Get that AlexIf the thing I linked to above is not an option then yes.
So, I have decided to buy the Can Opener, thanks Derek. Who knows whether this’ll blow up the Amptastic with its earth arrangement….?
I really don’t want to blow up my Amptastic so I’ll await further advice and in the meantime try a Temple Bantam Gold, very close in character and easier for me to sacrifice if it comes to it.
I presume you’re just using the SMPS with your Amptastic?
John Clayton/Temple got back to me and his amps no worky with a can opener and will likely go into protection mode. Amptastic I very much doubt also. No reflection on Derek whatsoever, happy to buy the thing at price paid but it’ll sit in a cupboard until I have a suitable amp.
I guess this is a heads up that if you’re thinking of the can opener as a solution you don’t want to be having a class T, D or valves probably.
Does anyone remember the Rega Ear? (At least, I think it was called the Ear, before they started using the name for their headphone amps?)
Couple of pairs of leads to connect to the speaker outputs, with a heatsink-esque styled box at the end containing the headphone socket - presumably, something similar inside to The Can Opener?
I've used it with various Verker era Naim amps (140, 250, 135s), albeit very occasionally - nothing blew up, so OK with these era Naim amps for more regular use?
(This thread is making me paranoid, not to mention the short cable runs on the Ear... )
I've used tripath amps with Hifiman headphones to good effect.
The easiest way to drive the HD650s is to buy one of those reasonably priced litz cables off eBay to the length you want remember they go round the back of the amp so add 0.5m on to be sure. Make sure from the photos they don't meet and merge at the yoke but remain separate (but wound together) to the jack plug.
They should have 4 (or 8) wires direct to the headphone jack. Cut the cable at the jack so you have 4 (or 8) bare cables. With a multimeter work out which ones go to the L/R +/- pins on the headphone plugs and attach banana plugs in a way you will remember which is which.
Next recheck every banana plug against every terminal to make sure the only connection is to the intended pin.
Plug the banana plugs in and you're ready to go.
Thanks for the book rec.