Anthem Audio Amp 1 manual C O N T R O L F U N C T I O N S, C O N N E C T I O N F U N C T I O N S

C O N T R O L F U N C T I O N S

ALED

When the LED is lighted the Amp 1 is “ON”, receiving power from the power supply.

BON-OFF BUTTON

When in the ON position (button depressed), high voltage power is received by the Amp 1 circuitry from the power source. Due to the warm up characteristics of tubes, it will take 30 seconds for the tubes to pass full signal. It is suggested that the Amp 1 remain muted or the Volume turned down for this first minute. When in the OFF position (not depressed), the Amp 1 is not receiving power and is not opera- tional.

C O N N E C T I O N F U N C T I O N S

CDETACHABLE AC POWER CORD SOCKET

Plug the Detachable Power Cord into this socket (see Figure 2). The Amp 1 is factory set for the correct operating voltage for the area in which it is sold (see shipping box for voltage setting). If a different operat- ing voltage is required, please contact an authorized Sonic Frontiers or Anthem dealer, distributor or the factory directly.

DSPEAKER CONNECTION POSTS

These 5 way binding posts accept a connection from one pair of speakers. The negative connections are to be made to the black connectors; left speaker to the terminals marked left and right to the terminal marked right. The positive connections are determined by the speakers. If the speakers impedance tends towards an 8 ohm load, use the left and right positive (red) posts labeled as 8 ohm. If the speakers are better represented by a 4 ohm load impedance, use the positive connectors labeled 4 ohm. Consult your speaker specification sheet, manual or manufacturer directly if there is any clarification needed regarding the impedance of your speakers. NOTE: ONLY O N E PA I R OF POSITIVE C O N N E C T O R S M AY BEUSED AT A TIME. UNDER N O CIRCUMSTANCES A R E T W O PA I R O F SPEAKERSTO B E C O N N E C T E D T O BOTH 4 OHM A N D 8 O H M P O S T S .

Refer to Figure 2 for further instruction.

EPREAMPLIFIER INPUT

This input accepts RCA input connections from an external preamp or crossover; connect left channel to left channel and right channel to right channel.

F IG U R E 2

Top figure shows a connection to a loudspeaker with an 8 ohm impedance, lower figure shows a connection to a speaker with 4 ohm impedance.

WARNING-DISCONNECT THE A C D E TA C H- A B L E POWERCORD F R O M T H E AMP 1 AND WAIT 5 MINUTES BEFORE REMOV- ING COVER, TUBES OR FUSE.

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