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アンプ Abbingdon Music Research AM-777のPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。Abbingdon Music Research AM-777 19 ページ。 Pre-main amplifier
3.1.9 Speaker Impedance Switch
At the rear of the AM-777, the 4R/8R speaker impedance switch (R12) allows the AM-777 to be
configured to correctly match the impedance of the speakers used.
3.1.10 Mains Voltage Switch
At the rear of the AM-777, the 115V/230V switch (R5) allows the AM-777 to be configured to correctly
match the local mains voltage.
Warning: setting this switch incorrectly may damage your AM-777!
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