Amplifiers weight

My MC2250 weighed 80 lbs. It was a gift, so, Zero per pound. Until, moving it out of a low shelf, I got a torn meniscus in my knee, surgery, .... it turned out to be a darn expensive amp.

As usual on this topic, you see  people speaking up and comparing amps apples to oranges.

Depending on the efficiency of the speakers one uses, if  very efficient, you probably won't need a 200 WPC amp.  Then a light 15 WPC clean amp works well and it won't weigh anywhere near what a class A 200 WPC amp would weigh.

no matter how certain people try to get around the fact that electronic equipment is "engineered" and science and technology is absolutely present, they try to make one believe that technology and science aren't a part of it at all.  mostly because they don't understand it.

Not taking anything away from Class D amps, if you stick with class A or A/AB amps, you are dealing with linear power supplies , large capacitors, heavy enclosures, heavy heat sinks.  most of this is based on the science of power supply design and heat sink design necessary to get rid of unwanted heat from output transistors.

But, if space is an issue and you have efficient speakers, then by-all-means try Class D amps.  they are lighter and getting close to well designed class A or A/AB amps.  not there yet, in my opinion.

But, not everyone wants really heavy, large amps, so they are opting for lighter  amps and more efficient speakers that don't require large output amps.

Well made transformers are not light or inexpensive.  high voltage capacitors are not small.  large output transistors require sufficient heatsinking.

shortcuts will result in lesser sound quality.

But, it depends on you and what you have (speakers, rooms size) and the sound quality of the music you prefer.  Oh, and also, your budget.

enjoy

I have 2” granite sides and bass plate on my amp. My amp weighs 245 lbs. It’s the best amp ever made, bar NONE! The weight of an amp determines its quality. One of the major criteria all should use!

wolfie62
I have 2” granite sides and bass plate on my amp. My amp weighs 245 lbs. It’s the best amp ever made, bar NONE! The weight of an amp determines its quality. One of the major criteria all should use!

>>>>>That statement is patently false and I can prove it. Isolate any amp, even a very heavy one and it will sound better AND weigh less. It’s pure physics. Case closed. Although there is some advantage to dead mass inertia the whole house is shaking due to seismic type energy and everything in the house is shaking with it. You can’t fool Mother Nature. 

My class D was $90/lb and I can carry it with one arm. Previously I had an 88 lb Pass behemoth which I could boil water on for pasta which I do not miss.

Weight obviously exudes feelings of quality. I remember back in the 90’s I opened up my Pioneer elite CD player to find a metal plate affixed in the middle of the chassis with no other purpose I could think of other than to provide weight, either for vibration control or just to add weight.