Yea it's the 5si mate.Also, terminated Naim NAC speaker cable is preposterously expensive. Truly obscene.
This is essentially the same stuff. So, buying this and snipping of the plugs to show new copper and soldering one end to the naim plugs will be your best bet, if it’s an older Nait.
For sale here is a pair of Cable Talk 4,1 Speaker Cables each of which is 2.5m in length. I can see no evidence of any spike marks or other issues which could possibly detract from their excellent performance.www.ebay.co.uk
If it’s the Nait 5 I mentioned earlier in the thread, then any speaker cable at around 2.5mm cross section will do the job. Including the cable talk too of course.
Tbh the early signs are that I'm not mad keen. The sound seems very light, and too bright, but when I turn it up to try and hear more of a song it sounds harsh (this is about 10/11 o clock on the dial, for most songs. Anything less than 9 o clock is way too quiet for most songs).
I suppose the next step is to get get some new speaker cable and try that. I'm extremely reluctant to get the soldering iron out however as at this stage, mainly because I might sell the amp on yet.
I'll give it more listening but I'm not sold on the Nait 5 at this stage, or possibly that the amp isn't the issue, or at least isn't the only issue. So it could be back to the drawing board basically but I'll give it more of a listen (and compare to the nad).