Sennheiser SP230 User manual

SP230 Operating Instructions

SP230 Operating InstructionsSP230 Operating Instructions

SP230 Operating Instructions

The SP230 is a portable, two channel infrared system with the ability to change

modes of operation from single channel transmission to two channel operation or

stereo with the flip of a switch. Two step installation merely re uires the

connection of a microphone, CD player, or similar audio source and 110 VAC.

Once turned on, the SP230 is ready to transmit.

This system is designed to be used on table tops or any flat surface. A carrying

handle has been provided for easy portability from room to room. For better

coverage in large halls, the SP230 can be mounted on a heavy duty microphone

or speaker stand and be raised as high as necessary. A threaded 3/8” insert for

this is located on the base of the unit.

The SP230 can accept both balanced microphone inputs and -10dB high

impedance line inputs. The microphone input passes directly to the microphone

preamp. The line input features a variable line input level control and is

transformer isolated for protection against improperly grounded systems. Both

the microphone and line inputs may be used separately or together with

balancing of levels using the input level control located at the top of the rear

panel.

Specifications

Sub-carrier fre uencies 2.3 and 2.8 MHz (switchable or stereo)

Inputs Two XLR balanced mic level

Two ¼” line level

Output Two ¼” line level

Power re uirements 110 VAC

Dimensions 10” W x 7” D x 8.5” H

Weight 9 lbs., 8 oz.

Compatible Infrared Receivers

Mono Receivers RI250, RI150

Stereo Receivers HDI302, RI810S, HDI830, RI830S

Optional Accessories

Soft Carrying Case SC110

Charger / carry case HC230

Chargers (receiver dependent) L151-10/NT, L300-10

Installation

Using the 110VAC power cord, plug the unit into a standard 110VAC power

outlet. Plug the cable into the socket on the SP230 (see line drawing). Switch

the “Power” selector to the “On” position (see line drawing).

Audio Connection

Plug in the audio input(s) to “Line In Channel 1 and/or 2” via 3 pin XLR for mic

level input or ¼” plug for line level (see above line drawing).

Using the “CH selector” (see line drawing), select Channel 1 (for single channel

audio at 2.3 MHz); Channel 2 (for single channel audio at 2.8 MHz); or, Stereo

(for 2.3 and 2.8 MHz) operation.

To feed recording e uipment or house PA system, use the “Line Out”

connections (see line drawing) via ¼” plug(s).

Audio Adjustments

The SP230 comes e uipped with internal Automatic Gain Control (AGC) circuitry

which automatically adjusts the audio levels, therefore, set the line level controls

(see line drawing) to the maximum (clockwise) position.

When using a combination of mic level and line level inputs, mixing the audio

input signals can be accomplished using the “Line Level 1 and/or 2” control knobs

to achieve the desired output.

Master / Slave Options

The SP230 can be used as a Master unit, when used alone; or, as a Slave

emitter when used with a separate modulator (e.g., SI1015 rack mount

modulator). Please note: only the modulator accepts the original audio program

directly. When using the SP230 as a master unit, position “Master” switch (see

line drawing) in the Master position.

LEVEL

CONTROLS

BNC CONNECTORS

110VAC

MASTER SWITCH

BARRIER CONNECTIONS

POWER LED

MODULATOR LED

To increase the infrared coverage for larger areas when the SP230 is being

utilized as a Master unit, connect a 50 Ohm Coax cable from the BNC output (see

line drawing) to the BNC input of an emitter (SZI1015, SZI1029, etc.).

To use the SP230 as an emitter only, move the “Master” selector switch (see line

drawing) to the Slave position. By doing this, the modulator is disconnected

allowing use of separate modulator. Then, connect the RF audio signal output of

a modulator to the “In” BNC connector (see line drawing).

System Placement

Place the SP230 on a table, floor stand, or wall mount at the front of the room, in

the center, at eye level (or higher) in a slightly downward fashion facing the

audience. The best possible transmission uality can only be obtained via “line

of sight” with the infrared receivers.

If using the SP230 with an SZI1029 or SZI1015 emitter, position each unit in the

corners of the front of the room diagonally facing the center of the rear of the

room.

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