KORG INC. 4015-2 Yanokuchi, Inagi-city, Tokyo 206-0812 Japan
2004 KORG INC.
1506 EH Printed in Japan
©
CE mark for European Harmonized Standards
CE mark which is attached to our company’s products of AC mains operated
apparatus until December 31, 1996 means it conforms to EMC Directive (89/
336/EEC) and CE mark Directive (93/68/EEC).
Warning
When installing, servicing, or replacing parts for this product, do not perform any
action that is not prescribed in the owner's manual.
And, CE mark which is attached after January 1, 1997 means it conforms to
EMC Directive (89/336/EEC), CE mark Directive (93/68/EEC) and Low Voltage
Directive (73/23/EEC).
Do not apply excessive force to the electronic components or connectors on the
circuit board, and do not disassemble it. Electrical shock, fire, or malfunction may
result.
Before installing this product, disconnect the power supply cable of the device in
which it is being installed, and disconnect any cables that connect peripheral
devices. Failure to do so may cause electrical shock or malfunctions.
Also, CE mark which is attached to our company’s products of Battery operated
apparatus means it conforms to EMC Directive (89/336/EEC) and CE mark
Directive (93/68/EEC).
IMPORTANT NOTICE TO CONSUMERS
This product has been manufactured according to strict specifications and
voltage requirements that are applicable in the country in which it is intended
that this product should be used. If you have purchased this product via the
internet, through mail order, and/or via a telephone sale, you must verify that
this product is intended to be used in the country in which you reside.
Caution
Do not allow this product to become wet, and do not place objects on top of it.
Doing so will cause malfunctions.
Before touching this product, touch a metal part of the device into which it will be
installed, so that any static electricity in your body will be discharged. Failure to do
so will risk damaging the electronic components by static electricity.
When handling this product, be careful not to touch the leads (wires protruding
from the electronic components) on the rear side of the circuit board. Injury may
result.
WARNING: Use of this product in any country other than that for which it is
intended could be dangerous and could invalidate the manufacturer's or
distributor's warranty.
Please also retain your receipt as proof of purchase otherwise your product
may be disqualified from the manufacturer's or distributor's warranty.
When installing this product, do not touch any unrelated parts or circuit boards.
Electric shock or malfunction may result.
When installing this product, be careful not to cut yourself on any sharp edges or
parts of this product or of the device into which this product is being installed.
When installing this product, be careful not to drop screws etc. into the device into
which this product is being installed.
Installing this product
For the procedure of installing this product, refer to the owner's manual of the
device into which the product is being installed. If you have any questions, please
contact your local Korg distributor.
Cautions when installing an option board
The manufacturer makes no warrantee regarding possible malfunctions or
damage that may result from improper use or modification. The manufacturer
also will take no responsibility for any damages that may result from loss or
disappearance of data.
In order to install the board correctly, please pay attention to the following points.
Be careful of static electricity, which may damage components inside the product
or on the board. Before beginning the installation, touch an unpainted metal part of
the chassis or the grounding terminal of a grounded device to discharge any static
electricity that may be present in your body.
Perform the installation according to the steps given in the directions, making sure
that the board is installed correctly and in the correct orientation.
Verify that the option board has been installed correctly. If installation is incorrect,
faulty connections or a shorted power supply can cause malfunctions.
All the screws that are removed will be used, so be careful not to lose any.
Using screws of the incorrect shape or length can cause malfunctions or damage
to the product. Use only the screws that were included with the option board or the
screws that were fastened in the instrument.
When installing or removing the board, be careful not to drop parts or the option
board into the instrument.
Make sure that the attaching screws are tightened firmly, and are not loose.
Handle the board with care. Subjecting it to physical shock (by dropping or
pressing it) may cause damage or malfunctions.
THE FCC REGULATION WARNING (for U.S.A.)
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of
the following measures:
• Reorient or relocate the receiving antenna.
Be careful not to touch any exposed metal portions of the circuit board, or any
parts that are not essential to the installation process.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules.
Unauthorized changes or modification to this system can void the user’s
authority to operate this equipment.
Operation is subject to the following two conditions: (1) This
device may n ot cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation.
Complies with Canadian ICES-003 Class B.
Conforme au Reglement Canadian NMB-003 classe B.
8. Level meter
1. Parts and their function
The meter shows the audio level. If the needle moves into the red
area above 0 dB, this indicates that digital clipping is occurring.
Set the gain trim knob and the compressor sensitivity knob to prevent
the needle from exceeding 0 dB.
1
9. Gain reduction LED
This LED will light when gain reduction is being applied by the
compressor.
2
3
10. Compressor sensitivity knob
This specifies the audio level where the compressor begins to kick in.
Turning the knob toward the right will increase the sensitivity, so that
compression will be applied even at low levels.
If you don’t want to apply compression, turn this knob all the way to
the left.
4
5
11. Link switch
Press this switch in to link the two channels together for use with
stereo sources. When linked, compression will be applied equally to
both channels whenever either channel exceeds the compressor’s
sensitivity threshold, preserving the stereo imaging.
6
7
8
9
10
11
1. INPUT 9, INPUT 10 jacks
These are balanced inputs that combine XLR jacks and 1/4” TRS
phone jacks.
Unbalanced phone plugs may also be connected to the 1/4” jacks.
If you are using a condenser mic requiring phantom power, connect it
to the XLR jack.
2. Operation
2-1. Assigning the input
2: HOT
1: GND
XLR jack
The inputs of the TPB-2 will show up as Input 9 and Input 10 on your
D32XD/D16XD. The audio sources connected to the TPB-2’s inputs can
be assigned to any of the mixer channels. (See D32XD/D16XD owner’s
manual, p.42 “1. Inputting audio to the mixer”)
3: COLD
1/4" TRS phone jack
Preamp input INPUT 9 is shown as the
as the icon.
icon, and INPUT10 is shown
If you are using a guitar or the line output from an instrument,
connect it to the TRS phone jack.
Balanced phone plug
Unbalanced phone plug
•Access the MIXER, INPUT/OUTPUT/CH ASSIGN, “Ch Assign”
tab page.
GND
GND HOT
COLD HOT
•Select “SOURCE” for the channel you want to assign, and use the
buttons to select
. You can also use the value dial or the
+/– keys to make this selection. In the same way, select
another channel.
for
2. Phantom power switch/LED
This switch supplies +48V phantom power to condenser mics. The
LED will light if +48V power is being supplied. Power is supplied
only to the XLR jack. Turn this off (LED dark) if you’re using a
dynamic mic.
2-2. Adjusting the input level
When you’ve finished making your connections, watch the TPB-2’s level
meter while you use the gain trim knob to adjust the level. Set the trim
knob so that the level meter needle does not exceed 0 dB when the
loudest sound is input.
If a condenser mic is connected or disconnected with the phantom power
switch on, damage to your equipment may occur. For this reason, always
turn the phantom power switch off before connecting or disconnecting a
condenser mic.
If the level meter goes beyond 0 dB even when the gain trim knob is
turned all the way toward the left, press the PAD switch and then use
the gain trim knob to adjust the level.
3. Gain trim knob
Normally if the needle goes beyond 0 dB, digital clipping has occurred, caus-
ing distortion. You should set the level so that it does not exceed 0 dB.
This knob adjusts the input gain. If the PAD switch is on (pushed in),
the range is +14 – –34 dBu. If the PAD switch is off, the range is –12 –
–60 dBu.
2-3. Using the compressor
urn the compressor sensitivity knob all the way to the left so that the
compressor is not being applied.
4. Hi-Z switch
This switch changes the impedance level of the TRS phone jack to
high impedance. It is on when the switch is pushed in. Turn this
switch on when connecting a high output impedance device such as
guitar or bass.
Use the gain trim knob to raise the level so that the meter slightly
exceeds 0 dB during the loudest input passages.
Slowly turn the compressor sensitivity knob toward the right. The gain
reduction LED will begin to light, indicating that the compressor is
being applied.
While watching the level meter, continue turning the compressor
sensitivity knob until the level does not exceed 0 dB during the loudest
input passages.
5. PAD switch
This switch lowers the level of the input signal by 26 dB. The pad is
on when the switch is pushed in. When a line level input source is
connected, turning the pad on will allow the gain trim knob to have a
wider useful range of adjustment.
If you want to apply a lot of compression to intentionally “squash” a
vocal, use the gain trim knob to raise the input level further, and turn the
compressor sensitivity knob toward the right to increase the compres-
sion.
6. Compressor mode switch
This switch changes the compressor’s response speed. Use the Fast
setting for short sounds such as drums or percussion, and the Slow
setting (press the switch in) for more sustained sounds, such as
vocals.
By using the gain trim knob to raise the preamp level appropriately, you can
saturate the vacuum tube, generating analog overtones to enrich the sound
in conjunction with the compressor.
7. Low cut switch
This switch activates a 70 Hz –6 dB/oct low cut filter.
Use this to reduce unwanted low-frequency content. The filter is on
when the switch is pressed in.
2-4. Using the link switch
4. Specifications
Turn on the link switch if you want to use stereo compression.
When you’re recording a stereo source, and the level of one channel rises
to the point where compression is being applied to only that one
channel, then the relative volume of the other channel will increase,
producing the impression that the stereo image has shifted to one side.
In such cases, turning on the link switch will automatically apply
compression to both channels at the same time, whenever either channel
reaches the compressor’s threshold level.
Input connectors:
Input impedance:
Nominal level:
XLR-3-31 type (+48 V phantom power, switchable),
1/4” TRS phone jack (balanced / unbalanced is Hi-Z)
4 k (XLR-3-31), 10 k (TRS phone Jacks),
1 M (TRS phone Jacks is Hi-Z)
–60 dBu to –12 dBu @ TRIM=max. — min PAD OFF
–34 dBu to +14 dBu @ TRIM=max. — min PAD ON
So that the compressors for both channels will function in the same way,
select the same compressor mode setting for both channels (either Fast
or Slow). You should also set the compressor sensitivity knob to about
the same setting for both channels.
Maximum level:
–48 dBu to 0 dBu @ TRIM=max. — min PAD OFF
–22 dBu to +26 dBu @ TRIM=max. — min PAD ON
Hi-Z
– 48 dBu to 0 dBu @ TRIM=max. — min PAD OFF
– 22 dBu to +12 dBu @ TRIM=max. — min PAD ON
3. A note about the vacuum tubes
Source impedance: ..................................................................................... 600
Vacuum tubes used: ................................................................................. 12AX7
Compression method: Vacuum tube compression using a photocoupler
Principal specifications
This device contains vacuum tubes. We recommend that you allow the
tubes to warm up for about ten minutes after you turn on the power,
before you begin running any audio signals through the TPB-2.
If you begin using this device immediately after turning on the power,
this may cause malfunctions and/or shorten the life of the vacuum
tubes.
Frequency response:
In order to maximize reliability, avoid placing this device above or
below heat-producing equipment such as a power amp.
10 Hz - 20 kHz 1 dB @ fs 44.1 kHz, +4 dBu, 10 k load
10 Hz - 22 kHz 1 dB @ fs 48 kHz, +4 dBu, 10 k load
10 Hz - 44 kHz 1 dB @ fs 96 kHz, +4 dBu, 10 k load
Do not attempt to remove, replace or change the tubes in the TPB-2. The
tubes are not a user serviceable part.
S/N: ............................................................................................. 93 dB (typical)
Vacuum tubes generate heat. Do not allow your skin to contact the vacuum
tube cover for an extended period of time. Doing so can cause low-tempera-
ture burns.
TPB-2 [ Tube Preamp Option ] for D32XD/D16XD
9
INPUT
PHANTOM
+48V
GAIN
TRIM
LEVEL METER
GR
HI-Z
TUBE
AD
PAD HA
PHASE
LOWCUT
COMP
SENS
LINK
10
INPUT
PHANTOM
+48V
GAIN
TRIM
LEVEL METER
GR
HI-Z
TUBE
AD
PAD HA
PHASE
LOWCUT
COMP
SENS
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