I see there are a lot of 'what mic should I buy' questions here, so apologies in advance for yet another one... I'm looking to augment our mic collection with a matched pair of high quality transformerless cardioid condensers. They are being chosen mainly as a stereo pair for 'classical' recording (XY, ORTF, NAS, etc.), but will get used for all kinds of other purposes as well. High on our list of priorities is that they are as quiet as possible. At the moment we have Focusrite Octopre pre-amps but are thinking of upgrading to some 'character' and 'flat' pre-amps (such as some Focusrite Reds for the former and Earthworks for the latter). We already have a pair of old Neumann KM84s (that have transformers). So far I've considered the Sennheiser MKH40 and the Earthworks SR30 (we already have a pair of QTC1 omnis, which are fabulous mics). Does anyone have experience of either of these mics for this kind of purpose and would you consider any other models? I'm not really familiar with models from Schoeps, for example. Many thanks.