Let A be a ring and let T be an n-term big tilting complex over A, represented by a bounded complex P of projective A-modules. Set B=_A(P), Λ:=_A(P) and Δ:=τ≤0Λ
Nearby in the stack
. The associated complex of
A
-
B
-bimodule
T=P_ΔB
is given. We construct an extension-closed exact subcategory
E
of
B
and prove that the derived category
B
admits a recollement by
E
and
A
. The proof passes through a dg double-centralizer description of a projective model of
T
and an exact realisation theorem identifying
E
with the kernel of the derived tensor functor. We further show that
E
is
d
-symmetric for every
d
not smaller than the amplitude of a perfect right
B
-model of
T
. Moreover,
E
is abelian if and only if the kernel is stable under the standard
t
-structure, equivalently, the recollement is induced by a homological ring epimorphism. In right
B
-amplitude at most one, the kernel is therefore abelian, and our construction specializes to the recollement arising from universal localisation in the two-term case. Thus the classical two-term picture extends to arbitrary finite-term big tilting complexes, with exact categories replacing abelian kernels in higher amplitude. Finally, we construct genuinely
n
-term non-compact big tilting complexes for every
n≥2
, including an explicit three-term example whose left-hand term is determined by an algebraic Calkin-type quotient.