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Hardly could consider a Dynaco end-game in terms of sound quality, its a PCB Push-Pull Pentode amp, perhaps end-game in terms of options, but it have a quite different sound from a Transistor Class AB amp.In the mid 1990s a late friend (RIP) Opera/Classical music fan bought one Dynaco 70 EL34 to drive his JBL L90 4ohms 90dB and his original EL34 tubes lasted only 6 months, so he sold the Dynaco and returned to one of his Sansui/Technics integrated amps.
A modern ST70 from builders like Kenny Russell, Will Vincent, VTA, etc. can certainly be end game for many. This especially for those trying to achieve the best sound within a given budget. The key being NOT to pair it with a 4 ohm speaker (I assume nominal) like the JBL mentioned. The magic of a tube amp like the ST70 is best realized when paired to a speaker with a benign impedance curve that stays above 4 ohms throughout the frequency range. In regard to speaker wire and tube amps, I've used ribbon, solid and stranded over the years. They've all worked fine Pick the one that best fits your ear and system.
Many Magnavox console single ended amplifiers from the hey day work best (more power/less distortion) into 4 ohm loads.There are many vintage and newer tube amplifiers that work fine with 4 ohm speakers.
Check Analog Ethos.I built the Legendarium and was very happy.
Tubes work with high voltage and the thin stranded wires will oxidize in short time with the passing current, but stranded wire is the darling of builders why it is easy to solder and Hard Wiring are very difficult to solder.
This is only at the trimmed ends or is the insulation (slightly) porous to air?
Quotes from Dave Gillespie referring to the Magnavox 8600 6BQ5 SEP."Using a a proper 4 ohm load and a mid band frequency of 1 kHz, each channel could develop just 2.3 watts of power before (unequal) clipping commenced.""Here channel 1 trying to develop 1.35 watts into an 8 ohm load at 1 kHz. Clipping is obvious,..."Don't know Dave G? Do some easy research, he has imparted more tube amplifier wisdom in a single sentence than some have their entire life of armchair typing.Ever see any tube amplifiers with 4 ohm taps? Why do they have them? A couple of weeks ago I had to move a ground in my ancient Magnavox to fix a hum and I cut the wire stripped it back a little and soldered it in a new location, the old wire was perfectly good to do its job. Countless people (like me) have refreshed tube amplifiers built decades ago and they put in new caps and resistors, but most leave the wire original. Why would they do that? Why do so many experienced amp builders use it? Because they know it does the job and will outlast them.
