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In the Forum: Melquiades Amplifier
In the Thread: The one-stage Melquiades.
Post Subject: sowter mumetal impressionsPosted by op.9 on: 5/1/2007
Like cv, I've not directly compared mumetal to amorphous in an OPT position. However, my hunch is that the sonic attributes are the same as those found at line level (I've tried various Xformers as the IV/output stage in my Rakk Dac).

I now run my 'tweeter' amp 1st order high pass at 2200hz (driving BMS 4540nd in 1500hz leCleach horn) so my impressions might have some bearing on Romy's new amps. I was playing around with operating points and components in my single 5842 amp when the sowter mumetals arrived. Immediately all my energy went into listening to music again. First impression were of real power and grip! A sort of palpable sound - always my holy grail (maybe this is analogous to romy's 'connectivity'?) My BMS4540nd drivers had never sounded like this before - it has taken a few months to realise quite how good they are. Only later did I notice a huge increase in delicacy and detail. Its not a 'flashy' sound at all, in fact now I'm happy to take my tweeter amp for granted, and forget about it.

Interestingly, I was using a single 5842 for a long while until I realised that I didn't have enough system gain. Now I'm using a 5842 RC driving an EL84 triode-connected and I have to say that 98% of all the good things about the 5842 are in control of the amp. The 2% EL84 adds a nice 'sexy shimmer'  to the sound. I'm not at all surprised that the Milq's driver stage sounds so close to the original and I'm very interested to see if a fully optimised single-stage could outdo the full Milq. . .

best
op.9

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