Amps that don’t impersonate space heaters.

I started using class D am[lifiers in my space-constrained home office a few years ago.Earlier this year I picked up cherry, 4 yr-old pair of Bel Canto 600M monoblocks. I can't say enough good things about these amps.They have a smooth, refined, powerful sound. They're a real taste of the high end. And of course they put out very little heat.

I do the AGD Audions for the summer and switch to Primaluna mono blocks for the winter. I look at it as a space heater that sounds great! 

Go check out Derek Sanderson’s Fleawatt amps, you’ll be very surprised.  When I A/B’d it against a 6B4G SET amp, I had trouble justifying tubes, it just made no sense in running tubes when I listened to it….

You can go class D or you can just reduce the amount of power.  Think of it this way.  Class A is 25% efficient.  So you pass is delivering 30w x2 so that means 90w x 2 is just burning off as hear.  

You need 1 very good watt to drive those speakers.  Even Class A, 1-5 watts may remain extremely inefficient but if you you were to take say a 5w PX25 amp, it will burn off 15w x 2 instead of 90w.  

Flea watt tube amps are the way to go.  I offer Art Audio which are lovely amps and are magical with Avantgarde, particularly the PX25 but it is a lot more than your current amp.  Any good manufacturer that produces a 45, 2A3 or PX25 will give you what you want I think

You need 1 very good watt to drive those speakers. Even Class A, 1-5 watts may remain extremely inefficient but if you you were to take say a 5w PX25 amp, it will burn off 15w x 2 instead of 90w.

Flea watt tube amps are the way to go.

A good class D amp can sound even better and despite being able to make considerably more power, actually draw less power at idle and at any power level the amps mentioned in this post can make. At the same time it can be stone cold to the touch even after running all day. Plus there’s a good chance a class D set of amps would take up less room and would certainly weigh less. Literally no downside.