Well, I never made it to full blown active with Naim. But here’s my over-heating experience with Naim’s legendary 250.2.
Remember, there’s a lot crammed into a single black box, unlike the 300.
I been running a pair of late model Briks for nearly four decades. Not the Domestic Monitor Speaker (DMS), nor the Professional Monitor Speaker (PMS). The former were ran passively, and the latter was designed to be ran actively.
My Isobariks have been ran with a single LK 280, and Bi-amped with an addition of an Spark. Finally I went full blown Active:
LP 12/Gengki > Karin > Linn crossover with bingo card, Dirack PS powered by 3 LK 280s. {{In all those years, no humming amps, and no over heating!}}
With that being said, I still prefer Naim Amps. If I had to describe my experience with Naim’s regulated 250.2 the two adjectives would be thick and rich accompanied with the clarity and accuracy of the Nac 282.
Just lovely, to say the least!
Over-heating:
Bi-amped Briks with 200 on the tweeters and 250 on the mid range and woofers. Entertaining @ 10 o’clock for more than 40 minutes, the 250 would shut down. Invested in two small battery fans.
Decided two switch the duties of the amps, and put the regulated 250 solely on the tweeters, and let the non-regulated 200 handled the mid range and the woofers.
No shut downs!!!
Mr. Richard Dane explained the 250 being an regulated amp it wouldn’t slip on the job and shut down.
To be honest, I couldn’t tell the difference when I switched the amps duties.
In any event, I decided to tri-amp the Briks with the addition of another 250.2. No fans, or shut downs but I rarely pushed them beyond 10.5 o’clock for more than 15 minutes.
When my neighbors walk by house they thought it was a live band!
Enjoy your music.
The Why!
Allante93.7