What is missing here?


In this months Absolute Sound magazine there is a nice review of an amp that many of us would probably consider based not only on the review but on the topology utilized with the amp. The amp in question is the new Air Tight ATM 300R. This amp utilizes the 300B tube and according to Dick Olsher " The Air tight ATM300-R wowed me with countless hours of listening pleasure. It consistently brought to life the full sonic promise of the 300B". Sounds amazing right??


Except, nowhere ( except in the specs section) does it mention that this amp is limited to 9Watts/Ch!! And at that it is putting out about 10% distortion! So not only is the amp severely limited to which speakers one can match it to, but those speakers had better be ULTRA high efficiency. While most experienced a’philes will expect the extremely severe limitations of this kind of max output, how many casual listeners who read this article will realize the extreme limitations that this amp comes with? Certainly none of that is mentioned in the review, which brings up the question...why not??? How many even somewhat seasoned a’philes have made the mistake of matching a flea powered amp with a less than favorable speaker load? Let’s hear about it....
128x128daveyf

Showing 2 responses by mijostyn

Daveyf, I think you are absolutely right. In medical speak it is a drug looking for an indication. As a lover of all genres of music an amp like that is worthless. If you had horns and only listened to string quartets ....... maybe. Nine Inch Nails on ESLs with 4 subwoofers? Forget it buddy. You might as well fry your toenails. There is never such a thing as too much headroom. In my experience very powerful amps (200 watts and up) have an effortless character that few smaller amps can match and this is speaker independent. I look at these little tube amps in curiosity only. 

daveyf, I said that "few low power amps could match." I did not say that no low power amp could match. There are some excellent low powered amps given the right speaker. My very first amp was a Dynakit ST 70. But for the last 40 years I have had relatively inefficient Ribbon or ES loudspeakers and frankly, low powered amps need not apply if you want the dynamic range of these speakers expressed in full. 
Diving Klipsch Cornwalls the Dynakit ST 70 would sound supreme. Like ESLs no but, very enjoyable just the same.