Hi
@Strayngs,
Primaluna tube amps, the headphone sections, at any rate, are definitely more than powerful enough, though the more accurate word here would be
Current as they definitely have more than enough to run an LCD 4 with no issues whatsoever.
The speaker sections are also quite decent but more on that in a bit...
Where head amps or head amp sections differ from speaker amps or speaker sections, is more current, rather than power or wattage is always more useful though unless a given speaker is hard to drive, 4 Ohms or 2 Ohms, then most speakers (6 Ohms+) can get away with low current but still need high power & or watts to shine which is why it is still better to have high current overall.
Also, where tube amps are concerned, it will also depend on what driver & power tubes are used as well as how many of each are involved in running the amp.
Using EVO 100 as an example, as far as tube series goes, 12 AU7 & 12 AX7 are esentially the same driver tube with some difference in the heater array, either way, both types have good driving power as well as stable current, not to mention I'm pretty sure (don't quote me on this) the 12 AX7 are doing double duty as a rectifier or voltage correction to help stablise overall electrical current.
Depending on how they are used & wired in a tube amp, EL 34 are considered mid range for straight power but most of all
STABLEwhich is why the driver stage tends to more important as generally in tube design, a single power tube will run most tube amps fine but it will depend on what & how many driver tubes are used as previously stated.
But generally, more driver tubes is better than more power as previously stated above as current is really what matters.
Honestly, subjectively & personally, EVO 100 (Non DAC) is on my short list for
affordable basic high end tube amps.
Unfortunately, I haven't heard the HA 300 as there are no demo units or Cayin dealers where I am so can't tell you but I have demo the WA 22 quite a bit.
Personally, I prefer EVO 100 for overall sound quality, synergy, clarity, imaging & staging.
As a final note, Loxjie P20 is a good, highly affordable amp with good current which can run most tricky &/or hard to drive headphones with ease, I suggest looking into this too.
Hope this all makes sense, feel free to ask more when you need.
Hope you have a great day !
