Manley MONO VARIABLE MU LIMITER / COMPRESSOR 5670 MODELS - Manual (Page 7)

REAR PANEL
TUBE LAYOUT
A B C D E F
A IEC MAINS SOCKET Standard 3 pin AC mains socket. See the section MAINS
CONNECTIONS for more details.
B FUSE HOLDER Houses a standard 1 Amp SLO-BLO fuse. Replace only with the
same type and size.
C GROUND TERMINALS Separate terminals for CIRCUIT (audio) GROUND and CHASSIS
(AC) GROUND. Typically these should be joined with the flat
jumper supplied. Hum problems or various grounding options are
available by different connections to these terminals.
D OUTPUT XLR 3 Pin male XLR BALANCED. Pin 1 - Ground
Pin 2 - Positive going phase (+)
Pin 3 - Negative going phase (-)
E LINK TERMINAL Using two units for stereo it is recommended that these terminals
be joined. This "LINKS" the units and both will reduce gain by
the same amount. Use similar settings for best results.
E INPUT XLR 3 Pin female XLR BALANCED. Pin 1 - Ground
Pin 2 - Positive going phase (+)
Pin 3 - Negative going phase (-)
12AX7A 5670 12BH7 12AL5
COMP
ZERO
BALANCE
DISTORTION
TRIM
METER CAL