Telonics TCA-500 Combo Amp
15
PB-009289 Rev _ PRELIMINARY
TCA-500
C
OMBO
A
MP
C
ONTROL
F
UNCTIONS
,
J
ACKS
,
&
I
NDICATORS
:
F
RONT
P
ANEL
(
CONTINUED
)
Direct Out
Level – Gnd Lift
This level adjustment will allow you to match the DO signal you are sending, to
the proper level required by the mixer board or recording device. Most line level
devices are 4dB or -10dB. You can adjust for either,
however, you can
also adjust your Direct Output signal low enough for microphone inputs
with below -30dB adjustment- this is an unusual capability. This allows you
to use your high quality balanced XLR Direct Output with low end mixer
boards which only provide mic level inputs. (A very handy capability when
you walk into a new venue cold and have no idea what the sound person
might have to work with.)
The DO in the TCA-500 is analog modeled to deliver to a flat response
system, a very closely EQ’d approximation to what is output from the combo
speaker in its cabinet.
The signal sent from the XLR connection is balanced line and male
gendered (standard XLR out). The GND Lift pushbutton allows the
combo earth to be separated from the DI earth to assist with hum ground
loop issues. The front panel Direct Level control allows the signal sent
to the desk/house board to be easily adjusted over a wide range.
Note; when the PA ON (Power Amp On/Off) button is Off (i.e. no
sound is output from the combo speaker, but the headphones output is
still active), the DO output remains ON because the preamplifier section
is ON.
