Telonics PRE-200 Preamplifier
11
PB-008684 Rev A
F
REQUENTLY
A
SKED
Q
UESTIONS
(C
ONTINUED
)
What kind of headphones should I use?
Use low impedance (35-60 ohms) stereo closed or open style depending on personal preference.
Sony MDR 7505 headphones are recommended for best fidelity.
Can I drive speakers with the headphone jack?
It was designed for headphones. The preamp will deliver up to half a watt per channel into
eight ohms from its internal stereo headphone amp.
What do the red LED indicators show?
The Preamp Overload LED shows when the preamp input stage enters soft clipping. The Master
Level Overload LED shows when the output stage enters soft clipping. Although you might see
them light up on rare occasions, you’ll probably never hear the difference.
Tell me about the Tuner Out function.
The Tuner Out jacks have a buffer stage and circuitry which isolates both outputs of the tuner
from the rest of the circuitry eliminating a common source of noise. This circuit will not load
down the pickup or any preamp stage. The front and rear panel jacks can be used at the same
time. The Tuner Out can also be used as an effects send.
What does the Mute button do?
When engaged, the mute function allows the tuner, headphone amp, and effects send and return
to remain on while the power amp send and XLR direct out feed are disabled. This way you can
practice at home or in between songs on stage without your power amp on and still get a stereo
feed to your headphones complete with stereo effects. Use it to mute your output while changing
a string, tuning up or adjusting the effects unit.
Will pushing the Mute button send a loud “pop” into my speakers, headphones or
the XLR Direct Out (the house feed) when I activate it?
No, the preamp employs silent muting circuitry.
How do I use the Aux In feature?
The Aux In may be used to input stereo rhythm tracks or background music from CD or MP3
players. The Aux In feature can also function like a second stereo effects return. It can be used
as a way to inject practice music into the main channels and/or headphones or to add a second
effects return. The amount of music or effects level is determined by the output level of the
music or effects player and the Aux In Level control.
Can I safely run phantom power into my Direct Out circuit?
While it is not necessary (nor a good idea) to run phantom voltage into the Direct Out connector,
it is designed to withstand the IEC specified maximum of 10 milliamps without damage.
What output level can I expect to see from the Direct Out connector?
The output is approximately two dB lower than the main outputs, up to 5 volts maximum.
