Jadis JA30 - Quad ESL63 .. 4,8 or 16ohms?

I'm happy for you Philjolet

We are trying the 4ohms taps on the JA30 KT880 monoblocks .. and as Detlof wrote above .. bad registered Cds sound really tiresome with disturbing highs
But apart this the Quad ESL63 sound more open and with unbeliveable largest soundstage than with 16ohms taps just loosing a bith depth
In few words at 4 ohms they are gaining from 500/600 hertz to the audible limit .. while they are loosing a bit the tight low frequencies we got at 16 ohms

in 4 OHM mine sounded a bit thin in the mids but the bass seemed to jump out more. I was trying to cut back on bass but now, in 8 OHM, bass is softer not fuller, and the emphasis is on the midrange, which I like

I realize this is a Quad post (so I will stop hogging your space) but it is just funny to me Audio Note speakers and Audio Note amps work this way together, I presume 8 OHM is the intended hookup

Well Guys .. it seems we are in consert to agree the best ohms taps for tube amps paired with Quads ESL63 are the 8ohms.
Now we (me and Opera) are curious to know if you have experiences with OTL amps driving these speakers.
We never listened or tried OTL amps (like Atmasphere) but theoretically .. based on electrical impedance observational .. should be the best choice even over the Tube Amps (not OTL)

What do you think about?

Curio
You will have to borrow a pair of Atma-Sphere amplifiers to try with the Quads.

Natural sounding vocals are very high on my list.

With good recordings the illusion of a physical presence in the room is startling with the Atma Speres amps.
I used the Atma Sphere M60s with a refurbished pair of Quad 63s for a few years.

Tenor OTL amps I have also heard on the Quad 57s, just astounding.

Years ago the late Harvey Rosenburg bought the rights to the Futterman Otl amplfiers, re-worked the amp and used them exclusively on the Quads.

Thanks Stilskin!

You can't believe how much me and Giorgio are curious to try a OTL amp on the Quad ESL63s
Unfortunately we don't have any Atmasphere or Tenor Audio dealer around here to ask for a borrowing :-(