Amplifier break-in period?

0 Members and 1 Guest are viewing this topic. Read 6762 times.

Grit

  • Full Member
  • Posts: 693
  • - Garrett
Amplifier break-in period?
« on: 16 Jan 2015, 08:13 pm »
Can anyone comment on Bryston amps needing (or not needing) a break-in period when they're new?

I have a new 9B-SST2 that replaced a Krell S1500. To my ears, the sound stage is bigger and the bass sounds tighter, but there's not quite the same separation of instruments or musical nature/quality. I listened to it for about 20-30 mins, right after plugging it in. All the rest of my equipment is Bryston (SP3, BDA-2, BDP-2). 

I remember being just amazed when I heard a 4B-SST2, but I'm not getting that feeling right now. However, that wasn't with the exact equipment. At that time, I had a Rotel receiver instead of the SP3 and a separate amp. Sorry, I know that's very qualitative, but I don't know how else to express it.

Anyway, I'd appreciate any personal experience anyone can share, whether you noticed break-in changes or not.

Thanks,

- Garrett

PS - Also, I wasn't using particularly high quality songs... mostly modern pop/rock stuff (Elton John,  Eagles, Sarah Brightman, and a few others). Another possibility I'm considering is that the 9B-SST2 is just being more "honest" about the potentially lower quality of these recordings.

redbook

  • Full Member
  • Posts: 1237
  • the music is the blood...........
Re: Amplifier break-in period?
« Reply #1 on: 16 Jan 2015, 11:53 pm »
All I can offer is that with my new bp25 and my new 4B ST there were gradual improvements during the initial 100 hours or so. I can testify based on my experience that these devices get better after some miles are put on them. I also had that effect with the bcd1. I assume that applies to the newer ones as well. :thumb:

Grit

  • Full Member
  • Posts: 693
  • - Garrett
Re: Amplifier break-in period?
« Reply #2 on: 17 Jan 2015, 01:22 am »
Thanks for the reply. That's encouraging to hear.

My perspective/opinion right now is that the amp has the potential to shine, but needs to open/loosen up. I'm insecure about it since it's it's a sizable/lifetime investment (for me at least), and it's not immediately better than what I already have.

1ZIP

  • Full Member
  • Posts: 783
Re: Amplifier break-in period?
« Reply #3 on: 17 Jan 2015, 06:36 am »
When i first got my 4B SST2, BP-26, BIT 15, BCD-1 setup it sounded harsh and not very, as you say, musical.  But after a couple hundred hours the harshness went away.  That having been said, even now many hours later, on system start up there is some harshness. But after 2 - 3 hours it disappears. At first I thought it was just me but others have noticed it as well.  Just give it some time.

rollo

  • Restricted
  • Posts: 5530
  • Rollo Audio Consulting -
Re: Amplifier break-in period?
« Reply #4 on: 17 Jan 2015, 01:57 pm »
  Much to soon to tell. At initial start a nt as the end result will . Be patieminimum of an hour is required to come to operating temp. Since it spanking new after about 50 hours a path of least resistance will burn in.
   It will take 400 hours for the transformer and caps to settle. The dielectric is what takes the time to settle. As a beta tester for many products I have broken in quite a number of components.
   My method is first day 24/7 on. Then 5 hours on 5 hours off until it stops changing. If 5 on 5 off is a hassle then 12 on 5 off. It will take some time but worth the effort.


charles

Chicago

Re: Amplifier break-in period?
« Reply #5 on: 17 Jan 2015, 10:13 pm »
Well, you already had the Bryson source and pre-amp with a high quality amp so I am not surprised the difference was not huge.  That said the Bryston amp may be more transparent as you point out in your P.S. - I am not that familiar with the Krell line.  I leave my 4Bsst on 24/7 because it definitely takes awhile to warm up and it will sound a little harsh if I play it when I first start it up.  Like Redbook I have the BP-25 and BCD-1 so I am just a two channel guy with Bryston.

I can tell you that it will only get better with time.

Good Listening,
Mike

Rod_S

  • Full Member
  • Posts: 1104
Re: Amplifier break-in period?
« Reply #6 on: 18 Jan 2015, 12:48 am »
I wouldn't expect much difference in sound between two well designed amps of the same type, i.e. SS vs SS, tube vs tube and I would expect even less difference between say 2 different Bryston amps

Grit

  • Full Member
  • Posts: 693
  • - Garrett
Re: Amplifier break-in period?
« Reply #7 on: 18 Jan 2015, 01:43 pm »
Well, I let the amp run for a good 8 hours playing music on Friday before I listened again. So far, nothing's changed. I know that's not break-in, but that should fix any concerns about the amp not having been on for a while before listening.

To clarify, I'm just listening to 2ch stereo, CD-quality music on bypass (BDP-2 -> BDA-2 -> SP3 -> 9B-SST2, all balanced or AES/BEU cable. Speakers are Aerial Acoustics 7T's). I figure if audio equipment can handle music, it can get movies right. That and I'm less critical of movies. I really have no comparison for the Enterprise exploding (Star Trek), programs de-resolving (Tron), exploding ships and canon fire (Master & Commander), etc.  :wink:

Anyway, the differences are not what I'd call subtle. I noticed them immediately. I was hoping it was me or a particular song. But as I started listening to more material, I heard the same differences. Right now, it's like new shoes... its just not comfortable and listening to it draws my attention away from enjoying the music. I'm hoping it's like leather boots; the kind that start out stiff and uncomfortable but end up being your favorites after they loosen up and conform.

Most equipment I have owned was either demo equipment or previously owned, so I don't have much experience with break in. The few things I did (like the Aerial's) sounded great to me from day one and only got better. So this is new territory, and it has me nervous.

Thanks to everyone who offered their experiences with Bryston equipment break-in. I'd welcome any other experience or input anyone has to share too.

Laundrew

  • Full Member
  • Posts: 7197
  • "Sometimes it rains inside my head..."
Re: Amplifier break-in period?
« Reply #8 on: 18 Jan 2015, 04:10 pm »
Does new gear warm up to you or do you eventually warm up to new gear?

Another interesting observation aside from the break-in period related to audio is that once you have your gear tailored to your "ears," it is really difficult to listen to other systems - for me anyway. This has really been noticeable during my turntable auditioning journey, while these audio systems were awesome, the sound was just not there for me - my JBLs and Beasties are my audio Xanadu.

Be well...






Grit

  • Full Member
  • Posts: 693
  • - Garrett
Re: Amplifier break-in period?
« Reply #9 on: 18 Jan 2015, 06:40 pm »
Laundrew, I wondered the same thing myself. I hate to be a "fanboy" of anything, but I've been a Bryston fan ever since I had a BDA-1. I was SO floored at what it did. And that 4B-SST2 I listened to was almost life-altering. There's no experience like finding out what MORE your system is capable of when you find a piece that was REALLY holding it back. Anyway, I certainly felt like Bryston was for me.

I've got a bit to add, but for those who skim threads, let me state right now that something is all better this morning.

I'm a pretty empirical kinda guy. I like answers and explanations I can see and prove. They make me comfortable, probably from their predictability. I'm also a relatively emotional person, meaning I have no problem expressing my feelings. I can fly off the proverbial handle when I'm past my tolerances. I'll shed a tear for a decent movie that strikes a chord with me. And I'll grab my little boy (he's 15 months old, and my first), abandon any concern for the opinions of others, and giggle and play with him in the frozen food section of the grocery store just because it's fun.

All of that to say that high end audio (I don't know what else to call it) is an immense joy and incredible frustration for me. The best thing I ever heard about high end audio was from the person whom I purchased most of my Bryston equipment.  It was something like this: "I may think it sounds amazing. I may think it sounds awful. Know what REALLY matters? The opinion of the guy writing the check." My point is, it's really unfair or difficult to say something doesn't sound good. It may not sound TO YOU. My wife hates blue vein cheeses. I love them. All anyone can really say with certainty is that they agree or disagree. There is no empirical benchmark everyone can agree on. Rather, we look for people with similar or identical opinions to our own. And since I can't say with empirical certainty that a Bryston amp is great, I've relied on brief past personal experience, personal experience with their other equipment, and opinions of others. Typically, if I own or heard a piece I enjoy (or disliked), I look for like-minded opinions and see what they did like, hoping to point me in a direction I will like. Thus, I really expected this Bryston 9B-SST2 to be to my liking.

I was disappointed when the 9B-SST2 did not match up to an amplifier that cost less and doesn't have the best reputation within its brand. I hoped break in was the culprit. I scoured Google hoping to find others who'd commented on it. Surprisingly, there wasn't much. One owner was amazed at what an overnight, non-stop CD playing did for some 7B-SST2's. Others mentioned the 100+ hour mark. And a few posters stated that, because Bryston runs their amps for 100 hours before ever shipping them that there is next to no break-in required. So much for consistency! The whole thing was disheartening, and about a million miles from anything empirical or predictable.

I value or rate additions to my system when I find out if it increases (or decreases) my emotional response to music. Initially, the 9B did not elicit an emotional response with me. It really hasn't had much more break-in than before. Maybe another 5 hours, max. The only other thing I did was really get to crank up the volume this time. Previously, I  was at conversational levels of loudness. With the house to myself for a bit, I got to let it loose a bit and breathe.

I don't know if time, a few more hours of use, or increasing the volume caused the change. For all I know, my ears changed or the cables had to acclimate to a new amplifier (though I doubt that, but I've read that others believe that can be the case). But this morning, Elton John's piano sounds like a piano again, not like a synthetic reproduction. Violins in Sarah Brightman's "Time to Say Goodbye" make me take a slightly longer breath in. And the Eagles sound much more like they did when I saw them live. Part of me is skeptical; that I'm just hearing what I want to hear. This week, I'll bounce the two amps back and forth and see how they make me feel. But I'm suspecting even then that I won't feel or hear differently. Regardless, I found myself tapping my foot to the music, and for me at least, THAT was what I expected and what I'm looking for.

So, I'm encouraged and cautiously optimistic, especially if there's more room for improvement. I'd love to continue reading about others' experiences, and I'll add any updates on my end.

PS - I also immediately considered that the volume was a facade. I turned the volume back down and listened again. While quieter (and therefor having less dynamic range) the qualities were still there. So it wasn't just a placebo from increased loudness (at least I don't think it was... time will tell).

Mag

Re: Amplifier break-in period?
« Reply #10 on: 18 Jan 2015, 10:19 pm »
What some refer to as musical, is in the frequencies. It really is a fine line and probably subjective to each listener as to where or what these frequencies are that make or break a speaker or stereo system's musicality.

I think it may also refer to the crossover frequencies though I'm not sure on that. :smoke:

Grit

  • Full Member
  • Posts: 693
  • - Garrett
Re: Amplifier break-in period?
« Reply #11 on: 21 Jan 2015, 07:50 pm »
I did an back to back comparison last night between my old amp and the 9B-SST2. I know it's not a double-blind ABX test, but it suited what I wanted to accomplish just fine.

The 9B-SST2 indeed has opened up and instruments sound musical. The most notable difference (with about 20-30 hours of break in) is that the Bryston amp does a better job with imaging and sound stage. Best way I can describe it is that there sounds like there is space between items within the sound stage. Even crowd cheering and whistling in a few live recordings now has some distinct imaging. Instead of a two dimensional sound, even the crowd has some depth to it. Of course, so does the music and singers. I just wasn't expecting it from the crowd too!

I'm excited to see if/how the 9B-SST2 evolves more during the next few weeks. Sometime this year, I hope to had a BIT-15 to the system too and see what that does.

Thanks again to everyone for sharing their experiences. I was a bit worried there for the first day or two!

- Garrett

redbook

  • Full Member
  • Posts: 1237
  • the music is the blood...........
Re: Amplifier break-in period?
« Reply #12 on: 21 Jan 2015, 08:29 pm »
  Glad to hear that. This is what I experienced too with both the power and pre amps.  Happy listening..... :banana piano:

Chicago

Re: Amplifier break-in period?
« Reply #13 on: 22 Jan 2015, 01:55 am »
Garrett,
Happy to hear things are more to your liking after some additional listening and break in.  I have always wondered how much of the "break in" is the equipment and how much is our ears and it is probably some of both.  Hope it only improves for you.

Good Listening,
Mike

Grit

  • Full Member
  • Posts: 693
  • - Garrett
Re: Amplifier break-in period?
« Reply #14 on: 22 Jan 2015, 06:44 am »
I'm sure part of it is our ears and part is break-in.

In my case, the break-in as been letting the amp run during the day as background music. I only ever sat down and listened to it three or four times, each of which I posted here about. Those were for about 20-30 minutes each.

Whether it's my ears, the amp, or both, I'm pleased now. :)

PS - I had an Emotiva amp for almost two months while my Krell was away getting serviced. My ears didn't adapt enough to make me happy with it. Even my wife immediately noticed a (positive) difference when I replaced it :wink: Which reminds me... They're will be a Krell S-1500 listed on Audiogon this weekend.  :D