For the curious, this is a rare Naim product developed with collaboration between Naim and the BBC. It’s one of three delivered to the BBC. It’s based on a NAP 250-2 amp, and for studio purposes it has a balanced XLR input for each channel, and “Speak-On” output connectors instead of Banana sockets. Having recently restored one, here are some pics I took:
Amp boards removed and chassis cleaned
Two pairs of power supply reservoir caps removed
Amp Board ready for rebuild
Rebuilt Amp boards & balanced circuitry
Reassembly of Chassis
Rear panel (with new XLR and Speak-On sockets)
Definitely a unique project!
Chris - AV Options
Thanks a lot Chris, that’s fascinating.
I would like to have it . My preamp is balanced and have xlr outputs. Sad that Naim doesn’t produce it anymore.
I spy with my little eye output inductors! Presumably the BBC wanted to be able use any standard speaker cable without restriction.
except it seems it be a US voltage version.
Yes it’s 120V … the owner moved to the US and had it converted
The amp had to be stable no matter what kind of speaker cabling was attached to it.
Thanks for the pics Chris!
Thanks Chris that was really interesting. I would be interested in in other pics of some of the older amps, players etc if you have the time.
Which power cable is that ?
Hope this isn’t a daft question since I know nothing about studios, but what would its role have been exactly?
Thanks for the pictures.
Out of interest …how does it sound?
Most likely for driving monitors in a control room or editing suite. LS3/5 possibly?
I wonder as to how it sounds compared to a “regular” 250…
I once asked this of Roy. IIRC he answered that it sounded really good. Just not quite as good as the regular NAP250…
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