| Hi
I believe they will all use Lundahls but one of the mic transformers was 'phased out' at some time as Lundahl had a need to change the design (could not get the correct steel or something if I remember correctly).
Yes all should have a proper line driver to increase current capability and level to drive with sufficient headroom. The maximum you can get unbalanced from 16 Volt rails is +21dBu which is not sufficient for good headroom certainly compromising the capability of the modules. Balancing it gives 6dB headroom boost for starters.
Matt S |