The Shure V15 V with a Jico SAS/B stylus VS The Soundsmith Hyperion MR and Lyra Atlas SL

Mijostyn, Since this is your thread, I hope it’s OK to go off-topic to ask why and wherefore you burnt out audio transformers on your Sound Labs, unless you are referring to the experiment "we" did with Plitron toroidals to replace the OEM treble transformers (which are also toroids). I am still ecstatic, not to say electro-ecstatic, every time I listen to my Sound Labs sans the internal passive crossover and using the full range Australian-made EI transformer in parallel with the OEM Sound Lab bass transformer. Just divine.

Was it some mischief with your equalizer, again, that blew an audio transformer?

If you're looking for very low capacitance cables, then I suggest considering Anti-Cables.  They have devised an ingenious method for minimizing capacitance by winding the ground wire in a spiral around the signal carrying wires.  Thus the ground current is roughly at right angles to the signal current, and C is very low.  In my Beveridge system, I need a very long run of IC between the preamplifier and the Beveridge direct-drive amplifiers, which are built in to the base of each speaker. There and elsewhere in both systems, I use the higher end Anti-Cables. Reasonable pricing, too.

@lewm Long story. My new processor has a 4 way crossover. I decided to try bi amping the transformers. Roger suggested a crossover point at 500 Hz. I used the MA2s to drive the bass transformers and a Bricasti M25 to drive the treble transformers with a 150 watt 1 ohm resistor on each primary leg. The only parts of the original back plate left were the bias supply and the output junction box. It sounded fabulous at lower levels. At higher levels the M 25's protection would shut it off and worse the MA2s were clipping prematurely. The clipping burned out first one then the other bass transformer at $450 a pop. When the second one blew, knowing that the stock treble toroids do poorly below 300 Hz, I mounted up those Vanderveen 1:75 Toriods I bought a long time ago and ran them full range or rather down to 100 Hz where I crossed to my subwoofers and they sounded glorious! The only remaining problem was not enough gain. The stock toroid uses a ratio of 1:92. Nobody currently makes a 1:100 ESL step up transformer. I ordered four 1:50 Vanderveen toroids and strapped two for each channel. The primaries are wired in parallel with a series 1 ohm resistor on each leg and the secondaries in series with the junction as the center tap. Meeno had the factory (Trafco) make them for me without the usual center taps. The High end rolls off a little earlier, 14 kHz instead of 15 kHz, but I can not hear the difference. And the sound is pristine. Would it sound any better than what you are doing? I think so, but can't be sure and 4 of these transformers is $850. 

You don’t need the one ohm resistor with the MA2. Its intrinsic output impedance is protective. Anyway you’ve corroborated my thesis that the passive crossover between bass and treble transformers in the stock configuration is an evil if using a tube amp especially. I’m glad you’re happy although sorry about the blown transformers.

@lewm The 1 ohm resistors are for the Bricasti M 28 mono blocks I am trying out. Their output impedance is something like 0.02 ohms. The MA2s will not oscillate but they do not care for load impedances below 2 ohms either. They actually play loader with the 1 ohm resistors in place! Right now I am going back and forth between the amps deciding which ones I am going to keep. It was a circuitous path, but with a very happy if expensive ending.