PMC twenty-21 - Connecting the twenty.26 to an Amplifier; Advanced Connection Options (twenty.26); Twenty.26 Terminal Identification

Standard / Single wiring connection
Connect using any of the three pairs of RED+/BLACK- terminals. Ensure the linking
bars are secure and the binding posts are nger tight.
Advanced connection / Bi-wiring & Bi-amping
The twenty.26 can also be bi-wired, bi-amped, tri-wired or tri-amplied. By loosening
all six rear binding posts, the linking bars can be removed so separate signals can
be fed to the LF (Woofer), MF (50mm Dome) and HF (Tweeter) drivers. Ensure the
binding posts are re-tightened after the linking bars are removed.
Both bi-wiring and bi-amping use two lengths of cable per speaker, tri-
wiring and tri-amping use three lengths per speaker. Bi-amping also
uses two separate ampliers; tri-amping uses three, one for each driver.
Please consult your dealer regarding the benets and the correct procedure.
Terminal identication
Top pair of terminals - HF / High Frequency / Tweeter
Middle pair of terminals - MF / Mid Frequency / 50mm Dome
Bottom pair of terminals - LF / Bass Frequency / Woofer
Back panel
Connecting to an amplier
Tip
Tip
Standard/single wiring
Bi-wiring
Tri-wiring
Bi-amp wiring
Tri-amp wiring
HF
LF
MF
HF
LF
+
-
MF
HF
LF
MF
HF
LF
MF
+
+
-
-
+
-
HF
LF
MF
+
+
-
-
HF
MF
LF
HF & MF
LF