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Forum: Receivers, Amps, and Processors   04-05-2017, 11:35 AM
Replies: 87
Views: 2,132
Posted By JHAz
and sugar pills absolutely cure headaches. ...

and sugar pills absolutely cure headaches. Sometimes. But it's not the pill, exactly . . .
Forum: Audio Theory, Setup, and Chat   03-31-2017, 12:39 PM
Replies: 24
Views: 271
Posted By JHAz
FWIW, that is not wiring the amp for 8 ohms. It...

FWIW, that is not wiring the amp for 8 ohms. It is bridging the amp. The amp is only rated for 8 ohm loads when bridged. It's common for the minimum specified load impedance to be doubled when you...
Forum: Receivers, Amps, and Processors   03-23-2017, 08:19 AM
Replies: 6
Views: 174
Posted By JHAz
google equal loudness curves. If you don't play...

google equal loudness curves. If you don't play it back loud, the bass is subjectively "more quieter" than the midrange. To make the bass audible, you have to turn it up. That's what DEQ does.
Forum: Audio Theory, Setup, and Chat   03-05-2017, 05:41 PM
Replies: 183
Views: 2,797
Posted By JHAz
That's actually a different issue. Sensitivity...

That's actually a different issue. Sensitivity of the drivers isn't the point here (you balance them with a resistor in the crossover if needed, essentially). Real sound itself - - in other words...
Forum: Receivers, Amps, and Processors   03-04-2017, 10:07 AM
Replies: 64
Views: 2,386
Posted By JHAz
For the record one of the things I learned when I...

For the record one of the things I learned when I first started coming to this site is that I had been using the term efficiency incorrectly for speakers for a few decades. Efficiency is how...
Forum: Receivers, Amps, and Processors   02-02-2017, 03:59 PM
Replies: 16
Views: 231
Posted By JHAz
Thanks, but isn't that source dependent? When...

Thanks, but isn't that source dependent? When switching between TV, Blu-Ray, and Fire TV the volume is not the same. I know Audyssey calibrated it, but that wasn't using any of those...
Forum: Receivers, Amps, and Processors   02-01-2017, 08:16 PM
Replies: 3
Views: 54
Posted By JHAz
no. Whether you are talking about using the B...

no. Whether you are talking about using the B speaker connection or the biamp mode, the added speakers get the exact same signal as the front left and right speakers.
Forum: Receivers, Amps, and Processors   01-31-2017, 04:57 PM
Replies: 16
Views: 231
Posted By JHAz
Actually a linear scale is even less intuitive....

Actually a linear scale is even less intuitive. If it ran from zero to 100 at 10, there would only be 10 dB of gain left. And it would be really loud.

If you have done the autosetup, the...
Forum: Speakers   01-30-2017, 06:27 PM
Replies: 69
Views: 2,011
Posted By JHAz
I didn't address that, but the source is...

I didn't address that, but the source is incorrect. The reason we don't consider efficiency is because efficiency is a T/S spec, No, and it's not measured in decibels, it's stated as a percentage...
Forum: Audio Theory, Setup, and Chat   01-30-2017, 03:16 PM
Replies: 185
Views: 2,887
Posted By JHAz
What a power amp does, aiui, is multiply the...

What a power amp does, aiui, is multiply the voltage of the incoming signal. That multiplication will yield the same output voltage with a given input, regardless of speaker impedance. Until, that...
Forum: Audio Theory, Setup, and Chat   01-29-2017, 04:24 PM
Replies: 5
Views: 96
Posted By JHAz
If a mixer channel has a mic input, that channel...

If a mixer channel has a mic input, that channel has a mic preamp.
Forum: Receivers, Amps, and Processors   01-23-2017, 07:35 AM
Replies: 10
Views: 126
Posted By JHAz
1. DVDs, which don't have the higher bitrate...

1. DVDs, which don't have the higher bitrate Dolby or DTS anyway, typically used a lower bitrate "version" of lossy DTS and Dolby, and are said to be audibly distinguishable from the lossless...
Forum: Receivers, Amps, and Processors   01-19-2017, 07:04 PM
Replies: 5
Views: 94
Posted By JHAz
According to folks I trust, you can assume that...

According to folks I trust, you can assume that even expensive home speakers start compressing around half of their max rated input power. So they stop getting louder and start distorting more. As...
Forum: Audio Theory, Setup, and Chat   01-07-2017, 11:50 AM
Replies: 13
Views: 231
Posted By JHAz
Lfe is a separate channel of sound in...

Lfe is a separate channel of sound in multichannel recordings. The sub output would contain the not recommended lfe only in the case where you set all the other speakers to large, without engaging...
Forum: Receivers, Amps, and Processors   01-05-2017, 06:46 PM
Replies: 3
Views: 87
Posted By JHAz
-20 dB is 1/100 of the power of 0 dB. If an...

-20 dB is 1/100 of the power of 0 dB. If an analog volume control is linear, it is at half power when it is halfway up. If it is a log volume control it is at half volume, or 1/10 power when turned...
Forum: Receivers, Amps, and Processors   01-05-2017, 08:18 AM
Replies: 41
Views: 1,097
Posted By JHAz
Maybe thinking of something like the Earthworks...

Maybe thinking of something like the Earthworks M30? Although I don't know the diaphragm size . . . might be less than a quarter inch. http://www.earthworksaudio.com/measurement/
Forum: Receivers, Amps, and Processors   01-03-2017, 12:25 PM
Replies: 6
Views: 149
Posted By JHAz
Yep. Solid state amps don't have any problem...

Yep. Solid state amps don't have any problem with seeing infinite impedance, so no damage will occur. Tubes may very well self destruct and take out other components if driven into an infinite load...
Forum: Receivers, Amps, and Processors   12-25-2016, 07:41 PM
Replies: 18
Views: 235
Posted By JHAz
If you are using say 20 watts per channel max a...

If you are using say 20 watts per channel max a more powerful amp cannot put out a different kind of 20 watts than a less powerful amp, once distortion is below audible levels. Speakers cannot see or...
Forum: Audio Theory, Setup, and Chat   12-25-2016, 01:36 PM
Replies: 17
Views: 236
Posted By JHAz
IMO the question devolves into mere philosophy. ...

IMO the question devolves into mere philosophy. The level you intend to listen at defines the power, based on the sensitivity. And vice versa. They are inseparable as far as determining power...
Forum: Receivers, Amps, and Processors   12-22-2016, 07:45 AM
Replies: 30
Views: 499
Posted By JHAz
So Audyssey imposes EQ across the full spectrum,...

So Audyssey imposes EQ across the full spectrum, which is intended to result in the speakers sounding different than without the EQ. When you turn off the EQ by disabling Audyssey entirely (pure...
Forum: Receivers, Amps, and Processors   12-21-2016, 08:05 AM
Replies: 2
Views: 65
Posted By JHAz
DV or DEQ, I forget whether both do this, turns...

DV or DEQ, I forget whether both do this, turns up the surrounds. DV and DEQ presumably don't know that you're listening to stereo through all channels, so they (or it) apply(ies) the SPL increase...
Forum: Subwoofers, Bass, and Transducers   12-17-2016, 01:17 PM
Replies: 11
Views: 259
Posted By JHAz
The REL's measurements are almost, AIUI, the...

The REL's measurements are almost, AIUI, the perfect example of a driver in a small sealed box. That's the natural response of all of them. It's just that other manufacturers build in EQ (and the...
Forum: Receivers, Amps, and Processors   12-08-2016, 07:09 PM
Replies: 11
Views: 362
Posted By JHAz
Just being super picky here. It's not the single...

Just being super picky here. It's not the single power supply, per se, that's the issue. Plenty of powerful and respected amps use a single power supply forall output stages. The problem arises...
Forum: Receivers, Amps, and Processors   12-06-2016, 02:57 PM
Replies: 11
Views: 362
Posted By JHAz
your question is almost perfectly unclear to me. ...

your question is almost perfectly unclear to me. To the extent that, simply changing the amps without changing anything else, volume levels change, that's about the amp's individual input...
Forum: Receivers, Amps, and Processors   12-06-2016, 09:56 AM
Replies: 5
Views: 94
Posted By JHAz
I would guess it is the broadcast. Especially if...

I would guess it is the broadcast. Especially if it isn't intermittent within a commercial or program. Those who use dolby or other systems to expand stereo to surround discovered years ago that...
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