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Test Tone breakdown

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Old Jun 26, 2017 | 08:24 AM
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Originally Posted by yooperhog
no fancy equiptment here, but after 30+ years of grinding and gouging, my ears tell me 32 on KMR-D765 is bout max clean (safe)
Absolutely Yooper! The thing is. You need to leave yourself a little breathing room. Without getting too technical. All sources are not recorded at the same levels. There's peaks and valley's. If guys don't understand that concept the only thing I can tell em is Good Luck!
 
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Old Jun 26, 2017 | 08:27 AM
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Gann doesn't the KMR-765 have Volume Offset for the sources?
The 998 does, but I only use the USB port in the rear anyway.
 
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Old Jun 26, 2017 | 08:38 AM
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Originally Posted by slyedog
998 clean at 35 on low level. Tested many times. Even without communication between 3 of us, AAWAV, Haze, and myself all use 32. One downside to the 998 is the preout voltage is really low till that last 5 clicks or so on volume and ramps up hard each click there after.
I second that - IMHO all A brand HU's will be clean at max volume on Low Level Output.

I "dialed in" at 32 out of 35... In fact the internal protection system of the BT4180 will simply max out (33-35 no increase in speaker volume), besides the fact there is actually no dialing in gains on BT LOL
 
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Old Jun 26, 2017 | 08:46 AM
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For those of you that set the gains at 32-33. What test tone level do you use and at what level is your music when using a USB?
 
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Old Jun 26, 2017 | 09:29 AM
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Originally Posted by Tailwind
If my engine blew up at 80% I would use only 80%.

Depends on the HU. If it distorts at 80, don't exceed 79.

T.
My point exactly
If the HU is clean on Low level outputs at Max volume of 35, then I am tuning to that max

So my system should be safe at Max volume if tuned properly
 
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Old Jun 26, 2017 | 12:17 PM
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2:50 into the video. he is setting the gains with the deck set to Full Volume 35

 
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Old Jun 26, 2017 | 01:22 PM
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However here they do it at 3/4 of Max volume
 
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Old Jun 26, 2017 | 01:24 PM
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I know for sure that I will be blowing speakers left and right if I'll do it this way on the 998.
 
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Old Jun 26, 2017 | 01:44 PM
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Originally Posted by flcusat
I know for sure that I will be blowing speakers left and right if I'll do it this way on the 998.

Thats my fear as well, and I think it may be causing some to pop the magic smoke
I think that if the amp is set for desired wattage from max volume on HU with low level inputs, it will be safer.

Im not confident that I wont roll over the 80% or 3/4 of volume.
I know that the JL vid says that it allows for overlap. But if you set the desired wattage at 3/4 volume on the HU, then you will be over the desired wattage when on full volume.
Thus possibility of over driving amp and or speakers

Now if they are setting gains @3/4 HU Volume and 3/4 of the desired wattage, then I might buy that.
 
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Old Jun 26, 2017 | 03:51 PM
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so has anyone done testing on these aftermarket hu to determine a distortion point? other than by ear?
 
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