When I turn the Balance control to the right (clockwise) the sound moves to the left speaker, if I turn it to the left (anti-clockwise) the sound moves to the right speaker…
I haven’t had a balance control since the 80s on mainstream systems, but I’m sure back then, if you turn to the right, the balance (sound) moves to the right speaker…
I’ve traced my speaker cables and they are connected correctly, are my interconnects reversed, or is this correct behaviour on Naim?
Yes speaker cables crossed around the wrong way at back of amp.
If your looking at the amp from the front, the left speaker should connect to the right side amp connection and vice versa for the right speaker.
Basically the opposite to what you would think.
IIRC, it’s something to do with how kit is racked in recording studios and Naim, who supplied Capital Radio at one point, have always done it this way - check the Manual for the Amp (not the Pre-amp).
Yep, it’s from Naim’s early roots in studios. Just for completeness the Uniti models do it the other way.
I was quite confused when people mentioned this when I joined the forum a few years ago , I’ve been using 135 monoblocs since 1989 and I’d completely forgotten how my 140 used to be wired up.
CH1 = LEFT. CH2 = RIGHT. It makes sense when you look at the back of the power amp head on (and with pro amps this usually how they are placed - socket side forwards). However, if you keep the amp/system positioned between the speakers then the speaker cables would need to cross - a good reminder that placing the system between the speakers is usually less than ideal sonically.
While you’re at it, maybe check that the speakers are not wired out of phase! If you didn’t read the L and R labels, chances are you ignored the + and - too.