| ▪ Variable trigger threshold for voice activation |
| ▪ Optional impedance matching transformer 10K/600 Ohm |
| ▪ C10 andC20 have 10 W and 20 W output power |
| ▪ Transformer isolated 4/8/16 Ohm, 25 VAC and 70 VAC output taps |
| ▪ Rear panel auxiliary receptacle |
| ▪ One dedicated MIC 1 input - Lo-Z balanced |
| ▪ One switchable MIC 2/AUX 1 input |
| ▪ Contact muting of AUX input |
| ▪ Transformer isolated 600 Ohm telephone paging input |
| ▪ Separate rear panel-mounted TEL volume control |
| ▪ Voice-activated muting of AUX input by TEL input |