Pfl (Channel Solo Monitor); Rtn And Comm Monitoring; Output Setup And Control; Master And Aux Outputs - Sound Devices 664 User Manual And Technical Information

664 User Guide and Technical Information

PFL (Channel Solo Monitor)

Slide the PFL switch left to activate, and again to deactivate. For momen-
tary action, hold the switch left for one second or longer.
PFL stands for "Pre-Fade Listen". When any input's PFL is activated, the
currently selected monitor source is replaced with the PFL mix program.
The PFL mix program is a mono mix of the pre-fade level of all inputs
with PFL enabled. PFL monitoring only aff ects the headphone monitor, it
does not aff ect audio sent to the outputs.
The selected input's Activity LED fl ashes yellow when the input's PFL is
engaged. When one input PFL is engaged, that input's name will appear
in the lower right corner of the Main Screen. When multiple input PFL's
are engaged, PFL MULT will appear in the lower right corner of the Main
Screen.

RTN and COMM Monitoring

RTN A, RTN B, RTN C, and COM RTN inputs can be monitored quickly using the RTN Switch.
Primary Monitor Sources are monitored by sliding the RTN Switch left or right while Alternate
Monitor Sources are monitored by holding the Select Encoder then sliding the RTN Switch left or
right. The Primary and Alternate Monitor Sources can be changed from the Setup Menu options
COMMS/RETURNS > RTN Toggle Left and COMMS/RETURNS > RTN Toggle Right. To return to
the previous monitor selection, Slide the RTN Switch in the same direction of the active RTN.

Output Setup and Control

The 664 features a host of analog and digital outputs to accommodate for complex, multi-camera set-
ups. The 664 has 2 stereo output busses: The Master Bus (LR), and the Aux Bus (X1/X2).

Master and Aux Outputs

There are 4 pairs of balanced analog output connections for the Master Bus (XLR, TA3, and 2 Hirose
10-pin), and one pair of balanced analog output for the Aux Bus (TA3). Additionally, there are two
stereo unbalanced outputs for the Master Bus (TA3 and 3.5mm Tape Outputs).
The XLR and both Hirose 10-pin outputs are transformer-balanced, each driven from their own trans-
former windings for excellent isolation. Each output can be independently set to Line (+4 dBu nomi-
nal), -10, or Mic level (40 dB of attenuation versus Line) from the Setup Menu section OUTPUTS. The
master outputs are capable of driving long cable runs.

XLR

By default the XLR outputs send a balanced analog signal. These connections can be independantly
confi gured to send AES3 signal.
and R XLR connections always carry the Left and Right Master Bus program.

TA3 (Master L, R, X1, and X2)

The TA3 outputs send a balanced analog signal. The X1 and X2 TA3 connections always carry X1
and X2 Aux bus program. The L and R TA3 connections always carry the Left and Right Master Bus
program.
16
v. 1.0 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
see AES Digital Outputs for details. When set to analog output, the L