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hornet burn stages - Page 3

post #31 of 104
Its also hard to measure patience. I listened to my portable rig this weekend some. It sounded really good to me (150ish hours worth of burn in - 7 days) Has been back in the drawer burning in this week. Leaving next Wednesday for a longer trip and some flights. The hornet should be at the 350 hour mark, and I will see if I can tell any difference. I doubt my ears are up for the discrimination, but has been a fun experience with this amp. Even this weekend listening to some bluegrass (Nickel Creek) I had the sense of the mandolin string vibrating, a bit more than just the sound itself.
post #32 of 104
I'm guessing the ones who are saying that burn-in is all psychological have not owned a Hornet.
post #33 of 104
Quote:
Originally Posted by Bones13
Its also hard to measure patience. I listened to my portable rig this weekend some. It sounded really good to me (150ish hours worth of burn in - 7 days) Has been back in the drawer burning in this week. Leaving next Wednesday for a longer trip and some flights. The hornet should be at the 350 hour mark, and I will see if I can tell any difference. I doubt my ears are up for the discrimination, but has been a fun experience with this amp. Even this weekend listening to some bluegrass (Nickel Creek) I had the sense of the mandolin string vibrating, a bit more than just the sound itself.
Two recomendations to hear -- especially with the M-Hornet: Listen to Alison Krauss & Union Station's recent disk "Lonely Runs Both Ways" if you can. Beautiful tunes, great sonics, great performances, heavenly Alison & heart-tugging Jerry Douglas dobro. Also Bela Fleck & The Flecktones "Three Flew Over The Cuckoo's Nest" (It's their only disk I have, but it's really great -- fast and energetic with lots of strings, percussion & slam.)
post #34 of 104
Quote:
Originally Posted by Pete7
I'm guessing the ones who are saying that burn-in is all psychological have not owned a Hornet.
Or a K501. I think PinkFloyd once remarked that it took like 600 hours for that baby to settle in! And I believe him too!
post #35 of 104
Thread Starter 
let's also not forget that measurement devices currently used are not as sensitive as the human ear. assuming that you're listening to your gear with a human ear that is...
post #36 of 104
Quote:
Originally Posted by ouchia
let's also not forget that measurement devices currently used are not as sensitive as the human ear. assuming that you're listening to your gear with a human ear that is...
That's only partially true. It depends on what we are trying to "measure". For amplitude, frequency, stereo separation, THD, and all the common measurements given, measurement devices are millions of times more sensitive than the ear.

The smallest change in amplitude that the ear can detect is about 0.3dB for a pure tone. However for most people this is closer to 0.5 to 1.0dB, or a 10% change.

The smallest detectable change in frequency we can detect is 0.2% in the 500Hz-2KHz band. In what can be expressed in percentages, this is the most sensitive the ear gets.

The smallest amount of harmonic distortion the ear can detect is generally going to be about 1% for low-order harmonics, or 0.3% for crossover effects. A telephone is 10% THD, and most solid state amps are 0.005% or better in THD. But THD is of limited use in predicting how an amp will sound subjectively. Intermodulation distortion is a more important figure (and less often given), however THD graphs can give the observer a better idea of where and why a non-linearity exists.

Where the ear excels...the human ear is at it's best in placing sounds in a 3D space. We can determine the location of a sound much better than a machine. The human ear is also superior to machines in recognizing patterns such as speech. This makes sense as these abilities provide an evolutionary advantage. We could probably do an excellent job analyzing binaural recordings in comparing them to the setting in which they were recorded.

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post #37 of 104
Arrived home today.

Opened one of the Hornets #9366
(#9368 remains sealed)

Gave a quick listen to veryify operation (first impression, much better bass and mids than nano, highs appeared over stated a little on the schrill. Only listened to 30 seconds of three songs to veryify operation)

4gb nano with apple lossless

RS ~ cheap connector 1/8 ~ 1/8, so ipod can be left on and charging

RS ~ 250Mah battery, hornet connected to wallwart

Shure e5c (500hrs +/-), impedence set to low

Volume second gold division from left start

Starting at 20:00 MST 9-28-06

Playing a mix...classic rock, folk, R&B

I plan on burning 9366 for ??? hours before comparing, I was thinking 100 ~ 200 ~ 300

I am quite new to headphones, but have been an audiophile for years, building numerous 2ch based speaker systems since 1978, my preference is vinyl through tubes. I also have a set of e4c, old (late 1970's) Sennheisers, RS-1 (20-50 hours). Will use e5c and RS-1 and also ALO silk docks (I have 2 that are brand new) for listening and evaluations.

I will try a RS digital SPL meter before impressions, to try and attenuate the gain equally (have cd's with test tones). (appears to be using quality parts, volume knob appears and functions, with quality, am assuming gain should be rather close out of the box, ideally the volume should be within 0.5-(1dB max), will try my best.)

What have I missed?
post #38 of 104
I don't think you missed anything! You might want to blind test the comparo when you do it tho, by having a trustworthy pal swap amps randomly back and forth when you do impressions.
post #39 of 104
Or try and make a recording at each significant hour of burn in.
post #40 of 104
Thread Starter 
you might want to do a 400 hour mark check as well, since people are saying that it's the new mark.
post #41 of 104
Quote:
Originally Posted by ouchia
you might want to do a 400 hour mark check as well, since people are saying that it's the new mark.
With the amp I have, in particular, the bass finally stabilized at around 400 hours. I can't say that every amp will follow exactly the same pattern, so my comments are just a reference to my experience.
post #42 of 104
If I believe in burn in or not is immaterial and to some degree none of anybody else business. I say this with the best of intentions, that is we have posters here stating that burn-in is true and quite drastic with some equipment. Other may think other wise and even state it is placebo.

Either position is fine, we all do not see the sky the same color of blue even when standing side by side. Not all of us appreciate chocolate to the same degree, heck some do not like chocolate.

What truly bothers me and it should bother all is that when a person states a different opinion some are ready to hang that person. I truly believe when that happens the individual ready to use the rope is totally out of place and should control himself/herself. Just because someone agrees with your perspective does not mean both of you are correct. On the other hand just because someone disagrees with you does not mean he/she is your enemy.

Just some food for thought.
post #43 of 104
Blind faith is the same as blind skepticism. Only when you let yourself see (or hear, in this case), will you truly know.

I feel like Buddha tonight. Who's gonna rub my belly?
post #44 of 104
Can't we all just get along?
post #45 of 104
Quote:
Originally Posted by Romanee
With the amp I have, in particular, the bass finally stabilized at around 400 hours. I can't say that every amp will follow exactly the same pattern, so my comments are just a reference to my experience.
I agree with Romanee here...my Hornet really hit a new level last week. Bass just seems to go deeper, and tighter. Things now totally seem 'right' at the 400+ hour mark.
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