Bless you for the warning, son. May the gods of euphonics make all your audio equipment perform flawlessly.... and mine just arrived at my doorstep
Note: in the haste to unpack don’t throw the plastic film the Semper case comes in straight down the bin, as the 4.4mm cable is also inside, on the loose (as was stated earlier the case has no room to accomodate 3 cables).
IMR Audio : Sonic Adventures & Impressions
- Thread starter NellieG
- Start date
Xinlisupreme
Headphoneus Supremus
... and mine just arrived at my doorstep
Note: in the haste to unpack don’t throw the plastic film the Semper case comes in straight down the bin, as the 4.4mm cable is also inside, on the loose (as was stated earlier the case has no room to accomodate 3 cables).
Would you share unboxing?
Lokiiami
100+ Head-Fier
Yes. Painful lesson. As usual Bob is amazing, he is kind enough to ship me a replacement filter.
Lokiiami
100+ Head-Fier
Any recommendations for upper filter with the lowest treble for Semper? Currently I'm using lower purple and upper black. The treble seems to be abit too hot on the Sss and Zzz.. tried the red and green but doesn't seems to be able to get rid of them. Could this be the characteristics of the piezo drivers?
With the Opus Mia burn in took care of that completely with most songs in my library , l'm sure it's the same with the Semper. I would give it at least 150 hours.
NellieG
1000+ Head-Fier
Try Bobs recommendation of pink pink and if it is still too much the lowest treble is gold. It is the piezo but it will get better.
Sabre2
100+ Head-Fier
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Is it sorting center? If yes then maybe same batch
violator73
Member of the Trade: Aur Audio
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Yes it is
Lokiiami
100+ Head-Fier
I was thinking maybe the piezo could be abit redundant. The PB2 would be better DD, est and planar.
NellieG
1000+ Head-Fier
On the early versions many used to wish for no piezo as the upper mids lower treble are had a high response but as each new model came out it became more tamed, and honestly i dont mind it and really benefit from having it and is the main reason i chose semper over PB2, plus the large DD. The long burn in times is pretty much for the piezo and is a huge cause of the 70 hour my new IEM is broken. There isn't really a right or wrong of having it or not really, just preference for the end goal.
NellieG
1000+ Head-Fier
The eagle has landed and it is also a fat hen.
But very nice blue colour.
But lateral size is very similar (if not the same), therefore fit is still comfortable.
They are still cold from transport, so I give them time to warm up before I start "burn in".
Physical size aside, it has been bugging me why i thought they looked different, and there it is.
Got my Opus Mia a few days ago from a friend, with just a few hours of playtime. They sound great already and I know from previous models they really need time to reach full potential.
What is everybody using for burn in? I'm using a collection of WAVs with various tones, sweeps, brown, pink & white noise played on repeat through a Chord Mojo at a few volume steps above my regular listening level. Am I doing this right?
What is everybody using for burn in? I'm using a collection of WAVs with various tones, sweeps, brown, pink & white noise played on repeat through a Chord Mojo at a few volume steps above my regular listening level. Am I doing this right?
Lokiiami
100+ Head-Fier
I'm using the 1more Assistant app to burn in. It's in batches of 12hrs. Seems quite useful .
ChrisPBacon
Head-Fier
Interesting (to me) thought... I am going to guess that burn-in, depending upon the IMR model, will be different depending upon the driver combination as an epiphenomenon of the physics of the different materials that comprise each component and the degree of overlap between them as far as the range they transmit. So, hear me out...
The EST would (conceivably) be the least problematic in that it is likely tuned in such a way as to cover the high end unperturbed. Thus, as temperature and heat generated during use tweak the signature slightly, there won't be much opportunity for it to be out of sync with the other drivers, whatever they may be.
The Planar would be second behind the EST as far as being dependent upon purely mechanical stressors that would affect signal. The larger planar in the later models would also likely carry more load in terms of range spread, and be more likely to overlap, thus increasing the likelihood of harmonic discord/mud.
The Piezo and Dynamic are probably the main offenders. They are the most 'mechanical' in terms of how they produce a signal and would probably change the most in response to temp and heat over time. Perhaps ~150 hours as @holsen has detailed in several posts. They are also most likely to overlap other drivers in low, mid, and highs. Basically, as they shift and other drivers do not, the sound as a whole would hypothetically become muddier in overlap ranges, especially low mids and upper mids. Here, they would undercut the planar magnetics for a time.
As Bob is clearly a master tuner, I would guess that he would aim at a couple hundred hours as a place to sync the assorted drivers--whatever they may be. That would be logical, given that all drivers are likely to settle into their long term formations by then. What that would also do, however, is to cause a period--or several--wherein drivers would be out of sync with one another. These might be the "70 hours" or "50 hours" wherein maximum distortion is present, and people send 'em back...
I dunno. What do you want? I'm a scientist, LOL.
The EST would (conceivably) be the least problematic in that it is likely tuned in such a way as to cover the high end unperturbed. Thus, as temperature and heat generated during use tweak the signature slightly, there won't be much opportunity for it to be out of sync with the other drivers, whatever they may be.
The Planar would be second behind the EST as far as being dependent upon purely mechanical stressors that would affect signal. The larger planar in the later models would also likely carry more load in terms of range spread, and be more likely to overlap, thus increasing the likelihood of harmonic discord/mud.
The Piezo and Dynamic are probably the main offenders. They are the most 'mechanical' in terms of how they produce a signal and would probably change the most in response to temp and heat over time. Perhaps ~150 hours as @holsen has detailed in several posts. They are also most likely to overlap other drivers in low, mid, and highs. Basically, as they shift and other drivers do not, the sound as a whole would hypothetically become muddier in overlap ranges, especially low mids and upper mids. Here, they would undercut the planar magnetics for a time.
As Bob is clearly a master tuner, I would guess that he would aim at a couple hundred hours as a place to sync the assorted drivers--whatever they may be. That would be logical, given that all drivers are likely to settle into their long term formations by then. What that would also do, however, is to cause a period--or several--wherein drivers would be out of sync with one another. These might be the "70 hours" or "50 hours" wherein maximum distortion is present, and people send 'em back...
I dunno. What do you want? I'm a scientist, LOL.
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