TC Electronic Classic 450, User Manual, Page: 12 / 16

3 + 4 – SEND TUNER OUT + RETURN
These jacks provide a break point between the Classic450’s
preamp section (which includes SpectraComp™, Tone controls
and the TubeTone™ module) and the power amp section. This
break point can be used as a regular serial effects loop for
inserting e.g. modulation effects or for other external devices,
such as a tuner.
When you connect a tuner to the SEND TUNER OUT jack, this
tuner will receive a signal even when you have muted the
speaker and line driver outputs by pressing the MUTE button on
the front panel.
Linking Two Amps
The SEND TUNER OUT and RETURN effects loop jacks may
also be used to link two Classic450 units together to achieve
even more power.
–
Use a standard ¼" jack instrument cable to connect the first
Classic450’s SEND TUNER OUT jack (the upper of the two
jacks) to the second Classic450’s RETURN jack.
– Plug your bass into the INPUT jack on the first Classic450
and adjust your sound using the controls on this Classic450.
– Set the volume using the MASTER volume knobs of both
amps. You now have tons of amplification power at your
fingertips!
5 – PRE/POST switch
The PRE/POST switch determines the position of the tap-point
for the LINE DRIVER OUT. In “pre” position the signal is tapped
right after the input gain control. In “post” position the signal is
tapped after the Spectracomp, tonecontrols and Tubetone section.
6 – LINE DRIVER OUT – Balanced Line Out
Use the LINE DRIVER OUT jack to connect the Classic450 to
your band’s PA when you play on stage or to connect your amp
to a recording device when you are in the studio.
To determine where in the signal chain the signal for the
balanced output should be tapped, use the PRE/POST switch
located right beside the LINE DRIVER OUT jack.
The Classic450’s MUTE button mutes the balanced
output as well as the speaker outputs. This means that
you can tune up with no sound going to your own rig or
to the PA.
The Classic450’s balanced output has been designed with the
utmost care for great sound. This is achieved through
galvanically isolated transformer coupling. The active design
outperforms most standard DI boxes by far, and it is capable of
driving long cable hauls. No phantom power is required.
Ventilation
Be sure not to cover the black cooling plate of the Classic450!
Insufficient ventilation may cause the amplifier’s temperature to
increase.
OPERATION – REAR PANEL
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