Sonance AS2S instruction manual Connecting the AS2/S see Illustration, Specifications

Using the AS2 Control Output with Multiple Slave Units

The AS2’s Control Output can supply up to 200mA of current. This allows it to be daisy-chained with up to two (2) AS2/S slave units (or up to five (5) AL2/S slave units).

CONNECTING THE AS2/S (see Illustration 5)

Illustration 5: AS2/S Connections and Controls

Main	Control	Remote
Input	Input	Input

I N S T R U C T I O N M A N U A L

A S 2 a n d A S 2 / S I N D U S T R Y U P G R A D E AUTOMATIC SECONDARY SPEAKER SOURCE SELECTOR

OTHER SONANCE INDUSTRY UPGRADE COMPONENTS

AVL1 Automatic Audio/Video Source Selector

The AVL1 provides automatic stereo line-level audio and composite video switching between two audio/video sources (such as a VCR, cable TV tuner or DVD player). Features and operation are otherwise identical to the AS2.

AL2 and AL2/S Automatic Secondary Source Selector (Line-Level)

The AL2 and AL2/S function identically to the AS2 and AS2/S except that they switch line-level audio signals instead of speaker-level audio signals. Typical applications would be switching between two different inputs in a whole- home audio system or home theater system,or combining two different audio systems. Features and operation are identical to the AS2 and AS2/S,except that

+L– –R+

INPUT A

	+L– –R+
+ –
CONTROL INPUT	INPUT B
12VDC 100mA

AS2 S

SLAVE,

SPEAKER LEVEL

+L– –R+

OUTPUT

the AL2 and AL2/S operate at line level.

LS2 and LR2 Balanced Audio Sender and Receiver

The LS2 and LR2 are the most efficient and highest-quality way to distribute audio throughout a residential or commercial system. The LS2 converts typical line-level audio signals to balanced configuration, allowing them to be sent long distances and in close proximity to sources of noise interference without inducing noise or high-frequency roll-off.

As a general rule of thumb, a balanced signal should be used for all but short lengths of audio cable (under 20 feet) and wherever the possibility of signal interference is likely. This includes where the audio signal passes near dimmers, transformers, fluorescent and neon lights, or along the same pathways as house current.

Output

The AS2/S is a ‘slave’ unit that operates similar to the AS2, except that its input switching is controlled by an external voltage source. In most systems the control voltage will be supplied by the Control Output connector of an AS2 unit, but any 12V DC source (with a minimum of 80mA of current) that switches on and off can be used as a control trigger.

1.Connect the left & right speaker outputs of the main (default) amplifier to the AS2/S’ Input A terminals; connect the left & right speaker outputs of the remote amplifier to the AS2/S’ Input B terminals (see Step 1 of Connecting The AS2).

Note: The AS2/S can be used with amplifiers up to 100 watts RMS/channel.

2.Connect the AS2/S’ left & right Outputs to the local zone speakers.

3.Connect the switching 12V source to the AS2/S’ Control Input connector.

•You can use any 2-conductor wire (16ga ~ 22ga) to connect the AS2/S Control Input terminals to the Control Output terminals of an AS2.

Caution: Do not short the ‘+’ and ‘–’ terminals together on the AS2 or AS2/S

Control Outputs/Inputs.

SPECIFICATIONS

Power Consumption (AS2):	120mA ±5% @ 12VDC
Power Consumption (AS2/S):	75mA ±5% @ 12VDC
Dimensions (W x H x D):	4” x 2” x 3” (102mm x 51mm x 76mm)

Active circuitry in the LS2 sends the balanced signal to the LR2, which converts it back to an unbalanced line level signal that can be connected to the audio component. The LS2 and LR2 must always be used with each other unless the audio equipment has balanced inputs or outputs (such as profes- sional sound or recording equipment). In this situation the LS2 could be used as an unbalanced-to-balanced converter and the LR2 could be used as a balanced-to-unbalanced converter. The LS2 can also be used with the 275 SE and ASAP2 SAT amplifiers with an LR1 SAT module (part# 91815) installed.

VT1 Video Trigger

The VT1 provides a 12V DC signal when a video sync pulse is detected (pic- ture or blue screen). This can be useful in triggering any component requir- ing a 12V signal. An LED indicates when the unit is active. A detachable 12V DC power supply is included.

RFGI1 Radio-Frequency Ground Loop Isolator

A passive device, the RFGI 1 is used to break a ground loop that can occur when using a cable TV or antenna feed along with AC system grounding. The RFGI1 blocks low frequency and DC by capacitor-coupling the shield and the center conductor of any RF cable connected through it. This prevents the occurrence of low-frequency humming and TV screen hum bars. The RFGI1 connects between the main cable TV feed and the cable distribution box, RF amplifier, cable converter,VCR or TV. F-connections are used on each side for a secure and reliable termination. Because it does not allow any RF leakage, the RFGI1 is a superior termination compared to a 75-to-300-to-75 ohm bal- anced connection.

OP3 Output Pad

Attenuates a stereo speaker-level signal to a stereo line-level signal. Can be used to create an additional preamp signal from any amplifier or receiver speaker terminals. Can also be used to add line-level output capability to a TV with only external speaker leads. Use in conjunction with a 2-female to 1-male Y-cord to sum left and right channels for monaural applications.

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