AMC IA series User Manual

Wiring Guide
We recommend using pre-built or professionally wired balanced line for input connector. 22 to 24
gauge cables.
Below picture shows connector pin assignments for wiring.
1. ground/shield
2. hot (+ve)
3. cold (- ve)
For unbalanced connection
pin 1 and 3 have to be bridged
For output connector we recommend using pre-built or professionally wired, high quality, and heavy
gauge speaker wires. You may use Phoenix blocks for your output connectors.
To prevent the possibility of short-circuits, wrap or insulate exposed loudspeaker cable connectors.
Using the guidelines below, select the appropriate size wire based on the distance between amplifier
and speaker. The wire sizes are given for a 4-ohm load.
NOTE : Custom wiring should only be performed by qualified personnel.
CAUTION : Never use shielded cable for output power wiring
Distance
Wire size
Up to 25 ft. (7,5 m) 16 AWG (Ø 1,29mm)
25 - 40 ft. (7,5 - 12 m) 14 AWG (Ø 1,62mm)
40 - 60 ft. (12 m - 18 m) 12AWG (Ø 2,05 mm)
60 -100 ft. (18 m - 30 m) 10AWG (Ø 2,5 mm)
100 - 150 ft. (30 m - 45 m) 8AWG (Ø 3,2 mm)
150 - 200 ft (45 m - 60m) 6AWG (Ø 4,11 mm)
4 Ohm Wire Guide
OUTPUT : Maintain proper polarity on output connectors.
For output channel, connect the output EURO block terminals to the loudspeaker loads. Use
terminals marked (4Ω) for a 4-ohm loudspeaker load, or use terminals marked 70V or 100V and
COM for constant-voltage loudspeaker loads.
Connect the COM terminal to speaker negative(-) lead; connect one of the other terminals to
speaker positive(+) lead.
Impedance and output voltages
iA120
4Ω / 22V 41Ω / 70V 83Ω / 100V
iA240
4Ω / 31V 21Ω / 70V 41Ω / 100V
iA360
4Ω / 38V 13.6Ω / 70V 27.8Ω / 100V

AMC IA series Specifications

General

Brand	AMC
Model	IA series
Category	Amplifier
Language	English