The NOLL TCM 4 XM is a compact equalizer that provides easy and space-saving installation.
The secure insulation of the sealed equalizer perfectly protects other electrical components.

Bass, low midrange, high midrange and treble controls are center-detented and allow 15dB of boost
and cut with a gentle slope of 6dB per octave which results in a natural and true sound.

Active/passive-switch by volume(push-pull)-pot.

The equalizer is 9-Volt battery powered, adding an additional 9-Volt battery (18V) will ensure
more headroom.

The NOLL TCM 4 XM onboard preamp can be combined with both active and passive pickups.

Note regarding use with active pickups:
Please note that the standard balance potentiometer does not work with active pickups and must
be replaced with a low-resistance potentiometer  >> available on request for an additional charge!
The volume (push-pull) potentiometer is also replaced with a non-switching pot when used with active pickups !

All units are prewired with high flexible cables, all pots, jack and battery clip.

The following drill diameters are required for the potentiometers:
Volume(pp), bass, treble, low mid, high mid, balance, passive tone pot: 8 mm
Concentric(double) pots = volume(pp)/balance , bass/treble, low mid/high mid: 10 mm

Potentiometers have 6 mm solid shafts, while the stacked pot has 4 mm (upper) and 6 mm (lower)
solid shafts. Screwable knobs are required !

Knobs are not included in delivery.

Required electronic compartment depth: 27mm,
for configurations with concentric volume(pp) balance-Pot: 34 mm

Below you will find the TCM 4 XM electronics with various potentiometer configurations.

Further custom configurations are available on request.