These are the two concerns I have about these amplifiers. Their stability and how to handle the heat. So I hope to turn our discussion in that direction. Does anyone have any suggestion for actual appliances I can use to handle that heat? Brian has given me a suggested theoretical solution below. What kind of products would do what he describes. A requirement is that it has to be dead quiet.
you have a 'classic' HVAC challenge, just like I had with my room. only instead of the TRL 800 Mono's I wanted to be able to have 25-30 listeners in my room occasionally, which I've done 6-7 times, and still keep it comfortable and very quiet. 25-30 people, in a 'closed in tightly' 29' x 21' x 11' room, over 2-3 hours, would get unbearably hot when added to my system heat.
my HVAC design starts with a electronic heat pump with the heat exchanger sitting outside on a concrete pad on the opposite side of my barn from my room with 3 walls and 40 feet between it and my room. then my air box/furnace is upstairs in my attic above my hallway outside my room, mounted on a rubber pad for decoupling. then the air output exits from the air box and makes -3- 90 degree turns before splitting into 2 and outputting in the rear 1/3rd of the ceiling of my room. the ducting is in the false ceiling on my room. then the air returns (I have 2 for maximum capacity to move air) are in the front bottom corners of my room. and it also has -3- 90 degree turns before it returns to the air box. the -3- 90 degree turns are to insure that zero noise gets transferred from the air box fan.
the air is then moved noiselessly and quickly from the rear ceiling through the front bottom corners quickly and efficiently. if you took this same approach the heat from the TRL 800's would always be pulled away from the listener.
the only noise is a very slight 'click' from the sensor unit on the rear wall when the unit switches on, only audible during very quiet passages......which happens almost never unless there are 25-30 people in the room.
I can actually 'tune' the system with a couple of additional air vents in my rec/pool/TV room upstairs for optimal air pressure and lowest noise. excessive air 'rush' can happen if this is not done. the idea is to maintain negative air pressure to keep the air moving out of the room thru the returns while staying at the right level for lowest noise. the returns must be large enough to do this.
and I can keep it at 68 degrees, with full capacity and a 90 degree day. been there, done that.
as I recall, the total install cost of this system was $10k-$13k......very cost effective in the context of your system, like a set of speaker cables or a phono cartridge. likely more costly in a retrofit, my install was new construction inside a shell of the original barn. another issue could be whether you have the amperage capacity in your power grid, or you could possibly use a natural gas air exchanger. my HVAC unit is on the dirty power grid in my room/barn.
Secondly I hope to hear from other TRL owners and their long term relationships with their amplifiers. What are their experience in terms of stability. What have they learned to do as control routines. How often do the change bias (a lot of tubes for me). How do they otherwise care for their amplifiers. This is my first tube amplifier. The minimum of equipment I should own is a soldering iron and a multimeter. Anything else?
talk to Gallant Diva if you have not already.
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