Emtech Electronics EJ-8 User Manual
MODEL EJ-8
Multi-Input Adapter Box
Solve Your Sound
Connection Problems The Easy Way…
Table of Contents
Controls and Functions (illustration)
Controls and Functions (description)
Basic Information
Read this section for basic information on the EJ-8: what it includes, how it
works, and what you need to use it.
Using the EJ-8 with Audio Equipment
Read this section for step-by-step instructions for using the EJ-8 in some common
situations.
• Using the EJ-8 with audio devices with AUX-type connections
• Using the EJ-8 with audio devices with loudspeaker connections
• Troubleshooting
Technical Information
Read this section for details about the EMtech Model EJ-8 Multi-Input Adapter
Box’s technical specifications.
Warranty
2
Controls & Functions
1. Stereo Input - accepts stereo line level audio signal input - 1 volt RMS to
microphone.
2. Loudspeaker Level Input – accepts speaker level signals up to 10 volts RMS
and provides a power load 10 ohms – 10 watts for lowest distortion noise.
3. Mono RCA, 1/8” Mini & ¼” Phone Auxiliary Line Level Inputs – accepts line
level 1 volt RMS inputs – buffered inputs allow up to six different inputs at
the same time.
4. Cords Clip – patch cords are clipped to the EJ-8’s box so they won’t get lost.
Clip can be removed to add or subtract patch cords.
5. Hum Switch – connects the shield ground from inputs to output allowing a
selection for lowest hum pick up.
6. Volume Control – controls signal volume from Inputs to Microphone Out.
7. Output Cord to Microphone Input (XLR) – buffered isolated microphone level
signal out to: microphone input jack of the sound system, microphone wall
jack, existing P.A., sound reinforcement system, or house sound system.
3
The EJ-8
Basic Information
The EJ-8 is a multi-input adapter box that allows you to use one or more pieces of
audio/visual equipment with the speakers and volume of an existing public address (P.A.)
or sound system. Several audio devices can be used simultaneously. The EJ-8 provides
everything you need to simply connect tape recorders (of all types), record players, movie
projectors, video cassette recorders, telephones, or electronic instruments (such as guitars
or keyboards) to the microphone connection of an existing sound system.
Even though these audio devices use different plugs and strengths of signal, with
the EJ-8 and its basic set of cables, these usually incompatible audio devices can work
together. The EJ-8 provides the necessary matching and isolation to protect the existing
public address system while providing a high quality audio interface to the system.
The EJ-8 has its own volume control which allows you to balance the signal of
the incoming sound to the needs of your sound system. When more than one audio
device is connected through the EJ-8, the EJ-8 serves as a master volume control. The
EJ-8 uses the power from the signal itself; this means it doesn’t need batteries or a power
cord.
The cords attached to the back of the EJ-8 are some of the most useful kinds of
cables for connecting your equipment to the EJ-8. These cables are clipped to the EJ-8’s
box so they won’t get lost. If you find you frequently need another type of cable (as
when using two audio devices which require identical cables), you can easily add it to the
clip. Use a Phillips screwdriver to remove the clip to add more cords.
• Mini (1/8”) to Standard (1/4”) Stereo Phone Plugs
• Standard (1/4”) to Standard (1/4”) Phone Plugs
• Paired RCA to Mini (1/8”) Phone Plugs
The EJ-8 is the finest multi-interconnect system available. The EJ-8 does not
compromise the quality of sound of the equipment it is used with; it expands the
capabilities and range or use of whatever equipment you have. The EJ-8’s straightforward, efficient design ensures that you will enjoy many years of trouble-free use.
Using the EJ-8 with Audio Equipment
Line Level Audio Devices
Audio device Output labeled: LINE OUT, AUXILIARY, AUX OUT, EARPHONES,
EAR, EXT. SP., PHONO, etc.
4
Loading...