BIG KNOB

PHONES AMP and STUDIO OUT

The PHONES AMP and STUDIO OUTS have the option of being fed signal by the currently selected INPUT SOURCE SELECT buttons (thus mirroring the mix being heard by the engineer) or the signal connected to the DAW PHONES MIX INPUT connectors (thus providing a separate unique monitoring mix for the talent).

This allows the engineer to listen to his or her own master mix in the control room, while allowing the talent to listen to a customized headphone mix at the same time through the PHONES 1 or 2 outputs on the front panel or through an external headphone amp connected to the PHONES AMP OUTPUT on the rear panel, as well as the studio monitor outs (STUDIO OUTS). The choice of which stereo signal (current source or headphone mix input) is heard is determined by the PHONES/STUDIO OUTS SOURCE

select button on the front panel.

PHONES AMP OUTPUTS

Connect these stereo 1/4-inch balanced/unbalanced connectors to an external multi-headphone amplifi- er. This allows you to connect multiple sets of headphones for the talent. The PHONES AMP OUTPUT level is not affected by the Big VOLUME Knob or the headphone level controls on the front panel. The headphone amplifier should have its own individual volume controls for the headphones.

PHONES AMP Level Switch

This two-position switch sets the level of the PHONES AMP outputs to either +4 dB (out) or –10 dB (pushed in). Use the +4 dB setting when connecting to balanced inputs on professional equipment operating at the

+4 dBu standard, and use the –10 dB setting when connecting to unbalanced inputs on consumer equipment operating at the –10 dBV standard.

STUDIO OUTS

Connect these stereo 1/4-inch balanced/unbalanced connectors to a pair of active monitors (or to an amplifier and passive monitors) in the studio performance space. This allows the performers to hear playback without having to use headphones, and allows the control room engineer to communicate to the performers through the talkback system. The STUDIO OUTS level is controlled by the STUDIO OUTS LEVEL control on the front panel.

STUDIO OUTS Trim Control

This trim control adjusts the sensitivity of the STUDIO OUTS signal. Use the +4 dB setting when connecting to balanced inputs on professional equipment operating at the +4 dBu standard, and use the –10 dB setting when connecting to unbalanced inputs on consumer equipment operating at the –10 dBV standard. Although the trim control is typically set to one side or the other, it can be adjusted to any setting between the +4 and –10 positions if necessary.

AC Socket

Connect the included detachable power cord to this AC socket (2-prong IEC connector) on the rear panel. Make sure the AC SELECT switch is set to the correct AC voltage (see AC SELECT Switch).

POWER Switch

Push this switch up to turn the Big Knob on. Press the bottom of this switch to put the Big Knob into standby mode. It will not function, but the circuits are still live. To remove AC power, either turn off the AC mains supply, or unplug the power cord from the speaker and the AC mains supply.

AC SELECT Switch

Set this switch to the 100-120V position for 100 VAC and 120 VAC power, and to the 220-240V position for 220 VAC and 240 VAC power.

POWER

MONITOR A MONITOR B

MONITOR C

OUTPUTS

 

 

STUDIO

 

DAW

 

 

 

 

SOURCES

 

 

 

ON

2-TRACK

2-TRACK

DAW

PHONES

 

PHONES

2-TRACK

 

+4dB

 

2-TRACK

 

 

+4dB

 

 

 

 

A

B

OUTPUT

AMP

 

MIX INPUT

 

A

 

-10dB

 

B

 

 

 

-10dB

 

 

 

 

 

 

 

 

 

 

 

 

U

L

(MONO)

R

U

 

L

(MONO)

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-10dB +4dB

-10dB +4dB

-10dB +4dB

+4dB

+4dB

+4dB

+4dB

-10dB +4dB

 

+4dB

 

 

 

 

 

 

 

 

 

 

 

-10dB

-10dB

-10dB

-10dB

 

-10dB

 

 

 

 

 

 

 

 

 

 

 

L

L

L

L

L

L

L

L

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-10dB

+10dB

 

BAL/

 

-10dB

+10dB

 

 

BAL/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNBAL

 

 

 

 

 

UNBAL

AC SELECT

 

 

 

 

 

 

 

 

 

 

DAW

 

+4dB

 

PHONO

GROUND

TALK BACK

 

 

 

 

 

 

 

 

 

 

 

-10dB

 

 

 

FOOT

 

 

 

 

 

 

 

 

 

 

MIX

 

 

 

 

100-120V

220-240V R

 

 

 

 

 

 

 

 

 

 

(MONO)

 

 

 

L

R

SWITCH

R

R

R

R

R

R

R

R

 

 

U

L

R

U

 

 

 

 

 

 

 

 

 

 

 

 

-10dB

+10dB

 

BAL/

 

-10dB

+10dB

RIAA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BAL/UNBAL

BAL/UNBAL

BAL/UNBAL

BAL/UNBAL

BAL/UNBAL

BAL/UNBAL

BAL/UNBAL

BAL/UNBAL

 

BAL/UNBAL

 

 

 

UNBAL

 

 

 

 

 

 

12

BIG KNOB