4
Description of the DELTA System
ADA's DELTA System is a multi-room/multi-source system that utilizes ADA's
exclusive ADA Bus™ Bi-Directional serial data network. The Delta-88 acts as both a source
selector, preamplifier, and amplifier. Apart from being the ultimate in multi-room technology,
the Delta System will operate perfectly as an audio-video selector when one zone (two, or up
to 256 zones) is set up as a home theater using ADA's SSD-66 Dolby ProLogic® Surround
Sound Decoder or SSD-66THX Home THX® Controller. The user is able to select audio sources
(and video sources when using the VSM-8 Video Switching Module) with the MC-3000 Music
Control, MC-3011 Decora® Style Keypad (Single Gang), MC-3800 Music Control with Nu-
meric Direct Access (triple gang), MC-3000 OD All Weather Outdoor Keypad, or MC-0038
Hand-Held IR Remote for that zone, while other zones can select their own source (from their
own keypads or IR remotes). All of the information that appears on the L.E.D. display of the
Delta-88 (and MT-3000, SSD-66, PCT-4, or PCT-8 if used) will also appear on the MC-3000
Series controls, so the user is aware of the system's status at all times without having to be in
front of the rack of equipment. From MC-3000's and MC-3800's, the user can also access other
rooms and turn them on or off, program a source to those rooms, and even adjust the other
room's volume level.
DELTA -88 System Controller
• an ADA Bus™ Component • is the heart of the Delta System.
As many as 32 Delta-88s can be stacked together to provide a total of 256 possible rooms/zones.
The Delta-88 can house up to eight cards (RAM-50 Room Integrated Amps, RBM-50 Room Bass
Amps, or VSM-8 Video-follow-Audio Switcher {one per Delta-88 max}). From the front panel,
the Delta-88 permits control of all rooms, room acoustical preset programming, and system
programming. The Delta-88 also provides the power supply for the room amplifiers (RAM-
50s and RBM-50s) and is fully fanned cooled. The Delta-88 can accept up to eight sources for
direct access from any 3000 Series keypad. If video sources are included among these eight
sources for composite video distribution, a VSM-8 Video-follow-Audio Switching Module
will be required so that the video sources' composite video outputs connect to the Delta-88.
When using several Delta-88s to form a system, sources are connected to the first Delta-88 and
the additional Delta-88s are connected to the first Delta-88 with a ribbon cable (System Bus).
This ribbon cable sends balanced audio signals to all other Delta-88s. Composite video signals
will need to be split (use an ISO-V Video Isolation Amplifier) to both Delta-88s' VSM-8s. When
using up to seven audio only sources and as many as eight video sources with the need for
composite video switching and/or keypad control of the video sources, use the VS-3 as an
alternate scrolling input selector (see pages 44-55).
FM TUNER 1
FM 1
FM 2
AM
CD 1
CD 2
AUX
CASS
1
CASS
2
ROOM
OF
BASS
UP
BASS
DN
VOL
UP
VOL
DN
TREBLE
UP
TREBLE
DN
BAL
L
BAL
R
LOUD
STORE
ENHAN
STEREO
LABEL
FAMILY ROOM
ROOM 1 ROOM 2 ROOM 3 ROOM 4 ROOM 5 ROOM 6 ROOM 7 ROOM 8
ALL
MAIN
ON
OFF
DELTA-88
SOURCES
ROOMS