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RACKTUNER BTR2000
DEUTSCH
4.3.1 Manual calibration
The pitch of the standard A is set to a particular frequency using the BTR2000 control panel.
1. Depress the TRANSPOSE/REF button for at least two seconds. The ¹440 LED flashes. The
display shows the frequency currently set for the standard A, e.g. 440.
2. You can adjust the pitch of the standard A by up to 12 Hz higher or lower by turning the wheel.
3. When you press the TRANSPOSE/REF button again for at least two seconds, the unit saves the
frequency you set for standard A, the frequency is no longer displayed and the ¹440 light stops
flashing.
4. If the pitch of the standard A is other than 440Hz, the ¹440 LED above the TRANSPOSE/REF
button lights up.
4.3.2 Automatic calibration
The BTR2000 recognizes a pitch played on an instrument plugged into the unit or into the integrated
microphone. The corresponding A is determined and stored.
+ Any note can be played for the automatic calibration.
1. Connect your instrument to an input of the BTR2000. You can also use the built-in microphone
(select INPUT 2 and press the MUTE button).
2. Depress the TRANSPOSE/REF button for at least two seconds. The display shows the frequency
currently set for the standard A and the ¹440 light flashes above the TRANSPOSE/REF button
during the entire process.
3. Turn the frequency all the way down (to the left) with the wheel. After the lowest possible
frequency for the standard A (428Hz), auT appears on the display, automatic calibration is
activated and the unit waits for an input frequency.
4. Play a note. The display shows the name of the note closest to the one you played. The LED bar
indicates the deviation from the displayed note. If this is unsatisfactory, you can play the note
again. You can cancel the calibration by pressing and holding the TRANSPOSE/REF button.
+ If the input note is too unstable or too soft, the automatic calibration cannot proceed.
5. If the note is satisfactory and the display in the LED bar is stable, you must briefly press the
TRANSPOSE/REF button. The BTR2000 stores a standard A pitch that is attuned to the note
you played. The frequency of this A is displayed.
6. The calibration is completed by pressing and holding the TRANSPOSE/REF button. If you do
not hold the button long enough, the calibration process restarts.
7. If the pitch of the standard A is other than 440Hz, the ¹440 LED above the TRANSPOSE/REF
button lights up.
In order to change the frequency of a stored standard A, press the TRANSPOSE/REF button for at
least one second and adjust the frequency using the wheel.
4.4 Transposition
For certain applications, it may be useful to shift the tuning of the instrument by a few half-tones.
Easier interplay with other instruments
Say a song needs to have brass accompaniment. While pieces in a flat key (such as F major (1 flat), B
flat major (2 flats) and C minor (3 flats)) are especially well suited to brass, many guitarists and bassists
are not very comfortable playing in these keys. There are several options for playing such pieces:
s The guitarist and bassist play the complicated fingerings of the flat keys.
s These two players instruments are tuned (transposed) so that the easier fingerings of a different
key (e.g. C major or G major) can be used to produce the correct chords in the actual key of the
piece.
Achieve a specific sound
With a different tuning, the tension on the strings is different. This change creates different overtones
when the strings are played, giving the instrument a different sound.
The BTR2000 lets you complete such a transposition easily and accurately.
4. TUNER