Arrakis ACR-8
P RODUCT DES CRIP TION
Product Description
ARC-8
Advanced Radio Console
10 Source inputs total
2 mic, 7 stereo line, 1 PC USB
8 input channels
2 high quality Mic channels (with optional 48VDC phantom power)
5 stereo line input channels (with both unbalanced and balanced inputs)
Channel 8 is selectable between a PC USB sound card input & a stereo line input
Stereo Program Mixing bus (with both balanced and unbalanced outputs)
PC USB output of the Program bus for recording in digital direct to your PC
Monitor, Headphone, and Cue system with External input for off air monitoring
Cue system autocues (with Program dimming) into the Monitor & Headphone systems
Mix minus Telephone output for interfacing with an external phone hybrid
Conductive plastic slide faders & LED switch lamps for long life
With a single stereo mixing bus, the ARC-8 is ideal for fast paced live on air, production, and
remote applications. Two mics supports a host and guest talk format. The mix minus bus (for
an external hybrid) supports Telephone talk formats or call ins. The ‘Talk’ button on mic channel one feeds the mic to the caller and the caller to the console cue system... fast and easy!
The ARC-8 even has a built in PC USB sound card on channel eight to play in digital directly
from your favorite PC audio software. At the same time, the Program output from the console
records in digital over the USB directly to your PC recording software. Arrakis even provides
‘Digilink-Xtreme (ARC mode)’ software with the system to get you on air & doing production
immediately. The ARC-8 is also easy to install with BOTH professional balanced and consumer unbalanced input & output jacks. The ARC-8 is ideal for any on air or production radio
application !
2.1
OP ERA TIN G IN S TRUCTION S
Quick Start
CH 3 A/B switch
VU Meters
CH 8 A/B switch
select between an unbalanced or
balanced source input
LED VU meters with accurate VU ballistics
for the main Program bus
select between a stereo line level input and
an internal PC USB soundcard
Talk to the Phone
hybrid output, Ch 7
will be heard in cue
Cue
switchs
Monitor Input
Selector
Left
ARC-8
Right
CH 3
Program
-20 -15 -10 -5
Talk
Cue
Cue
-3-1
0
1 2
Cue
Arrakis Systems inc.
CH 8
-20 -15 -10 -5
3
Cue
-3-1
0
1 2
PC
3
Cue
Cue
External
selects an External
audio input (such as
off air) as the
source for the Monitor & Headphone
systems
Monitor &
Headphone
Level Controls
1
Mic 1
2
3
4
5
6
7
8
Monitor
Head
phone
Mic 2
Two Mic channels
For normal on air talent
or a Host and Guest talk
format.
Channel one features a
‘Talk’ button to talk to the
phone hybrid.
Channel On-off switches
Five line channels
For CD players, MP3 players, and other analog
sources.
Channels 3-7 have BOTH
unbalanced and balanced
stereo input jacks
PC channel
The ‘B’ input on channel 8 is an internal PC USB sound card for playing
directly in digital from a Windows PC.
The ‘A’ input is a stereo, RCA, unbalanced, -10dBu, consumer level input.
Auto-cue into the Monitor and Headphone systems
slide faders for control of monitoring
level
Channel Seven Phone
Channel 7 can be used as a Telephone input and generates a Mixminus output to be connected to
an external phone hybrid. Turn
the Cue button on to listen offline to the caller. Push the Talk
switch on the Mic one channel to
use the Control room mic to talk
off-line to the caller (the caller is
auto-cued). To place the caller on
air just turn the channel on.
The ARC-8 features a cue system that plays through the monitor and headphone systems. To cue a channel, depress the cue switch. The
Program audio in the Monitor speakers will dim and the Cue audio from the cue’d channel will play through the monitor speakers and
through the headphones.
3.1
OP ERA TIN G IN S TRUCTION S
Mono mic level Input Channels (channels 1 & 2)
Channels one and two are dedicated mono microphone channels.
CHANNEL ON AND OFF
To turn a channel on, simply push the red ON switch at the bottom of the fader. When the channel is on, the LED indicator above the
switch will light. To turn the channel off, simply push the red ON button again.
CHANNEL ON AND OFF LOGIC
Channels One and Two are assumed to be located in the control room and therefore do not require remote channel on/off logic.
TALK BUTTON ON CHANNEL ONE
This button activates a bi-directional off air talkback between mic one and the channel 7 phone input if an external hybrid is connected. The mic feeds the caller while the caller feeds the console cue system. The caller is heard on the monitor speakers and in the
headphones. The switch is a push-push interlocking type. Push once for on, push again for off.
Push to talk to the phone caller on channel seven (if an external phone hybrid is
used). The caller will be heard through
the cue system. Channel seven does not
need to be on.
CHANNELS 1 & 2 ARE
MONO MIC LEVEL CHANNELS
Slide fader
Level control
Channel
On switch
3.2
OP ERA TIN G IN S TRUCTION S
Stereo Line Level Input Channels (channels 3-8)
The ARC-8 has stereo line level channels on channel 3-7 plus a USB computer sound card on chanel 8.
CHANNEL ON AND OFF
To turn a channel on, simply push the red ON switch at the bottom of the fader. When the channel is on, the LED indicator above the switch will light. To turn the
channel off, simply push the red ON button again.
CHANNEL ON AND OFF LOGIC
The console does not have channel logic to start or stop audio source.
CUE
To activate cue, click on the CUE button above the fader. To exit the cue mode, click on the CUE button again. Cue audio will be heard in the monitor speakers and in
the headphones.
Slide fader
Level control
CHANNELS 3-7 ARE
STEREO LINE LEVEL
CHANNELS
Cue Bus
Assignment
Channel
On switch
3.3
CHANNEL 8 IS
THE PC INPUT
OP ERA TIN G IN S TRUCTION S
The Control Room Monitor system
The Control Room Monitor system is the main audio monitoring system for the studio. It features an input selector switch and a volume level control. The output of the monitor system is connected to an external audio power amplifier and speakers. The level control
on the external amplifier should be set for the maximum sound level desired in the studio.
MONITOR MUTING
When a control room microphone is turned on (channels one or two), the monitor system will mute (audio turned off) so that there
will not be feedback from the speakers to the microphone.
MONITOR SELECTOR SWITCH
This switch selects the audio source for the Monitor system. Push the switch down (LED will light) to select an external input to the
monitor speakers. This is usually an off-air source so that the final output of the station can be monitored. When the switch is up
(unlighted) the Program bus output of the console is being monitored.
MONITOR VOLUME FADER
Sets the monitor level into the external audio amplifier and speaker.
MONITOR SELECTOR SWITCH
CONTROL ROOM
MONITOR LEVEL CONTROL
3.5
OP ERA TIN G IN S TRUCTION S
The Headphone system
The Headphone (earphone) system in the ARC-8 console is provided so that audio can be listened to while the microphone is active
and the monitor speakers are muted. The Headphone system receives the same audio feed as the Monitor system but does not mute
when the microphone channel is turned on. The Headphone system has a 1/8" headphone jack on the rear of the console. The headphone amplifier connected to the headphone jack is designed to work with high impedance (not 8 ohm) headphones.
CUE
The ARC-8 console features Autocue. Whenever a channel is placed into cue, the Program audio in the Headphone system will dim and
the Cue audio will play over the Program signal.
MUTING
The headphone system is not muted. When the control room microphone is turned on, the Monitor system will mute (audio is turned
off) so that there will not be feedback from the speakers to the microphone. The headphone system can not have audio feedback so
muting is not required.
MONITOR SELECTOR SWITCH
This switch selects the audio source for the Monitor/Headphone system. Push the switch down (LED will light) to select an external
input to the monitor speakers and headphones. This is usually an off-air source so that the final output of the station can be monitored. When the switch is up (unlighted) the Program bus output of the console is being monitored.
HEADPHONE VOLUME FADER
Sets the headphone level to the internal headphone amplifier.
MONITOR SELECTOR SWITCH
HEADPHONE
LEVEL
CONTROL
3.6
OP ERA TIN G IN S TRUCTION S
The Cue system
The cue system is designed for monitoring an audio source without placing it on air. This feature is useful for listening to a network
feed before bringing it to air, listening to a CD to be certain it is the correct song, etc. The cue system features ‘Auto-cue,’ where
cue is heard in the Monitor speakers and separate Cue speakers are not required.
ACTIVATING CUE
To activate cue, click on the CUE button on an input source channel. To exit the cue mode, click on the CUE button again. The cue signal
is PRE-fader and therefore the fader level and the channel ON-OFF status has no effect on the cue signal.
CUE AUDIO
Cue audio will be heard in the Monitor speakers and the Headphones. In the Monitor and Headphone system, Autocue will dim the Program in the headphones and play the cue audio over top of program audio.
3.7
OP ERA TIN G IN S TRUCTION S
The VU meters
The ARC-8 console features a single set of fixed LED VU meters that monitor the stereo Program output of the
console. The meters feature standard ‘VU’ ballistics.
Left
ARC-8
Program
-20 -15
Cue
Talk
1
Mic 1
Right
CH 3
2
Cue
3
-10-5 -3-1
0
1 2 3
Cue
4
Cue
5
3.8
-3-1
0
PC
1 2 3
External
Cue
Cue
6
Mic 2
Arrakis Systems inc.
CH 8
-20 -15 -10 -5
7
8
Monitor
Head
phone
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