clearaudio Multi Installation Gauge User Manual
- June 9, 2024
- clearaudio
Table of Contents
clearaudio Multi Installation Gauge
Package contents
| 1. | Scale plate | 4. | Ruler with pre-mounted centre pin |
|---|---|---|---|
| 2. | Speed light | 5. | User manual (not shown) |
| 3. | Mounting block |
Cartridge alignment gauge
Using the Clearaudio cartridge alignment gauge
It is essential to ensure that the distance between the turntable spindle and
the centre of the tonearm bearing is correct (as per the arm manufacturer’s
instructions). For Clearaudio radial tonearms this distance is 222mm for 9”
models or 295mm for 12” models. For different tonearm lengths and/or for other
manufacturers’ tonearms, please refer to the relevant user manual.
To measure the distance, place the alignment gauge on the turntable spindle
and align the centre pin with the centre of the tonearm bearing. Use the ruler
to measure the distance between the turntable spindle and the centre of the
tonearm bearing. If the distance is not correct then the tonearm must be
adjusted, again following the guidelines from the relevant user manual.
Once the tonearm is correctly positioned you can lock the ruler in place using
the two knurled screws on the mounting block.
Now you can remove the stylus protector and begin the adjustment of the
cartridge.
Please proceed carefully so as not to damage the cartridge.
Make sure that the cartridge is loosely mounted in the headshell. Carefully
lower the cartridge onto the scale plate.
The goal is for the stylus to land in the centre of the reference point (Pic.
- and for the cartridge body to be parallel to the lines on the scale plate (Pic. 2). To achieve this, you will need to gently move the cartridge within the headshell: backwards, forwards and rotationally.
Please note:
Do not adjust the cartridge while it is resting on the scale plate; always use
the lever to lift it before adjusting, then lower it again afterwards to
check.
After completing the adjustment, tighten the cartridge mounting screws to
secure the cartridge in the headshell. Check the alignment again after
tightening the screws (as the action of tightening can cause a very slight
movement) and adjust again if necessary.
You have now completed the alignment of your tonearm and cartridge
.
Stroboscope test record
The Clearaudio Stroboscope test record and 300Hz speed light enable you to
make extremely precise speed adjustments to your turntable.
Dramatic sound improvements can be achieved with precisely calibrated speeds.
There are three speed settings: 33.3rpm, 45rpm and 78rpm (starting from the
outer diameter).
By using the speed light (AC039) you achieve an even more accurate setting, completely independent of the mains electricity frequency of your country. The 300Hz calibrated light, used as an external light source, is unaffected by the potential power fluctuations that can influence the result when using regular mains powered light. The 300Hz frequency of the speed light is generated by a stabilized quartz oscillator and enables a very exact adjustment.
Please put the Stroboscope test record on your turntable with the rings of
fine stroboscope lines facing upward. The Stroboscope test record will measure
three different speeds: the outer ring indicates the speed at 33.3rpm, the
middle ring 45rpm and the innermost ring indicates the speed at 78rpm.
Now start the turntable motor and select the speed that you wish to measure.
Press the button of the speed light and hold it over the scale so that it
shines onto the strobe ring. The lines of the strobe ring indicating the
chosen speed should appear to be stationary. If they are moving, then adjust
the turntable speed according to the turntable user manual until the lines do
not appear to move.
- If the lines move clockwise, the speed is too fast.
- If the lines move anti-clockwise, the speed is too slow.
Once you have set the exact speed, you can enjoy the full potential of your vinyl collection.
Technical data
Speed light
- Light source: Blue LED / 300Hz precision light source (calibrated)
- Battery: V 23GA – 12V – alkaline (Art.-No.: AC039/B)
Please note:
An insufficient battery voltage can lead to inaccurate measurement results,
even if the voltage is still sufficient to light the blue LED.
In case of extreme fluctuations in the measurement results, we recommend
replacing the battery.
clearaudio electronic GmbH
Spardorfer Straße 150
91054 Erlangen
Germany
Phone /Tel.: +49 9131 40300 100
Fax: +49 9131 40300 119
www.clearaudio.de
www.analogshop.de
[email protected]
Handmade in Germany
Änderungen bleiben vorbehalten. Lieferbar solange Vorrat reicht. Für
Druckfehler keine Haftung. Irrtümer vorbehalten- Kopien und Abdrucke – auch
nur auszugsweise – bedürfen der schriftlichen Genehmigung durch die clearaudio
electronic GmbH.
Clearaudio Electronic accepts no liability for any misprints.
Technical specifications are subject to change or improvement without prior
notice.
Product availability is as long as stock lasts.
Copies and reprints of this document, including extracts, require written
consent from Clearaudio Electronic GmbH, Germany.
2022