Initial Setup

Please refer to the front and rear panel diagrams, as needed. [Page 8]

Line Level Inputs

Warning:

Always disconnect power to the amplifier when changing cables.

Two inputs per channel are provided. The RCA jack is a standard input that accepts single-ended sources. The female XLR jack allows true balanced hookup operation using the standard pin configuration:

Pin 1 Ground

Pin 2 Input +

Pin 3 Input -

Optimizing Input Grounds

System ground optimization is criti- cal to achieving low noise perform- ance. This is especially critical when using the RCA inputs.

The XLR/RCA switch is used to opti- mize the grounding at the amplifier inputs. Setting the XLR/RCA switch in the RCA position connects the RCA ground to the chassis and the power cable.

If using Balanced XLR cables then leave the switch in the XLR position, otherwise the negative XLR input will be shorted to the amplifier ground.

If using the RCA inputs and the Preamplifier has a floating ground then using the RCA switch position will give the lowest noise operation. This will connect the system ground

to the power ground at the amplifier. Try connecting the RCA ground to chassis ground by depressing the RCA/XLR switch button (RCA posi- tion). If this button is depressed and there is ground noise or hum then try setting this switch in the XLR posi- tion.

Putting this switch in the XLR posi- tion effectively lifts the RCA ground on the amplifier input and can pre- vent ground loop noise. This is espe- cially useful for systems using more than one amplifier chassis or when using the eVo4 or eVo6 amplifiers in a system.

These procedures should be ade- quate to correctly ground most systems.

© 2002-2004 bel canto design, Ltd.

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eVo User’s Guide 042104

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Bel Canto Design eVo6, eVo4, eVo2 manual Initial Setup, Line Level Inputs, Optimizing Input Grounds

eVo2, eVo4, eVo6 specifications

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