and recheck your hypothesis. Meaning, the DSP and conditioners giveth and they taketh away.

Back to the drawing board.


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Mike said:
Last night I was trying to solve a slight hum coming from my left speaker. Normally I would take one thing out of the chain at a time to determine the cause. Instead, I decided to go au naturel and I removed all power conditioning units, both subs, all unused cables and the DSP. No more hum. Dead quiet backgrounds and uhhhh....four hours later....I had to force myself to go to bed.

Experimentation is fun, but it's always important to check and recheck your hypothesis. Meaning, the DSP and conditioners giveth and they taketh away.

Back to the drawing board.


Sent from my iPad using Tapatalk HD
Click to expand...

Mike, what "preamp" was involved with this test? "Cabernet Sauvignon", "Syrah", "Verdello" etc ..... did you use an aerator before critical listening & was the vintage of acceptable year. I have found in the past an Australian "Shiraz" lends to a large & forceful buzz.
 
sharkmouth said:
Mike, what "preamp" was involved with this test? "Cabernet Sauvignon", "Syrah", "Verdello" etc ..... did you use an aerator before critical listening & was the vintage of acceptable year. I have found in the past an Australian "Shiraz" lends to a large & forceful buzz.
Click to expand...

Definitely a nice cab Sav.


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