Introduction Thank you for purchasing the Wyetech Labs Pearl preamplifier. You are in possession of one of the best sounding, most ruggedly constructed preamplifiers on the consumer market. This unit has been completely hand crafted using precision quality components. Our goal was to duplicate the sound of the Opal in a one box configuration.
To change the gain settings, you must remove the top cover (see instructions on page 7). The analog board on the left contains the left and right channel switches to select high or low gain. Pearl preamplifier – owner’s manual...
LED (MUTE) will turn off allowing the music to play. Remember if you left the muting switch in the on position the green LED will not come on even though the power up sequence is completed. Pearl preamplifier – owner’s manual...
Muting of the output on power up prevents any noises or thumps from reaching the speakers and it is disengaged after a 45 second time-out. The preamp remains quiet at all times. Front panel of the Pearl (left to right): Source sector, tape/source switch, balance control, volume control, mute switch, indicator lamps.
Back panel The back panel of the Pearl has the on/off power switch, the fuse, the power cable connector, the voltage selection switch (60hz/115V or 50Hz/230V), and a bank of RCA connectors. The connectors include: two preamp outputs, a line level out, a tape input and output, and four line level source inputs.
3 tubes can be interchanged since they of the same type. To troubleshoot, you can swap tubes between positions. If problem moves to other channel you should replace faulty tube. In the unlikely event you are experiencing other problems consult your dealer for help. Pearl preamplifier – owner’s manual...
L M R Swap tubes: R M L Did problem move to other channel? Swap tubes: M R L Replace tube R M L Did problem move to other channel? Consult dealer / return for repair Pearl preamplifier – owner’s manual...
In no event will Wyetech Labs be responsible or liable for other than is stated herein, such as incidental or consequential damage, interrupted operation or other causes.
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