@tooblue - it doesn’t get Texas hot here, so sounds very hopeful.
How hot is hot when moving from class a/b to to a or tubes?
I am considering moving from a class a/b Luxman L509x to a class a or tube amp.
I have never owned a class a or tube amp, so have no experience of living with one. My kids are hopefully old enough and wise enough not to burn themselves, but I do live in an already warm house with bifold doors leading to a south facing garden. There is no escaping the sun, despite having uv treated glass.
My room is roughly 9 meters by 12 open planed living space. Equipment is, Luxman L-509x integrated, Zu union 6 supreme, 99db sensitivity (this is why I am considering a lower powered tube I can barely turn the Luxman up) music is played roughly 6 hours a day, more on weekends
who here has moved from class a/b and d to class a with or without tubes. What were the differences of things like:
warming up time
additional heat to the home
Running in summer time
additional cost to run
any considerations I should make before purchasing something. I will try in my home, but will need to free up funds
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@blisshifi thanks for that. Yeah I don’t feel I am getting what I can from these Zu’s. I will take a look at some of those. It’s close to 9ft away from the amp, so good shout there. |
With your speaker’s efficiency you should take a hard look at Valvet Class A amps. They fly under the radar but get universally outstanding reviews and rarely come up for sale but there’s one available now. I’d highly encourage you to check them out. I’d also mention the Plinius SA103 that is also Class A but includes a very useful low-bias switch that lets the amp run in a much cooler Class A/B mode for less critical listening or if you want to leave the amp on 24/7 so it’s always warmed up and ready to go when you want to do more critical listening in Class A. Hope this helps, and best of luck. |
My CODA #16 amp with the first 100 watts in Class A and 150 total is just warm not hot. A great sounding amp and the anchor of my future Livingroom system. My KRELL Duo XD lineup amps, which I sadly sold, were all Class A and ran cooler than the Coda. For, example the Duo 175XD is 175 watts of Class A. It is Class A done like Westminster Labs, using a biasing approach. I was planning on buying the ultimate KRELL amp, the KSA i400, which is 400 watts Class A and runs just warm (another KRELL XD amp). I still may buy it, but I changed course and decided to buy an expensive DAC and use a second-hand CODA #16. My RAAL VM-1a is a tube-based headphone amp and it runs as hot as a furnace. It sounds incredible and the best amp for the SR1a and CA1a phones. Though my favorite amps are my Benchmark AHB2 monos and they are Class AB + H and are the coolest running of all my amps. I just wish they were as powerful as the CODA #16 or KRELL. I am listening to RUSH Moving Pictures using the AHB2’s as I type this and damn what a sound. If you are going Class, A, check out the KRELL XD lineup before spending money on the traditional Class A amps. BTW - I just read your speakers sensitivity rating. With that speaker do a 30-day home trial of the Benchmark AHB2 amps. It will be great with your gear and cost ONLY around $3K. My CODA #16 is $16K (new) and it is sitting idle in my office while I listen to the AHB2. I always go back to the AHB2.
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