Bill, I did find the Nat Magma v Mayer 46 comparison on the Pnoes instructive.
170W v 0.46W, on 117dB efficient horns.
The Mayers pretty much better in all respects, and re headroom, a lot less in it than those Wattage ratings would suggest.
170W v 0.46W, on 117dB efficient horns.
The Mayers pretty much better in all respects, and re headroom, a lot less in it than those Wattage ratings would suggest.