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Using the SM8 with an audio recorder or VCR 

If you are using an audio recorder, press and hold down Button Number 2 (approximately 4 seconds) until 
the Recorder light comes on; then connect the VCR as shown in the drawing below.  

If the SM8 is not going to be used with an audio recorder, press and hold down Button Number 2 
until the Recorder light goes off. 
 
Changing SM8 Modes: Switcher Mode or Mixer Mode 

The SM8 can be set to operate as a 1-of-8 channel switcher 

or

 as an 8 channel mixer. In the 1-of-8 

mode, only one of the eight microphones can be monitored at a time. In the mixer mode, any combination 
of microphones can be mixed together. 
To switch between the two modes, press and hold down Button Number 1 (approximately 5 seconds). All 
8 of the channel lamps will light if the mixer mode has been selected. If the switcher mode is selected, all 
the lamps will go out. The SM8 will remember your last setting and on power up, the SM8 will load the last 
setting. 
 

 

 

 

Figure 1. 

 
 

 

Caution 

It may be against the law to install this microphone kit in certain environments. It may also be against the law to 
record conversations of the person(s) being monitored without their knowledge. It is the responsibility of the 
installation company and end-user to determine if the application of this product is legal. These laws vary from state 
to state. If you are not informed on these matters, consult a qualified attorney or contact the appropriate state agency. 
A sticker is provided with this kit for the applications where notification must be posted. 

 

Warranty 

All ETS products carry a one year parts and labor warranty. This warranty does not cover damages as a result of 
misuse, improper handling of the unit or exposure to extreme temperatures or moisture. At its discretion, ETS 
reserves the right to repair or replace this unit under the conditions of the warranty. If you experience problems with 
your equipment call ETS at: 505-888-3923 to obtain a return authorization number. Equipment requiring repair 
beyond the warranty period or units that have been damaged or are not covered under the warranty can be repaired 
by ETS for a minimal cost under most conditions. 

 

 

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