Peavey TKO 65

THE FRONT PANEL
ON/OFF
SWITCH:
the
on/oif
switch
is
a
rocker-type
switch
and
should
present
no
problems
in
operation.
In
the
on
position,
a
red
LED
will
iluminate
showing
that
power
is
being
supplied
to
the
unit.
NOTE:
WHEN
THE
UNIT
IS
TURNED
ON,
THE
COMPRESSION
LED
INDICATOR
(DDT) WILL
MOMENTARILY
ILLUMINATE.
GROUND SWITCH: The ground switch is a 3-position rocker-type switch which, in most applications, should
bbe
operated
in
its
conter
or
"zero"
position
You
may
encounter
some
situations
where
an
audible
hum
and/or
noise will come from the loudspeaker. If this situation arises, position the ground switch to either positive or
negative
until
the
noise
is
minimized.
NOTE:
SHOULD
THE
NOISE
PROBLEM
CONTINUE,
CONSULT
YOUR
AUTHORIZED PEAVEY DEALER, PEAVEY FACTORY OR QUALIFIED SERVICE TECHNICIAN. DO NOT,
UNDER
ANY
CIRCUMSTANCES,
REMOVE
THE
GROUND
PIN
ON
THE
MAIN
(POWER)
CABLE
DDT™ COMPRESSION LED: The TKO™ 65 utilizes our patented DDT™ (Distortion Dotection Technique)
compression circuit to effectively minimize the possibility of distortion (square waves) from entering the
loudspeaker. (U.S. Patent #4,318,053)
As mentioned in the on/off switch section, the DDT™ LED will sometimes illuminate wnen the unitis first
turned on and this should be considered normal, The DDT™ LED will also occasionally illuminate to indicate
that the DDT" circuit is automatically engaging to prevent distortion. NOTE: IF THE DDT™ LED REMAINS
CONTINUOUSLY LIT WHILE YOU ARE PLAYING, THIS IS AN INDICATION THAT THE GAIN (VOLUME)
CONTROLS
AND/OR
EQUALIZATION
CONTROLS
ARE
SET
AT
POSITIONS
THAT
IS
MAKING
THE
POWER AMP OVERWORK, ALTHOUGH THE DDT", IN MOST CASES, WILL PREVENT SPEAKER DAMAGE
AND/OR FAILURE WE WOULD RECOMMEND, THAT THE GAIN AND EQUALIZATION CONTROLS 8E
READJUSTED UNTIL THE DDT LED WILL ILLUMINATE PERIODICALLY.
PATCH SECTION: The patch section consists of two jacks labeled preamp out and poweramp in. Primarily the
preamp output and power amp input jacks are used for patching effects devices and signal processing
equipment “in-line” with the TKO™ 65. Most of devices suchas flangers, chorus, tape/anelog/digital delays or
gain devices such as external compressors can be used within this effects loop. The preamp output level is
approximately 1 volt RMS and is of relatively low impedance- 1000 ohms. To utilize the effects loop, use a high
quality,
shielded
patch
cord
and
plug
one
end
into
the
preamp
output
and
the
other
end
into
the
external
device
Input To return the processed signal to the TKO" 65, use a second high quality, shielded patch cord and plug
one
end
into
the
external
unit
output
and
the
other
end
of
the
patch
cord
into
the
power
amp
input.
Since this method of using an effect places the device after the preamp/ equalization and before the power
‘amp
you
will
nave
&
greater
degree
of
control
over
the
sound
quality
of
the
device
or
signal
processing
unit.
The
preamp output canalso be used to send the signal of the instrument/ preamp to mixing and recording consoles.
For this method use a high quality, shielded patch cord and make the connection from the TKO" 68's preamp
output tothe desired channel of tha mixer or to an auxiliary device where the signal is not to be returned to the
power amp input of the TKO™ 65. With this method of sending your instruments signal to a mixer or auxiliary
device, you do not have to utilize the power amp input as the signal will automatically feed the power amp
section. (For further uses of the preamp output/power amp input see bi-amping the TKO")
EQUALIZATION SECTION
The equalization contrals (presence, high. mid, shift and low) are a unique combination of active and
passive circuits to enable you to achieve a multitude of tonal colors. By design, with the exception of the
presence control, the tonal capabilities of the low, mid and high controls will slightly interact with each other.
PRESENCE CONTROL: The presence control should be used to adjust the extreme high end (treble) of the
bass guitar or Keyboard signal. This is an active control and, as such, will cause no effect on the other controls
when placed at its 12 o'clock or zero position. For less Nigh end response, rotate the presence control
counterclockwise (zero to -12 dB) until achieving the desired high end roll off To boost the high end response
of the preamp, rotate the control clockwise (zero to 12. dB), The boost portions of this control are extremely
effective for enhancing neck slapping/string popping techniques (see tone setting charts for further
examples)
HIGH CONTROL: The high control is conventional and should present no problem in operation. Clockwise
rotation will increase the systems trable response while counterclockwise rotation will reduce the high end. In
conjunction
with
the
presence
control,
the
high
control
will
lurther
enhance
many
contemporary
bass
playing
techniques (see the tone setting charts for further examples).
MID AND SHIFT CONTROLS: The mid and shiftcontrols will enable you to have complete control over tne vital
mid-band frequencies. The mid control is a equalization circuit allowing superb tailoring of the mid-band and
the shift control allows the bassist and keyboardist to determineat what lrequency the mid control will operate.
To get you acquainted with these two very flexible controls, do the following experiment
uf 4. Plug the instrument into the high or low gain jack
Be 2. Adjust the pre gain control to #2 or #3, making sure that the pull bright switch is off
ty 3. Adjust the post gain control above its 12 o'clock or #5 position making sure thet Ihe pull punch switch is
È in its off position (not pulled out).
4, Place the mid control somewhere between 2 and 5.
Piey your open first (G) atring (or strike a note in the middle of the keyboard range) and allow it to
sustain.
6. As the note sustains, manually sweep the shitt contro! from its 150 position to Its 1.5K position.
As the shift control is swept notice the dramatic changes occurring in the tonality of the mid-band.
‘Through experimentation, you will be ableto determine what settings are appropriate for your musical styles. A
good rule of thumb for the operation of tne mid and shift controls is: For a well defined, tignt sound
(country/jazz)
more
mid
cut
and
lower
operation
of
the
shift
control
is
desireable
whereas,
for
rock,
more
mid
boost end higher operation of the shift control is needed.
LOW CONTROL: The low control is a conventional EQ circuit designed to provide smooth, gradual increases in
bass response over its entire range, Although Ihe low control should present noproblem in operation, it should
be noted that "overboosting’” of the low control may cause the TKO™ 65's DDT™ compression LED to activate
prematurely — even at low volume levels. Usually, this occurrence can be corrected by cutting (reducing) the
low control until the DOT™ LED activates periodically