Jim Lesurf wrote:


Any idea what's the best way to stack ESL57's? Should they be coplanar
or focussed at the listener's head?


Bit of a can of worms... :-)

My own preference for serious use would be vertical stacking in a fairly
strong frame, but with the units angled to converge their axies at the
listening position. However acheiving this and getting good results is a
bit of challenge.

An alternative is to deliberately fire one pair off sideways at an angle,
thus ensuring the listener is well off axis at HF for one pair. This can
improve things, and is the sort of approach that ARA employed. However this
is all very room specific, so it really comes down to 'experiment until
happy or exhausted!" :-)

These days I would not personally be tempted to try this route, I'd just
buy a pair of 988's or 989's... :-) My own view is that PJW knew what he
was doing when he replaced the 57 with the 63, and the 988 is essentially
(so I understand) just a 63 with better components and a more rigid
physical assembly.


Thanks.
I might try your method or one of the following:
Isobarik.
Two rooms.
Sell a pair on ebay.
Home theatre.

Roger.