Unbalanced wiring works with either a two- or three-conductor TRS connector.
A two-conductor TRS plug automatically grounds the minus signal input,
whereas a three-conductor TRS plug wired unbalanced provides the option of
leaving the minus open or grounded. We recommend that you ground the
unused input.

The TRS input is summed together with an XLR input through a balanced input
amplifier, allowing both inputs to be used simultaneously. Input specifications
apply to both inputs.

3. PRODUCT LABEL: This label contains the model and serial number information.

4. VENT PORT: This port aids in reproduction of very low frequencies by

discharging frequencies below 30 Hz..

5. VOLUME CONTROL: Use the volume control to set the output sound pressure

from the BX8 to proper levels as required.

6. LOW CUTOFF: This 3-position switch sets the bass rolloff cutoff frequency.The

lowest setting, 37Hz, is essentially a low cutoff bypass as it does not attenuate

the BX8’s frequency response. Other settings are 47Hz and 80Hz.

7. MID-RANGE: Two selections are possible,“Flat” and “Presence.” The Flat setting

produces a flat frequency response curve, while the Presence setting gives a

boost in the mid-range frequencies.

8. HIGH FREQ: Three settings are possible, 0dB, -2dB, and -4dB. 0dB is a “flat”

setting with no attenuation, while the -2dB and -4dBsettings will attenuate the

high frequencies (to 5kHz) by 2dB and 4dB respectively.

9. ACOUSTIC SPACE: This 3-position switch is designed to compensate for

different speaker placements. Please see the section, “Setting the Acoustic Space

Switch” for more information.

10. POWER SWITCH:This switch turns the monitor on and off.The on position is

indicated by the marking “I”.

11. POWER RECEPTACLE: Accepts a detachable 3-circuit line cord in order to

power the monitor.

12. FUSE HOLDER: Holds the external main fuse.

13. VOLTAGE-SELECT SWITCH: Provides 2 selections - 115VAC and 230VAC, and

should be set to match the “house current” (receptacle) voltage of the country

or location in which the speaker is used.The 115V setting is correct for the USA,

while the 230V setting correct for most of the UK and Europe.

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