Remote Auto Transformer

INSTALLATION INSTRUCTIONS

RAT1

The RAT1 is an infrared remote controlled stereo speaker volume control with impedance matching capability. It allows individual volume control of from one to 16 pair of stereo speakers from one stereo power amplifier, using one RAT1 for each stereo speaker pair. It is controlled with any Xantech IR Receiver or keypad or with Xantech MIRV1 motorized volume controls. The RAT1 maintains correct imped- ance matching between the amplifier and the speak- ers with the use of instant setting S1 to S8 jumpers, located on the unit. This eliminates the need for separate impedance matching devices in multi-room installations.

RAT1

REMOTE AUTO TRANSFORMER

		INIR	STATUS	GND	+12VDC	L+ L– R– R+	L+ L– R– R+	8 4 2 1
STATUS	POWER	INIR	STATUS	GND	+12VDC	L+ L– R– R+	L+ L– R– R+	S S S S
						AMPLIFIER	SPEAKER
						INPUT	OUTPUT
	12VDC

Fig. 1 The RAT1

FEATURES AND SPECIFICATIONS

•10-position relay driven stepped auto transformer design.

•Tri-Fi™ winding system for highest quality audio performance.

•Amplifier Input: 4-screw plug-in connector.

•Speaker Output: 4-screw plug-in connector.

•IR, STATUS & +12V: 4-screw plug-in connector.

•STATUS Input Jack: 2.1mm coaxial type.

•POWER Input Jack (+12V): 2.1mm coaxial type.

•Power Consumption: 300 mA @ +12V DC. Use Xantech Model 786-00 or 782-00 Power Supply.

•Requires IR commands from the RC68+ (or RC68) Programmer or from the MIRV1, for volume operations.

•Using the RC68+ Programmer, internal E2 PROM can be set to different group codes for independent operation of RAT1's when on a common IR bus.

•Factory preset Group Code number is 30.

•Independent grounds between channels.

•75 watts per channel music power, 25 watts per channel continuous.

•Frequency response: 20 Hz - 20,000 Hz ±1 dB at 1 Watt power input.

•Attenuation: 10 steps at 3 to 6 dB per step, 35 dB maximum.

•Impedance Multiplier Settings: S1, S2, S4, & S8.

•Plug-in connectors accept wire sizes from 24 to 12 gauge.

•"Flat Pack" design permits easy mounting.

•Dimensions: 8" x 4-1/8" x 2-5/8" (203mm x 105mm x 67mm).

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Speakers & Volume Controls