So far as I recall, in usa web stores, inexpensive mid power fanless models from alesis and behringer. Art makes some similar models but so far as I recall the arts have fans.Richard deHove wrote: Agreed, but it doesn't seem too unreasonable to want a simple quiet amp. There's just so few new fanless amps! Main one looks to be the Behringer A500, but am not overly keen on the brand...
I'm perhaps too paranoid, but both had too many unhappy user reviews to my liking, though maybe they are "on average" real nice cheap amps and squeaky wheels were the only guys posting reviews. Its hard to judge.
I didn't care about new vs used, just wanted good-enough amps less than 10 years old, so I wouldn't have to worry about the capacitors for a few years.
Also I would not personally buy an amp that does not include mechanical output relay speaker protection. Most modern amps have several protection mechanisms, and of course even a mechanical speaker cutout relay can fail, but I'd rather have the relays just in case the solid state protections fail if/when the output or driver transistors fry. Amps can have many failure modes, and it is annoying to repair fried speakers along with repairing/replacing a fried amp.
Anyway, for the homemade studio monitor horns, only needed 40 watts rms per channel because horns are so efficient and don't need much power at home. Haunting ebay, got a great little pro low-mileage ashly single rack 40 w/ch fanless amp for $110. Those thangs sell new closer to $1000.
In addition to ashly, several companies make real nice single rack fanless amps in that power/spec range, typically $700+ retail.
Maybe am wrong, but I got the impression that that class of small amp is frequently used in radio and tv studios, and maybe the big chains of broadcasters replace all the entire studios every few years, selling off the old ones cheap. Maybe there is some other explanation, but noticed that it was common to see one salvage company selling numerous identical "a few years old" near mint amps and such, cheap. Or maybe they pull em out of walmarts or whatever. Just doesn't seem that a walmart would buy quite that nice of an amp for distorted "Attention shoppers" announcements. But mebbe so.
For low level near field monitoring the first watt is the most important one, but with NS10 maybe 40 w/ch might not be "quite enough" headroom. Or maybe it would be quite sufficient. Dunno.
Crown made popular amps in that format, dc75 and dc60 and such. Lots of em fer sail used, some rather cheap. But I didn't want an amp old enough to risk dried out caps. If I want to recap amps, already got some.