Bose 901 Series III User Manual download pdf (Page 12)

Installation

2. Using Separate Components, Connecting Between the

Preamp and the Amplifier

The equalizer can be connected between separate pream

plifier and power amplifier units (see Figure 6) This connec

tion method provides complete flexibility of the preamplifier

tape monitor functions for use with one or two tape recorders

in the conventional manner The disadvantage of this con

nection method involves using conventional loudspeakers

and headphones because the equalizer is permanently

wired into the circuit. (See SECTION V) If you do connect

the equalizer in this manner, it is suggested that the gam

controls of your power amplifier be reduced slightly from

fully clockwise for optimum system noise (consult your

amplifier owner's manual for further recommendations).

3. Using the Preamp-Out/Main-ln Circuil

An alternate method of connecting the BOSE Active Equal

izer makes use of the PREAMP-OUT and MAIN-IN jacks

provided by many manufacturers on their receivers or inte

grated amplifiers (see Figure 6]. Using the PREAMP-OUT/

MAIN-IN connection jacks retains the total flexibility of the

tape monitor circuitry. However, this method of connection

permanently connects the equalizer in the circuit; this may

prove Inconvenient if you are using conventional speakers

or headphones. (See SECTION V.) Due to the circuitry char

acteristics of some receivers, the equalizer may not function

if connected to these jacks. Also, system noise may increase

slightly due to the connection of the equalizer immediately

before the power amplifier input

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Bose 901 Series III User Manual Page 12