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Audio-gd Master-5/6/8/9 balanced head amp/ preamp - Page 47

post #691 of 876

I was wondering if those with experience with Audio-gd amplifiers could tell me if they sound better warmed up- and if so how much time do they need to be warmed up to sound their best?

 

Also- I want to put mine in a cabinet.  If I am warming it up for many hours- can I close the cabinet door- or could it overheat?


Edited by rsbrsvp - 12/12/13 at 7:13am
post #692 of 876
  •  

rsbrsvp,

Can't comment on the warm up time yet :)

 

But kingwa seemed to see no issue with me rack mounting mine into a full rack...

I do have ventilation in the rack but yeah..

post #693 of 876
I can add that the amps need to be warm. To sound well. But keep in mind they are class a
And as such gendrate a lot of heat weather being used or not
post #694 of 876
Quote:
Originally Posted by ALRAINBOW View Post

I can add that the amps need to be warm. To sound well. But keep in mind they are class a
And as such gendrate a lot of heat weather being used or not

How long is warm?  One hour- or ten hours- or somewhere in between?

post #695 of 876
I say warm as I. It feels warm so depending on your room temp it wi vary.
But if a time must be pinned down 30 mins.

Go to Psaudio forums. Read the discussion on stanby. All ps audio equipment is ways on

And in fact most of your equipment in your home is on. TV microwave
Cable box. All on. I have a demon 5805ci. It's a ten channel surround sound receiver.

It has two buttons on the front. One is on off. The other is standby. It is a fact that all extrinsic a work better
When they are at there normal running temp. However tubes have a short life spam so just warmup when used.
But CLASS a devices use the same power playing or not. And for this reason. Warmup is better than always on

Hope this helps
post #696 of 876

Kingwa said to me in an email quite a while ago that warm-up time (to max SQ or the like) is 30 minutes.

Make sure the equipment has good ventilation since they run in class A.

Frankly I haven't checked the difference between cold and after 30 minutes ... so can't comment on any sound difference.

post #697 of 876
Quote:
Originally Posted by ALRAINBOW View Post

I say warm as I. It feels warm so depending on your room temp it wi vary.

But if a time must be pinned down 30 mins.



Go to Psaudio forums. Read the discussion on stanby. All ps audio equipment is ways on



And in fact most of your equipment in your home is on. TV microwave

Cable box. All on. I have a demon 5805ci. It's a ten channel surround sound receiver.



It has two buttons on the front. One is on off. The other is standby. It is a fact that all extrinsic a work better

When they are at there normal running temp. However tubes have a short life spam so just warmup when used.

But CLASS a devices use the same power playing or not. And for this reason. Warmup is better than always on



Hope this helps

 



^ This

In my case it takes from 30 min to one hour and a half, if you touch it and it's hot, say 45-50 C+ it should play at it's best, soundstage gets bigger, more dynamic and more body. More than room temperature depends mostly in it's ventilation, my master 8 warms the room quite a bit. with master 9 that uses 55 instead of 48W, it could be more notorious(?)
post #698 of 876
Quote:
Originally Posted by mowglycdb View Post
 
Quote:
Originally Posted by ALRAINBOW View Post

I say warm as I. It feels warm so depending on your room temp it wi vary.

But if a time must be pinned down 30 mins.



Go to Psaudio forums. Read the discussion on stanby. All ps audio equipment is ways on



And in fact most of your equipment in your home is on. TV microwave

Cable box. All on. I have a demon 5805ci. It's a ten channel surround sound receiver.



It has two buttons on the front. One is on off. The other is standby. It is a fact that all extrinsic a work better

When they are at there normal running temp. However tubes have a short life spam so just warmup when used.

But CLASS a devices use the same power playing or not. And for this reason. Warmup is better than always on



Hope this helps

 



^ This

In my case it takes from 30 min to one hour and a half, if you touch it and it's hot, say 45-50 C+ it should play at it's best, soundstage gets bigger, more dynamic and more body. More than room temperature depends mostly in it's ventilation, my master 8 warms the room quite a bit. with master 9 that uses 55 instead of 48W, it could be more notorious(?)

48W (or 55 for that matters) is nothing and certainly won't warm the room, unless it's a tiny one :D.

It's lower than a regular bulb (60 - 100W).

 

How warm is it at your place? 50C is a lot and you would feel burned if you touch it (metal case).

post #699 of 876

It's about 30 C up to 33C in santiago, chile. The sun hits my room in the afternoon, so it gets even hotter + PC on DAC and Master8. I'd say it gets up to 36-38 C if not more.

post #700 of 876
Quote:
Originally Posted by mowglycdb View Post
 

It's about 30 C up to 33C in santiago, chile. The sun hits my room in the afternoon, so it gets even hotter + PC on DAC and Master8. I'd say it gets up to 36-38 C if not more.

 

Wow in that case...

 

My NFB-27 got pretty hot in summer, too, but certainly nowhere near as hot as in Chile.

post #701 of 876

as for warm up time , its not about time its really about temperature . anything about 100 f is fine as for higher temps he should have a max operating temp on his site.

 

a good rule of thumb to follow is staking is only ok if it is not an amp.  and the m8 or m9 is an amp.  when I first setup the M7\M8 I stacked them with about 2 inches of space .

 

well after 3 hours they were really hot. like I smelled the electronics . now I shut it down all is well, but now there is 4 inches and two fans on top of the lower unit  . get my drift, and this in nyc , fall and central ac.  unless you make provisions its not cool to stack and in a rack if open might be ok, but should be monitored and if closed no way.

 

closed cabinets never a good idea for heat generating devices. just take your cable box and put a dvd player on top , it will become really hot. it is like turning up the heat as one device adds the heat to the other. 

 

al d

post #702 of 876

Putting a class A 30 minutes idle is bad for mother earth :P And probably your wallet. I know a friend who rush to home from work everyday, and first thing he does is to turn on his AMP, before he fetches his kids from school...

 

 

I guess next time when I turn my setup on Reference 10.32 on next time, do some Internet browsing for 30 minutes before I start to listen to Music.

post #703 of 876
No that is not the point of this thread. I listen to all my stuff as soon as I turn it on . But the question was asked will it sound better when warmed up compared to cold . That was answered here . I own a ref 10.32. It was my first audio gd device. But as much as I do not want to say it matters it does . Now I own several ps audio power plants . And they are internet controlled power conditioners . So when heading to office or home . I turn on the equipment from my iPhone.

Al d
post #704 of 876
Quote:
Originally Posted by OneSec View Post
 

Putting a class A 30 minutes idle is bad for mother earth :P And probably your wallet. I know a friend who rush to home from work everyday, and first thing he does is to turn on his AMP, before he fetches his kids from school...

 

The man knows his priorities. ROFL

post #705 of 876

Here is a correspondence with Audio-gd:

 

Dear Steven,
No problems, even you cover the Master 9 top side, power on it 5 hours still no any matter, its heat sink ability have a lot spare room.
Kingwa

At 2013-12-13 14:38:23,"Steven Rubin"  wrote:
Yes.  The cabinet is 3x the size of the master 9.  Can I leave Master 9 in the cabinet running with the door closed for 3-4 hours or is the heat to much?
 
Thanks,
 
Steven
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