Boulder 1008 Specifications download pdf (Page 19)

LOW CUT FILTER

The Boulder 1008 Phono Preamplifier uses a 3 pole (18 dB/octave)

low cut filter which is -3db at 10 Hz.

Because this filter is fairly steep, its effect is virtually negligible in

the audio band. It is recommended that it be kept turned on in order to

avoid excessive woofer travel caused by imperfect records.

Select the low cut filter by pressing the pushbutton labeled LOW

CUT. The indicator will then be amber.

To completely turn off the filter, again press the pushbutton labeled

LOW CUT. The low cut filter will be switched out and the indicator

will turn off.

WARNING: Due to some low frequency content of many record-

ings, care should be taken in regard to volume level when turning the

low cut filter on or off as there may be some audible transient (click).

This effect is normal.

OPERATION

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Boulder 1008 Specifications Page 19