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12. 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.
13. Output level fader
This adjusts the output level.
When the fader is at the 0 dB position, the meter level will match the
output level.
14. Sampling frequency select switch
This switch selects the sampling frequency of the S/P DIF output.
You can choose from 44.1 kHz, 48 kHz, and 96 kHz.
15. S/P DIF output (optical, coaxial)
An optical jack and a coaxial jack (IEC 60958, EIAJ CP-1201) both
provide a S/P DIF format digital output.
Connect the digital output to the digital input jack of your other
equipment.
16. Analog output jack (XLR)
This is a balanced output jack using an XLR connector.
17. Analog output jack (TRS)
This is a balance output jack using a TRS phone jack.
18. Power switch
This is the power switch. Press it in to turn the power on. Pressing it
again will turn the power off and return the switch to the out
position.
19. AC9V connector
Connect the included AC/AC power supply here.
2. Operation
2-1. Connections
First connect the AC/AC power supply to the TP-2’s AC9V connec-
tor, and then plug it into an electrical outlet.
Start by connecting your external equipment.
Connect the AC/AC power supply. If you will be using the
digital output, set the sampling frequency select switch to the
correct frequency for your other gear, and then turn on the
power.
Before turning on the power, set the output level faders to – so that
sudden loud noise does not occur.
Guitar
Mic
to the
AC outlet
to digital
input devices
to a mixer
or HDR
2-2. Adjusting the input level
When you’ve finished making your connections, watch the TP-
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 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.
Normally if the needle goes beyond 0 dB, digital clipping has oc-
curred, causing distortion. You should set the level so that it does
not exceed 0 dB.
2-3. Using the compressor
Turn the compressor sensitivity knob all the way to the left so
that the compressor is not being applied.
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.
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 compression.
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.
2-4. Using the link switch
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.
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 compres-
sor sensitivity knob to about the same setting for both channels.
3. A note about the vacuum tubes
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 TP-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.
In order to maximize reliability, avoid placing this device above
or below heat-producing equipment such as a power amp.
Do not attempt to remove, replace or change the tubes in the TP-2.
The tubes are not a user serviceable part.
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-temperature burns.