Shure M610 User Guide

OVERALL DIMENSIONS - FIGURE 1

Phase:

Pin 3 of the Microphone lnput is in phase with pin 3 of the Microphone Output and out of phase with the tip of Aux. Output and the tip of the Aux. Input.

Filter Characteristics:

Moving Filter Frequency control from 0 to 12 reduces gain by 12 d~ t 2 , jat~frequency of maximum attenuation. This center frequency is within -+20% of nominal

frequency. One octave from center frequency, moving Filter Frequency control from 0 to 12 reduces gain by

3.5 dB t 1 dB.

Below 63 switch: 6 dB per octave slope, 9 dB down (+2 dB) at 20 Hz.

Above 8K switch: 6 dB per octave slope, 8 dB down (+2 dB) at 20 kHz.

Typical filter frequency response characteristics are shown in Figures 4 and 5. Filters are electrically isolated for minimum phase interaction.

Operating Voltage:

AC Operation:

M610: 108-132 volts, 50/60 Hz, 3 watts

M610-2E: 108-132				Or 216-264		50/60	Hz,
			as	selected	by	a switch On	the
	rear panel.
DC Operation:		30	volts * 20% at approximately
		12 mA.
Temperature Range:
Operating:	-7°C	to 57°C (20°Fto 135°F)
Storage:	-29°C	to 7I0C(-20°F			to 160°F)
Net Weight: 1.8 kg (3 Ib, 15 oz)
Packaged Weight:			2.4	kg (5 Ib,	4	oz)
Dimensions:
See Figure 1.

INSTALLATION

W A R N I N G

To reduce the risk of fire or electric shock, do not expose this appliance to rain or extreme moisture.

The M610 or M610-2E is typically connected in the auxiliary, high-level line between the preamplifier/ mixer and the power amplifier, or between the microphone and the preamplifier/mixer in single-micro- phone systems. Any combination of inputs and outputs available may be used, however, according to the particular needs of the user.

The Model M610-2E is supplied with a three-con- ductor power-line cord, but no plug. The power-line cord plug should be installed by qualified service personnel. The brown lead should be connected to

the "live" or "hot" terminal of the plug, and the blue lead to the neutral terminal of the plug. The green/yellow lead is the grounding conductor and should be connected to the ground or earth terminal of the plug.

Before connecting the M610-2E to the power source, the line voltage selector slide switch on the rear panel

(Item 22 of Figure 3) must be set to the proper positionTo change the selector switch to the 108-132

V.A.C. position, loosen the mounting screw holding the switch locking tab until the tab can be rotated

away from the switch lever. Tighten the mounting screw and set the switch as

CONTROLS AND CONNECTORS

See Figure 3.

Inputs:

Microphone:

The microphone input (16), located on the rear panel and designated Mic. Input, is designed for low-impe- dance (balanced or unbalanced) microphones with 25 to 600 ohms impedance or high-impedance (unbalanced)

dynamic, ribbon, or condenser microphones. The unit is not recommended for use with crystal or ceramic micro-

phones. The impedance is selected by a slide switch

(17) above the Mic. lnput receptacle. The input receptacle is a professional three-pin audio connector (fe-

male).* Figure 2 refers to microphone connections. See

Figure 2 for lowand high-impedance connections to receptacle.

Note: Some condenser microphones produce very high output signals which may overload the input. Use of an attenuator (such as the Shure A15A In-Line Microphone Attenuator) will improve this situation.

'Designed to mate with Cannon XL series. Switchcraft A3 (Q.G.) series or equivalent connector. [Shure part 95A407 (male) or 95A548 (female).]

Auxiliary:

The Aux. lnput phono pin jack (15) on the rear panel has a built-in switch that disables the Mic. lnput preamplifier when a phono plug is inserted.

The Aux. lnput will accept output from a high-im- pedance, high-level source, such as a mixer, audio console, tape recorder, MVl-FM tuner, or phonograph preamplifier.

Outputs:

The receptacle marked Mic. Output (18) is a dual-im- pedance output, either low impedance balanced or highimpedance unbalanced, as selected by the switch (19)

above the receptacle. The receptacle is a professional three-pin audio connector (male).* See Figure 2 for output receptacle connections.

The phono pin jack marked Aux. Output (20) is a highimpedance, high-level output designed primarily to feed