Ensemble Designs 6600 Series Analog Audio DAs and Frame Models 6601, 6601R and Frame 6600 - Manual (Page 7)

6601R ANALOG AUDIO DA
Description
The 6600R is a modular, high performance audio distribution amplifier intended for studio
quality audio distribution systems. It is designed to be operated from the 6600 audio
mounting frame.
The module can be configured as a 1 input by 6 output monaural, or as two,1 input by 3
output stereo amplifiers, just by moving one internal jumper. In the MONO mode only the
Channel A input connectors are used; the Channel B input is left unconnected.
All inputs can be connected balanced or unbalanced. Outputs are always balanced. The
unit offers a ± 20 dB remotely controlled audio gain, which is selectable to either remote
or local operation.
Each module has its own on-board voltage regulators with fuse protection. Any failure of a
single module will not effect any other.
Installation
The 6600 audio distribution amplifier is designed to be mounted in the 6600 audio
mounting frame, (up to twelve modules can be installed). There are no special cooling
requirements, although care should be taken to ensure that extremely hot equipment is
not installed directly beneath the frame.
It is recommended that when redundant power supplies are included in the frame, the two
power cords be connected to different AC supplies. In this way the frame will continue to
operate even if there is a partial failure of plant power.
Before installing the module in the frame, set internal jumper H1 to either MONO or
STEREO mode. Set switch S1 for either LOCAL or REMOTE gain control. The jumper,
gain and switch controls are illustrated in the figure below.
Model 6600 Analog Audio DAs and Frame
6600-7
S1
LOCAL
REMOTE
MONO
STEREO
CH A
CH B
CH B BALANCE
CH A BALANCE
H1
RV7
GAIN
RV
6 RV
1
RV
5
RV
3
6601R Component Side View